情态动词讲解和练习题附答案

情态动词

I.Grammar

1.定义：表示说话人情绪、态度或语气的词

go home now.

We had better

not go home

late. Had we

better go home

now?

e.g. Mary used to go to school by bike, but now she goes

to school by bus. Mary didn’t use to go to school by bus.

Did Mary use to go to school by bike?

II.E xercise

1.-- Must I finish all the homework this evening?

-- No, you . Tomorrow is Saturday, and you have enough

time for it. mustn't B、needn't C、won't D、can't

2.Y ou be late for school again next time.

A、mustn't

B、needn't

C、don't have to

D、can't

3.I can't leave. I stay here until she

comes back. A、has to B、have to C、

must to

4.H e be in the garden. He must be in the room.

A、mustn't

B、needn't

C、doesn't have to

D、can't

5.Y ou your hair once a month.

A、had better to cut

B、had

better cutting C、had better cut

D、had

better cutted

6.Y ou late next time.

A、had better not be

B、hadn't better be

C、have better not be

D、haven't better be

7.M r. Black go to work by bike before the underground was built?

A、Did; used to

B、Used; to

C、Did; use to

D、Does; use to

8.My father , but he gave it up two years ago.

A、used to smoke

B、uses to smoke

C、used to smoking

D、uses to smoking

情态动词

1.考查情态动词词义辨析。mustn't表示禁止，needn't表示不必，won't表示不会，can't表示不能。此处用must提问，否定回答使用needn't，故答案为B。句意：——今晚我必须做完所有的作业吗？——不，你不必。明天是周六，你有足够的时间完成。

2.考查情态动词词义辨析。mustn't表示禁止，needn't表示不必，have to表示不得不，can't表示不能。句意：你下次上学不准再迟到了。根据句意可知答案为A。

3.考查情态动词词义辨析。must表示必须，后面直接加动词原形；have to表示不得不。句意：我不能离开。我不得不待在这里直到她回来。根据本句主语为I 可知答案为B。

4.考查情态动词词义辨析。mustn't表示禁止，needn't表示不必，have to表示不得不，can't表示不可能。句意：他一定不在花园。他一定在房间。根据句意可知答案为D。

5.考查固定词组。“had better do sth.”表示最好做某事。故答案为C。句意：你最好一个月剪一次头发。

6.考查固定词组。“had better not do sth.”表示最好不做某事。故答案为A。句意：下次你最好别迟到。

7.考查固定词组。“used to do sth.”表示过去常常做某事。故答案为C。句意：在地铁建成之前，布莱克先生常常骑自行车上班吗？

8.考查固定词组。“used to do sth.”表示过去常常做某事。故答案为A。句意：我爸爸过去常常吸烟，但是两年前戒了。