祈使句的用法及练习

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祈使句的用法及练习



一、含义

用来表示请求、命令、劝说、叮嘱等的句子就是祈使句。祈使句一般以动词原形开头。



二、形态

（一） Be 型 (be+adj)

Be careful! Be dangerous! Be quiet!

（二） Do 型 (Do 代表动词原形 )

Open the door! Close the window! Go and play football! （三） Let's 或 Let us 型

Let's go home! Let us help Mary! Let me clean the room!

（四） No+动名词，多用在标语禁令中

No smoking! No parking! No spitting!

No+动名词可以与 Don't+ 动词原形替换。 No smoking!=Don't smoke!



三、否定形式

Be型和 Do型前直接加 Don't ， Let's 型可前面直接加 Don't 或 let's 后加Don't be careful! Don't open the door!

Don't let's go home!/Let's not go home!



四、反意疑问句

祈使句的反意疑问句一般用 will you?

Let's--- 用 shall we? Let us---

用 will you?

Open the door,will you? Let's go home,shall we? Let us help Mary,will you?



五、 六、练习题

（一）用括号内所给词的适当形式填空

。

not
1．

2． It's an important meeting. (not be) late.

3． 4. (look) out!A car is coming!

5. (not make) any noise! The baby is sleeping.

6． 7．Let's (not say) anything about it.

8． 9. (not let) the baby cry. 10. (read) aloud,please.

11.

(not talk) with your classmate in the class. （二）选择题 1. Her doctor said:"

work so hard"

A stop B Don't

C can't

D No

2. Sindy,

to be here at 8 o'clock.

A is sure B is sure that C will be sure 3.

him the secret,will you?

A Don't tell B Not to tell

C Not telling

4. Please

look outside,look at the blackboard.

A not B don't

C aren't

5. John,read the text for us,

?

A does he B will he C do you 6. Let's do it at once,

? A shall we B will you C do we

7. Let us do it at once, ? A shall we B will you C do we 8. in bed, It's bad for your eyes.

A Not to read

B Don't read

C Don't to read

9． 10．

smoking!

A Don't B No

C Don't to



D be sure D No telling



D will you D do you

D do you D Not read

D can't





D Be not

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