更多"When we can see well, we don’t thin"的相关试题:
[单项选择]When we can see well, we don’t think about our eyes very’ often. It is only when we cannot see perfectly that we come to see how important our eyes ale.
People who are nearsighted can only see things that are very close to their eyes. Many people who do a lot of close work, such as writing, reading and sewing, become nearsighted. Then they have to wear glasses in order to see distant things clearly.
People who are farsighted suffer from just the opposite problem. They can see things that are far away, but they have difficulty 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 don’t see clearly because their eyes are not exactly the right shape. This, too, can be corrected by glasses. Some people’s eyes become cloudy because of cataracts (白内障). Long age these people often became blind. Now, however, it is possible to operate on the cataracts and remove them.
When night falls, colors become fain
A. we are sick
B. we can’t see clearly
C. we wear glasses
D. we burst into tears
[单项选择]
When we can see well, we don’t think about our eyes very’ often. It is only when we cannot see perfectly that we come to see how important our eyes ale.
People who are nearsighted can only see things that are very close to their eyes. Many people who do a lot of close work, such as writing, reading and sewing, become nearsighted. Then they have to wear glasses in order to see distant things clearly.
People who are farsighted suffer from just the opposite problem. They can see things that are far away, but they have difficulty 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 don’t see clearly because their eyes are not exactly the right shape. This, too, can be corrected by glasses. Some people’s eyes become cloudy because of cataracts (白内障). Long age these people often became blind. Now, however, it is possible to operate on the cataracts and r
A. we are sick
B. we can’t see clearly
C. we wear glasses
D. we burst into tears
[单项选择]When we see well, we do not think about our eyes very often. (79) It is only when we cannot see perfectly that we realize how important our eyes are.
People who are nearsighted can only see things that are very close to their eyes. Everything else seems blurry(模糊的).Many people who do a lot of close work, such as writing, reading and sewing, become nearsighted. Then they have to wear glasses in order to see distant objects clearly.
People who are farsighted 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
A. only when we can see well
B. only when we cannot see perfectly
C. even if we can sec well
D. only when we realize how important our eyes are