三、阅读理解 (共10小题;每小题2分，满分20分)

阅读下面的三篇短文，根据短文内容，从短文后各题所给的A、B、C、D四个选项中，

选择最佳选项。

A

For some people, the sight of a mouse can be the reason to scream. For other mice, the same sight can be the reason to sing.

Mice will possibly never sing their way to Broadway (百老汇), but researchers from Washington University in the United States have found evidence that mice do, in fact, sing. Until now, singing mice have become stars in cartoons, but they have never been heard singing out in real life before.

Scientists already knew that mice make ultrasonic (超声波) sounds—noises that are too high for people to hear without special equipment(仪器). Mouse babies cry out when they lose their mothers. Male mice make noise when they smell females.

To find out whether mice put such sounds together in song-like pattern(模式), the researchers recorded the sounds of 45 male mice. They put each mouse in its own room and cause them to make noise. Microphones recorded the sounds.

Using computer software, the researchers found the mice produced about 10 syllables(音节) every second.

The results showed that nearly all of the mice repeated sequences (顺序)of syllables in different ways. Scientists call that a song. Birds, whales, and people do the same thing.

Not all scientists are sure that what the mice are doing is actually singing. To prove it, the researchers must show that mice are able to learn to sing. And, they need to figure out why the mice sing. One guess, the researchers say, is that male mice use songs to attract females that they like.

However, the discovery that mice produce such complicated sounds could be useful for the study of communication in animals, including people.

26. We hear mice singing only when we   ▲    .

A. pay special attention to them      B. go to Broadway

C. have learned a lot about them      D. watch a cartoon movie

27. From the third paragraph, we know    ▲    .

A. mice often sing their songs to warn other mice

B. mice are more clever than human beings

C. mice only use ultrasonic sounds to communicate

D. mice’s ultrasonic sounds are too high for people to hear without special equipment

28. What does the passage mainly tell us?

A. Mice sing in real life.       B. Mouse babies cry in real life.

C. Mice sing for no reasons.        D. Computers are used to study mouse songs.