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REVISION: UNIT 6
I. MULTIPLE CHOICE

1. We’ll make this beach clean and ______________ again.

a. beauty b. beautiful c. beauty d. beautifully
2. We are going to collect all the bags and take them to the _________.

a. basket b. river c. garbage dump d. beach
3. To catch a lot of fish people began to use ________.

a. electricity b. net c. lure d.

landing net

4. We must do something to ________ the environment.

a. reduce b. pollute c. save d. protect

5. People will have no fresh water to use if the water is ________.

a. cut b. cleaned c. floated d. polluted

6. If you go on doing that, you will end ______ in serious trouble.

a. of b. up c. to d. at

7. Although many households use ________, their electricity bill is still enormous.
a. raw sewage b. rubbish bin c. oil spill d. energy-saving
bulbs

8. _____________ is destroying large areas of tropical rain forest.

a. Deforestation b. Innovation c. Environmentalist d. Plumber
9. Many people have _________ about the pollution air in the area surrounding
the factory.

a. cleared b. prevented c. complained d. discussed
10. You should clean _______ all the trash on the ground before leaving.

a. over b. out c. of d. up

11. By sticking labels over the address you can ________ envelopes.

a. reuse b. reduce c. return d. recycle

12. Why not _________ garbage bins around the school yard to keep it clean.

a. to put b. put c. putting d. we put

13. Plants ________ if they don’t get sun and water.

a. would die b. won’t die c. die d. are going

to die

14. I won’t be able to attend the meeting ___________ I’ll be on vacation.

a. if b. when c. since d. although

15. _______ oil is an irreplaceable natural resource, we must do whatever we

can in order to conserve it.

a. Since b. Although c. Because of d. Despite

16. The hat only partially protected his face _________ the sun.

a. of b. to c. against d . from

17.If the ______ continues, what will happen?

a. polluted b. pollution c. pollute d. unpolluted
18. The accident happened because of driving _________.

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a. kind b. kindly c. kindness d. unkind
20. We must do something to ________ the environment.

a. reduce b. pollute c. save d. protect

21. People will have no fresh water to use if the water is ________.

a. cut b. cleaned c. floated d. polluted

<i><b>II. Complete the sentences with because / as / since, if, unless, when, </b></i>
<i><b>or so:</b></i>

1) We decided to go out for a meal _____________ we had no food at home.
2) He has a very important job _____________ he is particularly well-paid.
3) Can I borrow that book _____________you've finished it?

4) You can't drive a car _____________ you've got a license.

5) No one was watching the television _____________ I switched the
television of.

6) _____________ she changed a lot, we didn't recognize her.
7) _____________ you're ready, we can start now.

8) I'm going away for a few days. I'll phone you _____________ I get back.
9) You should inform the police _____________ your bicycle is stolen.

10) Matthew went to bed _____________ it was too late to go out.

11) _____________ you drive Without driving license, you're breaking the law.
12) You won't learn to use a keyboard properly _____________ you practice.
<i><b>III. Fill in each blank with a correct preposition:</b></i>

1) The teacher divided the class _______ four groups.
2) He provided us _______ a lot of useful information.
3) The teacher gave _______ the exam papers.

4) I was disappointed _______ the grade I received on my last exam.
5) The ground is covered _______ trash. You should clear _______ all the
trash on the ground before leaving.

6) After several hours of discussion, the council finally agreed _______ a
plan.

7) My sister kept _______ asking me question after question.
8) The garage has got full _______ junk again.

9) We are all responsible _______ keeping the environment clean and clear.
10) Don't throw trash _______ the water because polluted water can directly
do harm _______ people's health.

<i><b>IV. Supply the correct forms of the words in parentheses: </b></i>

1) Some ________________ groups have declared a boycott of tourism on the
island. (environment)

2) People must learn about keeping the environment ________________. (pollute)
3) Jackson canceled the concert, to the great ________________ of his fans.
(disappoint)

4) She looked at the boys angrily and _________________.(kind)
5) My room was ________________decorated. (beauty)

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8) Solar energy can be used on ________________days. (cloud)

9) Exhaust fume and smoke are ________________to our health. (harm)
10)Recycled ________________are often sold at low price. (produce)

11)The air in the city is ________________( pollute)

12)Mum, we always need your ________________ (protect)
V.SENTENCE TRANSFORMATION

1) Recycle and we will save natural resources.
If ______________________________________

2) Be careful or you will fall over the rock.

If ______________________________________
3) Working too much you will be tired .
If _________________________________________
4) Don’t be careless or you will break the vase.
If _______________________________________

5) Nam will pass his exam, but he has to work hard.
If ___________________________________________

6. The train was late because it was foggy.

 Because of _____________________________________________________
7. The students can’t go to school because it is rainy.

 Because of _____________________________________________________
8. Nick is often punished because he is lazy.

 Because of ____________________________________________________
<i><b>9. I couldn’t do the test because it was difficult. </b></i>

 Because of ____________________________________________________
<i><b>10. Because he is strong, I’m afraid of him. </b></i>

 Because of ____________________________________________________
11. Because he disappears suddenly, everyone tries to find him.
 Because of _____________________________________________________
12. Because she behaves well, everyone loves her.

 Because of _____________________________________________________
13. The student can’t go to school because it is snowing thickly.

Because of ______________________________________________________
14. They win the game because they perform well.

Because of _______________________________________
<i><b>15. I didn’t accept the job because the salary was low.</b></i>

 Because of ______________________________________________________
<b>16.The plane couldn’t take of because the weather was bad. </b>

 Because of _______________________________________________________
17. We didn’t arrived until seven o’clock because the traffic was terrible.
 Because of _______________________________

<i><b>18. Because the students have an accident, they arrived late. </b></i>
Because of ______________________________________________________
19. John succeed in his exam because he worked hard.

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