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More than two hundred years ago, the term “ enviromental polution” was quite strange to people. They lived healthily, drank (1) ________ water, and breathed fresh air. In those days, industry was not well- developed. Nowadays, the (2) ________ is quite different. The world today is faced with many (3) ________ threats. The most dangerous threat of all is war, and after the threat of war is (4) ________. People all over the world are worried about things that are happening to the environment. Actually, it is man that is (5) ________ the surroundings with many kinds of wastes from the devices that make human lives more comfortable and convenient. Everybody knows that cars emit dangerous gases that cause poisonous (6) ________ and cancer, but no one wants to travel on foot or by bicycles. Manufactures know that (7) ________ from factories make water and (8) ________ polluted, but they do not want to spend a lot of their money on (9) ________ the wastes safely. (10) ________ rubbish is bad for our health, but no one wants to spend time burying it. Is it worth talking a lot about polution?

1. A. fresh B. pure C. clean D. boiled

2. A. situation B. case C. circumstance D. occasion

3. A. chief B. significant C. major D. main

4. A. contamination B. polution C. dirtying D. poisoning

5. A. poisoning B. destroying C. dirtying D. contaminating

6. A. steam B. vapor C. air D. moisture

7. A. wastes B. junks C. garbage D. litters

8. A. land B. ground        C. soil D. earth

9. A. solving B. dealing C. processing D. treating

10.   A. throwing            B. scattering               C. distributing      D. pouring

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1 B

2 A

3 C

4 B

5 B

6 C

7 A

8 C

9 D

10 B