南开大学14秋学期《大学英语(三)》在线作业答案.doc

14 ,1. ( )the tree( )down?A. Has. been choppedB. Has. been choppingC. Have. been choppedD. Have. been chopping?A2. C Everyone knows where the shop is, but whos the owner? C ( ).A. SteveB. Everyone doesC. At the next doorD. Yes, its a secret?A3. C Go that way and take a seat. C ( ).A. No, Im not tiredB. Thanks, but Id rather standC. Yes, thats a good wayD. It doesnt matter?B4. C Oh, the box is too heavy. C ( ).A. Whats in itB. Can I help you to carry itC. Whose is itD. May I have a try?B5. It was well known that Thomas Edison( )the electric lamp.A. inventedB. discoveredC. foundD. developed?A6. C Go that way and take a seat. C ( ).A. No, Im not tiredB. Thanks, but Id rather standC. Yes, thats a good wayD. It doesnt matter?B7. C Linda, can you give me a lift after work? C ( ).A. Its very kind of you to do soB. Thank you for your offerC. Never mind. Ill go shoppingD. No problem. We go the same direction?D8. This is the problem( )we have no good solution as yet.A. to thatB. whichC. for whichD. to which?D9. C Must we hand in our homework now? C ( ).A. Yes, you willB. Yes, you mustntC. No, you needntD. No, you mustnt?C10. Before she began to study at Beijing University, she( )in a factory for five years.A. had workedB. workedC. has workedD. would work?A11. His attitude toward us seems( ).A. nicelyB. warmlyC. kindlyD. friendly?D12. I have lived here( )1997.A. forB. sinceC. atD. after?B13. It( )that I met one of my old classmates on my way home yesterday.A. took placeB. occurredC. broke outD. happened?D14. Are trees( )along the road right now?A. plantB. plantingC. being plantedD. planted?C15. C What would you like, tea or coffee? C ( ).A. Yes, I wouldB. Coffee, pleaseC. Yes, pleaseD. Its very nice?B16. C Must I do the washing-up tonight? C ( ).A. No, you mustnt if you dont wantB. Leave it if youre exhaustedC. Washing-up is really exhaustingD. Washing-up really takes up time?B17. He was( )the preparation of an international conference when I arrived in Beijing.A. engaged toB. engaged forC. engaged onD. engaged in?D18. C Ed said that his boy fell off a tree. C ( ).A. Oh dear! I hope he wasnt hurtB. Oh, no. A lucky boyC. He might have broken his armD. Nothing serious?A19. Do you feel like( )today?A. having something eatenB. having something to eatC. to have something eatenD. to have something to eat?B20. He is looking forward( )his thesis.A. to writeB. to writingC. in writingD. on writing?B21. The population of the earth( )increasing fast. One third of the population here( ) workers.A. is; areB. is; has beenC. are; isD. is; was?A22. I saw she was in a difficulty with all those parcels, so I offered my( ).A. servicesB. moneyC. useD. chance?A23. C Excuse me, I didnt mean to bother you. C ( ).A. Theres no problemB. Its a pleasureC. Thats quite all rightD. I didnt realize that?C24. All the team members tried their best. We lost the game,( )_.A. howeverB. althoughC. butD. even though?A25. The big man has always been eating on the go,( )he has got stomachache.A. soB. howeverC. asD. because?A26. They are( )students that they all performed well in the nationwide examinations.A. so diligentB. such diligentC. so much diligentD. such very diligent?B27. C Nice weather, isnt it? C ( ).A. Im not sureB. You know it wellC. Yes, it isD. Yes, it isnt?C28. When a fire( )at the National Exhibition, at least ten priceless paintings were completely destroyed.A. broke offB. broke outC. broke downD. broke up?B29. C I havent seen Belly for 10 years. C ( ).A. Either have IB. Neither have IC. Havent ID. So have I?B30. C Do you know if the Andersons are still living there? C ( ).A. Yes, they doB. Yes, they areC. No, there arentD. No, they dont?B31. On his first sea( ), he was still quite young but showed great courage to face the storms.A. tripB. travelC. tourD. voyage?D32. C I wonder if you could help me. C ( ).A. I couldB. Yes, I doC. No, not at allD. Of course?D33. C Hello, could I speak to Don please? C ( )?A. Who are youB. Whats the problemC. Are you JaneD. Whos speaking?D34. He( )in the laboratory the whole morning.A. has been workingB. is workingC. was workingD. has worked?A35. C Are you feeling better today, Mrs. Silver? C ( ).A. Dont worry about meB. Just stay in bed and have a good restC. There must be something wrongD. Yes, thanks doctor. But I still feel dizzy?D36. C Why are you so late? C ( ).A. Its a shameB. I came across an old friendC. Never mindD. Thats all right?B37. C Well, Mary, how are you? C ( ).A. Im goodB. Im pleasedC. Im fineD. Im nice?C38. C I dont think Im late. Excuse me, whats the time? C ( ).A. It says 8:00. But its 5 minutes slowB. Im sorry Ive forgot the timeC. I was caught in the traffic jamD. Im sorry to keep you waiting?A39. C Is this the motel you mentioned? C ( ).A. It looks comfortableB. Yes, its as quiet as we expectedC. Youre so considerateD. No, the prices reasonable?B40. His parents will be( )him if he fails the examination.A. disappointing withB. disappointed onC. disappointed withD. disappointing for?C41. The bedroom needs( ).A. decoratingB. to decorateC. decorateD. decorated?A42. Jean could be a very attractive girl, but she( )to her clothes.A. pays no attentionB. was paying no attentionC. paid attentionD. had paid attention?A43. C Look, 25% off. The $2,500 camera is on sale today. C ( ).A. The camera is of high qualityB. Thats very kind of youC. My camera is out of order nowD. Yeah, a surprising bargain. Ill buy it?D44. C Is this the motel you mentioned? C ( ).A. It looks comfortableB. Yes, its as quiet as we expectedC. Youre so considerateD. No, the prices reasonable?B45. Mr. Smith