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1.

The Omicron Covid variant has been found to multiply about 70 times quicker than the original and Delta versions of coronavirus in tissue samples taken from the bronchus( 支气管 ), the main tubes from the windpipe to the lungs, in laboratory experiments that could help explain its rapid transmission.

The study, by a team from the University of Hong Kong, also found that the new variant grew 10 times slower in lung tissue, which the authors said could be an indicator of lower disease severity.

Michael Chan, who led the work, said the result needed to be interpreted with caution because severe disease is determined not only by how quickly the virus replicates( 复制 ) but also by a person’s immune response. “It is also noted that by infecting many more people, a very infectious virus may cause more severe disease and death even though the virus itself may be less pathogenic( 致病的 ),” he said. “Therefore, taken together with our recent studies showing that the Omicron variant can partially escape immunity from vaccines and past infection, the overall threat from the Omicron variant is likely to be very significant.”

Jeremy Kamil, an associate professor of microbiology and immunology at Louisiana State University Health Shreveport, pointed out that Delta, which turned out to be more pathogenic, showed a similar pattern of replicating more slowly in the lungs. “These authors found Omicron replicates fantastically well--even far better than either Delta or the original virus--in bronchial tissue,” Kamil said. “This could in some ways contribute to an advantage in transmission between people.”

Kamil added, “Of course, a huge component of Omicron’s transmissibility in real life is going to be its potential to escape neutralising antibodies that protect against infection in the first place. It’s very likely spreading well even between vaccinated people, especially those who haven’t recently gotten a booster shot.”

The findings, together with other recent work showing Omicron infects cells more readily, add to an emerging picture that the variant may be intrinsically more transmissible in addition to escaping existing immunity.

1 What is the kind of the passage?

A A news report. B A science fiction.

C A health guide. D A medicine advertisement.

2 What could Jeremy Kamil agree with?

A We should take the result seriously.

B Omicron may cause more severe disease and death.

C Both Omicron and Delta grew slowly in the lungs.

D Those who have gotten a booster shot won’t be infected.

3 What can we learn about Omicron?

A It is a new variant of Delta.

B Delta is less pathogenic than it.

C Vaccinated people needn’t worry about it.

D It may pose a great threat to people’s health.

4 According to the passage, which of the following may cause Omicron’s transmissibility?

A That many people haven’t been vaccinated.

B That many people refused to wears masks in public.

C That Omicron infects lung cells much more quickly.

D That existing immunity plays a poor part in fighting Omicron.

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【答案】

1 A

2 C

3 D

4 D

【解析】

【导语】

这是一篇新闻报道。文章讲述了实验室实验发现,在从支气管 ( 从气管到肺部的主要管道 ) 采集的组织样本中, Omicron Covid 变体比原始和 Delta 版本的冠状病毒繁殖速度快约 70 倍,这可能有助于解释其快速传播。

1

推理判断题。根据文章第一段 “The Omicron Covid variant has been found to multiply about 70 times quicker than the original and Delta versions of coronavirus in tissue samples taken from the bronchus( 支气管 ), the main tubes from the windpipe to the lungs, in laboratory experiments that could help explain its rapid transmission. ( 实验室实验发现,在从支气管 ( 从气管到肺部的主要管道 ) 采集的组织样本中, Omicron Covid 变体比原始和 Delta 版本的冠状病毒繁殖速度快约 70 倍,这可能有助于解释其快速传播。 )” 可知,这篇文章是有关于新冠肺炎变异病毒 Omicron Covid 变异株的相关报道,由此可推知,文章可能是一篇新闻报道。故选 A

