国家开放大学软件学院理工英语4作业答案_已处理_1

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1. - China Mobile customer service. Good morning! Can I help you?
-_____________________

A. No, I don't need any help.

B. I pay the bill by traveler's check.

C. I have trouble in dialing the telephone.

2. - I get at least half an hour exercise of listening English every day.
-Terrific!_________________

A. Good luck!

B. Keep it up!

C. Cheer up!

3. - Good morning, Susan. Would you mind going to get me a cup of coffee?
-_________________

A. Thank you for reminding me.

B. You must be kidding.

C. No problem! You want the usual?

4. - Aren't you crazy about tennis? Why not sign up for it?
-_________________

A. It sounds attractive.

B. Come on!

C. You are just crazy.

5. - Aren't you crazy about tennis? Why not sign up for it?
-_________________

A. It sounds attractive.

B. Come on!

C. You are just crazy.

6. It's very smart ________ of such a terrific idea.

A. for your thinking

B. of you to think

C. of your thinking

7. Most cancer has no obvious early symptoms, ______ it is easy for it to escape diagnosis.

A. because

B. since

C. hence

8. In the UK professors have many other duties ________ teaching, such as research work or administration.

A. except

B. besides

C. except for

9. When she arrived, I felt a little angry, because I _________ since seven o'clock.

A. have been waited

B. had been waiting

C. were waiting

10. It was last Sunday ________ I met your elder brother at the school gate.

A. when

B. which

C. that

11. So little ________ about chemistry that the lecture was completely beyond me.

A. do I know

B. did I know

C. I did knew

12. Contraction should not be used in _______writing.

A. formal

B. familiar

C. former

13. The ________ why Space Shuttle Columbia exploded was not clear.

A. cause

B. reason

C. excuse

14. I like climbing mountains _______ my sister prefers water sports.

A. even though

B. now that

C. while

15. You can go to the university __________ you pass the entrance examination.

A. only if

B. although

C. as though

16. He used to be afraid of biochemistry but he has __________ that now.

A. gone through

B. got over

C. cut down

17. We trust this new machine of ours will ________ to your market.

A. appease

B. appear

C. appeal

18. Since the bus is overcrowded, we ________.

A. had better walk to home

B. had better to walk home

C. had better walk home

19. You ________ afraid of any difficulties. Be bold and overcome them.

A. need not to be

B. need not be

C. don't need

20. Tim can't _______ the maths problem he is working at.

A. count out

B. figure out

C. seek out