人教版七下Unit4 Section A Grammar-3c 课件

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Unit4
Don’t eat in class.
Section A Grammar-3c
Alice
John
Things they have to do Things they can’t do
They must be on time.
They can’t be late for class.
They have to wear school uniforms.
They can’t bring music players to school.
They have to be quiet in the library.
从2d中找出下列短语
1.我在学校的第一天
2.有许多规章
3.其中一些规章
4.上课迟到
5.要准时
6.带...到...
7.必须，不得不
8.穿校服
9.安静
my first day at school
There are a lot of rules.
some of the rules.
be late for class
=
arrive late for class
be on time
bring sth. to...
have to
wear the school uniform
be quiet
Let’s watch a video about David.
Lead in
There are so many rules that David must follow. Can you find these rules
Let’s look at these sentences.
No yelling!
Don’t chew gum in class!
No pushing!
No running!
Sit down!
Raise your hands!
Keep your hands to yourself!
Wait your turn!
Lead in
What do they have in common
No yelling!
Don’t chew gum in class!
No pushing!
No running!
Sit down!
Raise your hands!
Keep your hands to yourself!
Wait your turn!
缺少主语
表示命令、请求、劝告、警告和禁止等的句子。
祈使句
imperative sentence
Library Rules
Can they use the computer
Yes, they can.
Does he have to sit well
Yes, he does.
Can he talk loudly on the phone
No, he can’t.
Library Rules
Don’t talk.
________________
________________
________________
Write the rules for the school library.
Don’t listen to music.
Don’t eat.
Don’t take photos.
3a
Library Rules
We ____________ be quiet.
We ______ eat.
______ listen to music.
______ run.
...
must/ have to
can’t
Don’t
Don’t
make DOs&DONs
at least 6 rules
=Don't speak aloud
=Don't run around
=Don't be late for returning
books
=Don't go against the librarian
=Don't take anything for granted
=Don't behave badly
=Don't break the rules
Cindy
John
Being new students, Cindy and John have learned school rules.
Alice is testing what they’ve learned.
Alice
Don’t run in the hallways.
Don’t fight.
Cindy
John
Alice
We must be on time for class.
Can we eat in the classroom
No, we can’t, but we can eat in the dining hall.
What are the rules
Can we wear a hat in class
No, we can’t.
Cindy
John
Alice
Does he have to wear a uniform at school
Yes, he does.
What do you have to do
We have to be quiet in the library.
Let’s review the sentences!
Can you find 3 modal verbs
What are the differences
must/can/have to
+V原型
can表许可
must 强调主观意愿，表“必须”
have to 强调客观意愿，表“不得不”
2. 句子结构
(1) 肯定句：__________+ 其他
在餐厅里吃东西。
________________________________
在音乐教室里听音乐。
________________________________
骑自行车去上学。
_________________________________
Ride the bike to school.
Eat in the dining hall.
动词原形
Listen to music in the music room.
祈使句
表示请求、命令、劝说、警告等。
在祈使句中，通常省略句子主语“you”。
(2) 否定句: _____ + _________+ 其他
不要和同学们打架。
_______________________________
不要在教室里打篮球。
________________________________
Don’t fight with your classmates.
Don’t play basketball in the classroom.
Don’t 动词原形
以let引起的句子 ____+ sb.+动词原形
让我们步行去上学吧。 _________________
(4) No + 动词-ing形式。表示“禁止、规劝”
禁止停车！No Parking.
禁止吸烟！No Smoking.
Let
Let’s walk to school.
How do we change them into negative ones (否定形式)
can表许可
must 强调主观意愿，表“必须”
have to 强调客观意愿，表“不得不”
can’t 表不允许
mustn’t 表“禁止”
don’t have to 表“没必要”
无人称和时态变化
有无人称和时态变化
Let’s translate some sentences.
1.学生禁止在河里游泳。(mustn’t)
2.Cindy周末没必要早起.(don’t have to)
3.John不能在教室打篮球。
1. Students mustn’t swim in the river.
2. Cindy doesn’t have to get up early in the morning.
3. John can’t play basketball in the classroom.
Let’s have a summary!
肯定形式
否定形式
祈使句
1. Do型
2. Be型
3. Please型
4. Let’s型
1. Don’t型
2. No型
Is Zhao Pei happy Why or why not
Can
have to/
must
have to/
must
have to/
must
can’t
have to/
must
can’t
have to/
must
can
P24
3a
Complete Zhao Pei’s letter to Dr. Know using
have to/must, can or can’t.
3a
Complete Zhao Pei’s letter to Dr. Know using have to/must, can or can’t.
Can
have to
must
have to
can’t
can’t
must
can
must
穿校服
留短发
learn to do sth.学做某事
have fun相当于have a good time或enjoy oneself
Things Zhao Pei has to do Things Zhao Pei can’t do
She must get up at 6 o’clock.
She has to wear a school uniform.
She must keep her hair short.
She has to learn to play the piano.
She can’t play with her friends after school.
She can’t watch TV after school.
She can’t relax on weekends.
Complete the chart with the rules in your home and school.
P24
3b
Things I have to do Things I can’t do
I must …
I have to…
I can’t …
plete the chart with the rules in your home and school . Check (√) the rules you think are unfair.
Things I have to do
Things I can’t do
Tidy room
Practice piano
Arrive late for class
Stay up late
3c. Write a letter to Dr. Know. Tell the
rules and how you feel about them.
写作指导：
1.文章应该包括两方面的内容，不能遗漏
2.注意文章结构，不同的部分分段
3.看法应相对客观，不能一味牢骚
One Possible Version
Dear Dr. Know,
There are too many rules in my life!
At home, I have to help my mom and dad do the
dishes every day. And I have to clean my room on
Saturdays. I can’t go out with my friends on weekends.
At school, we can’t eat in class. We have to wear a school uniform. And we can’t be noisy in the hallways.
How can I relax with so many rules What should I do
Ken Li
1. He has to eat breakfast quickly. (改为一般疑问句)
__________________________________
2. Play volleyball after class. (改为否定句)
________________________________
句型转换
Does he have to eat breakfast quickly
Don’t play volleyball after class.
exercise
3. We can wear sports shoes in class. (改为一般疑问) ______________________________
4. Don’t arrive late for class. (改为同义句)
_______________________________
5. Eric has to do his homework before six. (对划线部分提问)
___________________________________
Can we wear sports shoes in class
We must be on time for class.
What does Eric have to do before six
Rules can also make yourself a better person and make your school more beautiful!
So, let’s design a poster with some rules for your school.
Summary
Design a poster for one of the facilities (library, gym, lab, dining hall, etc.) of your school, and you are required to list at least four rules.
Thank you!