Unit 4 Don't eat in class. 祈使句的用法 课件(共22张PPT)

(共22张PPT)
祈使句
课 题：Unit4 Don't eat in class
难点名称：祈 使 句 的 用 法
The usage of Imperative Sentences
Imperative Sentences 祈使句
1. The meaning of Imperative Sentences
2. The structure of Imperative Sentences
祈使句的含义
祈使句的结构
The meaning of Imperative Sentences
祈使句的含义
祈使句是表示请求、命令、建议、劝告、警告、禁止等句子，通常说话的对象是第二人称you，you常被省略。句末常用感叹号。
Imperative Sentences 祈使句
Turn off the TV, please. （请关上电视。——请求）
Go and wash your hands. （去洗你的手。——命令）
Let’s get down to work. （咱们开始工作吧！——建议）
Have a nice day! （过个愉快的一天——祝愿）
No parking! (禁止停车 ——禁止)
肯定祈使句
动词原形在开头，祈使句型不发愁
1. 实义动词原形＋ 其他 （Do 型）
(句首句尾加please；句首句尾加人名；句首加Do表强调)
eg. Stand up.
Please sit down.
Tom, close the door.
Do listen to me!
Sit down, please.
Close the door, Tom.
Listen to me!
肯定祈使句
动词原形在开头，祈使句型不发愁
eg. Be happy.
2. Be动词 ＋ 形容词/名词 （Be型）
eg. Let us go.
3. Let ＋ 宾语 ＋ 动词原形 ＋ 其他 （Let型）
Be a good boy.
Let me help you.
Task1
Be quiet..
Jim，have a cake.
Please stand up.
Let's go to the park.
以下哪些句子是肯定祈使句？
Tom likes dogs.
This is my mother.
Do listen to me.
Clap your hands.
否定祈使句
变否定，你别急，加上don’t真容易。
eg. Don’t run.
Don’t open the door.
Don’t be sad.
Tom, don't eat too much.
Please don't drink here.
否定祈使句
1. Don't+let+宾语+动原+其他
2. Let+宾语+not+动原+其他
eg. Let him not do this.
否定祈使有例外，Let句式真奇怪。
例1：Let’s not do this.
例2：Let’s not be sad.
eg. Don't let him do this.
否定祈使句
eg. No smoking. 禁止抽烟。
No food or drinks.
No parking. 禁止停车。
变否定，还有招儿，No后doing表警告
例1：Let’s not do this.
例2：Let’s not be sad.
= Don't eat or drink.
= Don't park your car.
= Don't smoke.
Tip:No后也可加名词。
What do these signs mean？
Task2
Don't...
No...
Let's not...
否定祈使句
P
Sorry, I won't!
Don't...
No...
Let's not...
祈使句回答
肯定祈使句的回答：OK/Thanks/Yes,I will
eg：Please close the door.
否定祈使句的回答:Sorry/Sure,I will not./won't.
OK, I will.
eg. No smoking.
Sorry, I won't.
Task 3
Choose the right answers.
Don't talk.
Don't talk.
Please stand up.
Please stand up.
Please stand up.
Open your book.
Xiaoxin, get up.
Don't eat here.
No smoking.
Please stand up.
No smoking.
Close the door.
Close the door.
Don'teat here.
...,I won't.
Open your book.
...,I will.
Task 4 Exercise
帮助超人小新消灭怪兽吧！
MONSTER
1. Jim, _____ me a hand.
A. gives B. is giving C. will give D. give
-1000
MONSTER
2. ____ careful, Jenny! There is a tree in front of you.
A. Am B. / C. Be D. Was
-1000
MONSTER
3. Let's ____ our time.
A. not waste B. no wasting C. not to waste D. no waste
-2000
MONSTER
4. _____ let anyone open the door.
A. Don't B. Will C. Not D. No
-1000
MONSTER
5. — Don’t be late again. — Sorry, ______.
A. I may B. I must C. I will D. I won’t
-1000
祈使句用法口诀
祈使句无主语，
主语you常省去。
动词原形谓语当，
句首Don't变否定。
朗读应当用降调，
句末常标感叹号。
Prcacice makes perfect!