阅读下面的短文，并根据短文后的要求答题（请注意问题后的字数要求）。
Electronic devices (装置) are changing the way people listen to music. But studies show the devices may
be causing hearing loss in many people. Some experts say people may be playing them too loud and too long.
And experts say sound levels on these devices need to be set lower.
Researchers did a study with three hundred high school students and one thousand adults. They were
asked about their use of portable music devices. Forty percent of the students and adults said they set the
sound levels at high on their players. But students were twice more likely to play the mu- sic at a very loud
volume (音量). More than half of the students said they would probably not limit their listening time.
The study found that more than half of the students and less than forty percent of the adults had at least
one kind of hearing loss. Some reported difficulty hearing parts of a discussion between two people. Others
said they had to raise volume controls on a television or radio to hear it better. And, some experienced ringing
in their ears or other noises.
Hearing experts say part of the problem is the listening equipment people are using. They say large
earphones that cover the whole ear are probably safer than the smaller earbuds (耳塞) that come with most
music players. Hearing loss may not be obvious for years, however, once it happens, there is few chance of
curing. About thirty million Americans have some hearing loss. One third of them lost their hearing as a result
of loud noises.
The American Speech-language-Hearing Association is working with companies and government officials
on setting rules for use of portable music devices. The group says the best way to protect your hearing is
to _____, limit listening time and use earphones that block out foreign noises.
1. What is the best title of the passage? (Please answer within 10 words.)
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2. Which sentence in the passage can be replaced by the following one? Compared to adults, teenagers are
more likely to turn up their players.
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3. Please fill in the blank in the last paragraph with proper words or phrases to complete the sentence. (Please
answer within 10 words.)
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4. What trouble will happen to a person if he suffers some hearing loss? (Please give at least two examples
mentioned in the passage, each within 15 words.
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5. Translate the underlined sentence in the fourth paragraph into Chinese.
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