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    6．Now Hear This
    What do former American president Bill Clinton and rock musician Pete Townshend have in common．'？Both men have hearing damage from exposure to loud music，and both now wear hearing aids as a consequence．As a teenager，Clinton played saxophone in a band．Townshend，who has the more severe hearing loss，was a guitarist for a band called the Who．He is one of the first rock musicians to call the public's attention to the problem of hearing loss from exposure to loud music．
    Temporary hearing loss can happen after only 15minutes of listening to loud music．One early warning sign is when your ears begin to feel warm while you listen to music at a rock concert or through headphones．One later is that an unusual sound or a ringing is sometimes produced in your head after the concert．
    "What happens is that the hair cells in the inner ear are damaged，but they're not dead，"says physician and ear specialist Dr．Sam Levine．According to Dr．Levine，if you avoid further exposure to loud noise，it's possible to   recondition  the cells somewhat．However，he adds，"Eventually，over a long period of time，hair cells are permanently damaged．"And this is no small problem．
    What sound level is dangerous？According to Dr．Levine，regular exposure to noise above 85decibels （分贝） is considered dangerous．The chart below offers a comparison of decibel levels to certain sounds．Here's another measurement you can use．If you're at a rock concert and the music is so loud that you have to shout to make yourself heard，you're at risk for hearing loss．That's when wearing protective devices such as earplugs becomes critical．
    The facts are pretty frightening．But are rock bands turning down the volume．'？Most aren't．"Rock music is supposed to be loud，"says drummer Andrew Sather．"I wouldn't have it any other way．And neither would the real fans of rock．"
    Continued exposure to loud music and the failure to wear earplugs can lead to deafness，according to Dr．Levine．He states，"There's no cure for hearing loss．Your ears are trying to tell you something．That ringing is the scream of your hair cells dying．Each time that happens，more and more damage is done．"
    Levels of Common Noises
    Normal conversation                            50-65dB
    Food blender                                  88dB
    Jet plane flying above a person standing outside      103dB
    Rock band during a concert                      110-140dB
    63．From Paragraph 1，we can learn thatA．
    A．loud music is a major cause of hearing loss
    B．famous people tend to have hearing problems
    C．teenagers should stay away from school bands
    D．the problem of hearing damage is widely known
    64．In Paragraph 3，the underlined word"recondition"meansD．
    A．not to be seen                      B．to fill with sound
    C．to become larger in size            D．to make good again
    65．The purpose of the chart at the end of the article is to showB．
    A．a list of harmful sounds
    B．the effect of rock concerts
    C．the noise levels of familiar sounds
    D．relationship between daily activities and hearing loss
    66．Which of the following statements will Dr．Sam Levine probably agree？C
    A．When your ears feel warm，your hair cells are dead．
    B．Drummer Andrew Sather gives good advice．
    C．Many are taking the risk of losing hearing．
    D．Doctors know how to cure hearing loss．

    分析 本文属于说明文阅读，作者通过这篇文章向我们介绍了嘈杂的音乐是听力丧失的主要原因，如果能及时避免，那么听力就会修复，但是如果继续使用，就会导致完全的失聪．

    解答 63．A  细节理解题：根据第一段的句子：Both men have hearing damage from exposure to loud music，and both now wear hearing aids as a consequence．可知嘈杂的音乐是使听力丧失的主要原因，故选A．
    64．D  词义猜测题：根据第三段的句子：According to Dr．Levine，if you avoid further exposure to loud noise，it's possible to   recondition  the cells somewhat．可知如果你能避免进一步暴露于嘈杂的音乐中，这些细胞是可能会被修复的，故选D．
    65．B  推理判断题：根据第四段的句子：regular exposure to noise above 85 decibels （分贝） is considered dangerous．以及表格里面的数字：Rock band during a concert110-140 dB可知最后的表格是为了向我们表明摇滚音乐会的影响，故选B．
    66．C  细节理解题：根据文章最后一段的句子：Continued exposure to loud music and the failure to wear earplugs can lead to deafness，可知Dr．Sam Levine可能会同意很多人有失去听力的危险这个观点，故选C．

    点评 考查学生的细节理解和推理判断能力．做细节理解题时一定要找到文章中的原句，和题干进行比较，再做出正确选择．在做推理判断题时不要以个人的主观想象代替文章的事实，要根据文章事实进行合乎逻辑的推理判断．

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        D．offered to change the tickets without any extra cost
    38．The underlined word"it"（Paragraph 3 ） refers toA．
        A．Locog                                B．the ticketing mistake
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        C.20，000．   D.30，000．
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