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  • 难度: 使用次数:27 入库时间:2017-10-10
    来源: 内蒙古集宁一中2016-2017学年高二下学期期末考试英语试题(东校区) Word版含答案.doc

           The current Ebola (埃博拉病毒)outbreak in western and central Africa has infected at least 3,069 people, including 1,552 dead, making it the largest outbreak in history. Ebola is a deadly virus-about 60 percent of people infected with it have died.

    How is Ebola doing its harm?

           When a person becomes infected with Ebola, the virus damages the body’s immune (免疫的)cells, which defend against infection, said a researcher at Lancaster University. But if a person’s immune system can stand up to this attack, then he is more likely to survive the disease.

           The patients that survive it best are those who don’t get such a bad disadvantage in immune system. But if the body isn’t able to get rid of this attack, then the immune system becomes less able to regulate(调节) itself. This means the immune system is more likely to run out of control, leading to a drop in blood pressure, multi-organ failure and eventually death.

           What are the common symptoms of the disease?

           Fever. Headache. Joint and muscle aches. Weakness. Diarrhea. Vomiting. Stomach pain. Lack of appetite. Chills. Rash. Redness in the eyes. Hiccups. Cough. Sore throat. Chest pain. Difficult breathing or swallowing. Bleeding inside and outside of the body.

           How to prevent the spread of Ebola?

           Ebola can be spread primarily via direct contact with patients, specifically the blood and fluids of an infected patient.

           We should avoid contact with infected patients and objects such as clothing, bedding, and needles used by them. Avoid areas where infections have been reported. For now, the disease has only been confirmed in central and West Africa, four cases in America and Europe. Avoid eating wild-caught bush meat. Researchers have suspected that the disease came to humans via animals, probably through the meat of primates(灵长类). If you’re in an area where the disease has been reported, avoid purchasing, eating, or handling wild game to stay on the safe side.

           Wear protective medical clothing if you’re around infected patients. Extreme caution is necessary. Hospital workers must use masks, gloves, goggles, and gowns, which needed to be worn at all times if you’re around infected patients.

           How Do People Survive Ebola?

           Doctors don’t know for certain who will survive Ebola, and there is no specific treatment or cure for the disease. Although in the minority, some people do recover from infection.

           Our suggestions include:

           Maintain your electrolytes(电解质) and body liquid. Sports drinks can be used. Monitor your blood pressure and control it if necessary. Dropping blood pressure may be a serious sign of infection. Breathe in an oxygen-rich environment. Quickly address any symptoms of infection. Be honest about when and where you’re feeling pain.

    12.Ebola causes the death of a human being by      .

           A. attacking him with high fever                                          B. regulating his immune system

           C. damaging his immune cells                                     D. harming all his organs directly

    13.What is NOT mentioned as the symptom of Ebola?

           A. Fever and chills                                                              B. Swallowing difficulty

           C. Lack of appetite                                                             D. High blood pressure

    14.In order not to be infected by Ebola, we should      .

           A. have the clothing of the infected cleaned

           B. avoid eating wild animals like monkeys

           C. not travel to Africa, America or Europe

           D. stay at home without going anywhere

    15.It is true that      .

           A. a certain number of people survive Ebola

           B. human has found a special cure for Ebola

           C. oxygen can save infected people’s lives

           D. low blood pressure is surely caused by Ebola

    题型:阅读理解  知识点:科普环保类阅读
  • 难度: 使用次数:16 入库时间:2017-10-10
    来源: 辽宁省沈阳市东北育才学校2016-2017学年高二下学期第二阶段测试英语试题 Word版含答案.doc

    iOS 10 The world’s most advanced mobile operating system.

    Easy to Use

    From the moment you pick up your iOS device, you’re up and running. Tap your favorite app and get right to work — or play. Swipe from the right side of the Lock screen to quickly pull up your camera. Scroll through thousands of photos in seconds. Everything about iOS is designed to look beautiful and work beautifully.

    So smooth and responsive you won’t even notice it. And that’s the point.

    Because iOS is engineered specifically for iPhone and iPad, everything looks and feels incredibly fluid. iOS uses a framework called Metal to maximize graphics performance. Whether you’re surfing the web, moving from app to app, or playing the most complex 3D video game, the graphics and responsiveness are amazingly smooth. No other mobile operating system is so effortless and natural.

    An OS with a remarkably high IQ.

    With sophisticated features like proactive(积极主动的) suggestions, predictive typing, and everybody’s favorite personal assistant, Siri, iOS 10 makes everything you do easier, quicker, and more fun.

    Nobody understands you quite like Siri.

    Siri learns how you talk, not the other way around. Thanks to Apple-developed machine-learning technology, you can simply speak naturally. So whether you say “Get a Lyft to SFO” or “I’d like a ride to SFO using Lyft,” Siri will read you loud and clear.

    Siri even works with your favorite apps.

    You can ask Siri to send someone a payment using Square Cash, book a reservation through OpenTable, and much more. And the number of apps incorporating Siri is growing every day.

    21. Instead of the complicated procedures of starting a camera on an iPhone, you can easily ________.

    A. start the camera by tapping the right side of the screen

    B. start the camera from the Lock screen

    C. start the camera by tapping the app from the Lock screen

    D. start the camera by scrolling thousands of photos in seconds

    22. According to the passage, “Metal” is  ______.

    A. an app which helps you surf the web

    B. a framework which helps everything look more beautiful

    C. something that can promote the graphic performance

    D. an app helping play the most complex 3D video games

    23. Siri can distinguish between different syntaxes(文法) by _________.

    A. enabling you to learn how it talks             B. machine-learning technology

    C. apple-developed multi-tasking technology       D. speaking naturally

    题型:阅读理解  知识点:科普环保类阅读
  • 难度: 使用次数:10 入库时间:2017-10-06
    来源: 湖南省长沙市麓山国际实验学校2017-2018学年新高二暑假作业检测英语试题 Word版含答案.doc

    It is 7 am and the alarm is going off. You know you have to be out of bed to catch the bus. But the urge to bury yourself in the bed is ever so strong. Sounds familiar? Why is it that teens find it difficult to get themselves out of bed in time every morning or stay sharp and focused during the first couple of hours of school?

    During adolescence, the body goes through many changes and these include a shift in sleep patterns. Researchers from MIT have been tracking the body’s need for sleep in teenagers. They found that though adolescents need as much as 9.5 hours of sleep a day, they get to bed later and later with each passing year. In fact, the sleep cycle shifts later by as much as 12 to 18 minutes each year between the ages of 10 and 20! So by the time a 10­year­old who sleeps at 8 pm grows to be 17 or 18, his body naturally wants to stay up till 10:30 pm or 11 pm.

