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 (腦) can understand.Exposure to loud noise can damage the tiny hairs and this causes hearing loss (損傷).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.a(chǎn)dvertisement
53.The underlined word"soundwaves"in Paragraph 3 meansC in Chinese.
A.聲速  
B.聲調(diào)  
C.聲波  
D.聲帶
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:這是一篇說(shuō)明文.主要介紹有多少人在火車上和公共汽車上大聲地聽(tīng)音樂(lè),時(shí)間長(zhǎng)了對(duì)耳朵會(huì)有危害的,甚至?xí)ヂ?tīng)力.所以用耳機(jī)聽(tīng)音樂(lè)時(shí),要確保它的聲音不足以讓其他人聽(tīng)到,否則一旦聽(tīng)力下降,就不會(huì)有回頭路了.

解答 52.答案:C.文章來(lái)源題.A新聞.B運(yùn)動(dòng).C科學(xué).D廣告.根據(jù)第三段第一句As we know,the ear has three parts-the outer part,the middle ear and the inner ear.我們知道,耳朵有三部分:外耳、中耳和內(nèi)耳.可知,本文主要講關(guān)于聽(tīng)力的問(wèn)題,因此應(yīng)該來(lái)源于科學(xué)部分.選C.
53.答案:C.詞意猜測(cè)題.根據(jù)上句There are tiny hairs in the inner ear.內(nèi)耳里有細(xì)小的毛.及"receive"接收,可知,實(shí)際上這些細(xì)小的毛是用來(lái)接收"聲波的",其它幾項(xiàng)都不能"接收",因此答案是C.
54.答案:B.細(xì)節(jié)理解題.根據(jù)倒數(shù)第二段You know you have been listening to loud music too long when you start hearing ringing noises in your ear.你知道當(dāng)你耳鳴時(shí),你已經(jīng)聽(tīng)太長(zhǎng)時(shí)間的音樂(lè)了.可知,耳鳴時(shí),應(yīng)該停止聽(tīng)嘈雜的音樂(lè).選B.
55.答案:A.細(xì)節(jié)理解題.根據(jù)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.所以在你下次用耳機(jī)聽(tīng)音樂(lè)時(shí),要確保它的聲音不足以讓其他人聽(tīng)到.可知,作者建議人們要正確使用耳機(jī).選A.

點(diǎn)評(píng) 閱讀題型,要注重句子與句子之間、段落與段落之間邏輯關(guān)系以及對(duì)篇章的整體理解.根據(jù)所給問(wèn)題選擇正確選項(xiàng)完成試題.

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