双基训练u3

Unit 3 Electricity双基训练

选择

( ) 1.Y ou get a bill ________ water, gas, electricity every month.

A. for

B. on

C. with

D. about

( ) 2. “Has _________ ever seen electricity?” Ben asked his Dad.

A. somebody

B. anybody

C. nobody

D. no one

( ) 3..Dad bought me a_________ of sweets as the prize.

A. pack

B. pocket

C. packet

D. pockets

( ) 4. There is going to _________ a concert tomorrow afternoon.

A. be

B. have C is D. has

( ) 5. We must not ____ the lights when we leave the room.

A. turn on

B. turn off

C. turn down

D. turn up

( ) 6.Water changes _________ ice when it is very cold.

A. into

B. in

C. for

D. to

( ) 7. At home, children must _______ fire without an adult.

A. be careful

B. be careful with

C. careful with

D. be careful of

( ) 8. --____ I have a look at your new pencil-box? --Y es, you _____.

A. May; must

B. May; may

C. Must; can

D. Can; must

( ) 9. –Must I finish this work now? --No, you _____. Y ou can give me tomorrow.

A. can’t

B. may not

C. mustn’t

D. needn’t

( ) 10. Do you know _____?

A. where does water come from

B. how do we make electricity

C. who’s looking foolish now

D. why is there grin on his face

词性变换：

1.The trees can protect themselves by ____________ a chemical that makes their leaves taste nasty. (produce)

2.I’m ____________ sorry about my being late, sir. (real)

3.Which is ____________, water or fire? (danger)

4.Would you like to get me some ____________? (battery)

5.Don’t always do such ____________ things. (fool)

6.The rice ____________ helps make rice quickly and easily. (cook)

7.Do you know it’s ____________ to ask a lady her age? (polite)

8.In the university, students may use ____________ calculators in maths exams. (electricity)

9.I have ____________ my suitcase already. (pack)

10.It’s much __________________ to play with fire than to play with water. (danger)

11.Y oung people usually have more ____________ than the old. (energetic)

12.Batteries ____________ packets of electricity. (call)

13.That hotel offers good ____________ to customers. (servant)

14.There’s thunder and ____________. It’s going to rain. (light)

15.It’s ____________ of you to believe him. (fool)

16.Can you give me a reasonable ____________ for your being late. (explain)

17.Miss Wang is our ____________ teacher. (chemist)

18.Modern Family is a popular ____________ magazine. (month)

19.Tom gave his teacher the ____________ for being late. (explain)

20.Please ask an electrician to repair the ______ appliances. Don’t do it by yourself. (electricity)

21.The fog became thinner. The ships became __________. (invisible)

22 We can ask a ____________ to help with the housework. (serve)

23.Jack used to communicate with his clients ____________. (polite)

24. Mr Wang ____________ the trouble to his wife just now. (explanation)

25.This road is ____________ to the airport. (connect)

26.Mr Brown gets his pay from his boss ____________. (month)

.

.改写句子：

1.There’s something interesting in this book. (否定句)

There __________ __________ interesting in this book.

2.He looks like a funny monkey. (划线提问)

__________ __________ he look like?

3.Is the woman our new teacher? I want to know.. (宾语从句)

I __________ __________ the woman is our new teacher.

4.Where does electricity come from? Do you know..? (宾语从句)

Do you know __________ electricity __________ from?

5.When shall we start our meeting? I don’t know… (宾语从句)

I don’t know __________ __________ __________ start our meeting.

6.Ken washes his hair four times a week. (一般疑问句)

__________ Ken __________ his hair four times a week?

7.Y ou get a bill for it monthly. (划线提问)

__________ __________ do you get a bill for it?

8.The couple usually talked to their son politely. (划线提问)

__________ __________ the couple usually talk to their son?

9.Where are we going next? I have forgotten it. (宾语从句)

I have forgotten __________ we __________ going next.

10.We call the thick wires cables. (被动语态)

The thick wires __________ __________ cables by us.

11.Please get me a packet of electricity. (句意不变)

Please __________ a packet of electricity __________ me.

12.I have kept this book since last Monday. (划线提问)