    According to researchers, this is because of a hormone called melatonin (褪黑激素) that is secreted (分泌) by the pineal gland — a tiny structure deep inside the brain. Melatonin regulates the body’s natural day­night rhythms. It causes a person to become sleepy by lowering his body’s core temperature. In teens, melatonin is secreted much later in the evening and continues to increase throughout the night. This makes it difficult for teens to fall asleep earlier as they did in their younger years. Likewise, the effect of melatonin continues until much later in the morning, making it hard for them to wake up early.

    A study found that at least one in four teens is tired and falls asleep in school at least once a week. During sleep, important body functions and brain activities happen. So how can teenagers get their sleep enough? The American Academy of Pediatrics (AAP) recommends that middle and high schools should start later — not before 8:30 am. This should give teens some more time to sleep at night.

    21. From Paragraph 2, we can learn that if you sleep late, the next day you should ________.

    A. stay sharp    B. skip breakfast   C. get up late    D. stay up late

    22. What does the underlined word “this” in Paragraph 3 refer to?

    A. The students want to stay up.                B. The shifts of the sleep cycle.

    C. The pineal gland secretes melatonin.          D. The adolescents sleep late.

    23. The teens go to sleep later than before because ________.

    A. melatonin is secreted much later            B. melatonin regulates the sleep time

    C. they sleep a lot in the daytime              D. they need to finish their homework

    24. According to AAP’s recommendation, middle and high schools should ________.

    A. let teens sleep in the day    B. let the students be active

    C. delay the start time    D. start later at 8 am

    题型:阅读理解  知识点:科普环保类阅读
  • 难度: 使用次数:15 入库时间:2017-10-06
    来源: 湖南省五市十校教研教改共同体2016-2017学年高二下学期期末考试英语试题 Word版含答案.doc

    It has been around for centuries, but up until very recently, traditional Chinese medicine (TCM) wasn’t fully accepted abroad. Proof of this can be found in The Treatment (《刮痧》), a 2001 film that tells the story of a Chinese man in the US who’s accused of abuse after he uses guasha, a form of TCM treatment, to cure his grandson’s disease.

    During the last 10 years or so, however, TCM has been getting increasingly popular all over the world. A report released by the State Council Information Office on Dec. 6 says this style of health care, which includes different forms like herbal medicine and exercise, has spread to 183 countries and regions.

    “We have set up 10 TCM centers outside China, and all of them are popular among locals,” Wang Guoqiang, head of the State Administration of Traditional Chinese Medicine, said at a news conference on Dec 6. “Governments of 86 countries and regions have signed agreements with the Chinese government on TCM corporation.”

    One of the reasons behind the growing popularity of TCM is the increase of scientific research into it. And after Tu Youyou-the Chinese scientist who discovered the anti-malaria (抗疟疾) drug qinghaosu (青蒿素)-won the Nobel Prize last year, TCM became even more famous internationally.

    However, all these achievements in TCM don’t mean that it’s problem-free. Over the years, TCM has faced challenges in being able to prove that it has certain effects.

    Some researchers have suggested TCM should be more exact and work together with Western medicine.

    “Bringing together with Western medicine and TCM, rather than being in competition, is where the potential for great effects is,” said Bernhard Schwartlander, the China representative of the World Health Organization.

    24. The film The Treatment is mentioned in the first paragraph is to         .

    A. introduce the film to readers

    B. show TCM is increasingly popular

    C. arouse readers’ interest in Western medicine

    D. prove that TCM is not fully accepted in western countries

    25. We can learn from the passage that         .

    A. TCM is not exact in curing diseases

    B. 10 TCM centers abroad are all set up by locals

    C. 86 countries have cooperated with China on TCM

    D. Tu Youyou’s success contributes to the popularity of TCM

    26. According to Bernhard Schwartlander, TCM should         .

    A. combine western medicine

    B. face no challenge at all

    C. give an exact description of its effects

    D. complete with western medicine

    27. Which of the following can be the best title of the passage?

    A. A report on TCM                                                      B. Opinions about TCM

    C. TCM & Western Medicine                                               D. Traditional healing spreads

    题型:阅读理解  知识点:科普环保类阅读
  • 难度: 使用次数:12 入库时间:2017-09-29
    来源: 黑龙江省大庆中学2016-2017学年高一下学期期末考试英语试题 Word版含答案.doc

    At 2:30 on December 5,1945, five US Navy training planes took off in clear weather from the base Lauderdale, Florida. The planes flew cast over the coast...and disappeared. The group was Flight 19, on a run between Florida and Bahamas. Tailor was the group leader. At about 3:40, Tailor reported that his compasses were not reading properly. The other planes followed their leaders aimlessly, first east, then west, then northeast over the ocean, as Tailor tried to make sure of the direction by radio. Then, suddenly Tailor was heard to give orders to dive...

    Quickly, two giant Martin seaplanes were sent up to search for Flight 19. Several hours later, the wind became strong and visibility (能见度) dropped. A return to base was ordered. But only one of the Martin seaplanes landed. Four days later, the Navy and Coast Guard combed a 100,000 square miles area with more than 100 planes and ships. No sign was ever shown of the missing planes.

    Today, people have noted the disappearance of many ships and planes in the southwest part of the North Atlantic and began to call this area the Bermuda Triangle(百慕大三角区).

    The points of the triangle are Bermuda, Puerto Rico and a spot in the Gulf of Mexico, west of Florida. It is a two-faced water world of tiny islands, bright beaches and beautiful waters. Yet thick fogs, powerful currents(激流) and sudden storms are hidden behind this smiling surface.

    12. Why did Flight 19 disappear?

    A. Because the wind became strong and visibility dropped.

    B. Because Tailor was given wrong orders to dive.

    C. Because Tailor couldn’t read his compasses correctly.

    D. Because something unknown made the compasses unable to work as usual.

    13. In what position did Flight 19 disappear?

    A. In the southwest part of the North Atlantic Ocean.

    B. In the northeast part of the North Atlantic Ocean.

    C. To the southwest part of Bermuda in the Atlantic Ocean.

    D. To the northeast part of Bermuda in the Atlantic Ocean.

    14. How many planes disappeared altogether that day?

    A. Five.                              B. Six.                                C. two.                               D. Only one.

