高中英语语法——情态动词总结(附带练习)

情态动词总结

I 情态动词的特征：

1.本身有词义。

2.不能独立作谓语。

2. 后接动词原形一起构成谓语。

3. 不随人称和数的变化。

II 情态动词各自的基本意义及用法：

II 情态动词表推测：

1.大多数情态动词（除表‘能力、许可、意志’外），都可以表示推测，其程度有差异。按可能性程度的高低排列为：must ﹥will ﹥would ﹥ought to ﹥should

完全肯定完全可能很可能

﹥can ﹥could﹥may ﹥might

可能有可能

2. 区分情态动词的否定含义：may not或许不、可能不might not可能不can’t 不可能《

mustn’t不许、禁止shouldn’t不应该needn’t 不必

3. 情态动词表推测具体运用：情态动词可以对现在、进行、过去推测。

III 情态动词表推测的反意疑问句

1.情态动词表推测的反意疑问句，简单来说，就是以情态动词后的时态为淮，如句子里有明确的时间状语，则以其为准。

2.以must 为例：

—

. 1. You must be hungry now, aren’t you

2. He must be watching TV , isn’t he

3 Tom must have lived her for a long time, hasn’t he

4. She must have arrived yesterday, didn’t she

注：如选择题中（以She must have arrived yesterday, didn’t she为例）既有didn’t she又有hasn’t she则以didn’t she为最佳答案。

IV 情态动词专项练习与解析一

( ) 1. You _____ return the book now. You can keep it till next week if you like.

、

A. can’t

B. mustn’t

C. needn’t

D. may not

( ) 2. Where is my pen I _____ it.

A. might lose

B. would have lost

C. should have lost

D. must have lost

( ) 3. I wish I _____ you yesterday.

A. seen

B. did see

C. had seen

D. were to see

( ) 4. I didn’t hear the phone. I _____ asleep.

A. must be

B. must have been

C. should be

D. should have been

;

( ) 5. If my lawyer _____ here last Saturday, he _____ me from going.

A. had been; would have prevented

B. had been; would prevent

C. were; would prevent

D. were; would have prevented

( ) 6. He _____ you more help, even though he was very busy.

A. might have given

B. might have

C. may have given

D. may give

( ) 7. If it _____ for the snow, we _____ the mountain yesterday.

A. were not; could have climbed

B. were not; could climb

C. had not been; could have climbed

D. had not been; could climb

|

( ) 8. Without electricity human life _____ quite difficult today.

A. is

B. will be

C. would have been

D. would be

( ) 9. A computer _____ think for itself, it must be told what to do.

A. can’t

B. couldn’t

C. may not

D. might not

( ) 10. Jenny _____ have kept her word. I wonder why she changed her mind.

A. must

B. should

C. need

D. would

( )11. We _____ last night, but we went to the concert instead.

A. must have studied

B. might study

》

C. should have studied

D. would study

( ) 12. — Could I borrow your dictionary

— Yes, of course you _____.

A. might

B. will

C. can

D. should

( ) 13. Tom ought not to _____ me your secret, but he meant no harm.

A. have told

B. tell

C. be telling

D. having told

( ) 14. — If he _____, he _____ that food.

— Luckily he was sent to the hospital immediately.

;

A. was warned; would not take

B. had been warned; would not have taken