1250] All the students _____ study hard for the country.

[译文] 所有的学生都应该为祖国努力学习。

　 A. have to 　 B. may

　 C. must 　 D. ought

[答案及简析] C。 must 表示主观的愿望和努力。

1249] There was plenty of time left, she _____.

[译文] 还剩下足够的时间，她根本没有必要那么忙。

　 A. have hurried 　 B. mustn’t have hurried

　 C. needn’t have hurried 　 D. couldn’t have hurried

[答案及简析] C。 情态动词加上完成时态表示对过去的推测。

1248] If I _____ you, I _____ go with him.

[译文] 如果我是你的话，我就不会和他一道去。

　 A. was; shall not 　 B. were; shan’t

　 C. were; wouldn’t 　 D. am; oughtn’t to

[答案及简析] C。 虚拟语气，与现在事实相反。

1247] As a teacher, one _____ know some good teaching methods.

[译文] 作为一个老师，他应该知道好的教学方法。

　 A. can 　 B. may

　 C. need 　 D. should

[答案及简析] D。 should 表示应该，应当。

1246] Johnny, you _____ play with the knife, you ______ your hurt yourself.

[译文] Johnny不许你玩小刀，你会伤着你自己的。

　 A. won’t; can’t 　 B. musn’t; may

　 C. shouldn’t; must 　 D. can’t; shouldn’t

[答案及简析] B。 mustn’t语气严厉，严禁之意； may表示也许会。

1245] What your Daddy said _____.

[译文] 你爸爸说的话应该引起你的重视。

　 A. should pay attention to 　 B. ought to be paied attention to

　 C. should be paid attention 　 D. ought to be paid attention

[答案及简析] B。 should应该，含有责备之意；ought to职责，义务。

1244] You _____ come here tomorrow, in fact, I will ask another two men to help me.

[译文] 你没有必要明天来，事实上我叫了其他两个人来帮助我。

　 A. needn’t 　 B. shouldn’t

　 C. mustn’t 　 D. can’t

[答案及简析] A。 need 必要；must 必须；should 应该，含有责备之意；can表示能力。

1243] The fire spread through the hotel very quickly but every one _____ get out.

[译文] 火很快地在旅馆中蔓延，然而每一个人都成功地逃出来了。

　 A. had to 　 B. would

　 C. was able to 　 D. could

[答案及简析] C。 can / could 只时表示有某种能力；be able to表示经过努力克服困难才做成某事情。

1242] My car has broken down. Would you help me _____.

[译文] 我的车坏了。清帮我发动一下好吗？

　 A. get to start the car 　 B. get the car start

　 C. to get the car started 　 D. to get the car to start

[答案及简析] D。 help sb. to do sth. = to help sb. to do sth.help后面的宾补中的不定式符号可以省略。

1241] -----Ought he to go home right now? ----- No, he _____.

[译文] --他应该马上回家吗？　　　--不，不必。

　 A. not ought 　 B. ought not

　 C. not ought to 　 D. ought not to

[答案及简析] D。 ought to的否定形式是把not放在中间。