    15. The underlined word “combed” in the passage mean“      ”.

    A .covered with                                                            B. flew over

    C. did up one’s hair with a comb                                         D. searched all over

    题型:阅读理解  知识点:科普环保类阅读
  • 难度: 使用次数:2 入库时间:2017-09-29
    来源: 黑龙江省大庆十中2016-2017学年高一下学期期末考试英语试卷 Word版含答案.doc

        Social worker Cathy Heying noticed a growing tendency among the homeless and unemployed people she served for nearly a decade at StStephen's Catholic Church in Minneapolis"At least twice a weeksomeone would mention car trouble as a reason for missing a job interview or not getting the kids to day care"says Cathy44"I thought if I could offer car repairsI could prevent these problems"So in December 2012with little more automotive experience than making small changes to improve her own motorcycleCathy signed up for a mechanics(机械学)programAfter two years of taking a full-time courseCathy obtained a part-time degree in auto technology from Dunwoody College of Technology
        Then she opened the Lift
    a nonprofit garage offering affordable car repair for needy people"I had no mechanicsno volunteersand only a few tools"says CathyShe operated from a partly closed area in a friend's garageBut she made it work
        One of Cathy's first customers
    Linda Grangerwas unemployed when her social worker referred her to the LiftHer 20-year-old pickup truck had a new heatertiming beltand brakes fixed by Cathy and a volunteer for 600totalwhich Lindai spaying off in 20 monthly installmentsThe same repairs would have cost at least $1800 at a typical garage
       "There's no way I could have afforded it otherwise
    "says Linda
       "It's been a hard journey from social worker to mechanic
    "says Cathy"But compared with other people's strugglesI have nothing to complain about"

    29. What motivates Cathy Heying to open the Lift ______

    A. The car trouble of the homeless and unemployed

    B. Ten years of hard work with poor people like her

    C. The growing tendency of more job interviews

    D. The joy of getting the kids to day care in her car

    30. The underlined"it"in Para.3 most probably refers to ______

    A. a partly closed area

    B. a friend's garage

    C. the Lift

    D. free car repair

    31. Linda's experience was mentioned in the passage to show that ______

    A. Cathy helped her fix the truck

    B. the Lift did manage to help the needy

    C. her truck did need a thorough repair

    D. a typical garage cost 3 times as much

    32. Which of the following could be the best title for the passage ______

    A. Free Car Repairs for All

    B. Home to the Unemployed

    C. Come for the Mechanics Program

    D. She's Lifting Cars and Spirits

    题型:阅读理解  知识点:科普环保类阅读
  • 难度: 使用次数:12 入库时间:2017-09-29
    来源: 黑龙江省大庆十中2016-2017学年高一下学期期末考试英语试卷 Word版含答案.doc

       The bed should be reserved as a place for sleepbut people tend to read an iPad a lot in bed before they go to sleep
       Charles Czeisler
    a professor at Harvard Medical Schooland his colleagues got a small group of people for an experimentFor five days in a rowthe people read either a paper book or an iPad for four hours before sleepTheir sleep patterns were monitored all nightBefore and after each trial periodthe people took hourly blood tests to paint a day-long picture of just how much melatonin(褪黑激素)was in their blood at any given time
       When subjects read on the iPad as compared to the paper books
    they reported feeling less sleepy at night and less active the following morningPeople also took longer to fall asleep on the iPad nightsand the blood tests showed that their melatonin secretion(分泌)was delayed by an hour and a half
       The researchers conclude in today's journal article that gives the rise of e-readers and the increasingly widespread use of e-things among children and adolescents
    more research into the"long-term consequences of these devices on health and safety is urgently needed"Czeisler and colleagues go onin the research paperto note"Reading an iPad in bed may increase cancer risk"
    However
    software has been developed that can reduce some of the blue light from the screens of phones and computers according to time of dayand there are also glasses that are made to filter(过滤)short wavelengthsWhile they seem like a logical solution for the nighttime tech usersit needs more research

    21. In Charles Czeisler's experimentall the subjects were asked to ______

    A. sit in a row and receive the strict tests

    B. have their sleep patterns observed all night

    C. read a paper book and an iPad at the same time

    D. have their blood tested per hour during the trial

    22. The third paragraph tells us the iPad readers were likely to ______
    A
    feel less sleepy and tired in the day Bfall asleep more easily after reading
    C
    have a lot more melatonin secretion Dbecome less energetic the next morning

    23. The special software recently developed can ______
    A
    remove the blue light from your devices completely
    B
    help prevent eyes being harmed by short wavelength
    C
    weaken the harm done by doing nighttime e-reading
    D
    be used in all the e-things widely and safely

    24. What's this passage mainly about ______
    A
    No e-reading in bed before sleep BNew software for night e-readers
    C
    Wrong behaviors before bedtime DNo games on iPad in bed

    题型:阅读理解  知识点:科普环保类阅读
  • 难度: 使用次数:3 入库时间:2017-09-29
    来源: 河南省信阳高级中学2016-2017学年高一下学期期末考试英语试题 Word版含答案.doc

    Artificial intelligence can identify skin cancer in photographs with the same accuracy as trained doctors, say scientists. The Stanford University team said the findings were “incredibly exciting” and would now be tested in clinics. Eventually, they believe using AI could revolutionize healthcare by turning anyone's smart-phone into a cancer scanner.

    The AI was repurposed (改变用途)from software developed by Google that had learned to spot the difference between images of cats and dogs. It was shown 129,450 photographs and told what type of skin condition it was looking at in each one.

    It then learned to spot the hallmarks of the most common type of skin cancer: carcinoma(恶性上皮肿瘤), and the most deadly: melanoma(黑色素瘤). Only one in 20 skin cancers are melanoma, yet the tumor(肿瘤) accounts for three-quarters of skin cancer deaths.

    The experiment, detailed in the journal Nature, then tested the AI against 21 trained skin cancer doctors. One of the researchers, Dr Andre Esteva, told the BBC News website: “We find excitedly, in general, that we are on par with excellent skin cancer doctors.”

    However, the computer software cannot make a full diagnosis (诊断), as this is normally confirmed with a tissue biopsy(活检). Dr Esteva said the system now needed to be tested alongside doctors in the clinic. “The application of AI to health care is, we believe, an incredibly exciting area of research that can be leveraged to achieve a great deal of societal good,” he said. “One particular route that we find exciting is the use of this algorithm on a mobile device, but to achieve this we would have to build an app and test its accuracy directly from a mobile device.” Incredible advances in machine-learning have already led to AI beating one of humanity's best Go players. And a team of doctors in London have trained AI to predict when the heart will fail.