2

推理判断题。根据文章第四段 “Jeremy Kamil, an associate professor of microbiology and immunology at Louisiana State University Health Shreveport, pointed out that Delta, which turned out to be more pathogenic, showed a similar pattern of replicating more slowly in the lungs. ( 路易斯安那州立大学卫生什里夫波特分校 (Louisiana State University Health Shreveport) 的微生物学和免疫学副教授杰里米 · 卡米尔 (Jeremy Kamil) 指出,致病性更高的 Delta 在肺部也表现出类似的复制模式,复制速度更慢。 )” 可知, Jeremy Kamil 可能会同意 Omicron Delta 在肺部生长缓慢。故选 C

3

推理判断题。根据文章第三段 ““It is also noted that by infecting many more people, a very infectious virus may cause more severe disease and death even though the virus itself may be less pathogenic( 致病的 ),” he said. “Therefore, taken together with our recent studies showing that the Omicron variant can partially escape immunity from vaccines and past infection, the overall threat from the Omicron variant is likely to be very significant.” ( 他说: 人们还注意到,一种传染性很强的病毒通过感染更多的人,可能会导致更严重的疾病和死亡,尽管这种病毒本身的致病性可能较低。 ”“ 因此,结合我们最近的研究表明, Omicron 变种可以部分逃脱疫苗和过去感染的免疫, Omicron 变种的总体威胁可能非常重大。 ”)” 可知,它可能对人们的健康造成很大的威胁。故选 D

4

细节理解题。根据文章倒数第二段 “Kamil added, “Of course, a huge component of Omicron’s transmissibility in real life is going to be its potential to escape neutralising antibodies that protect against infection in the first place. It’s very likely spreading well even between vaccinated people, especially those who haven’t recently gotten a booster shot.” (Kamil 补充道: 当然, Omicron 在现实生活中传播性的一个重要组成部分,将是它在最初抵御感染的中和抗体方面的潜力。它很可能在接种疫苗的人之间传播得很好,尤其是那些最近没有接受加强注射的人。 ”)” 可知,现有的免疫在对抗 Omicron 中发挥的作用很差,这可能会导致 Omicron 的传播性加强。故选 D

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1.

阅读下列短文,从每题所给的 A B C D 四个选项中,选出最佳选项。

A

The Biggest Stadiums in the World

People have been pouring into stadiums since the days of ancient Greece. In around 8 A.Q., the Romans built the Colosseum, which remains the world's best knownstadium are continues to inform contemporary design. Rome’s Colosseum was 157 feet tall and had 80 entrances, seating 50,000 people. However, that was small fry compared with the city’s Circus Maximus, which accommodated around 250,000 people.

These days, safety regulations-not to mention the modern sports fan’s desire for a good view and a comfortable seat-tend to keep stadium capacities (容量) slightly lower. Even soccer fans tend to have a seat each; gone are the days of thousands standing to watch the match.

For the biggest stadiums in the world, we have used data supplied by the World Atlas list so far, which ranks them by their stated permanent capacity, as well as updated information from official stadium websites.

All these stadiums are still functional, still open and still hosting the biggest events in world sport.

•Rungrado 1st of May Stadium , Pyongyang, D.P.R-Korea. Capacity. 150,000. Opened. May 1,1989.

•Michigan Stadium , Ann Arbor, Michigan, U.S. Capacity: 107,601. Opened. October

1, 1927.

•Beaver Stadium , State College, Pennsylvania, U.S. Capacity: 106,572. Opened:

September 17, I960.

•Ohio Stadium, Columbus, Ohio, U.S. Capacity: 104,944. Opened: October 7, 1922.

•Kyle Field, College Station, Texas, U.S. Capacity: 102,512. Opened: September

24,1927.

21.How many people could the Circus Maximus hold?

A.104,944. B. 107,601. C. About 150,000. D. About 250,000.

22.Of the following stadiums, which is the oldest?

A. Michigan Stadium.

B. Beaver Stadium.

C. Ohio Stadium.

D. Kyle Field.

23.What do the listed stadiums have in common?

A. They host big games.

B. They have become tourist attractions

C. They were built by Americans.

D. They are favored by architects

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1.

