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1.Have you noticed the number of people listening to music very loudly on the trains and buses?Their music is so loud that you can even hear clearly what the singers are singing.The problem is that the music is coming out from their earphones!
Doctors warn young people about the dangers of listening to music from earphones so loudly for a long time.In the United States,studies show that musicians and people who work at performance halls have experienced hearing problems after exposure (暴露) to loud music for just up to 30 minutes a day.These people slowly lose their hearing and need to turn up the music even more loudly to hear it properly,possibly causing further damage to it.
As we know,the ear has three parts-the outer part,the middle ear and the inner ear.There are tiny hairs in the inner ear.It is the tiny hairs that receive the soundwaves and then change them into what the brain (脑) can understand.Exposure to loud noise can damage the tiny hairs and this causes hearing loss (损伤).Usually,this kind of hearing loss can be treated if the noise isn't very sudden and loud.Exposure to loud noise for too long a time can cause lasting damage.People with serious hearing loss may need to have an operation,but even after the operation they may not hear as well as before.
You know you have been listening to loud music too long when you start hearing ringing noises in your ear.They may be signs that the tiny hairs in your inner ear have been damaged.
So next time you listen to music using your earphones,make sure it is not loud enough for others to hear.Remember that once hearing loss sets in,there is no turning back.

52.We can probably read this passage in theC part of a newspaper.
A.news  
B.sports
C.science  
D.advertisement
53.The underlined word"soundwaves"in Paragraph 3 meansC in Chinese.
A.声速  
B.声调  
C.声波  
D.声带
54.When you hear ringing noises in your ear,it meansB.
A.your middle ear has been damaged
B.you must stop listening to loud music
C.your hearing loss can't be turned back
D.you need to have an operation on your ear
55.The writer of the passage is trying to advise people toA.
A.use earphones properly
B.listen to music in public
C.learn about hearing problems
D.understand three parts of the ear.

分析 文章大意:这是一篇说明文.主要介绍有多少人在火车上和公共汽车上大声地听音乐,时间长了对耳朵会有危害的,甚至会慢慢失去听力.所以用耳机听音乐时,要确保它的声音不足以让其他人听到,否则一旦听力下降,就不会有回头路了.

解答 52.答案:C.文章来源题.A新闻.B运动.C科学.D广告.根据第三段第一句As we know,the ear has three parts-the outer part,the middle ear and the inner ear.我们知道,耳朵有三部分:外耳、中耳和内耳.可知,本文主要讲关于听力的问题,因此应该来源于科学部分.选C.
53.答案:C.词意猜测题.根据上句There are tiny hairs in the inner ear.内耳里有细小的毛.及"receive"接收,可知,实际上这些细小的毛是用来接收"声波的",其它几项都不能"接收",因此答案是C.
54.答案:B.细节理解题.根据倒数第二段You know you have been listening to loud music too long when you start hearing ringing noises in your ear.你知道当你耳鸣时,你已经听太长时间的音乐了.可知,耳鸣时,应该停止听嘈杂的音乐.选B.
55.答案:A.细节理解题.根据最后一段So next time you listen to music using your earphones,make sure it is not loud enough for others to hear.所以在你下次用耳机听音乐时,要确保它的声音不足以让其他人听到.可知,作者建议人们要正确使用耳机.选A.

点评 阅读题型,要注重句子与句子之间、段落与段落之间逻辑关系以及对篇章的整体理解.根据所给问题选择正确选项完成试题.

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