    32. From the passage we can infer that _________      .

    A. Artificial Intelligence must replace human one day

    B. We can use Artificial Intelligence to cure skin cancers

    C. We can use smart-phone to scan our skin at present

    D. The research will be of great help to us and our health care

    33. Which one will he agree with according to Dr Esteva?

    A. Artificial Intelligence has beaten all of humanity’s best Go players.

    B. Artificial Intelligence could support assessments by GPS.

    C. We still need professional doctors with the help of the system.

    D. There are too many disadvantages for Artificial Intelligence.

    34. The underlined words “on par with” in Para 4 likely mean       .

    A. sensitive to        B. equaled by           C. allergic to          D. opposite to

    35. What’s probably the best title of this passage?

    A. Cancer Doctors Are Out

    B. An APP Scanning Skin Cancers

    C. Artificial Intelligence—change our future

    D. Artificial Intelligence—as good as cancer doctors

    题型:阅读理解  知识点:科普环保类阅读
  • 难度: 使用次数:2 入库时间:2017-09-29
    来源: 河南省开封市祥符高级中学2016-2017学年高二下学期期末考试英语试题 Word版含答案.doc

    Around the world, eggs have been a breakfast staple(重要部分)for all good reasons. After all, an egg is a storehouse of vital nutrients, making it an essential part of a healthy diet. And for those of you who are afraid of having this power food because you're worried that it will add to your weight, remember, one egg contains about 80 calories and about five grams of fat. Hence, smart consumption is a far healthier option.
        Eggs are a well-known rich source of protein — an important building block of bones, muscles, skin, and blood. The body uses protein to build and repair tissues as well as making other body chemicals. Unfortunately, unlike fat and carbohydrates(
    碳水化合物), the body does not store protein, and therefore has no reservoir to draw on when it needs a new supply. Thus eggs are the perfect sources and a smart food choice for those who reduce their intake of carbohydrates in a bit to lose extra weight.
        Another important nutrient you'll find abundantly in egg white is riboflavin or Vitamin B2. And for all of you wondering what's the benefit of this nutrient, Riboflavin is a water-soluble(
    水溶性) vitamin which is involved in vital processes in the body and is necessary for normal cell function, growth, and energy production.
        The yolk, which many of us avoid out of fear, is actually a very healthy food, if consumed in moderation(
    适度). Mainly fat, the yolk contains 1.33 gm of cholesterol(胆固醇) per 100 gms and is a rich source of vitamin A, B vitamins, calcium, phosphorous() and iron. Incidentally, the iron found in the yolk is easily digested in the body. According to nutrition experts, one can eat one whole egg every day without harming one's cholesterol and other blood-fat levels. But for those who crave for more eggs, you can reduce fat by having one whole egg and the whites of the rest of the eggs.

     
    8. Eggs are regarded as important in breakfast because__________.
     A. it is a custom to have eggs in the breakfast.

      B. they are sold at a low price.    

    C. they are high in calories and low in fat.

    D. they can provide people with many nutrients.
    9. When our body is short of protein, we may____________.
     A. feel tired and sleepy.
     B. feel discomfort in our legs.
     C. get tired of eating eggs.
     D. be eager for other chemicals.
    10. Which of the following is true about protein?         .
      A. It can’t be stored in the body.
      B. Fat can be changed into protein.
      C. It is a kind of carbohydrate.

    D. Our body can only get protein from eggs.

    11. We can infer from the last paragraph that____________.
       A. the author suggests we only eat the whites of eggs.

    B. eating enough yolk can reduce cholesterol in the body.
       C. iron and phosphorous in the yolk are difficult to digest.
       D. high blood-fat level can do harm to our health

    题型:阅读理解  知识点:科普环保类阅读
  • 难度: 使用次数:10 入库时间:2017-09-26
    来源: 河北省承德一中2016-2017学年高一下学期第一次月考英语试卷 Word版含答案.doc

    The crisis(危机) at Japan’s Fukushima Dai-Ichi nuclear() energy center caused by the terrible earthquake has raised questions about the future of the nuclear energy industry. Arjun Makhijani is president of the Institute for Energy and Environmental Research in the United States. He says the disaster(灾难)in Japan is historic.

           This week, the chairman of America’s nuclear agency said there is little chance that harmful radiation(辐射) from Japan could reach the United States. Gregory also said America has a strong program in place to deal with earthquake threats. No new nuclear power centers have been built in the United States since nineteen seventy-nine. That was when America’s worst nuclear accident happened at the Three Mile Island center in Pennsylvania. The accident began to turn public opinion against nuclear energy. At present, about twenty percent of electricity in the United States comes from nuclear energy.

           German Chancellor Angela Merkel said Germany would close seven nuclear power centers while energy policy is reconsidered. The European Union is planning to test all centers in its twenty-seven member nations.

           Developing nations are less willing to slow down the development of nuclear (nuclear expansion). China said it will continue with plans to build about twenty-five new nuclear reactors(反应堆). And India, under a cooperation agreement with the United States, plans to spend billions on new centers in the coming years.

           Nuclear reactors supply fourteen percent of global electricity. Nuclear energy is a clean resource, producing no carbon gases. But radioactive waste is a serious problem to be solved (unresolved issue). So is the presence of nuclear power centers in earthquake areas like the one near Bushehr, Iran.

    25We can learn from the text that America________

           Aexperienced a terrible nuclear accident 32 years ago

           Bhas a strong program to deal with radiation danger

           Cdepends heavily on nuclear energy to produce electricity

           Dwill check all the reactors before cooperating with India

    26According to the text, which country will be most likely to have a similar disaster?

          AGerman      BIran              CIndia          DChina

    27How does the author seem to feel about the future of nuclear energy?

           ASatisfied       BPleased          CWorried       DSurprised

    28The best title of the text is _________

           AVarious Opinions on Japan's Nuclear Disaster   

           BJapan's Disaster is Likely to Run out of Control  

           CAmerica Feels Great Concern for Japan's Nuclear Crisis

      DJapan's Disaster Throws Doubt on Nuclear Energy Industry

    题型:阅读理解  知识点:科普环保类阅读
  • 难度: 使用次数:7 入库时间:2017-09-26
    来源: 广东省阳江市2016-2017学年高一下学期期末检测英语试题 Word版含答案.doc

    Patients and doctors alike have long believed in the healing(治疗)power of humor.It is claimed that humor not only affects patients' moods,but can actually help them recover faster.

    Several studies seem to support this.Patients in better spirits are known to have a larger number of immune cells(免疫细胞).Some have even claimed to have healed themselves of serious illnesses by reading comics and watching comedies.