B

When almost everyone has a mobile phone, why are more than half of Australian homes still paying for a landline ( 座机 ) .

These days you'd be hard pressed to find anyone in Australia over the age of 15 who doesn’t own a mobile phone. In fact plenty of younger kids have one in their pocket. Practically everyone can make and receive calls anywhere, anytime.

Still, 55 percent of Australians have a landline phone at home and only just over a quarter 29% rely only on their smartphones, according to a survey (调查) .Of those Australians who still have a landline, a third concede that it's not really necessary and they're keeping it as a security blanket - 19 percent say they never use it while a further 13 percent keep it in case of emergencies. I think my home fallsinto that category.

More than half of Australian homes are still choosing to stick with their home phone.Age is naturally a factor (因素 -only 58 percent of Generation Ys still use landlines now and then, compared to 84 percent of Baby Boomers who've perhaps had the same home number for 50 years. Age isn't the only factor; I'd say it's also to do with the makeup of your household.

Generation Xers with young families, like my wife and I, can still find it convenient to have a home phone rather than providing a mobile phone for every family member. That said, to be honest the only people who ever ring our home phone are our Baby Boomers parents, to the point where we play a game and guess who is calling before we pick up the phone using Caller ID would take the fun out of it .

How attached are you to your landline? How long until they go the way of gas street lamps and morning milk deliveries?

24. What does paragraph 2 mainly tell us about mobile phones?

A. Their target users.

B. Their wide popularity.

C. Their major functions.

D. Their complex design.

25. What does the underlined word "concede" in paragraph 3 mean?

A. Admit.

B. Argue.

C. Remember.

D. Remark.26. What can we say about Baby Boomers?

A. They like smartphone games.

B. They enjoy guessing callers’ identity.

C. They keep using landline phones.

D. They are attached to their family.

27. What can be inferred about the landline from the last paragraph?

A. It remains a family necessity.

B. It will fall out of use some day.

C. It may increase daily expenses.

D. It is as important as the gas light.

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1.

C

You’ve heard that plastic is polluting the oceans—between 4.8 and 12.7 million tonnes enter ocean ecosystems every year. But does one plastic straw or cup really make a difference? Artist Benjamin Von Wong wants you to know that it does. He builds massive sculptures out of plastic garbage, foreing viewers to re-examine their relationship to single-use plastic products.

At the beginning of the year, the artist built a piece called Strawpocalypse, a pair of 10-foot-tall plastic waves, frozen mid-crash. Made of 168,000 plastic straws collected from several volunteer beach cleanups, the sculpture made its first appearance at the Estella Place shopping center in Ho Chi Minh City, Vietnam.

Just 9% of global plastic waste is recycled. Plastic straws are by no means the biggest source ( 来源 )of plastic pollution, but they’ve recently come under fire because most people don’t need them to drink with and, because of their small size and weight, they cannot be recycled. Every straw that' s part of Von Wong's artwork likely came from a drink that someone used for only a few minutes. Once the drink is gone, the straw will take centuries to disappear.

In a piece from 2018, Von Wong wanted to illustrate ( 说明 ) a specific statistic: Every 60 seconds, a truckload's worth of plastic enters the ocean. For this work, titled "Truckload of Plastic, "Von Wong and a group of volunteers collected more than 10,000 pieces of plastic, which were then tied together to look like they’d been dumped( 倾倒 )from a truck all at once.

Von Wong hopes that his work will also help pressure big companies to reduce

their plastic footprint.

28. What are Von Wong’s artworks intended for?

A. Beautifying the city he lives in.

B. Introducing eco-friendly products.

C. Drawing public attention to plastic waste.

D. Reducing garbage on the beach.

29. Why does the author discuss plastic straws in paragraph 3?

A. To show the difficulty of their recycling.

B. To explain why they are useful.

C. To voice his views on modern art.

D. To find a substitute for them.

30. What effect would "Truckload of Plastic" have on viewers?

A. Calming.

B. Disturbing

C Refreshing

D. Challenging.

31. Which of the following can be the best title for the text?

A. Artists' Opinions on Plastic Safety

B. Media Interest in Contemporary ArtC. Responsibility Demanded of Big Companies

D. Ocean Plastics Transformed into Sculptures

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1.

