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. 28. We should take good care of our eyes _______________ A. only when we can see well
B. even if we can see well
C. only when we cannot see D. only when we realize how important perfectly
our eyes are
29. The underlined word “blurry” in the second paragraph probably means . A. unclear
B. clear
C. obvious
D. possible
30. Having two eyes instead of one is particularly useful for _____ . A. seeing at night C. judging distances
B. seeing objects far away D. looking over a wide area
31. People who suffer from astigmatism have _____ .
A. one eye bigger than the B. a difficulty that can be removed by an other
operation
C. eyes that are not exactly the D.an eye difficulty that cannot be right shape D
Wearing headphones is very common among young people. Their affection for headphones reflects a desire to avoid boredom, inconveniences, and undesirable social interactions（互动）. The saying “headphones in, world out” has gained popularity among young people recently. Unfortunately for the headphone lovers, “world out” is not a great policy for a thoughtful society. The widespread use of headphones in public is harmful to users because it limits intellectual growth and makes potentially meaningful interactions with strangers impossible.
corrected by glasses
Frequent headphone users are missing out on valuable experiences, thus, limiting intellectual growth. Young people wear headphones, thinking they will face fewer social challenges, arguments, or even casual rudeness. Though that sounds like a good idea, we do not grow by avoiding “discomfort”. In fact, to develop healthily, a teenager has to be faced with challenges or even embarrassments. Just as a saying goes, “Storms make trees take deeper roots.” Wearing headphones when faced with social awkwardness teaches us to be passive, and prevents us from becoming mature intellectually.
Headphones can also cause us to miss out on positive interactions with strangers. Writer Jacob Bernstein describes a sweet interaction between a young woman and an older woman on a train that would not have occurred if the young woman had remembered her headphones as usual that day. A similar case is discussed in “Throw Away Your Headphones, Boredom Is Good” by Rosecrans Baldwin. After giving up headphones, he adapts to the social environment during his daily routine. He laughs at ridiculous overheard discussions and even enjoys his morning jog without a soundtrack. Becoming familiar with people outside your chosen group can open your eyes to other walks of life and their unique experiences.
Young people think they are good communicators. However,
communication is not measured in Facebook friends. Real communication is the basis of humanity. We need real interactions in our daily life.
This summer, don’t forget to take off your headphones and plug yourself into life.
32. What does the author think of “discomfort” to young people in Paragraph 2?
A. Beneficial. Unnecessary.
33. The sweet interaction between a young woman and an older woman on a train occurred _________. A. by accident secret
34. The author mentioned the stories of Jacob Bernstein and Rosecrans Baldwin to _________. A. analyze their behaviors B. learn from the two stories C. give evidence for his argument D. make the article more attractive
35. What does the author imply about young people?
A. They become more and more independent.
B. on purpose
C. in time
D. in
B. Normal.
C. Annoying.
D.
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