    Despite all this,many researchers are not convinced.They point out the fact that many sufferings have been known to disappear naturally,with or without a daily dose of laughter.They also say that while optimism in general does seem to be related to better health,it is hard to tell which comes first.

    Humor in times of stress,however,clearly makes us feel better.On one level,it takes our minds off our troubles and relaxes us.On another,it releases powerful endorphins,a chemical produced by your body that reduces pain.

    There are cases where the appreciation of a good joke is indeed directly related to a person's health.It can show, for example,whether a person has suffered damage to one particular area of the brain: the right frontal lobe(额叶).

    Scientists confirmed this by having people read jokes and asking them to choose the funniest endings from a list. Subjects with normal brains usually chose endings that were based on a relatively complex synthesis(综合)of ideas. Subjects with specifically located brain damage,however,responded only to slapstick(闹剧)endings,which did not depend on a particular context.When pressed,the brain-damaged subjects saw the logic in the correct endings.They simply did not find them funny.

    Of course,humor is largely an individual matter.Next time your friend does not get one of your jokes,there is no need to accuse him of being a lame-brain(脑残).However,you might suggest that he lighten up-for the health of it.

    12.What does the underlined "this" in the second paragraph refer to?

    A.The fact that happy patients' have more immune cells.

    B.The fact that patients and doctors believe in humorous patients.

    C.The fact that humor helps improve patients' moods and recovery.

    D.The fact that comedies and comics help cure patients of their diseases.

    13.How does humor help reduce our stress?

    A.By providing us with optimism and courage.

    B.By helping reduce the number of immune cells.

    C.By making us laugh out loud to forget our troubles.

    D.By distracting(分散)our attention and releasing pain-reducing chemicals.

    14.What can the experiment in the sixth paragraph confirm?

    A.The relationship between good jokes and people's health.           B.The connection between beginnings and endings.

    C.The relationship between complex ideas and brains.                    D.The connection between jokes and brain damage.

    15.Which would be the best title for the passage?

    A.Humor contributes to good health.                                      B.Which comes first,humor or health?

    C.People need humor in times of stress.                                       D.Humor can cure different illnesses.

    题型:阅读理解  知识点:科普环保类阅读
  • 难度: 使用次数:6 入库时间:2017-09-20
    来源: 高一下期末英语试题.doc

    Scientists in Argentina have created the world’s first cow with two human genes that will enable it to produce human-like milk.

    Genetic engineering was used to introduce the "mothers’milk" genes into the animal before birth, according to the National Institute of Agribusiness Technology in Buenos Aires.
       As an adult, the cloned cow "will produce milk that is similar to that of humans", which will prove "a development of great importance for the nutrition of infants(
    婴儿)", said the institute. "The cloned cow, named Rosita ISA, is the first in the world with two human genes that contain the proteins present in human milk," said the statement.
       In April, scientists in China published details of research showing that they had created dairy cows which produced milk containing proteins found in human breast milk. But the Argentine team said the Chinese only introduced one human gene, while their research involved two, meaning the milk will more closely resemble that of humans.
       “Our goal was to raise the nutrition value of cows’milk by adding two human genes, which do good to the immune system of infants,” said Adrian Mutto, from the National University of San Martin which worked with the institute.

     Cristina Kirchner, President of Argentina, said that the scientific institute made all Argentines proud. She also said that she had rejected the "honor" of having the cow named after her. "They came to tell me that the name is Cristina, but what woman would like to have a cow named after her? It appeared to me to be more proper to call it Rosita.”

    21. What is the passage mainly about?

    A.      The importance of genetic engineering.

    B.      Ways to improve mothers’ milk.

    C.      A cloned cow to produce human-like milk.

    D.     Advanced agricultural technology in Argentina.

    22. Which of the following can best replace “more closely resemble” in Paragraph 4?

    A.      have more varieties than

    B.      be more similar to

    C.      have more nutrition than

    D.     be more different from

    23. What can be inferred from Cristina Kirchner’s statements?

    A.      She was quite satisfied with the research done by the institute.

    B.      She considered it an honor to name the special cow.

    C.      She felt it improper to be named after the cow.

    D.     She refused to give a name to the cow out of self-respect.

    题型:阅读理解  知识点:科普环保类阅读
  • 难度: 使用次数:5 入库时间:2017-09-20
    来源: 甘肃省兰州市第一中学2016-2017学年高二下学期期末考试英语试题 Word版含答案.doc

        Being sociable looks like a good way to add years to your life. Relationships with family, friends, neighbors, even pets, will all help, but the biggest longevity (长寿) seems to come from marriage. The effect was first noticed in 1858 by William Farr, who wrote that widows and widowers (鳏夫) were at a much higher risk of dying than the married people. Studies since then suggest that marriage could add as much as seven years to a mans life and two to a womans. The effect can be seen in all causes of death, whether illness, accident or self-harm.

       Even if the chances are all against you, marriage can more than compensate you. Linda Waite of the University of Chicago has found that a married older man with heart disease can expect to live nearly four years longer than an unmarried man with a healthy heart. Similarly, a married man who smokes more than a pack a day is likely to live as long as a divorced man who doesn’t smoke. There’s a flip side, however, as partners are more likely to become ill or die in the couple of years following their husband or wife’s death, and caring for your husband or wife with mental disorder can leave you with some of the same severe problems. Even so, the chances favor marriage. In a 30-year study of more than 10,000 people, Nicholas Christakis of Harvard Medical School describes how all kinds of social networks have similar effects.

       So how does it work? The effects are complicated, affected by socio-economic factors, health-service provision, emotional support and other more physiological mechanisms(生理机制). For example, social contact can promote development of the brain and immune system, leading to better health and less chance of depression later in life. People in supportive relationships may handle stress better. Then there are the psychological benefits of a supportive partner.

       A life partner, children and good friends are all recommended if you aim to live to 100. The overall social network is still being mapped out, but Christakis says: "People are inter-connected, so their health is inter-connected."

    8.  It can be inferred from the context that the "flip side" (Para. 2) refers to _________.

    A. the disadvantages of being married

      B. the emotional problems arising from marriage

    C. the responsibility of taking care of one's family

    D. the consequence of a broken marriage

    9.  What does the author say about social networks?

      A. They have effects similar to those of a marriage.

      B. They help develop people's community spirit.

      C. They provide timely support for those in need.

      D. They help relieve people of their life's burdens.

    10.  What can be inferred from the last paragraph?

      A. It's important that we develop a social network when young.

      B. To stay healthy, one should have a proper social network.

      C. Getting a divorce means risking a reduced life span.

      D. We should share our social networks with each other.

    题型:阅读理解  知识点:科普环保类阅读
  • 难度: 使用次数:8 入库时间:2017-09-18
    来源: 安徽省蚌埠市第二中学2017-2018学年高二8月月考英语试题 Word版含答案.doc

    Try this: For an entire day, forget about the clock. Eat when you’re hungry and sleep when you’re tired. What do you think will happen?

