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备战英语六级听力练习题第25期

时间:2016-03-07 06:02来源:互联网 提供网友:nan   字体: [ ]
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Passage Three 

17. 

A) Whether it can be detected and checked.

B) Whether it will lead to widespread food shortage1.

C) Whether global warming will speed up in the future.

D) Whether it will affect their own lives.

18. 

A) Many species2 have moved further north.

B) Many new species have come into existence.

C) Many species have developed a habit of migration3.

D) Many species have become less sensitive to climate.

19. 

A) Storms and floods.

B) Disease and fire. 

C) Less space for their growth.

D) Rapid increase of the animal population.

20. 

A) They will gradually die out.

B) They will be able to survive in the preserves.

C) They will have to migrate4 to find new homes.

D) They will face extinction5 without artificial reproduction.

答案及参考原文:

DABC

If the earth gets hotter in the new century, what will happen to animals and the plants which animals depend on for survival6? The question offers another way of looking at the greenhouse effect. People have talked about the general problem of global warming for some time. But they were usually worried about things like whether to buy a home on the coast(17). Biologists and others scientists turned their attention to plants and animals at an important meeting that took place last October. They reviewed evidence that plants and animals are sensitive to climate. Since the Ice age ended 2,000 years ago, and warmer temperatures returned to the northern latitudes7, many species have migrated8 north(18). If the predictions about the greenhouse are correct, temperatures will rise by the same amount in the next 100 years as they did in the past 10,000. Will animals and plants be able to adapt that quickly to change in the environment? Many won't. Certain species will probably become very rare. Experts say plants under climate stress will very open to disease and fire(19). Forest fires may become more common. That in turn may harm animals that depend on the trees for food or shelter. Any preserves we set up to protect the endangered species may become useless as the species are forced to migrate along with their natural homes(20). Changes are part of life, but rapid change says scientist George Woodwill, is the enemy of life.

17. What is the concern of ordinary people about the greenhouse effect?

18. What has happened since the end of Ice age?

19. What will be a possible threat to plants in the future?

20. According to the passage, what will probably happen to the endangered species?


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1 shortage 1yrwh     
n.缺少,缺乏,不足
参考例句:
  • The city is suffering a desperate shortage of water.这个城市严重缺水。
  • The heart of the problem is a shortage of funds.问题的关键是缺乏经费。
2 species FTizN     
n.物种,种群
参考例句:
  • Are we the only thinking species in the whole of creation?我们是万物中惟一有思想的物种吗?
  • This species of bird now exists only in Africa.这种鸟现在只存在于非洲。
3 migration mDpxj     
n.迁移,移居,(鸟类等的)迁徙
参考例句:
  • Swallows begin their migration south in autumn.燕子在秋季开始向南方迁移。
  • He described the vernal migration of birds in detail.他详细地描述了鸟的春季移居。
4 migrate MDvxk     
vi.(候鸟等)迁徙,移居(国外),迁移
参考例句:
  • Many birds migrate south for the winter.冬天时,许多鸟类迁徙南方。
  • The rich people often migrate in winter to Florida.有钱的人常在冬季搬迁到佛罗里达州去。
5 extinction sPwzP     
n.熄灭,消亡,消灭,灭绝,绝种
参考例句:
  • The plant is now in danger of extinction.这种植物现在有绝种的危险。
  • The island's way of life is doomed to extinction.这个岛上的生活方式注定要消失。
6 survival lrJw9     
n.留住生命,生存,残存,幸存者
参考例句:
  • The doctor told my wife I had a fifty-fifty chance of survival.医生告诉我的妻子,说我活下去的可能性只有50%。
  • The old man was a survival of a past age.这位老人是上一代的遗老。
7 latitudes 90df39afd31b3508eb257043703bc0f3     
纬度
参考例句:
  • Latitudes are the lines that go from east to west. 纬线是从东到西的线。
  • It was the brief Indian Summer of the high latitudes. 这是高纬度地方的那种短暂的晚秋。
8 migrated 038944bdf4e9ea278463f6ea239928ca     
v.迁移,移往( migrate的过去式和过去分词 )
参考例句:
  • Pioneers from New England migrated to all parts of the United States. 来自新英格兰的拓荒者移居到美国各地。 来自《简明英汉词典》
  • Great herds of buffalo migrated across the plains. 大群野牛迁徙过平原。 来自《简明英汉词典》
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