Day 14
Passage 1
When we see well, we do not think about our eyes very often. It is only when we cannot see perfectly____1___we realize how important our eyes are.
People who are near-sighted can only see things that are very close to their eyes. When people do a lot of work, such as ____2___（write）, reading and sewing, they become near-sighted.
People who are far-sighted can see things that are far away, but they have __3_____ (difficult) in reading a book unless they hold it at an arm's ___4____（long）. If they want to do much reading, they must wear glasses.
Other people do not see clearly because they have astigmatism (散光). This, too, can____5___（correct） by wearing 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 ____6___.
Having two good eyes ____7___（be） important when you judge distances. Each eye sees things from a ____8___（slight） 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 ___9____ (change) The difference __10_____these two different eye views helps us judge how far away an object is. So protect your eyes well.
Passage 2
Many of us enjoy music because of the way it makes us feel. But for chimps (黑猩猩), it’s nothing more than a lot of noise. Scientists from the University of York, UK, found that chimps don’t appreciate listening to music, despite their DNA__1_____ (be) 96 to 98 percent similar to that of humans.
In the study, a “jukebox (自动唱机)” ___2____ (create), which allowed chimps to select their favorite classical, pop or rock music, or___3____ (simple) to choose silence. The animals walked away from the music they seemed to dislike the most. The study found they were less likely____4___ (walk) away from classical music like Mozart than fast-paced pop songs like those of Justin Bieber’s.
Emma Wallace from the University of York told the Daily Mail that the fast-paced rhythm may have been ___5____turned the chimps off. ___6____it’s more possible for the chimpanzees to leave to the faster music, they did not show an actual ___7____ (prefer) for the slower classical music,” said Wallace. “In fact, they seem to be indifferent to both___8____ (type) of music.”
These results suggested that music____9___ (appreciate) may be something that is unique___10____humans, according to Wallace.
Keys
Passage 1
1. that 2. writing 3. difficulty 4. length 5. be corrected
6. them 7. is 8. slightly 9. has changed 10. between
Passage 2
1. being 2. was created 3. simply 4. to walk 5. what
6. while/though/although 7. preference 8. types 9. appreciation 10. to
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