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（Four students are talking about the future after class.）

(    )41.It is the _______ Olympic Games in 2048.

              A.38th                       B.39th                   C.40th                   D.41st

(    )42.According to Liu Yuan, everyone will live a(n) _______ life.

              A.boring                    B.exciting              C.longer                 D.interesting

(    )43._______ 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

(    )44.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.

(    )45.From the talk, we can know that _______.

              A.people are still polluting the earth today

              B.the 50th 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

Pollution

    Hundreds of years ago, life was much harder than it is today. People didn’t have modern machines. There was no modern medicine, either.

    Life today has brought new problems. One of the biggest is pollution （污染）. Water pollution has made our rivers and lakes dirty. It kills our fish and polluted our drinking water. Noise pollution makes us talk louder and become angry more easily. Air pollution is the most serious kind of pollution. It’s bad to all living things in the world.

    Cars, planes and factories all pollute our air every day. Sometimes the polluted air is so thick that it is like a quilt over a city. This kind of quilt is called smog（煙霧）.

    Many countries are making rules to fight pollution. Factories must now clean their water before it is thrown away, they mustn’t blow dirty smoke into the air.

    We need to do many other things. We can put waste things in the dustbin and not throw it on the ground. We can go to work by bus or with our friends in the same car. If there are fewer people driving, there will be less pollution.

    Rules are not enough. Every person must help to fight pollution.

  1. Hundreds of years ago, life was much harder than it is today because _______.

    A. there were not any modern machines

    B. there was no modern medicine

    C. both A and B

    D. there were not many people

  2. What is the biggest problem in today’s life?

    A. Water pollution      B. Air pollution

    C. Noise                D. Pollution

  3. The most serious kind of pollution is ________.

    A. noise pollution      B. air pollution

    C. water pollution      D. A, B and C

  4. Factories must clean their water ________.

    A. before they are thrown away

    B. when they are thrown away

    C. after it is thrown away

    D. before it is thrown away

  5. From the passage we know that ________.

    A. a few years ago, there was no smog at all

    B. today people don’t have to talk to each other in a loud voice

    C. we can drink water from the polluted rivers and lakes’

    D. people are making rules in order to fight pollution