In today’s world, almost everyone knows that air pollution and water pollution are harmful to people’s health. However, not all know that noise is also a kind of pollution, and that is harmful to human, too.
People who work and live under noisy conditions usually become deaf(耳聾的). Today, however, scientists believe that 10% of workers in Britain are deafened by the noise where they work. Many of the workers who print newspapers and books, and who weave 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 people, 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 plane 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 85 decibels（分貝） can cause deafness.
Nowadays the governments in many countries have made laws to reduce or control noise and make it less than 85 decibels. In China, the people’s government is trying to solve not only air and water pollution problems but also the noise pollution problems.
小題1:In the world today, not every person knows        .
A．water pollutionB．a(chǎn)ir pollutionC．harmful pollution D．noise pollution
小題2:Today scientists believe that       .
A．90% of all the workers in Britain are not suffering from noise
B．10% of all the workers in Britain are working in noisy places
C．10% of all the workers in Britain are deafened by the noise where they work.
D．90% of all the workers are free from any noise
小題3:Those who       usually have poorer hearing.
A．weave clothB．sell newspapers
C．like listening to musicD．often travel by plane
小題4:According to the passage, a continuous noise       can make you deaf.
A．in working places B．of less then 85 decibels
C．of over 85 decibelsD．of only 85 decibels

小題1:D
小題2:C
小題3:A
小題4:C

試題分析：本文是一篇說明文，說明了在今天的世界上，幾乎每個人都知道空氣污染和是污染對人們身體有害，然而，并不是所有人都知道噪聲污染也對身體有害，聲音超過85分貝，可以導(dǎo)致耳聾，所以在每個國家制定法律減少或控制噪音使它小于85分貝
小題1:細(xì)節(jié)題。由第一段最后一句However, not all know that noise is also a kind of pollution, and that is harmful to human, too可以知道答案，故選D。
小題2:細(xì)節(jié)題。由第二段第二行however, scientists believe that 10% of workers in Britain are deafened by the noise where they work.可以知道答案，故選C。
小題3:細(xì)節(jié)題。由第二段第三行Many of the workers who print newspapers and books, and who weave cloth become deaf.可以知道答案，故選A。
小題4:推理題。由第二段最后一句It is said that a continuous noise of over 85 decibels（分貝） can cause deafness.可以知道答案，故選C。
點評：本文采用總-分-總的結(jié)構(gòu)，第一段是全文的主旨，最后總結(jié)全文，閱讀此短文，首先注意第一段和最后一段，說明文、議論文類文章：文章的主題句往往出現(xiàn)在首段或末段。第一段給出作者的觀點或引出將要介紹的事物，而末段則總結(jié)全文、重申論點。因此，在閱讀議論文或說明文時，一定要注意首段或末段的信息，因為那通常就是文章的主題句
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