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祈使句
Imperative sentence
Put up your right hand. Put down your right hand.
Guess what kind of sentence they are?
Say “hi” to me.
Touch your left ear with your right hand.
注：let us=let's
1. 让我们去游泳吧。
Let's go swimming. 2. 让我来帮你。
Let me help you. 3. 让我们一起玩吧。
Let's play together.
三、祈使句的否定形式
No 型： No+ doing/n. Don't 型： Don't + do sth.
1.No smoking. Don't smoke.
2.No gambling. Don't gamble.
3.No cellphones. Don't use cellphones.
4.No drugs. Don't take drugs.
No swimming. 3.Don't eat or drink.
D型--V原开头 B型--be动词开头 L型--let开头
1. Do 型：V原+其他
1.Keep your desk clean，please. 2.Put your phone away. 3.Focus on the blackboard. 4.Take notes,please.
1. 请给我一些食物。 Please give me some food.
Let sb not do sth 4) No +doing/n.
Make some rules for yourself.
THANKS
Let's go.
1．
me an e-mail before you come to Hangzhou. I'll meet
you at the airport.
A. Sending B. To send C. Sends D. Send
2． Please _________ because this is a reading room.
get there.
A. Not
Hale Waihona Puke Baidu
B. Don’t
C. Doesn’t D. No
5． —______________. The baby is sleeping.
—I'm sorry.
A. Not talk
B. No talking
C. Don't talks D. Can't talk
6．—Don’t _______late again.
A. are B. be C. is D. am
1. 祈使句的定义与特点 2. 祈使句的肯定及否定结构 3. 练习 4. 没有规矩不成方圆
遵规守纪，严于律己
肯定结构：
1）Do型：V原+其他 2) Be型： Be+ 其他 3) Let 型: Let sb do sth
否定结构：
1）Do型：Don't +V原+其他 2) Be型： Don't +be+ 其他 3) Let 型: Don't let sb do sth
1. 请小心点。
Be careful,please. 2.请安静些。
Be quiet,please. 3. 做你自己。
Be yourself.
3. Let 型： Let sb do sth
Let's go shopping. Let's go fishing. Let him do housework.
Give me some food,please. 2.请节约用水。 Please save water. 3. 请左转。 Please turn left./Turn left,please.
2. Be 型：Be+adj/n/其他
1.Be a good student. 2.Be confident,please. 3.Be kind,please. 4.Be polite.
A. quiet B. to be quiet C. to quiet D. be quiet
3．Let’s ____ volleyball.
- That sounds good
A. play B. to play
C. plays D.to plays
4． _____ drive too fast .We have enough（足够的）time to
Shake hands with your deskmate.
Clap your hands. Be quiet, please.
特点：省略主语，动原开头
一、祈使句的定义
定义： 祈使句是表示请求、命令、警告、劝告、禁止 等语气的句子。可为了表示客气与礼貌，在句 前或句后加please。
二、祈使句的 肯定形式
Don't 型： Don't + be+adj/n/其他.
Don't be late. Don't be shy. Don't be afraid of making mistakes.
1. 请不要喝冰水。
Don't drink cold water. 2.开心点。
Be happy,please. 3. 让我们走吧。
