第二节 完形填空(共20小题，每小题1.5分，满分30分)
阅读下面短文，掌握大意，然后从36－55各小题所给四个选项(A、B、C、D)中，选出最佳选项，并在答题卡上将该项涂黑。
Not long ago, someone asked the dad of a young pop star what his son would have done if he hadn’t become a singer. The father said he had 36 considered anything else. This was his Plan A. There had been no Plan B. I 37 this to my son Marty, who was studying musical theater at college,when he was thinking about a second 38 in business or teaching.
“Just study what you’re interested in ,” I said.
“But what if I can’t 39 it?” he asked.
“It’ll still be worth it.” I answered.
My friends think I’m 40 . They’ve advised their own children to 41 something they think will bring them financial rewards, ___42 they don’t love it. “Times are hard: get your son into something that can 43 a good job.” A friend told me.
Of course I understand their 44 , and want to protect my son. But why should he 45
his “best years” studying things that hardly hold his 46 ? Is that really a wise use of his
47 ? I think fear leads nowhere, while enthusiasm can lead anywhere.
The wisest parents are the ones who 48 their children toward the things that already interest them. It’s 49 that sometimes such parents will feel afraid. When Marty stepped into the extraordinarily 50 field of performance, I was worried about his future. Yet I have watched him grow. I have witnessed the 51 he has made to run after his dream, and how much he has enjoyed the 52 .
It may be that my son will 53 because of dreaming big. But I believe that seeking one’s own dream is one’s only real chance of happiness. I’d rather he 54 than hung back.（退缩）.
As he 55 his choices, my best advice to him is: Risk everything. Plan B, C, D and E will always be there. Grasp Plan A.
36. A. still B.never C. ever D. yet
37. A. refused B. promised C. mentioned D. complained
38. A. major B. career C. experiment D. skill
39. A.try B. finish C. make D. seize
40. A. considerate B. wise C. unusual D. crazy
41. A. absorb B.seek C. realize D.overcome
42. A.as if B. in case C. even if D. now that
43. A. refer to B. lead to C. belong to D. adapt to
44. A.concern B. humor C.judgement D. favor
45. A. keep B. offer C. spend D. take
46. A. opinion B.interest 
C. personality D. identity
47. A. energy B. money C. time D. mind
48. A.direct B. follow C. signal D. command
49. A.impossible B.certain C. embarrassing D. rough
50. A.magical B. competitive C. traditional D.fantastic
51. A. effort B.appointment C. decision D. effect
52. A. experiment B.process C. course D.practice
53. A. operate B. suffer C. enjoy D. perform
54. A. went ahead B. sped up C.look forward D. started over
55. A. designs B.rejects C. evaluates D. weighs
，t=0时闭合开关S后，
为下列哪项（）。