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2010职称英语考前每日一练[理工类C级-第52期]

2010-02-25 15:35 来源:  纠错 打印 收藏   

  阅读判断

  第2部分:阅读判断(第16~22题,每题1分,共7分)

  下面这篇短文后列出7个句子,请根据短文的内容对每个句子做出判断。如果该句提供的是正确信息,请在答题卡上把A涂黑;如果该句提供的是错误信息,请在答题卡上把B涂黑;如果该句的信息文章中没有提及,请在答题卡上把C涂黑。

Earthquakes and Animals

     Scientists who try to predict earthquakes have gotten some new helpers recently--animals. Animals often seem to know in advance that an earthquake is coming, and they show their fear by acting in strange ways. Before a quake (地震) in China in 1975 snakes awoke from their winter sleep early only to freeze to death in the cold air. All the unusual behavior, as well as physical changes in earth, alerted (提醒) Chinese scientists to the coming quake. They moved people away from the danger zone and saved thousands of lives.

     One task for scientists today is to learn exactly which types of animal behavior predict quakes. It is not an easy job. First of all not every animal reacts to the danger of an earthquake. Just before a California quake in 1979, for example, an Arabian horse became very nervous and tried to break out of his stall. The horse next to him, however, remained perfectly calm. It is also difficult sometimes to tell the difference between normal animal calmness and "earthquake nerves." A zookeeper once told earthquake researchers that his cougar (美洲狮) had been acting strangely. It turned out that the cougar had a stomachache.

  A second task for scientists is to find out exactly what kinds of warning the animals receive. They know that animals sense far more of the world than humans do. Many animals can see, hear, and smell things that people do not even notice. Some can detect tiny changes in air pressure, gravity, or the magnetism (磁力) of earth. This extra sense probably helps animals predict earthquakes.

  A good example of this occurred with a group of dogs. They were closed in an area that was being shaken by a series of tiny earthquakes. Before each quake a low booming sound was heard. Each sound caused the dogs to bark (吠) wildly. The dogs began to bark during a silent period! A scientist who was recording the quakes looked at his machine. He realized that the dogs had reacted to a booming noise. They also sensed the tiny quake that followed it. The machine recorded both, though humans felt and heard nothing.

  In this case there was a machine-to check what the dogs were sensing. Many times, however, our machines record nothing out of the ordinary, even though animals know a quake is coming. The animals might be sensing something we do measure but do not recognize as a warning. Discovering what animals sense, and learning how they know danger signals, is a job for future scientists.

  16 During an earthquake in China in 1975, some cows had "earthquake nerves" and some remained calm.

  A Right B Wrong   C Not mentioned

  17 Chinese scientists moved people away from the coming quake zone after noticing the strange behavior of some animals and physical changes in earth.

  A Right B Wrong   C Not mentioned

  18 Animals of the same kind always react in the same way to the danger of a quake.

  A Right B Wrong   C Not mentioned

  19 The cougar behaved strangely because it had sensed the threat of a quake.

  A Right B Wrong   C Not mentioned

  20 All animals can sense the very small changes in air pressure, gravity, or the magnetism of earth.

  A Right B Wrong   C Not mentioned

  21 The dogs mentioned in the passage sensed both the low booming sounds and the minor quakes following them.

  A Right B Wrong   C Not mentioned

  22 A task for future scientists is to find out how an animal receives a warning signal.

  A Right B Wrong   C Not mentioned

  【参考答案】

  16. C  17. A  18. B  19. B  20. B

  21. A  22. A 

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