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  In today's world, almost everyone knows that air pollution and water pollution are harmful to people. However, not all the persons know that noise is also a kind of pollution, and that is harmful to human beings, too.

  People who work and live under noisy conditions usually become deaf. Today, however, scientists believe that 10 percent 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(纺织)cloth become deaf. Recently it was discovered that many teenagers in America could hear no better than 65-year-old people, for these young like to listen topopmusic and most ofpopmusic 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.

  Nowadays the government in many countries have made laws to reduce or control noise and make it less than 85 decibels(分贝). In China, the people's government is trying to solve not only air and water pollution problems but also noise pollution problem.

(1)The passage mainly tells us something about __________.

[  ]

Aair pollution

Bwater pollution

Cnoise pollution

Dsoil pollution

(2)Today scientists believe that __________.

[  ]

A90 percent of all the workers are free from any noise

B90 percent of all the workers in Britain are not suffering from noise

C10 percent of all the workers in Britain are working in noisy places

Dthe hearing of 10 percent of all the workers in Britain is being deafened by the noise where they work

(3)People who ___________ become deaf easily.

[  ]

Adon't print newspapers or books

Bmake clothes

Clive far away from airports

Dnone of the above

(4)Recently many teenagers could hear no better than 65-year-old people in America, because ____________.

[  ]

Athey all live near airports

Btheir hearing is harmed by loud music

Cthey are younger than the old people

Dtheir ears are still small

(5)From the passage, we can infer that ____________.

[  ]

Apop music is popular with old people

Bless than 85 decibels can cause deafness

Ca continuous noise of over 85 decibels can cause deafness

Dnoise pollution is more serious than water pollution nowadays

答案:C;D;D;B;C
解析:

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