祈使句(Imperative Sentence)
1. 定义
用于表达命令、请求、劝告、警告、禁止等的句子叫做祈使句,祈使句最常用于表达命令,因此在学校文法中也常称为命令句。
祈使句因对象(即主语)是第二人称,所以通常都省略。祈使句的动词都为一般现在时,句末则使用句号来表示结束。
.用客气的语气表示祈使句时,可在句首或句尾加上please,但如果在句尾加please,那在please之前一定要加一个逗号“,”。
二、相关口令
祈使句无主语, 主语you常省去;
动词原形谓语当, 句首加don't否定变;朗读应当用降调。
三、表现形式
●肯定结构:
1. Do型(即:动词原形(+宾语)+其它成分)。如:Please have a seat here. 请这边坐。
有的祈使句在意思明确的情况下,动词可省略。如:This way, please. = Go this way, please. 请这边走。
2. Be型(即:Be + 表语(名词或形容词)+其它成分)。如:Be a good boy! 要做一个好孩子!
Be quite.安静 Be careful!小心!
3. Let型(即:Let + 宾语 + 动词原形 + 其它成分)。如:Let me help you. 让我来帮你。
●否定结构:
1. Do型和Be型的否定式都是在句首加don't构成。如:Don't forget me! 不要忘记我!
Don't be late for school! 上学不要迟到!
2. Let型的否定式有两种:“Don't + let + 宾语 + 动词原形 + 其它成分”和“Let + 宾语 + not + 动词原形 + 其它成分”。如:Don't let him go. / Let him not go. 别让他走。
3. 有些可用no开头,用来表示禁止性的祈使句。如:No smoking! 禁止吸烟!No fishing! 禁止钓鱼!
四.反意疑问句 ( http: / / baike. / view / 46365.htm" \t "_blank ), 祈使句后可以加一个简短问句,使语气变得客气一些.
如:Have a rest,will you .
Stand up,will (won't) you .
注意: Let''s go,shall we?
Let us go,will you?
祈使句练习
一、将以下祈使句改为否定式:
1. Come here early.
2. Ask him.
3. Please wait for her.
4. Read the book carefully.
5. Sit under the tree, please.
6. Let’s go there together.
二、选择最佳答案填空:
( )1. If you are tired, ______ a rest.
A. have B. having C. to have D. had
( ) 2. He is not honest. ______ believe him.
A. Not B. Don’t C. To not D. Not to
( )3. _____ in the street. It’s dangerous.
A. Not play B. Not to play C. Don’t play D. Don’t to play
( )4. Please ______ me some money, will you
A. lend B. lending C. to lend D. be lend
( )5. The film is about to begin. Please ______ seated.
A. be B. are C. is D. being
( )6. _____ the boxes. You may use them later.
A. Keep B. KeepingC. To keep D. Kept
( )7. _____ up early tomorrow, or you can’t catch the train.
A. Getting B. Get C. To get D. Got
( )8.Her doctor said: “________ work so hard”
A Stop B Don’t C Can’t D No
( )9. Sindy, ________ to be here at 8 o’clock
A is sure B do sure that C will be sure D be sure
( )10. ________him the secret, will you
A. Don’t tell B. Not to tell C. Not telling D. No telling
( )11. ________ in bed. It’s bad for your eyes.
A. Not to read B. Don’t read C. Don’t to read D. Not read
( 12. ________ Your child. We’ll look after him.
A. Not to worry about B .Don’t worry about
C . Not worry for D .Don’t worry with
( )13.They are very tired. Why ________ have a rest
A. not they B .do not they C .don’t they D .not to
( )14. --You look rather tired. ________ stopping to have a rest
-- All right.
A .Why not B. How about C. Why not to D.why don’t
( ) 15. ______ tell a lie.
A Hardly B. Not C. No D .Never、
( )16.Please ________ look outside. Look at the blackboard.
A. not B. don’t C .aren’t D. can’t
( )17 .Her doctor said: “________ work so hard”
A .Stop B .Don’t C. Can’t D. No
( )18. 1. The TV is too loud. Please________.
A. turn it down B. to turn it down C. turn down it D. to turn down it
( )19.________ when you cross the road.
A. Do care B. Care C. Be careful D. To be careful
( )20. ________him the secret, will you
A. Don’t tell B .Not to tell C. Not telling D. No telling
( )21. If you want to stay, let me know, ______
A. will you B. shall we C. do you D. do we
( )22. Never come late again, ______
A. will you B. won’t C. do you D. does he
( )23. John, read the text for us,________
A does he B will he C do you D will you
( )24. Let’s do it at once, ________
A shall we B will you C do we D do you
( )25. Let us do it at once, ________
A shall we B will you C do we D do you
三.用括号内所给动词的适当形式填空。
1. It’s an important meeting. _____ _____ (not, be )late.
2. ______ ______ (not,make) any noise! Your mother is sleeping.
3. ______ ______ (not, speak) with your mouth full of food and ____________ (be) polite.
4. ______ ______ ( not, talk) and __________ (read) aloud.
5. _____ _______ (not,leave) your homework for tomorrow, Larry.
6. ______ ______ (not look) out! A car is coming.
7. ____________ (give) us ten years and just see what our country will be like.
8. ____________ (not, let) the baby cry.
9. Wear more clothes or you _____ ______ (catch) a cold.
10. Let’s _____ _______ (not, say) anything about it.
11. No .(park)
四.句型转换
1. Will you please read it again more slowly (改为祈使句)
_____ _____ again more slowly, please.
2. If you don't listen to me, I'll go. (改为同义句)
_____ _____ me, or I’ll go.
3. Let's watch the sports games. (改为反意疑问句)
Let's watch the sports games, _____ _____
4. The teachers often tell the students not to be careless. (改为祈使句)
_____ _____careless, please.
5. If you move, you'll die. (改为同义句)
_____ _____, or you'll die.
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