閱讀下面短文，掌握其大意，然后從21-35各題所給的四個(gè)選項(xiàng)（A、B、C、D）中，選出最佳選項(xiàng)，并將答題卡上相應(yīng)題目的答案標(biāo)號涂黑。

When I entered Berkeley, I hoped to earn a scholarship. Having been a Straight-A student, I believed I could 　21 tough subjects and really learn something. One such course was World Literature given by Professor Jayne. I was extremely interested in the ideas he 　22 in class.

　　　 When I took the first exam, I was 　23 to find a 77 C-plus, on my test paper, but English was my best subject. I went to Professor Jayne, who listened to my arguments but remained unmoved.

　　　 I decided to try harder, although I didn’t know what that 　24 because school had always been easy for me. I read the books more carefully, but got another 77. Again, I 　25 with Professor Jayne. Again, he listened patiently but wouldn’t change his 　26 .

　　　 One more test before the final exam. One more 　27 to improve my grade. So I redoubled my efforts and, for the first time, 　28 the meaning of the word “thorough”. But my 　29 did no good and everything went as before.

　　　 The last hurdle was the final. No matter what 　30 I got, it wouldn’t cancel three C-pluses. I might as well kiss the 　31 goodbye.

　　　 I stopped working hard. I felt I knew the course material as well as I ever would. The night before the final, I even 　32 myself to a movie. The next day I decided for once I’d have fun with a test.

　　　 A week later, I was surprised to find I got an A. I hurried into Professor Jayne’s office. He 　33　 to be expecting me. “If I gave you the As you 　34 , you wouldn’t continue to work as hard.”

　　　 I stared at him, 　35 that his analysis and strategy were correct. I had worked my head off, 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.

21. A. take　　　　　　 B. discuss　　　　　　　C. cover　　　　　　　　　　　 D. get

22. A. sought　　　　　 B. presented　　　　　C. exchanged　　　　　　　 D. obtained

23. A. shocked　　　　B. worried　　　　　　 C. scared　　　　　　　　　　 D. anxious

24. A. reflected　　　　B. meant　　　　　　　　 C. improved　　　　　　　　 D. affected

25. A. quarreled　　　 B. reasoned　　　　　　 C. bargained　　　　　　　　 D. chatted

26. A. attitude　　　　　 B. mind　　　　　　　　　 C. plan　　　　　　　　　　　　 D. view

27. A. choice　　　　　　B. step　　　　　　　　　　 C. chance　　　　　　　　　　 D. measure

28. A. memorized　　　B. considered　　　　　C. accepted　　　　　　　　 D. learned

29. A. ambition　　　　 B. confidence　　　　　 C. effort　　　　　　　　　　　 D. method

30. A. grade　　　　　　 B. answer　　　　　　　　 C. lesson　　　　　　　　　　 D. comment

31. A. scholarship　　　B. course　　　　　　　　　C. degree　　　　　　　　　　 D. subject

32. A. helped　　　　　　 B. favored　　　　　　　　 C. treated　　　　　　　　　　 D. relaxed

33. A. happened　　　　 B. proved　　　　　　　　 C. pretended　　　　　　　　 D. seemed

34. A. valued　　　　　　　 B. imagined　　　　　　 C. expected　　　　　　　　 D. welcomed

35. A. remembering　　 B. guessing　　　　　　　 C. supposing　　　　　　　　 D. realizing