A、Animals don’t like to cry while human beings do. B、Human beings cry because of their emotions while animals don’t. C、Human’s t

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问题  
Why do we cry? Can you imagine life without tears?
    Not only do tears keep your eyes lubricated, they also contain a substance that kills certain bacteria so they can’t infect your eyes. Give up your tears and you lose this on-the-spot defence. Nor would you want to give up the flood of extra tears you produce when you get something physical or chemical in your eyes. Tears are very good at washing this irritating stuff out. Another thing you couldn’t do without your tears is cry—from joy, anger, or sadness.
     (23)Humans are the only animals that produce tears in response to emotions. And most people say a good cry makes them feel better.
     (24)Many scientists, therefore, believe that crying somehow helps us cope with emotional situations. Tear researcher William Frey is trying to figure out how it happens.
    One possibility, he says, is that tears discharge certain chemicals from your body, chemicals that build up during stress. "When people talk about ’crying it out,’ I think that might actually be what they arc doing," he says.
    If Frey is right, what do you think will happen to people who restrain their tears?(25)Boys, for example, cry only about a quarter as often as girls once they reach their teenage years. And we all cry a lot less now than we did as babies.
    Could it possibly be that we face less stress? Maybe we’ve found other ways to deal with it. Or maybe we just feel embarrassed.
Questions 23 to 25 are based on the passage you have just heard.
23. What’s the difference between human beings and other animals when shedding tears?
24. What is William Frey trying to find?
25. What does the passage say about teenage boys and girls?

选项 A、Animals don’t like to cry while human beings do.
B、Human beings cry because of their emotions while animals don’t.
C、Human’s tears contain substance that would kill bacteria while animals don’t.
D、Animals can give up tears while humans can’t.

答案B

解析 细节题。本题问到人和动物流泪时的区别,文中并没有明显的语句将两者作对比,但有一个关键句提到人是唯一一种因情感而流泪的动物,“Human are the only animals that produce tears inresponse to emotions”。由此可知本题选B。
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