(完整)小升初情态动词

小升初英语专项练习：情态动词

-、情态动词的定义：

情态动词有词义，但它不能单独作谓语，它必须和其他动词一起构成 谓语。情态动词没有人称和数的变化；它的后面必须跟动词原形。 二、情态动词的种类：

情态动词有 can (could), may, must, have to, shall (should), will (would), n eed 等，这些是小学阶段需掌握的情态动词。

三、情态动词的用法:

1）表示能力（体力、知识、技能）

box （体力）

能） 2）表示请求和允许。 Can I go now

Could \Ca n you help me ——Yes, of course.'Certai nly.\ Sure. Could \Can you tell me the way to the Zoo 3）表示推测（惊讶、怀疑、不相信的态度），用于疑问句、否定句和

Can you lift this heavy Mary can speak three Ian guages.

(知识) Can you skate (技

感叹句中

Can this be true This can' t be done by him. How can this be true

1)表示请求和允许。否定回答时可用can' t或mustn' t ,表示“不可以，禁止”。

——May I smoke in this room ——

No, you mustn ' t. —— May I take this book out of the room ——Yes, you can. （No, you can ' t / mustn ' t）

用May I...征徇对方许可时比较正式和客气，而用Can I… 在口语中更常见。

2 ）表示推测、可能性（不用于疑问句）。

1. He maybe very busy now. 2 . Your mother maynot know the truth.

3）用于祈使句，表示祝愿。May you succeed!

My sister is ill; my mother has to look after her. I had to work whe n I was your age.

注意：must的否定形式must n't表示禁止，意思是“不能，不许”。

在回答由must引起的疑问句时，如果是否定的，不能用must n't （禁止，不准），而用needn‘ t, don ' t have to （不必要）。

—— Must we hand in our exercise books today ---- Yes, you must.

No, you don' t have to / you needn ' t.

2) must表示推测、可能性(只用于肯定的陈述句)，意思为“一定是,必然........... ”。

1. You' re Tom s good friend, so you must know what he likes best.

2. Your mother must be wait ing for you now.

1) shall用于第一人称，征求对方的意见What shall we do

this eve ning 2） shall用于第二、三人称，表示说话人给对方的命令、警告、允诺或威胁。

1. You shall fail if you don ' t work hard.（警告）

2. He shall have the book whe n I fin ish it.（允诺）

3. He shall be pun ished.（威胁）

五、should和shouldn 't表示应该劝告、建议。

I should help her because she is in trouble.

You should go to class right away. She shouldn' t play computer games too much.

六、will （过去式would）

1）做助动词，表示一般将来时，将要

He will be home at six. Bob will leave school n ext month.

2）作为情态动词时表示“愿意”“意愿” “会”

I will help you. I will never do that again. Will / Would you pass me the ball, please

（一）根据所学情态动词，填写适当形式

1) ________ you like to go fishing with me

2) ________ I go homenow No, you _________ stay You _________ take more exercise.

4) The clock ______ tell us the time. 5) _______ you tell

me how to get to the Qingyun Park

6) My mother is ill. I _______ stay at home and look after

her.

7) ______ you like some tea 8) Must I borrow the book

with my ID card

No, you _______ . 9) __________ I use your car Yes, you

10) ______ we play football this afternoon

( 二) 按要求改写句子。

1. I can swim fast. I __________ _______ fast. ( 否定句)

2. You must return the books now. (一般疑问句) - _________ I the books now - No, you _______ .

3. They could take the books out of the room.

（否定句）They ________________ the books out of the room.

4. He can play basketball well. （一般疑问句） ________________ he _____ basketball well

5. You should get up early.（否定句） You _________ g et