阅读下面短文，掌握其大意，从每题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
When I entered Berkeley, I hoped to earn a scholarship. Having been a Straight-A student, I believed I could __36__ tough subjects and really learn something. One such course was World Literature given by Professor Jayne. I was extremely interested in the ideas he 37 in class.
When I took the first exam, I was 38 to find a 77, C-plus, on my test paper, 39 English was my best subject. I went to Professor Jayne, who listened to my arguments but remained_ 40 .
I decided to try harder, although I didn’t know what that 41 because school had always been easy for me. I read the books more carefully, but got another 77. Again, I 42 with Professor Jayne. Again, he listened patiently but wouldn’t change his 43 .
One more test before the final exam. One more 44 to improve my grade. So I redoubled my efforts and, for the first time. 45 The meaning of the word “thorough”. But my 46__ did no good and everything 47 as before.
The last hurdle(障碍) was the final. No matter what 48 I got, it wouldn’t cancel three C-pluses. I might as well kiss the 49 goodbye.
I stopped working head. I felt I knew the course material as well as I ever would. The night before the final, I even 50 myself to a movie. The next day I decided for once I’d have 51__with a test.
A week later, I was surprised to find I got an A. I hurried into professor Jayne’s office. He 52__ to be expecting me. “If I gave you the As you 53 , you wouldn’t continue to work as hard.”
I stared at him. 54 That his analysis and strategy(策略) were correct. I had worked my head 55 , as I had never done before.
I was speechless when my course grade arrived: A-plus. It was the only A-plus given. The next year I received my scholarship. I’ve always remembered Professor Jayne’s lesson: you alone must set your own standard of excellence.
36. A. take B. discuss C. cover D. get
37. A. sought B. presented C. exchanged D. obtained
38. A. shocked B. worried C. scared D. anxious
39. A. but B. so C. for D. or
40. A. unchanged B. unpleasant C. unfriendly D. unmoved
41. A. reflected B. meant C. improved D. affected
42. A. quarreled B. reasoned C. bargained D. chatted
43. A. attitude B. mind C. plan D. view
44. A. choice B. step C. chance D. measure
45. A. memorized B. considered C. accepted D. learned
46. A. ambition B. confidence C. effort D. method
47. A. stayed B. went C. worked D. changed
48. A. grade B. answer C. lesson D. comment
49. A. scholarship B. course C. degree D. subject
50. A. helped B. favored C. treated D. relaxed
51. A. fun B. luck C. problems D. tricks.
52. A. happened B. proved C. pretended D. seemed
53. A. valued B. imagined C. expected D. welcomed
54. A. remembering B. guessing C. supposing D. realizing
55. A. out B. over C. on D. off
是虚线右方电路的等效电阻
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④，电流沿顺时针方向
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