    You may be surprised to find that your day is much like most other days. You’ll probably get hungry when you normally eat and tired when you normally sleep. Even though you don’t know what time it is, your body does.

    These patterns of daily life are called circadian rhythms(生理节奏), and they are more than just habits. Inside our bodies are several clocklike systems that follow a roughly 24-hour cycle. Throughout the day and night, our inner clocks direct changes in temperature, body chemicals, hunger, sleepiness and more.

    Everyone’s rhythms are different, which is why you might like to stay up late while your sister always wants to go to bed early. But on the whole, everyone is programmed to fell tired at night and energetic during the day.

    Learning about our body clocks may help scientists understand why problems arise when we act out of step with our circadian rhythms. For example, traveling across time zones can make people wake up in the middle of the night. Regularly staying up late can make kids do worse in tests.

    “There is a growing sense that when we eat and when we sleep are important parts of how healthy we are,” says Steven Shea, director of the Sleep Disorders Program at Brigham and Women’s Hospital in Boston.

    One way to learn about how our body clocks tick is to mess them up and see what happens. That’s what neurologist(神经病学家)Frank Scheer and his workmates did in a recent study.

    Staying up night after night, their studies suggest, could make kids extra hungry and more likely to gain weight. And regularly sleeping too little, Scheer says, may be one cause of the recent increase in childhood obesity. 

    5. What will happen if you forget about the clock according to the passage?

    A. You will feel upset.              

    B. You will behave normally.

    C. Your body will not know what time it is.                  

    D. You will probably get hungry more easily.

    6. Mike feels energetic at 12 midnight while Tom feels sleepy. What advice would be

    given by the writer?

    A. Both should see a doctor..                B. Tom should see a doctor. 

    C. Both should take it easy.                  D. Mike should have a watch.

    7. How do Frank Scheer and his workmates study body clocks?

    A. By seeing what happens when they are messed up. 

    B. By asking questions and collecting answers.

    C. By studying people traveling across time zones.     

    D. By programming people with man-made clocks.

    8. What will the writer most probably talk about next?

    A. Other examples of what people will do when their body clocks go wrong.             

    B. Medicines that can keep people from putting on weight.

    C. Why it is important to have a normal body clock.         

    D. What circadian rhythms are.

    题型:阅读理解  知识点:科普环保类阅读
  • 难度: 使用次数:5 入库时间:2017-09-18
    来源: 重庆市万州第二高级中学2016-2017学年高一上学期期中考试英语试题 Word版含解析.doc

    According to researchers, money can buy happiness, but only if you spend it on someone else. Spending as little as $5 a day on someone else could significantly bring you happiness, the team at the University of British Columbia and Harvard Business School found.

    Their experiments on more than 630 Americans showed they were measurably (适度地) happier when they spent money on others--even if they thought spending the money on themselves would make them happier.

    “We wanted to test our theory that how people spend their money is at least as important as how much money they earn,” said Elizabeth Dunn, a psychologist at the University of British Columbia.

    They asked their 600 volunteers first to rate their general happiness, report their annual income and detail their monthly spending including bills, gifts for themselves, gifts for others and donations to charity.

    “Regardless of how much income each person made, those who spent money on others reported greater happiness, while those who spent more on themselves did not,” Dunn said in a statement.

    Dunn’s team also surveyed 16 employees at a company in Boston before and after they received an annual profit-sharing bonus of between $3,000 and $8,000.

    “Employees who devoted more of their bonus to pro-social (有益社会的) spending experienced greater happiness after receiving the bonus, and the manner in which they spent that bonus was a more important predictor of their happiness than the size of the bonus itself,” they wrote in their report, published in the journal Science.

    They gave their volunteers $5 or $20 and half got clear instructions on how to spend it. Those who spent the money on someone or something else reported feeling happier about it.

    “These findings suggest that very minor alterations in spending allocations (分配) --as little as $5--may be enough to produce real gains in happiness on a given day,” Dunn said.

    28.According to the passage, ________.

    A. the more money you spend on others, the happier you are

    B. spending money on others can bring you happiness

    C. Elizabeth Dunn is a psychologist from Harvest Business School

    D. six hundred volunteers took part in the experiment

    29.The 16 employees mentioned in the passage _________.

    A. were given clear instructions on how to spend the bonus

    B. had more happiness than the size of the bonus itself

    C. experienced greater happiness after receiving their bonus

    D. felt happier after they contributed much of the bonus to charities

    30.Dunn’s statement suggested that ________.

    A. those who spent money on others felt happier no matter how much they earned

    B. those who spent more money on themselves felt happier

    C. people thought spending money could make themselves happier

    D. the money spent was as important as the money earned

    31.The best title of this passage is ________.

    A. Experiment on Money Spending

    B. Devoting Your Money to Charities

    C. Spending Money on Others Makes One Happier

    D. Bonus and Pro-social Spending

    题型:阅读理解  知识点:科普环保类阅读
  • 难度: 使用次数:6 入库时间:2017-09-18
    来源: 重庆市第一中学2015-2016学年高二下学期期中考试英语试题 Word版含解析.doc

    Have you ever considered why you begin yawning too when you see someone yawn? Or how hard it is to be among people laughing and not laugh yourself? Well, apparently it's because we have mirror neurons (神经元in our brains.

    Put simply, the existence of mirror neurons suggests that every time we see someone else do something, our brains imitate it whether or not we actually perform the same action. This explains a great deal about how, we learn to smile, talk, walk, dance or play sports. But the idea goes further: mirror neurons not only appear to explain physical actions, they also tell us that there is a biological basis for the way we understand other people.

    Mirror neurons can undoubtedly be found all over our brains, but especially in the areas which relate to our ability to use languages, and to understand how other people feel. Researchers have found that mirror neurons relate strongly to language. A group of researchers discovered that if they gave people sentences to listen to ( for example: “The hand took hold of the ball” ) , the same mirror neurons were triggered as when the action was actually performed (in this example, actually taking hold of a ball).

