unit 7 saving energy 1 choose a b c or d to complete the following sentences 1 can you turn the light it’s too dark a on b off c in d for 2 what are you looking my picture book i’ve lost it a on

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<b>UNIT 7. SAVING ENERGY</b>

<b>1. Choose A, B, C or D to complete the following sentences:</b>
1. Can you turn ……….. the light? It’s too dark.

A. on B. off C. in D. for

2. What are you looking ………? . My picture book. I’ve lost it.

A. on B.off C. in D. for

3. There are ………. saving methods and inventions to use solar energy.

A. energetic B. energize C. energy D.

energetics

4. I had to pay much money this month for the international.

A. calls B. calling C. to call D. called

5. A new air – conditioner will be ………..this morning.

A. to install B. installed C. installing D. install
6. Scientists are looking for an ………. way to recude anergy consumption.

A. effect B. effection C. effective D.

effectively

7. We can ……….easily in the daylight.

A. to read B. reading C. readed D. read

8. She won’t take all these suitcases ……….. she likes to travel light.

A. so B. but C. because D. therefore

9. They are completely short of water now. A number od people have died
because of this………..

A. shortage B. short C. shorten D. shortly

10. What can we do to spend less ………..lighting?

A. in B. on C. about D. of

11. She is very tired; ………., she has to finish her homework.

A. moreover B. so C. and D. however

12. Is he an actor ……….. a singer? . An actor.

A. and B. or C. with D. so

13. He was tired, ………he took a rest before continuing the work.

A. so B. and C. but D. if

14. She forgot ………. off the gas before going out.

A. turn B. turning C. to turn D. turned

15. I suggest ………. money for the poor people in our neighborhood.

A. save B. to save C. saving D. saved

16.Who looks ……….. your children when you are away from home?

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17. Why doesn’t she go ……… with her university study?

A. in B. at C. to D. on

18. After coming home, she cleaned the floor……… cooked dinner.

A. but B. however C. moreover D.and

19. They didn’t understand the matter; ………, they didn’t ask for help.

A. but B. however C. moreover D.and

20. He got wet ………. He forgot his umbrella.

A. because of B. because C. but D. and

<b>2. Choose A, B, C or D to complete the passage:</b>

In humankind’s millions (1) ……… years (2) ……….Earth, many
types (3) ………energy resources have been utilized. However, (4) ………..
the last ninety years, petroleum has become (5) ………. far the most

important. Accounting (6) ……….. over 50 percent of all energy consumed,
it is so essential that, without petroleum, we could be faced (7) ………

economic disaster. Of course, the earth’s supply (8) ……… petroleum will
not last forever, and (9) ……….. fact, it will disappear sooner than most
people believe, (10)……… the current rate of consumption, the world’s
proven oil reserves may be exhausted within forty or fifty years.

1. A. to B. of C. in D. for

2. A. on B. in C. with D. of

3. A. of B. since C. for D. to

4. A. for B. of C. at D. in

5. A. in B. between C. by D. for

6. A. at B. for C. during D. in

7. A. on B. of C. with D. at

8. A. with B. to C. since D. of

9. A. on B. in C. for D. at

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