De cuong on tap hk2 tieng anh 9-3

UNIT 6: ENVIRONMENT
I. Choose the correct answer to fill in each blank.
One of the most serious problems (1) ………………. Human life is the dirtying and poisoning of air and water. It is the pollution of our environment. Air pollution (2) ………………….when wastes are poured into the atmosphere and the air becomes contaminated and unpleasant to (3) ………………….. We depend (4) …………….. life on the air we breathe. As the air becomes more (5) ………......................
More polluted, hazards to health increase. Today we have industrial air pollutants from factories and mills and engine – exhaust fumes. That’s (6) ………………….some large cities have to ban cars from the city centre to wipe out smoke and limit the emission of poisonous gases and dangerous chemicals from industrial smoke stacks in (7) ……………to clean the air in our living environment as much as
(8) ……………….
1. A threating B. threatened C. threatens D. threaten
2. A. occurs B. exits C. appears D. becomes
3. A. breath B. breathing C. breathe D. breaths
4. A. on B. for C. at D. but
5. A. or B. so C. and D. as
6. A. what B. how C. why D. who
7. A. order B. as C. so D. but
8. A. well B. long C. possible D. able
II. Choose the best answer A, B, C or D to complete each of the following sentences.

1.Mai is talking _____ because she has done her test perfectly.
A. happy B. happily C. unhappy D. unhappily.
2. If you________ do that exercise, I’ll explain for you.
A. can B. could C. can’t D. couldn’t
3. We can reduce air pollution by________ public buses instead of motorbikes.
A. using B. use C. used D. usage
4. Who will provide a picnic lunch__________ the volunteers?
A. with B. to C. on D. for
5. Mrs. Brown forgot her raincoat______ she got wet.
A. so B. however C. because D. if
6. Kate speaks English quite________ after three months learning.
A. good B. well C. perfect D. best
7. Tuan’s mother is very________ that he is doing his best at school.
A. please B. pleases C. pleasing D. pleased
8. Everyone must take part in______ deforestation.
A. prevent B. to prevent C. preventing D. prevented
9. We are talking about the preservation of ______________ resources.
A. nature B. natural C. naturally D. naturalize
10. The air in the city is very _________________.
A. pollute B. polluted C. pollution D. pollutant
11. A large number of inhabitants have made __________ on how to protect the environment.
A. suggest B. to suggest C. suggestion D. suggested
12. She stays at home because she has to take care of her baby.
A. look at B. look after C. look up D. look for
13. ________________believe that we should preserve the tropical rainforests in the world. A. Consumers B. Aliens C. Conservationists D. Tourists


III. Read the following passage and decide which option A, B, C, D best fits each space.
Everyone wants to reduce pollution. But the pollution problem is as complicated _________ (1) it is serious. It is complicated because much _________ (2) is caused by things that benefit people. For example, exhaust _________ (3) automobiles causes a large percentage of all air pollution. _________ (4) the automobiles provide transportation for millions of people. Factories _________ (5) much of the material which pollutes air and water, but factories give employment to a large number of people.
Thus, to _________ (6) or greatly reduce pollution immediately, people would have to stop using many things that benefit them. Most of the people do not want to do that, of course. But pollution can