人教版七年级下册 Unit4 Don't eat in class. Section A 2d-3c 课件(共36张PPT)

(共36张PPT)
Unit4 Don’t eat in class.
[ m'per t v]
Imperative sentences
祈 使 句
学习目标：
1.通过本节课的学习能够掌握祈使句的意义和基本的句型结构。
2.通过小组合作讨论与学习，能够运用以下句型正确表述校纪校规：
（1）动词原形+其他
（2）Don’t+动词原形+其他
（3）Be+名词/形容词
（4）We can/can’t /must/have to…
3.通过本节课的学习能够认识到身边的一些规则，并能够自觉遵守，做有素质的中学生。
Let’s watch a video and review our school rules.
Revision
School rules
Don’t…
If you are the teacher , what do you want to say to the students
Turn left!
Guessing Game
新课导学
Turn right!
Guessing Game
［ kwai t］
Be quiet
Guessing Game
Don’t smoke!
No smoking!
Guessing Game
Don’t play football!
Guessing Game
Don’t park!
No parking!
Guessing Game
Don’t eat!
Don’t touch [t t ]
Let’s read the sentences again.
Turn left!
Turn right!
Be quiet!
Don’t smoke!
Don’t fight!
Don’t park your car!
Don’t eat!
Don’t touch!
这些句子有一个共同的名字——祈使句！
Stand up, please!
Sit down, please!
Welcome
祈使句王国
to
自学新知：
请大家走进祈使句王国，读下面的句子，一起发现它的规律和奥秘吧！
（心细认真的孩子能发现更多的奥秘哦！）
探究乐园:
Close the window， please.
Open your book.
Be a good student! Be quiet!
Let's go home!
Let her come in.
Please sit down. =Sit down, please.
Don’t be late.
Don’t read in the sun.
No photos!
No smoking！
请问：左边一栏的句子和右边的句子有什么不同呢？
请问：肯定句是由哪类词语引导的呢？
请问：否定句又是由哪些词语引导的呢？
检测新学1：
1. “英语祈使句王国”的职责是用来表示请求、命令、建议、禁止等。这个王国的特点是通常没有主语，多以________ 开始。
动词原形
2.祈使句肯定句句型：
1. ________ +宾语+其它成分
2. ________ +表语(名词/形容词等)+其它成分
3 .________ +宾语(通常为第一或第三人称宾格)+动词原形+其它成分
4. ________ +动词短语 (表示客气)
动词原形
Be
Let
Please
3.祈使句否定句句型：
1. Don’t + ________ +其它成分
动词原形
2.“No+ __________ ”形式构成公共警示语，是祈使句的一种省略形式。
v-ing / 名词
Let’s do exercise.
检测新学2：
Choose your lucky number
1
2
4
3
5
6
7
8
Library Rules
__________________
__________________
__________________
_______________
学以致用Let’s talk about library rules.
Don’t listen to music./No music.
Don’t eat or drink./No eating or drinking!
Don’t take photos./No photos!
方法指导：
1. 由图示可知都是一些禁止类的祈使句。
2. 可知应用“Don’t + 动词原形”的句子,
也可以使用“No+V-ing/名词”的句子。
Don’t talk./No talking
把下面的句子转换成祈使句。
1.You can’t sleep in class.
Don’t sleep in class.
2.You must listen to the teacher carefully.
Listen to the teacher carefully.
4.You can eat in the dinning hall.
Be quiet in the library.
3.We have to be quiet in the library.
eat in the dinning hall.
Please
从上面的学习中你知道了哪些句型结构可以用于制定规则呢？
可用于制定规则的句型有：
动词原形+其他
Don’t+动词原形+其他
Be+名词/形容词
We can/can’t…
We must/have to…
There are many rules in our school life. What rules do we have Discuss in group of four, then write the rules as many as you can! Then show us!
Let’s discuss and write!
巩固新知
School rules
可使用的句型：
动词原形+其他
Don’t+动词原形+其他
Be+名词/形容词
We can/can’t…
We must/have to…
In the classroom
In the library
In the computer room
clothes
In English class
time
…
祈使句
祈使句,无主语,只用动词就可以.
表示请求或命令,加上please表客气。
如果变成否定句， Don’t开头是规律。
No talking!是警示，祈使句用法要牢记。
There are many rules in our daily life, we should follow them ！
Be a good student!
1. Jim, _____ me a hand.
A. gives
B. is giving
C. will give
D. please give
2. ____ careful, Jenny! There is a tree in front of you.
A. Am
B. IS
C. Be
D. Are
3. Boys and girls, ____more, and your will improve your spoken English.
A. speak
B. speaks
C. speaking
D. to speak
4. —____ higher, and you will see the house.
—OK.
A. If you stand
B. To stand
C. When you stand
D. Stand
5. Please ___ do it.
A. he
B. let him
C. let he
D. him
6. _____ let anyone open the door.
A. No
B. Be
C. Not
D. Don't
7. ______be late again.
A. Not
B. Don’t
C. Be
D. No
8. ____smoking in the
Hospital(医院).
A. No
B. Not
C. Don’t
D. Be