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 B Four American college students learned last week that free music downloads can carry a hidden price tag --- US $ 12,000 to $ 17,500, to be exact. Major record companies accused the students of fueling music piracy by running file-sharing networks on campus allowing hundreds of songs to be downloaded for free. Last Thursday, the four promised not to violate the companies’ copyrights. Although they did not admit any wrongdoing, they each agreed to pay thousands of dollars to the Recording Industry Association of America . “I don’t believe that I did anything wrong, said Daniel Peng at Princeton University, one of the four. “I hope that for the sake of artists, the larger issues can soon be resolved. None appears to have made any money off the file-sharing systems they operated, which were confined to their campus’s computer networks. The payments mark the first time record companies have recovered money from individuals in the US accused of piracy on file-sharing networks. This may be a sign of things to come, as the industry starts taking its battle against online piracy directly to users. Many record-company executives blame the long slump in CD sales on file-sharing networks, which let users copy songs from each other’s computers for free. Matt Oppenheim, senior vice president of business and legal affairs for the RIAA, said the settlements, although well below what the companies could have asked for, were “the right amount given the situation. He also noted that since the four lawsuits were filed, at least 18 campus file-sharing networks have been taken down by their operators. 查看更多

 

题目列表(包括答案和解析)

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(=unclear). Many people who do a lot of work, such as writing, reading and sewing become near―sighted. Then 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 (角度). 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 distance as people with two eyes.

 

51. 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

52. When things far away seem indistinct(模糊不清) , one is probably _________.

A. near-sighted                                      B. far-sighted

C. astigmatic                                         D. suffering from cataracts

53. The underlined word suffer from in the second paragraph probably means __________.

A. experience      B. imagine              C. feel pain               D. are affected with

54. 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

55. 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

查看答案和解析>>

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(=unclear). Many people who do a lot of work, such as writing, reading and sewing become near—sighted. Then 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 (角度). 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 distance 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. When things far away seem indistinct(模糊不清) , one is probably _________.

A. near-sighted          B. far-sighted

C. astigmatic              D. suffering from cataracts

3. The underlined word suffer from in the second paragraph probably means _____.

A. experience        B. imagine      C. feel pain     D. are affected with

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

5. 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

查看答案和解析>>

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(=unclear). Many people who do a lot of work, such as writing, reading and sewing become near—sighted. Then 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 (角度). 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 distance as people with two eyes.

39. 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

40. When things far away seem indistinct(模糊不清) , one is probably _________.

A. near-sighted          B. far-sighted

C. astigmatic              D. suffering from cataracts

41. The underlined word suffer from in the second paragraph probably means _____.

A. experience        B. imagine      C. feel pain     D. are affected with

42. 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

43. 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

查看答案和解析>>

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 (=unclear). Many people who do a lot of work, such as writing, reading and sewing become near—sighted. Then

    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 (角度). 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 distance as people with two eyes.

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

When things far away seem indistinct(模糊不清) , one is probably     .

   A. near-sighted                    B. far-sighted

   C. astigmatic                      D. suffering from cataracts

The underlined word "suffer "in the third paragraph probably means     .

   A. experience                     B. imagine

   C. feel pain                       D. are affected with

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

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

查看答案和解析>>

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 (unclear). 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 distance 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.. When things far away seem indistinct(模糊不清) , one is probably  ____  .

A.near-sighted

B.far-sighted

C.astigmatic

D.suffering from cataracts

3.The underlined word “suffer” in the third paragraph probably means  ____  .

A.experience

B.imagine

C.feel pain

D.are affected with

4.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

5. 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

 

查看答案和解析>>


同步练习册答案