Question

【题目】When we see well, we do not think about our eyes very often. It is only when we cannot see perfectly that we realize how important our eyes are.

People who are near-sighted can only see things that are very close to their eyes. Everything else seems blurry. Many people who do a lot of work, such as writing, reading and sewing become near-sighted. People who are far-sighted suffer from just the opposite problem. They can see things that are far away, but they have difficulty in reading a book unless they hold it at arm’s length. If they want to do much reading, they must get glasses, too.

Other people do not see clearly because their eyes are not exactly the right shape. They have what is called astigmatism (散光). This, too, can be corrected by glasses. Some people’s eyes become cloudy because of cataracts (白内障). Long ago these people often became blind. Now, however, it is possible to operate on the cataracts and remove them.

Having two good eyes is important for judging distances. Each eye sees things from a slightly different angle. To prove this to yourself, look at an object out of one eye; then look at the same object out of your other eye. You will find the object’s relation to the background and other things around it has changed. The difference between these two different eye views helps us to judge how far away an object is. People who have only one eye cannot judge distances as people with two eyes.

【1】We should take good care of our eyes .

A. only when we can see well

B. only when we cannot see perfectly

C. even if we can see well

D. only when we realize how important our eyes are

【2】The underlined word blurry in the second paragraph probably means .

A. obvious B. possible C. clear D. unclear

【3】Having two eyes instead of one is particularly useful for .

A. seeing at night

B. seeing objects far away

C. looking over a wide area

D. judging distances

【4】People who suffer from astigmatism have .

A. one eye bigger than the other

B. eyes that are not exactly the right shape

C. a difficulty that can be corrected by an operation

D. an eye difficulty that cannot be corrected by glasses

Answer 1

【答案】

【1】C

【2】D

【3】D

【4】B

【解析】

试题分析：文中列举了各种眼疾及对我们的影响。呼吁我们要随时保护眼睛，不要等有问题了再保护。

【1】C 推理判断题。根据When we see well, we do not think about our eyes very often. It is only when we cannot see perfectly that we realize how important our eyes are.可知要平时关心眼睛，不要等有问题了才意识到它的重要性。根据文意选C.

【2】D 猜测词意题。句意：近视的人只能看清近处的东西，一切似乎都是模糊的。根据常识也可猜测出大概意思，blurry.本意就是“模糊的”，故选D.

【3】D 细节推理题。根据Having two good eyes is important for judging distances. Each eye sees things from a slightly different angle.可知双眼在判断距离方面更重要。故选D.

【4】B 细节推理题。根据Other people do not see clearly because their eyes are not exactly the right shape. They have what is called astigmatism (散光).可知散光看不清东西是因为眼睛变形造成的，故选B.