Unit 7 Grammar 知识点整理及练习1：情态动词 2020-2021学年牛津译林版英语七年级下册(含答案)

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Grammar

情态动词 can,could,may 的用法

1.can 和could 可以用来谈论主语所具备的能力，意为“能；会”。can 表示主语现在所具备

的能力，常和表示现在的时间状语连用；could 表示主语过去所具备的能力，常和表示过去

的时间状语连用。

He can speak three languages.

他会说三种语言。

I could play the guitar at the age of ten.

我十岁时会弹吉他。

2.情态动词 can, could 和may 都有表示“许可”的意思。could 语气更委婉，比 can 表达更

有礼貌。may 则使用在比较正式的场合。

Can you recommend a good hotel?

你能推荐一家好的饭店吗？

Could you help me change the bed?

你帮我换一下床单好吗？

May I borrow your newspaper?

把你的报纸借我看行吗？

[拓展]3.may 和might 表示请求时，用于主语为第一人称的一般疑问句时，其否定回答用

mustn’t 或can’t，不用 may not，意为“不可以，不许，禁止”；might 语气更婉转

—May I go now?我现在可以走了吗？

—No, you mustn’t.不，不可以。

[经典例题]

(1)—Could I smoke here?—Sorry, I’m afraid you ________. Look at the sign “No smoking”!

A. couldn’t B. needn’t C. can’t D. won’t

(2)The girl__________ swim when she was only four years old. Isn’t it amazing?

A. could B. may C. can D. Must

(3)— You _______ hand in your homework now. You ______ give it to me this afternoon.

— Sure, thank you.

A. can’t; need B. mustn’t; need C. needn’t; can D. needn’t; must

(4)— _____ I borrow the books from the library, Miss Yang?

—Sorry, you _____. These books are only for members of the English Club.

A. Can; shouldn’t B. May; can’t C. Could; couldn’t D. Can; needn’t

(5)—________ you fly in the sky like a bird？

—Sorry, I ________．

A．Can; don't B．Can; can't C．Could; do D．Do; can't

(6)[2020 •贵州省安顺市]With the help of Air Classroom, students ________ keep learning even

with schools closed.

A. can B. must C. should D.may

(7)David, ________ make trouble at school.

A．can't B．don't C．doesn't D．couldn't

(8)—You look pretty in green, Kate.

—Thank you. I like green. Green________ give me energy.

A．can B．must C．should D．has to

(9)It's surprising that Mr Ma's little daughter ________ speak English so well.

A．must B．can C．mustn't D．can't

(10)—May I watch TV, Dad?

—When your homework is finished, you ________．

A．should B．can C．must D．need

答案：CACBB ABABB

(11)Could you please speak a little louder? I ________ hear you very well.

A．can't B．mustn't C．shouldn't D．needn't

(12)She ________ be slow, but at least she doesn't make stupid mistakes.

A．needn't B．may C．can't D．shall

(13)Daniel ________ ride a bike ________ he was five years old.

A．can; when B．could; while C．can; while D．could; when

(14)—Help, Help! There’s a sound _______ a ghost in the bushes.

—Don’t worry! It’s just a weak cat. It ________ hurt you.

A.likes / can B. liked / can’t C. is liking / isn’t D. like / can’t

(15)Don’t make such a big noise. I ________ the teacher clearly.

A.can listen B. can listen to C. can’t listen to D. can’t hear

(16)If we don’t get up earlier,we________miss the early bus.

A.can B.must C.may D.should

(17)—Can’t you sing this song in English?

—________.Let me sing it for you.

A.Yes,I can B.No,I can’t C.Yes,I can’t D.No,I can

(18)—May I play computer games now?

—No,you_________.You_________finish your homework first.

A.can’t;must B.needn’t;may

C.mustn’t;can D.may not;may

(19)—Could we picnic here?

—_________.Have a nice time.

A.Yes,you could B.No,you couldn’t C.Yes,you can D.No,you can’t

(20)—Pauline has lost her phone.

—No.It’s in her bag.I__________hear it.

A.must B.shall C.may D.can

答案：ABDDD CAACD

(21)Mr Sun________go out last month because he_________his leg.

A.couldn’t;hurted B.couldn’t;hurt

C.can’t;hurt D.can’t;hurted

(22)Finish your homework first and then you’ll________watch TV for an hour.

A.can B.be able to C.able D.could

(23)He________go out because the stove was on fire.

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