( ) 71.___thinks that people can spend their holidays on the moon in the future.

A. Deng Yu       B. Zhang Lan     C. Sun Wei      D. Liu Yuan

( ) 72. What does Zhang Lan think will happen in the future.

A. People will live in a world without wars.

B. Robots will do the things that people don't want to do.

C. People can talk with the spacemen.

D. There will be more pandas living happily in China.

( ) 73. The 40th Olympic Games will be hosted in______.

A. Paris     B. London     C. Beijing      D. Sydney

( ) 74. How old will Sun Wei be _____ by 2050?

A. 50     B. 60     C. 70       D .80

( ) 75.From the talk, we can know that_____.

A. people are still polluting the earth today

B. the 40th Olympic Games will take place in 2052

C. we will have the same food in 2050 as we do now

D. all the people will move to another planet in the future

D

In today's world, almost everyone knows that air pollution 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 who print news-papers and books, and who weave (织) 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 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.

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

( )76.The passage mainly tells us something about_____.

A. air pollution     B. water pollution   C. noise pollution     D. soil  pollution

( )77. Today scientists believe that____.

A. 90 percent of all the workers are free from any noise

B. 90 percent of all the workers in Britain are not suffering from noise

C. 10 percent of all the workers in Britain are working in noisy places

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

( )78. People who _____ become deaf easily.

A. don't print newspapers or books     B. make clothes

C. live far away from airports        D. none of the above

( )79. Recently many teenagers could hear no better than 65-year-old people in America, because______.

A. they all live near airports    B. their hearing is harmed by loud music

C. they are younger than the old people  D. their ears are still small

( )80. From the passage, we can infer (推断) that_____.

A. “pop” music is popular with old people

B. less than 85 decibels can cause deafness

C. a continuous noise of over 85 decibels can cause deafness

D. noise pollution is more serious than water pollution nowadays