北大15年春《大学英语1》在线作业四高分答案 1. - Is it possible for you to work late tonight? - _______ A. A. I like it. B. B. I'll do that. C. C. I'd love to. D. D. I think so. 答：D
2. - May I take your order now? - _________ A. A. No, I'm in trouble now. B. B. Yes, we take orders.
C. C. Yes, I'd like a dish of chicken. D. D. No, I don't have an order. 答：C
3. -- Shall we sit up here on the grass or down there near the water? -- ________ A. A. I'd rather stay here if you don't mind. B. B. Sorry, I don't like neither. C. C. Certainly, why not?
D. D. Yes, we like these two places. 答：A
4. - What can I do for you, madam? - ______________ A. A. Thank you. B. B. You can't help me. C. C. I want to buy a camera. D. D. I'm glad to hear that. 答：C
5. - Why didn’t you come to my birthday party yesterday?- ________ A. A. Excuse me, my friend sent me a flower.
B. B. Fine, I never go to birthday parties. C. C. Ha…ha, I like swimming.
D. D. Sorry, but my wife had a car accident. 答：D
6. - Thank you for inviting me.- _______ A. A. I really had a happy time. B. B. Oh, it's too late. C. C. Thank you for coming. D. D. Oh, so slowly? 答：C
7. -- How do you do? Glad to meet you.-- _________ A. A. Fine. How are you?
B. B. How do you do? Glad to meet you, too. C. C. How are you? Thank you! D. D. Nice. How are you? 答：B
8. -- Hi, is Mary there, please?-- _____ A. A. Hold on. I'll get her. B. B. No, she isn't here. C. C. Yes, she lives here. D. D. Yes, what do you want? 答：A
9. - May I borrow your umbrella for a moment?-- ______________. A. A. No, you can't do it B. B. Sorry, but you may not
C. C. Well, I am afraid I am going to use it myself D. D. Of course not. I'm going to need it myself
答：C
10. -_____________-Very well, thank you. And you? A. A. Good night. B. B. How do you do？ C. C. How do you like Chinese？ D. D. How are you？ 答：D
11. I gave Grace a present but she gave me nothing ________. A. A. in return B. B. in turn C. C. in advance D. D. in short 答：A
12. I didn’t know what to do, but then an idea suddenly ________ to me. A. A. appeared B. B. happened C. C. occurred D. D. emerged 答：C
13. The explorers sailed on the ocean for two weeks and ________ found the mysterious land.
A. A. generally B. B. eventually C. C. extremely D. D. gradually 答：B
14. He asked the waiter ________ the bill.
A. A. on B. B. of C. C. for D. D. after 答：C
15. This boy is able to repeat from memory ______ 200 short poems. A. A. up to B. B. up till C. C. as to D. D. as far 答：A
16. It is said that the best time to visit the city is June or July, ________ the South American winter cools the city. A. A. where B. B. which C. C. on which D. D. when 答：D
17. I am not used to speaking ________ public. A. A. in B. B. at C. C. on D. D. to 答：A
18. I don’t know _______ to deal with such matter. A. A. what B. B. how
C. C. which D. D. / 答：B
19. Never before _______ see such a terrible car accident on the road! A. A. I have B. B. have I C. C. I did D. D. did I 答：D
20. Tom, what did you do with my documents? I have never seen such a _____ and disorder! A. A. mass B. B. mess C. C. guess D. D. bus 答：B
21. What makes a person a scientist? Does he have ways or tools of learning that are different from those of others? The answer is “no”. It is not the tools a scientist uses but how he uses these tools that makes him a scientist. You will probably agree that knowing how to use a power is important to a carpenter. You will probably agree, too, that knowing how to investigate, how to discover information, is important to everyone. The scientist, however, goes one step further, he must be sure that he has a reasonable answer to his questions and that his answer can be confirmed by other persons. He also works to fit the answers he gets to many questions into a large set of ideasabout how the world works. The scientist’s knowledge must be exact. There is no room for half right or right just half the time. He must be as nearly right as the conditions permit. What works under one set of conditions at one time must work under the same conditions at other times. If the