D

During an interview for one of my books, my interviewer said something I still think about often. Annoyed by the level of distraction( 干扰 )in his open office, he said, “That’s why I have a membership at the coworking space across the street so I can focus. "His comment struck me as strange. After all, coworking spaces also typically use an openoffice layout ( 布局 ). But I recently came across a study that shows why his approach works .

The researchers examined various levels of noise on participants as they completed tests of creative thinking. They were randomly divided into four groups and exposed to various noise levels in the background, from total silence to 50 decibels( 分贝 ),70 decibels, and 85 decibels. The differences between most of the groups were statistically insignificant; however,the participants in the 70 decibels group those exposed to a level of noise similar to background chatter in a coffee shop-significantly outperformed the other groups. Since the effects were small, this may suggest that our creative thinking does not differ that much in response to total silence and 85 decibels of background noise.

But since the results at 70 decibels were significant, the study also suggests that the right level of background noise not too loud and not total silence may actually improve one’s creative thinking ability. The right level of background noise may interrupt our normal patterns of thinking just enough to allow our imaginations to wander, without making it impossible to focus. This kind of "distracted focus" appears to be the best state for working on creative tasks.

So why do so many of us hate our open offices? The problem may be that, in our offices, we can't stop ourselves from getting drawn into others’ conversations while we’re trying to focus. Indeed, the researchers found that face-to-face interactions and conversations affect the creative process, and yet a coworking space or a coffee shop provides a certain level of noise while also providing freedom from interruptions.

32. Why does the interviewer prefer a coworking space?

A. It helps him concentrate.

B. It blocks out background noise.

C. It has a pleasant atmosphere.

D. It encourages face-to-face interactions.

33. Which level of background noise may promote creative thinking ability?

A. Total silence.

B. 50 decibels.

C. 70 decibels.

D. 85 decibels.

34. What makes an open office unwelcome to many people?

A. Personal privacy unprotected.

B. Limited working space.

C. Restrictions on group discussion.

D. Constant interruptions.

35.What can we infer about the author from the text?

A. He's a news reporter. B. He’s on office manager.

C. He's a professional designer.

D. He's a published writer.

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1.

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项

为多余选项

According to Jessica Hagy, author of How to Be Interesting, it's not difficult to make yourself interesting at a dinner party.

___36___, if you're out of your comfort zone or if you're wandering into somebody's house for the first time. So the main thing is just to show up and be adventurous, trying different foods and talking to strangers.

People love to talk about themselves. If you can start the conversation with a question other than “What do you do for a living?", you'll be able to get a lot more interesting conversation out of whomever it is you're talking to. ____37 ___. it can bring in "I have this old, broken-down vehicle" or "I rode the bus with these crazy people who were laughing at silly jokes in the back." It just opens up conversation.

____38___? If you can't take their wine away, you should certainly try to take away

their soapbox (讲台) .If you're the host, you can ask them to help you in the kitchen

with something and just remove them from the situation.___39_____

And what about that other dinner-party killer: awkward silence? If you're faced with

an awkward silence at a dinner party, the only thing that always gets everyone talking again is to give the host a compliment ( 赞扬 ).__40___. Just quickly tun around and say, "This cake is extremely delicious and you have to tell me all about it.”

So being interesting at a dinner party isn’t that hard.

A. How do you know the host

B. The first step is to go exploring

C. If you ask the question "How did you get here?',

D. Be prepared to have awkward conversations with strangers

E. Or turn the conversation into a topic where they have little to say

F. What about that person who has had too much to drink or won't stop talking

G. He or she is the person who is feeling the weight of that awkwardness the most

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