Question

Tears are nature' s way of making us feel more comfortable. When our eyes is made uncomfortable by some small pieces of pollution,or when we are cutting onions, or when we are exhausted and "red-eyes" from over work and late hours, tears form in our eyes to clean and refresh them.

Tears are also a sign of strong emotion. We cry when we are sad and we cry when we are happy.

And tears seem to be uniquely human. We know that animals also experience emotion like fear,pleasure, loneliness,but they do not shed ( 流 ) tears.

Biologically speaking,tears are actually drops of saline fluid,which is a little bit salty,produced by a gland(腺)in the body. Because salt is an important component,tears may actually constitute(構(gòu)成)the most conclusive evidence that the human animal is the end product of a long evolutionary process that began in the sea.

And it is clear that,in addition to the emotional benefits, the shedding of tears has a specific biological function as well. Through tears, we can eliminate certain chemicals from our body which build up in response to stress and create a chemical imbalance in the body. Crying actually makes us feel better by correcting that imbalance and making us feel good again. And thus the emotional and the biological functions of tears merge(合并)into one and make us even more "human" than we would otherwise be.

(   ) 8. According to the passage, human beings may have originated in          .

A. the sea    B. the salt C. chemicals    D. animals

(   ) 9. Which of the following is NOT a function of tears?

A. Biological. B. Emotional. C. Political. D. Chemical.

(   ) 10. According to the article,which of the following is unique to humans?

A. The feeling of loneliness. B. The state of feeling good.

C. The ability to shed tears. D. The feeling of fear.
(   ) 11. The underlined word "eliminate" probably means          .

A. add    B. produce C. replace    D. remove

(   ) 12. Which of the following is the best title of the passage?

A.  Tears Are a Sign of Strong Emotion

B.  Tears Are Always Making Us Feel More Comfortable

C.  Tears Are Uniquely Human

D.  Tears Have Certain Biological Functions

Answer 1

8. A細(xì)節(jié)理解題。從第四段最后一句可以找到答案。

9. C事實(shí)判斷題。A項(xiàng)見第四段首句；B項(xiàng)見第二段；D項(xiàng)見最后一段的第二句。

10.C事實(shí)判斷題。第三段首句點(diǎn)題。A、 C和D 項(xiàng)見第三段剩余部分。

11.D詞義猜測(cè)題。前面提到流淚對(duì)人情感上的益處，接著說流淚也有具體的生物功能。因此，下文肯定是說流淚能"消除"人緊張時(shí)產(chǎn)生的某些化學(xué)物質(zhì)。A項(xiàng)和B項(xiàng)與語(yǔ)境相悖；C項(xiàng)"取代"含義模糊。

12.B主旨大意題—全文圍繞流淚給人帶來(lái)的好處展開。A項(xiàng)僅說明流淚是強(qiáng)烈情感的流露跡象，而短文還談到流淚還有一種生物功能；C項(xiàng)只是本文的一個(gè)細(xì)節(jié)；D項(xiàng)與A項(xiàng)一樣，以偏概全。只有B項(xiàng)才是文章的中心