1.I didn’t hear the phone.I________ asleep.

1.I didn’t hear the phone.I________ asleep.
A.must be B.must have been
C.should be D.should have been
2.We ________ last night,but we went to the concert instead.
A.must have studied B.might study
C.should have studied D.would study
3.John,you________ play with the knife,you________hurt yourself.
A.won’t;can’t B.mustn’t;may
C.shouldn’t;must D.can’t;shouldn’t
4.It’s nearly seven o’clock.Jack________ be here at any moment.
A.must B.need C.should D.can
5.She________for what she has done,but why do you keep silent on it?
A.ought to praise B.ought to have praised
C.ought to be praised D.ought to have been praised
6.If your boss is not right,you________him.
A.mustn’t obey B.don’t have to obey
C.wouldn’t have obey D.can’t have obey
7.—Shall I call a doctor for you?
— ________.I will be better soon.
A.Yes,you may B.No,you mustn’t
C.No,you needn’t D.I’d rather not
8.—Would you like to go shopping with me tonight?
—________.
A.I’d love so B.I’ll like to
C.I would like that D.I’d love to
9.He________ you more help,even though he was very busy.
A.might have given B.might
C.may have given D.may give
10.Noise________ harmful in China.
A.didn’t use to be considered B.usedn’t to consider
C.didn’t use to consider D.isn’t used to be considered

1.I didn’t hear the phone.I________ asleep.
A.must be B.must have been
C.should be D.should have been
【答案】B.本题考查的是情态动词MUST+have done表示对过去事情的肯定猜测.句子的意思是：我刚才么有听到电话声,我刚才一定是睡着了.
2.We ________ last night,but we went to the concert instead.
A.must have studied B.might study
C.should have studied D.would study
【答案】C.本题考查的是情态动词should+have done表示本来应该做某事,却没有做.表示后悔和自责.句子的意思是：我们昨晚本来是应该学习的,但是我们却跑去听音乐会去了.
3.John,you________ play with the knife,you________hurt yourself.
A.won’t;can’t B.mustn’t;may
C.shouldn’t;must D.can’t;shouldn’t
【答案】B.本题考查的是情态动词的一般用法.第一个横杠的mustn't表示禁止某人做某事,解释为“不许”；第二个横杠的may表示猜测,解释为“也许”.句子的意思是：约翰,不准玩餐刀,你也许会伤到你自己的.
4.It’s nearly seven o’clock.Jack________ be here at any moment.
A.must B.need C.should D.can
【答案】C.考查的是should这个情态动词的应用,解释为“应该”,表示说话者个人主观的看法.
5.She________for what she has done,but why do you keep silent on it?
A.ought to praise B.ought to have praised
C.ought to be praised D.ought to have been praised
【答案】D.ought to have been praised 表示本来是应该被表扬,却没有被表扬.表示说话者的不满.句子意思是：她本来应该可以为自己所做的事情受到表扬的.你当时为什么却保持沉默（不表扬她）呢?
6.If your boss is not right,you________him.
A.mustn’t obey B.don’t have to obey
C.wouldn’t have obey D.can’t have obey
【答案】B.don't have to do=needn't to do,表示不需要做某事,句子的意思是:如果你老板是不对的,你就不需要服从他.
7.—Shall I call a doctor for you?
— ________.I will be better soon.
A.Yes,you may B.No,you mustn’t
C.No,you needn’t D.I’d rather not
【答案】C.当情态动词shall、must提问一般疑问句时,肯定回答是：yes,you must.否定回答是：No,you needn't 或者是no,you don't have to.
8.—Would you like to go shopping with me tonight?
—________.
A.I’d love so B.I’ll like to
C.I would like that D.I’d love to
【答案】D.这句话是省略句,完全形式是：I would love to go shopping with you tonight.为了避免重复,把相同部分"go shopping with you tonight"省略了.
9.He________ you more help,even though he was very busy.
A.might have given B.might
C.may have given D.may give
【答案】C.本题考查的是must/may/might+have done表示对过去情况的肯定猜测.由于句子后面已经有提示说“尽管他那时很忙”,由此确定是对过去情况的猜测.同时,may 表示猜测时的肯定语气要比Might要强烈,所以选择C.句子解释为：尽管当时他很忙,他也许还是可以给你更多帮助的.
10.Noise________ harmful in China.
A.didn’t use to be considered B.usedn’t to consider
C.didn’t use to consider D.isn’t used to be considered
【答案】A.此题考查的是半情态动词used to的否定形式.这个词的否定形式有两种,一种是didn't used to ,另一种是usedn't to.由于主语是noise,与consider形成被动关系,因此答案为A,而不是C.