通读下面的短文，掌握其大意，然后从A、B、C、D四个选项中选出一个最佳选项。

Many teenagers have hobbies. But sometimes these hobbies can get in the way of schoolwork, and parents 　41　 worry about their child’s 　42　 　at school. Teenagers often think they should be allowed to practice their hobbies as much __43　 　they want. Do you agree?

　 Liu Yu, a fifteen-year-old boy from Shandong, is a running star. He is 　44　 　　his school running team and has always wanted to be a professional athlete.　 45　 　, his parents won’t allow him to train as much as he would like to. “Of course we want to see Liu Yu 　46　 his dreams,” says Mr. Liu, “and we know how　 　47　 　he loves running. That’s great, and my wife and I have watched him in every one of his races. We have nothing against 　48　 ! But we do think　 　49 our son needs to be realistic. Now he is getting older, he needs to think about 　50　 　will happen if he _51 　become a professional runner in the end .”

　 Liu Yu doesn’t really agree. “Well, I think I should be allowed to make decision for myself,” he says. “My parents have always taught me the importance of working hard and not just to do what I enjoy. I understand this. But I’m serious about running. 　52　 　a professional runner is the only thing I have ever wanted to do.”

　 Mr. And Mrs. believe that Liu Yu should study hard in the evenings, and so they don’t allow him to practice 　53　 on school nights. “I know this might seem strict,” says Mrs. Liu, “but we think we’re doing the right thing. He has to understand that very 　54　 　people can become professional athletes. It’s very difficult dream to achieve. We don’t allow him to practice every day because we think he needs to spend time on his homework.”

　 But Liu Yu doesn’t agree. “I know my parents care about me,” he says. “But they are always talking about what will happen if I don’t succeed. But I will succeed! I think I should be allowed to make this decision for myself. Only then 　55　 　have a chance of achieving my dream.”

41.(　　 )A. could　　　 B. must　　　　 C. should　　　　 D. would

42.(　　 )A. succeed　　 B. success　　　 C. successful　　 D. successfully

43.(　　 )A. so　　　　　 B.but　　　　 C. that　　　　　 D. as

44.(　　 )A. in　　　　　 B. at　　　　　 C. on　　　　　 D.under

45.(　　 )A. However　　 B. But　　　　 　C. Though　　　 D.because

46.(　　 )A. to achieve　 B. achieve　　　 C. achieving　　　 D.achievement

47.(　　 )A. many　　　 B. long　　　　 C. soon　　　　　 D. much

48.(　　 )A. running　　　 B. run　　　　 C. to run　　　　 D.runing

49.(　　 )A. what　　　　 B. which　　　 C.when　　　　　 D. that

50.(　　 )A. How　　　　 B. when　　　　 C. what　　　　　 D.that

51.(　　 )A. won’t　　　 B. don’t　　　　 C. can’t　　　　　 D. doesn’t

52.(　　 )A. Are　　　　 B. Is　　　　　 C. Being　　　　　 D.was

53.(　　 )A. to run　　 　B. running　　　 C. runs　　　　　 D.run

54.(　　 )A. little　　　　 B. few　　　　 C. a few　　　　　 D.a little

55.(　　 )A. do I　　　　 B. I will　　　　 C. will I　　　　　 D.I do

40.(　　 )--I’m afraid that the plane might crash.

　　　 --________.

A.Don’t be silly　 B.Have a safe trip　　 C.There it is　　 D.That’s OK

39.(　　 )--That’s my flight!Goodbye,everyone!

　--Byebye!_______.

A.So do I　　　　 B.Stay in touch　　　 C.There it is　　 D.Thanks

38.(　　 )He didn’t know______ when his mother wasn’t at home.

A.What should he do　　　　　　　　　　　　　　　　　 B.how should he do

C.what to do　　　　　　　　　　　 D.how to do

37.(　　 )It’s _____ great fun. There are ____ many wonderful things too.

Asuch;such　　　　　　　 B.so;so　　　　 C.so;such　　　 D.such;so

36.(　　 )____or your father will be angry with you.

A.Take a plane　　　　 　　　　 B.read loudly　　　　　　　　　　 　 　

　　　 C.Don’t close the door　　　　 D.Don’t make a noise

35.(　　 )We went to the train station and saw our friends______.

A.on　　　　　　　　 B.out　 　　　　C.off　　　　　　 D.over

34.(　　 )-I’d love to go to Italy.--______.

A.So do I　　　　 B.So am I　　　　　her am I　　 D.So would I

33.(　　 )I _____ have two wings and then fly to the moon.

A.would　　　　　　　　　 B.could　　　　　 C.should　　　　 D.might