Four years ago,a lobster(龙虾)fisherman,Gary Nichols,had never seen a lionfish,but today his traps are full of them.He catches so many lionfish now that he’s started to sell them.While his lobsters sell for $16 per kilogram,lionfish only make him $12. Lionfish are causing a great concern on his business and the commercial fishing industry in Florida,threatening other fish populations—in some cases reducing them by up to 90%.
Lionfish are native to the Indian and Pacific Oceans,but were accidentally introduced into Atlantic and Caribbean waters during the 1990s.With no natural enemies in the Atlantic and an ability to reproduce year-round,plus the favorable environment,their numbers have been rising in recent years.
Not only are lionfish causing losses to lobster fishermen like Nichols,they are also threatening the balance of the fragile ecosystem.
“Lionfish are eating almost anything that fits in their mouths.”says Lad Akins,director of REEF,a marine conservation group.“Some are commercially valuable fishes,like grouper and snapper that the fishermen depend on.Lionfish even could result in the extinction of some fish.”
In an effort to solve the problem,REEF runs a monthly contest,awarding prizes to those who catch the most lionfish.It also runs workshops educating divers about safe collection and removal techniques.Many volunteers have also joined the fight with a campaign that encourages people to eat lionfish.
“If we can’t beat them,let’s eat them!” said Michelle Kosiek,the manager of the Fish House Encore,which has been serving lionfish for the past 18 months.“There is a little bit of fear factor eating them.In fact,those who tried it have spoken well of it.”
24.The story of Gary Nichols shows that _______________.
A.1obsters are disappearing in the waters near Florida
B.the overpopulated lionfish are affecting Florida fishermen
C.it is hard for a fisherman to make a living by selling lobsters
D.lionfish have brought the Florida fishermen’s income down by 90%
25.What factors contribute to the fast increase of the lionfish population?
a.They are native to the Atlantic and Caribbean waters.
b.They have no natural enemies in Atlantic.
c.They are able to lay eggs non-stop every year.
d.The waters in Florida are suitable for their existence.
e.Some people introduced them there on purpose.
A.a,b,c B.b,c,d C.c,d,e D.a,d,e
26.Lad Akins considers the non-native lionfish as _______________.
A.a new source of economic increase
B.a positive promoter to the ecology of Florida waters
C.a disaster both commercially and ecologically
D.a chance to make Florida fish species diverse
27.In the fight against lionfish,Michelle Kosiek is helpful in _____________.
A.encouraging people to eat them
B.teaching divers removal techniques
C.making a collection of lionfish
D.awarding prizes to lionfish catchers
BBCA
健康环保累阅读概念:
健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。体裁有记叙文、 说明文、议论文和各种应用文。
健康环保类文章阅读技巧:
健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。阅读此类短文要以现象或事物为中心进行思考,理解现象产生的原因、条件和客观规律等。同时要抓住事物的特征、用途和相互关系等。科普环保类文章一般为说明文,从结构上看大致可分为三个部分:
第一部分一般是文章的首段,主要用来提出文章的主题,即文章想要阐述、说明的主要内容;
第二部分是文章的主体,可由若干个段落组成,对文章的主题进行展开说明;
第三部分是结尾段,对文章的主题进行归纳总结。这类文章多用一般现在时,而且一般多使用客观性词语表述。有时为了强调客观性,也常使用被动语态。
从近几年的考试题来看,科普环保类的文章越来越与人们的实际生活相接近。由于此类文章缺乏故事情节,很多同学对此类文章感到费解。但一般的科普类文章都是就事论事,需要逻辑推理和想象的时候较少,因此此类阅读题也没有同学们想象中的那么难,只要多加训练,就能较好地答题。
【阅读策略】
1、概要(Summarizing):
阅完材料后,将所阅材料浓缩,摘要,做出所阅材料的书面或口头梗概。
2、组织(Organization):
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A. The effects of flu and its symptoms B. Types of virus to cause flu C. People’s attitudes toward flu D. The cause of flu E. The way that flu spreads F. The methods to fight flu |
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Flu (which is short for influenza) is a highly infectious disease, the cause of which is a very tiny organism known as a virus. Several types of flu are recognized, depending on the type of virus that causes the disease.
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Flu can often cause problems in breathing, and general infection of the lung. With elderly and weak people, these added complications often produce serious results. The virus, if not properly treated, can weaken the body so that patient may develop more serious illnesses, such as pneumonia and bronchitis. When people catch flu, they often complain of a headache or a sore throat. They usually have a fever and their temperature rises from the normal 37℃ (98.6) to about 39.5℃ (103). Sometimes a person has a dry hacking cough and aching joints.
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Today many doctors use drugs that fight the disease. And scientists have also developed vaccines that help to prevent it. If the patient has proper treatment, and complete rest in bed, the virus is normally beaten within a week to ten days.
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How does flu spread so quickly? When the infected person breathes out, sneezes or coughs, he gives out droplets of moisture in the breath from his mouth or nose. These remain in the air for some time. Flu viruses are present in these droplets. If a person sneezes in a crowd or poorly ventilated place, such as a lift, viruses can easily be carried from an infected person to a healthy person. This is known as droplet infection. The healthy person will breathe in the viruses given out by the infected person.
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There are three main types of virus that cause flu, which are called type A, B and C. type A is the most powerful of the three, and undergoes minor changes in its genetic material every few years. The new form of the virus is called a strain. The new strain is not affected by the current vaccines. It is said to be “resistant” to them. So doctors must be continually producing new vaccines to combat the new strains of virus.