单项选择题：在牙体修复后造成充填体折断或脱落的原因是（） A.未使用垫底材料 B.未使用洞衬材料

题型：单项选择题

第二节：完形填空（共20小题；每小题l.5分，满分30分）

阅读下面短文，掌握其大意，然后从36－55各题所给的四个选项(A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。

Some people are lucky enough to be born with a good sense of direction and even if they have only visited a place once, they will be able to find it again years later. I am one of those unfortunate people who have 36 sense of direction and I may have visited a place time after time but I still get 37 on my way there. When I was young I was so 38 that I never dared ask strangers the way and so I used to 39 round in circles and hope that I would happen to get to the place I was heading for. I am 40 too shy to ask people for directions, but I often 41 replies that puzzle me. Often people do not like to admit that they didn’t know their hometown and will 42 on telling you the way, even if they do not know it ; others who are 43 to prove that they know their hometown very well, will give you a long 44 of directions which you cannot possibly hope to remember, and still others do not seem to be able to 45 between their left and their right and you find in the end that you are going in the 46 direction. If anyone ever asks me the way to somewhere, I always tell them I am a 47 to the town in order to avoid giving them wrong 48 but even this can have embarrassing (尴尬的) results. Once I was on my way to work when I was stopped by a man who asked me if I would 49 him the way to the Sunlight Building. I gave my 50 reply, but I had not walked on a few steps when I 51 that he had asked for directions to my office building. However, at this point, I decided it was too late to turn back and 52 him in the crowd behind me 53 I was going to meet with someone at the office and I did not want to keep him waiting. Imagine my embarrassment when my secretary showed in the 54 man who had asked for directions to my office and his 55 when he recognized me as the person he had asked.

36. A. good B. instant C. poor D. fine

37. A. lost B. disappeared C. stuck D. missing

38. A. brave B. nervous C. afraid D. shy

39. A. come B. show C. look D. wander

40. A. still B. no longer C. any more D. often

41. A. receive B. accept C. give D. import

42. A. advise B. suggest C. insist D. persuade

43. A. glad B. anxious C. interested D. angry

44. A. line B. list C. page D. paragraph

45. A. say B. know C. divide D. tell

46. A. right B. same C. other D. opposite

47. A. friend B. policeman C. stranger D. foreigner

48. A. direction B. advice C. answer D. road

49. A. direct B. tell C. take D. point

50. A. similar B. common C. usual D. general

51. A. noticed B. realized C. believed D. considered

52. A. look B. find C. discover D. search

53. A. when B. then C. while D. as

54. A. only B. certain C. very D. just

55. A. astonishment B. excitement C. judgment D. embarrassment

查看答案

在牙体修复后造成充填体折断或脱落的原因是（） A.未使用垫底材料 B.未使用洞衬材料

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