    Any problems with mirror neurons may well result in problems with behavior. Much research suggests that people with social and behavioral problems have mirror neurons which are not fully functioning. However, it is not yet known exactly how these discoveries might help find treatments for social disorders.

    Research into mirror neurons seems to provide us with even more information regarding how humans behave and interact. Indeed, it may turn out to be the equivalent (相等物for neuroscience of what Einstein's theory of

    relativity was for physics. And the next time you feel the urge to cough in the cinema when someone else does — well, perhaps you'll understand why.

    25. Mirror neurons can explain _____

    A. why we smile when we see someone else smile

    B. why we yawn when we see someone else stay up late

    C. why we cry when we are hurt

    D. why we cough when we suffer from a cold

    26. The underlined word "triggered" in the third paragraph probably means “_____’’.

    A. built up    B. broken up    C. set off       D. cut off

    27. We can learn from the passage that mirror neurons _____.

    A. determine our knowledge and language abilities

    B. control human physical actions and feelings

    C. result in bad behavior and social disorders

    D. relate to human behavior and interaction

    28. What is the passage mainly about?

    A. Ways to find mirror neurons.          B. Problems of mirror neurons.

    C. Functions of mirror neurons.     D. Existence of mirror neurons.

    题型:阅读理解  知识点:科普环保类阅读
  • 难度: 使用次数:18 入库时间:2017-09-14
    来源: 江苏省兴化一中2017届高三下学期期中考试英语试卷 Word版含答案.doc

          Smog in Europe and North America could be more than 25 times more deadly than the average air pollution found in Chinese cities, a new study suggests. In the largest ever study of its kind in the developing world, researchers tested the effects of air pollution on the health of people in 272 cities in China.

          They found average annual exposure to fine particles, known as PM2.5, in those cities was more than five times higher than the level recommended by the World Health Organization (WHO), according to a paper in the American Journal of Respiratory and Critical Care Medicine.

          However they also discovered that it was much less likely to increase the death rate than PM2.5 in Europe and North America.

          The researchers, led by Dr Maigeng Zhou, of the Chinese Centre for Disease Control and Prevention, suggested this was because China is affected by large amounts of natural dust blown by the wind from arid areas, while most pollution in the West comes from industry.

          They found that for every increase of 10 micrograms of air pollution in a cubic meter of air, the mortality rate increased by 0.22 percent, discounting deaths from accidents.

           Professor Frank Kelly, an expert in environmental health at King’s College London, who was not involved in the study but has studied air pollution in China, told The Independent: “Those relative risks are considerably less than those seen in Europe and the US. For mortality(死亡率)in Europe we are working on a six percent increase per 10 micrograms.” That suggests air pollution in Europe is about 27 times more toxic than average air pollution in China.

          However, Professor Kelly said cities like Beijing, Shanghai and Hong Kong were likely to suffer from Western-style air pollution. "The natural dust component there is not of the magnitude that it would dwarf the coal, biomass and fossil fuel signals,” he said, “That may be true in certain cities whose pollution is not dominated by local power generation or major traffic congestion.”

          Natural dust particles can cause physical damage to the lungs and trigger an asthma attack. Particles of carbon produced when fossil fuels are burned can lead to similar problems but they are also coated with toxic heavy metals, chemicals and volatile organic compounds. These are able to pass from the lungs into the blood stream where it is thought they cause further damage to the body.

          Areeba Hamid, an air pollution campaigner with environmental group Greenpeace, said: “Poisonous air causes damage to people’s health wherever in the world they live. We now know fumes from diesel(柴油机) vehicles are a lot more poisonous than car companies claimed and this is a big cause of air pollution in Europe and North America. These companies have a lot to answer for, but so far they’ve managed to avoid any real accountability.”

          The study of cities in China found the average annual expose to PM2.5 was 56 micrograms per cubic meter, compared to the WHO guideline limit for safe air quality of 10 micrograms.

          People who were older than 75, had less education or who lived in hotter places were more likely to die. It is thought people in warmer cities were more likely to spend time outside or leave their windows open, thereby breathing more polluted air, the researchers said. They also speculated that less well educated people might have poorer access to health care or experience poorer environmental health conditions.

    62. Why PM2.5 in China is less deadly than that in Europe and North America?

          A. China is free from any pollution about PM2.5.

          B. Pollutants affecting China mainly come from arid areas.

          C. Fewer people died from PM 2.5 in China than those in Europe and North America.

          D. Europe and North America are polluted by natural dust.

    63. What does the underlined part in Para 7 refer to?

          A. The average mortality rate.         B. The higher mortality rate.  

           C. The lower mortality rate.           D. The normal mortality rate.

    64. What’s the real cause of air pollution in Europe and North America according to Areeba Hamid?

          A. Fumes from diesel vehicles are much more poisonous.

          B. The environmental agencies can’t take on responsibilities.

           C. The technology doesn’t meet the standards.

          D. Car companies can’t evaluate the results.

    65. The author’s purpose of writing the passage is to ________.

          A. appeal to people to lay an emphasis on environmental protection.

          B. illustrate smog in Europe and North America is quite serious.

          C. demonstrate China is safest place in the world to live in.

          D. provide some good ways to address the smog.

    题型:阅读理解  知识点:科普环保类阅读
  • 难度: 使用次数:2 入库时间:2017-09-14
    来源: 江苏省江安高级中学2016-2017学年高二下学期英语综合测试 Word版含答案.doc

    Robotic surgery is one thing, but sending a robot inside the body to carry out an operation quite another, which has long been a goal of some researchers to produce tiny robotic devices being capable of travelling through the body to deliver drugs or to make repairs without the need for a single cut, the possibility of which has just got a bit closer.

    However, unlike the plot of one filmwhich featured a microscopic crew and submarine traveling through a scientist's bloodstreamthis device could not be inserted into blood vessels() because it is too big. While other types of miniature swallowable robots have been developed in the past, their role has mostly been limited to capturing images inside the body. In a presentation this week to the International Conference, Daniela Rus and Shuhei Miyashita of the Massachusetts Institute of Technology described a robot they have developed that can be swallowed and used to collect dangerous objects accidentally taken in.

    To test their latest version, Dr Rus and Dr Miyashita designed a robot as a battery hunter, which might seem to be an odd task, but more than 3500 people in America alone, most of them children, swallow the tiny button cells used in small electronic devices by accident every year. To start with, the researchers created an artificial esophagus(食道) and stomach made out of silicone(硅胶). It was closely modeled on that found in a pig and filled with medical liquid; the robot itself is made from several layers of different materials, including pig intestine(), and contains a little magnet. This is folded up and encased in a 10mm×27mm capsule of ice. Once this reaches the stomach the ice melts and the robot unfolds which is moved and guided with the use of a magnetic field outside the body. In their tests, the robot was able to touch a button battery and draw it with its own magnet, and during dragging it along, the robot could then be directed towards the intestines where it would eventually be gotten rid of through the anus(肛门). After it, the researchers sent in another robot loaded with medication to deliver it to the site of the battery burn to speed up healing.

