10.In today's world,almost everyone knows that air pollution and water pollution are harmful to people's health.However,not all the persons know that noise is also a kind of pollution,and that is harmful to human health,too.
People who work and live under noisy conditions usually become deaf.Today,however,scientists believe that 10percent of workers in Britain are being deafened by the noise where they work.Many of the workers who print newspapers and books,and who weave(織) cloth become deaf.Quite a few people living near airports also become deaf.Recently it was discovered that many teenagers in America could hear no better than 65-year-old persons,for these young people like to listen to pop music and most of pop music is a kind of noise.Besides,noise produced by jet planes or machines will make people's life difficult and unpleasant,or even make people ill or even drive them mad.
It is said that a continuous noise of over 85decibels(分貝) can cause deafness.Now the governments in many countries have made laws to control noise and make it less than 85decibels.
In China,the government is trying to solve not only air and water pollution problems but also noise pollution problems

28.The passage is mainly aboutB.
A.a(chǎn)ir pollution     B.noise pollution      C.water pollution     D.world pollution
29.According to the passage,a continuous noise ofCdecibels can make people deaf.
A.less than 85      B.less than 65         C.more than 85       D.a(chǎn)bout 65
30.10percent of the workers in Britain are being deafened becauseD.
A.they are too busy to listen to others'talk    
B.they often listen to pop music
C.they live near airports                    
D.they are working in noisy places
31.The government of China is trying to reduceA.
A.the air,water and noise pollution        B.only the air and water pollution
C.only the water pollution                  D.only the air pollution.

分析 這篇文章描寫了噪音對身體有害以及各個國家的噪音污染情況.英國10%的工人正在變聾是因為他們在吵鬧的地方工作,美國的青少年據(jù)說聽力很差,是因為他們喜歡聽流行音樂以及中國政府正在減少空氣、水和噪音污染.

解答 28.B.:主旨題:根據(jù)第一段In today's world,almost everyone knows that air pollution and water pollution are harmful to people's health.However,not all the persons know that noise is also a kind of pollution,and that is harmful to human health,too.可知這篇文章主要講了噪音污染的問題,故選B.
29.C:細節(jié)題:根據(jù)倒數(shù)第二段It is said that a continuous noise of over 85 decibels(分貝) can cause deafness.可知持續(xù)超過85分貝的噪音會讓人耳聾,故選C.
30.D:細節(jié)題:根據(jù)第二段Today,however,scientists believe that 10 percent of workers in Britain are being deafened by the noise where they work.可知英國10%的工人正在變聾是因為他們在吵鬧的地方工作,故選D.
31.A:細節(jié)題:根據(jù)最后一段In China,the government is trying to solve not only air and water pollution problems but also noise pollution problems.可知中國政府正在減少空氣、水和噪音污染,故選A.

點評 本篇文章主要是細節(jié)理解方面的題型,需要考生通過跳讀迅速找到對應(yīng)的句子進行詳細理解,句子的理解可以結(jié)合上下文意思,通過邏輯推理得到.

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