上海牛津 8b unit 3

上海牛津 8b unit 3

Exercises for Chapter 3

I. Choose the best answer (选择最恰当的答案，用A、B、C或D表示，填入空格内。)

( ) 1. Benny is only seven, he doesn’t even know ____ electricity is.

A. why B. what C. which D. where

( ) 2. Electricity flows ____ a wire. It’s like water，in a way.

A. across B. through C. pass D. past

( ) 3. A: Can you get me a packet of electricity, please?

B: No, I ____.

A. mustn’t B. needn’t C. can’t D. couldn’t

( ) 4. Electricity is very dangerous. You must always ____ with it.

A. more careful B. be careful C. carefully D. are careful

( ) 5. There is ____ wrong with the computer. It doesn’t work.

A. anything B. nothing C. something D. some things

( ) 6. ____ he is only 8 years old, he knows more about science than his father.

A. But B. Because C. If D. Although

( ) 7. You get a bill ____ water, gas, electricity every month.

A. for B. on C. with D. about

( ) 8. These ____ thick wires that are buried under the streets.

A. connect to B. connect with C. are connected to D. are connected

( ) 9. A: ____ I put the meat in the fridge?

B: No, you ____ cover the meat first.

A. May, may B. Must, may C. Must, must D. May, must

( ) 10. Can you think ____ an example to show that you are right?

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

( ) 11. To save electricity, we ____ turn on more lights than we need.

A. couldn’t B. mustn’t C. needn’t D. may not

( ) 12. After a long way, we didn’t have ____ to play football.

A. electricity B. power C. heat D. energy

( ) 13. Do you know ____?

A. where does water come from B. how do we make electricity

C. who is looking foolish now D. why is there a grin on his face

( ) 14. I think electricity is ____ more dangerous than water.

A. much B. little C. many D. very

( ) 15. You should ____ do the work well.

A. be able to B. can C. must D. are able to

( ) 16. I have collected ____ information on how to save energy.

A. many B. a lot C. a number of D. huge amounts of

(

上海牛津 8b unit 3

____.

A. in this way B. in many ways C. in a way D. in the same way

( A. For a long time B. In the end

C. After a long time D. For the first time

( ) 19. Jenny looks really ____ these days because her father is in hospital.

A. happy B. sadly C. excited D. upset

( ) 20. Can you guess ____ the MP3 player last year?

A. how much did she pay for B. how much will she pay for

C. how much she will pay for D. how much she paid for

II. Complete the sentences with the given words box in their proper forms（用括号中所给

单词的适当形式完成下列句子）

1. What would happen if there is no __________. (electric)

2. This star is __________ to the naked eye (肉眼) because it’s too far away from the earth.

(visible)

3. Electricity is a good __________ (serve), but a __________ (danger) one.

4. How __________ I was to put my wallet on the top! Now it is missing. (fool)

5. “May I take your order?” the waiter asked __________. (polite)

6. We can get a bill for the amount of electricity we use __________. (month)

7. What’s the __________ between fiction books and non-fiction books? (different)

8. The camera needs two __________ to get the energy to work. (battery)

9. You’d better do your homework ___________. (careful)

10. He had no __________ for why he was late. (explain)

III. Rewrite the sentences as required（按要求改写句子，每空格限填一词）

1. Kitty has to do much homework on Sunday. (改为否定句)

Kitty __________ __________ to do much homework on Sunday. 划线提问)

__________ __________ did he spend cleaning the room?

3. Where does electricity come from? (改为宾语从句)

Do you know where __________ __________from?

4. “Will Betty come to our New Year’s party?” She asks. (改为宾语从句)

She asks __________ Betty __________ come to our New Year’s party.

5. Please tell me where I can buy the new bike. (改为简单句)

Please tell me where __________ __________ the new bike.

6. We should be careful with electricity. (改为同义句)

We __________ __________ be careful with electricity.

7. She could hardly understand this passage, ____ ____? (改为反意疑问句)

上海牛津 8b unit 3

She could hardly understand this passage, __________ __________?

8. He looks very funny with that pair of glasses on. (改为感叹句)

__________ __________ he looks with that pair of glasses on.

9. You are not allowed to get out while the typhoon is coming. (改为同义句)

You __________ __________ out while the typhoon is coming.

10. You needn’t pay for that phone call. (改为同义句)

You __________ __________ to pay for that phone call.

IV. Cloze Text:

A) Choose the words or expressions and complete the passage（选择最恰当的单词或词语，

完成短文. ）

The water and the land are thought part of the earth surface (表面). The air is usually thought a kind of blanket __1__ the earth. But it is more than that. Maybe you have been in a cave deep in the earth. Did you think about the air that was in the cave? The land has some air mixed in it. Air is even mixed __2__ the water in the sea. These examples show that som …… 此处隐藏：7410字，全部文档内容请下载后查看。喜欢就下载吧 ……