    The artificial stomach being transparent on one side, the researchers were able to see the batteries and visually control the robots. If not, that will require help with the help from imaging system, which will be a bit more of a challenge, but Dr Rus and Dr Miyashita are determined to succeed.

    42. According to the passage, the robot operation will probably be able to ________

    A. travel through a scientist's bloodstream   B. photograph the body to convey to the doctor

    C. enter the body to deliver drugs or make repairs   D. operate on a person outside the body completely

    43. We learn from Paragraph 3 that ________

    A. the researchers did the experiment on a chosen animal

    B. the robot took necessary drugs besides a little magnet

    C. digesting the swallowed batteries is difficult for children

    D. the actual size of the robot may be larger than the capsule of ice

    44. What may the experiment mean to the medical world?

    A. The surgeries will cost patients much money.   B. Patients will suffer less for some surgeries.

    C. Fewer children will swallow the button cells.    D. A robot will be invented travelling blood vessels.

    45. Which can be the most suitable title for the passage?

    A. An Experiment on Robot  B. Tiny Robot, Significant Role

    C. The Fantastic Robotic Voyage  D. The Exploration of Robot Technology

    题型:阅读理解  知识点:科普环保类阅读
  • 难度: 使用次数:2 入库时间:2017-09-14
    来源: 江苏省江安高级中学2016-2017学年高二下学期英语综合测试 Word版含答案.doc

    A new study revealed that the formation of the Earth, Sun and Moon that cause changes in Earth's tides can also trigger a special kind of Earthquake along the California's San Andreas Fault(断层)

    The study, published in the journal Proceedings of the National Academy of Scienceis based on previous researcher suggesting that the gravitational tug of sun and moon is not only affecting the sea levels of Earth, but can also stretch and compress that Earth's crust, producing tremors and quakes. Furthermore, the new study showed that small tremors deep underground were more likely to occur during certain periods of the tidal cycle.

    For the study, the researchers looked at about 81000 low­frequency earthquakes from 2008 to 2015 along the Parkfield section of the San Andreas Fault and compared it to the two­week tidal cycle known as the “fortnightly tide”. Low­frequency earthquakes are named due to the rumbling sound they make and not by the rate of its occurrence. These kinds of earthquake only occur about 15 to 30 kilometers below ground and are no larger than magnitude 1 in the Richter scale.

    The researchers discovered that low­frequency earthquakes tend to occur during the waxing period of the tidal cycle, when the tides are getting little by little. It is already known that the strongest Earth tides occur when the sun and moon are in a straight line, while the tide is at its weakest state when the sun and moon are 90 degrees apart.

    According to the researchers, low­frequency earthquakes show that some part of the San Andreas Fault is creeping, or slowly moving, almost all the time. With the help of the tidal forces, low­frequency earthquakes could provide more information about the deeper part of the fault.

    They tell us that the fault continues down below where the regular or typical earthquakes stop on the San Andreas, about 10 or 12 km (about 6 to 7 miles),” said David Shelly, a seismologist at USGS and helped write the study, in a statement. And they tell us a lot of things about that deep part of the fault that we had no idea existed at all before.”

    It's almost like having a lot of little creep meters embedded in the fault,” Shelly said. We can use these low­frequency earthquakes as measurements of, at least in a relative sense, how much slip is happening at each little spot on the deep part of the fault where we see these events. When we don't see them, we don't know what's happening; we don't know whether it is slipping silently or not slipping at all.

    The information is incredibly useful, he added. Whenever the deep part of the fault slips, the stress gets transferred to the shallow part of the fault.

    So if all of a sudden, we saw that the deep part of the fault was slipping a huge amount, it might be an indication that there was an increased chance of having an earthquake come at the shallower part of the fault” he said.

    38. What causes tremors and quakes according to the passage?

    A. The formation of the Earth, Sun and Moon.

    B. The change of the sea levels of Earth.

    C. The effect of the gravitational tug of sun and moon on Earth's crust.

    D. The movement of creeping in the deep part of the San Andres Fault.

    39. The underlined word they in Paragraph 6 refers to ________

    A. the researchers  B. the tidal forces

    C. the low­frequency earthquakes  D. the typical earthquakes

    40. Low­frequency earthquakes occur when ________

    A. the tides are getting bigger gradually  B. the sun and moon are in a straight line

    C. the sun and moon are 90 degrees apart  D. the San Andreas Fault moves slowly

    41. According to Shelly, the most important function of the study is to ________

    A. find out where the typical earthquakes occur

    B. indicate when the regular earthquakes occur

    C. uncover how low­frequency earthquakes occur

    D. offer more information about the deeper part of the fault

    题型:阅读理解  知识点:科普环保类阅读
  • 难度: 使用次数:7 入库时间:2017-09-12
    来源: 西藏自治区拉萨中学2016-2017学年高二上学期第一次月考英语试题 Word版含解析.doc

    “BEST PRODUCT WE'VE EVER SEEN”THIS REALLY WORKSON SALE NOW

    Need to lower your cholesterol(胆固醇)?We strongly recommend Cholesterol blockTM. This really works, and now is the best time to buybecause of a special offer for the first 250 customers only for a limited time.

    * Takes cholesterol out of foodno matter what you eat.

    * Clinically demonstrated effective in university and hospital testing

    * Lowers cholesterol absorption up to 42% or more

    * “NO SIDE EFFECTS unlike Liptor®, Zocor®Crests®other commonly prescribed(处方的) medicationssafe and effective.

    * “Outsells all other brands on Internet every month.

    LIMITED TIME ONLYTry Cholesterol Watchers free with purchase.     108

    29If you happen to be the 200th customer to buy Cholesterolblock, you will           .

    A. be able to buy it at a low price                B. be the luckiest one online

    C. try it free of charge                         D. change your diet

    30Liptor®Zocor®Crestor® are             

    A. diseases     B. side effects    C. medicines   D. cholesterol

    31Where can you most probably read this passage?

    A. In a travel guide book             B. On a university bulletin board(布告牌).

    C. In a health magazine.               D. In a doctor's prescription.

    题型:阅读理解  知识点:科普环保类阅读