Unit7

UNIT 7 SAVING ENERGY
I. Choose the best answer a, b, c or d.
1) Oh dear! How …………..our household bills are ! we can’t pay them.
a. heavy b. enormous c. small d. low
2) In winter, heating…………………for 50 per cent of our electricity bill.
a. takes b. occupies c. accounts d. costs
3) Energy can be collected by solar……………..on cloudy days.
a. boards b. panels c. bars d. sheets
4) If we don’t find…………sources of power, we will use up all the fossil fuels in the near future.
a. effective b. efficient c. natural d. alternative
5) Who ……………..your house when you are away from home.
a. looks on b. looks in c. looks after d. looks at
6) There’s nothing good on TV. Why don’t you turn it…………?
a. on b. at c. off d. down
7) A ( An ) ………….. installs and repairs things such as water pipes, toilets, etc.
a. alien b. plumber c. poet d. engineer
8) Energy- saving bulbs should be used to………….electricity.
a. save b. help c. cost d. spend
9) We should use energy- saving bulbs to ………….the amount of electricity we use.
a. reduce b. replace c. collect d. provide
10) Why don’t you…………….with your university study?
a. go in b. go at c. go by d. go on
11) Na is very tired……………., she has to finish her homework before she goes to bed.
a. if b. so c. however d. therefore
12) Hoa failed her math test…………………………...,she has to do the test again.
a. however b. but c. although d. therefore
13) We suggested …………………the light bulb. It is broken.
a. replace b. to replace c. replacing d. replaced
14) Mary suggested that they……………………….together.
a. went b. goes c. should go d. will go
15) It is ………………….that we have our hair cut at that hairdresser’s.
a. suggestion b. suggesting c. suggested d. suggest
II. Rewrite the following sentences without changing meaning.
1. What about buying energy-saving bulbs?
Shall ------------------------------------------------------------------------------------------------
2. Let’s protest against the use of nuclear power.
Why-------------------------------------------------------------------------------------------------
3. What about organizing a charity event to raise money.
I suggest we----------------------------------------------------------------------------------------
4. Why don’t we take a short rest ?
I suggest--------------------------------------------------------------------------------------------
5. Let’s use electricity economically.
We suggest-----------------------------------------------------------------------------------------
6. Although she was not beautiful, she took part in a beauty contest.
She was not ----------------------------------------------------------------------------------------
7. It was raining so we decided to postpone our camping.
Since------------------------------------------------------------------------------------------------
8. We stayed at home because it rained heavily.
It rained-----------------------------------------------------------------------------------------
9. She couldn’t join us because she was busy.
She was --------------------------------------------------------------------------------------------
10. They requested we leave the place at once.
It was -----------------------------------------------------------------------------------------------
III. Complete the sentences with the correct connectives.
1) She can’t speak French……………..she can’t write well. ( and/ but)
2) She isn’t English…………………….., she speaks English perfectly. ( However/ But )
3) Both the driver………………….the passenger were injured in the accident. ( and/ or )
4) He studied hard,………………. he got good marks. ( so/ because )
5) Hoa didn’t study hard………………………, she failed the test. ( Therefore/ Because )
IV. Combine each pair of sentences using so, but, because or and.
1) He was thirty. He drank a lot of water.
………………………………………………………………………….
2) He was intelligent. His father was worried about his performance.
………………………………………………………………………….
3) It rained. We decided to postpone the picnic.
………………………………………………………………………….
4) We stayed at home. We watched TV.
………………………………………………………………………….
5) She passed the exam. She studied hard.
………………………………………………………………………….
V. Fill in each space with an appropriate word from the box.
Shortage, enormous, nuclear power, energy-saving, necessities,
1) The factory is producing……………….bulbs. They save a lot of energy.
2) He has an……………..amount of money after winning the lottery.
3) In western countries, electricity, gas, water are not luxuries but ………………
4) Most of our electricity now comes from