人教版七年级下册Unit 4 Don't eat in class. Section A Grammar Focus-3c课件(共34张PPT）

(共34张PPT)
Unit 4
Don’t eat in class.
Section A Grammar Focus-3c
To learn to use “can” for permission.
To learn to write the rules.
To learn to make questions about
rules and answer.
Objectives
Don’t smoke!
No smoking!
Warming Up
Tell your classmate what the rules should be.
Don’t fight.
No fighting!
Don’t run in the hallways.
Don’t arrive late for class.
We have to wear uniforms.
Can you find 4 modal verbs
must/can/
have to + V-原
What are the differences
can 可以；能够
must 必须
have to不得不
How can we change them into negative forms否定式
can 可以；能够
must 必须
have to不得不
can't 不能
mustn't 禁止
don't have to 没必要
无人称、时态变化
有人称、时态变化
Let's translate some sentences.翻译句子
1.学生禁止在河里游泳。
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 on weekends.
3. John can't play basketball in the classroom.
What are the school rules
1.You must be on time.
3. You must eat in the dining hall.
Review 1a
1.You must be on time.
3. You must eat in the dining hall.
“必须，务必”
Sb. must do sth.
You must wear a uniform.
一般疑问：must提前
Must you wear a uniform
肯定回答：Yes, you must.
否定回答：No, you needn't.
No, you don't have to.
情态动词 must
Write the rules for the school library.
Library Rules
1.
2.
3.
4.
Don’t talk.
Don’t eat.
Don’t listen to music.
Don’t take photos.
3a
Use must to write the rules.
3a
1. You must be quiet.
2. You must eat in the dining hall.
3. You must listen to music in the music room.
4. You must take photos outside.
Use the words to make questions about the rules. Then write answers according to your school.
Be quiet
Q: Does she have to be quiet in the library
(she/have to/in the library)
A: Yes, she does.
Eat
Q: ____________________________________
(he/have to/in the dining hall)
A: __________________
Does he have to eat in the dining hall
Yes, he does.
3b
Listen to music
Q: ________________________________
(we/can/in the hallways)
A: __________________
Wear a hat
Q:________________________________________ (we/can/in the classroom)
A: __________________
Can we listen to music in the hallways
No, we can’t.
Can we wear a hat in the classroom
No, we can’t.
What are imperatives祈使句？
How many types of imperatives
祈使句
Get up.
Eat you breakfast.
Be careful.
Help!
How do we make it more polite
Please close the door.
Give me a minute, please.
Let's go out.
Let's not go out.
Don't fight.
Don't run.
No smoking.
No swimming.
No pbotos.
祈使句
肯定式
否定式
1. Do sth.
2. Be + adj.
3. Please do sth.
4. Let's do sth.
1. Don't do sth.
2. No + n./V-ing.
1. We can eat in class.
2. We don’t have to come to
school every day.
3. …
Make up five cool rules for your dream school. Share your rules with the class. Your classmates vote for the Coolest School!
At my dream school, we don’t have to come to school every day. We …
3c
At my dream school, we don’t have to come to school every day. …
We can eat in class. …
We don’t have to wear school uniforms. …
We can listen to music in class. …
We can eat in the classroom. …
We don’t have to do homework. …
At my dream school, we don’t have to come to school every day. We can eat in the classroom.
We can listen to music in class.
We don’t have to do homework.
We don’t have to wear school uniforms at school.
Report
Ⅰ.用所给单词的适当形式填空。
1. Don’t ________(listen) to music in the library.
2. Do we have to ________(clean) the room
every day
3. You can’t ________(wear) sunglasses in
the classroom.
4. Please ________(arrive) at school on time (准时).
5. John is often late for _______ (class).
class
listen
clean
wear
arrive
Exercises
Ⅱ.将下面的句子改为祈使句，每空一词。
1. You can come in.
______ ____, please.
2. I can help you.
_____ me ______ you.
3. You can’t eat in class.
_______ _____ in class.
4. You can’t be late for school.
______ ____ late for school.
5. You can’t take photos here.
_____ photos here.
Come in
Let help
Don’t eat
Don’t be
No
1. -- Can the students eat in the classroom
(作否定回答)
-- No, ___________.
2. Bill has to play sports every morning.
(改为一般疑问句)
_____ Bill _____ ___ play sports every
morning
they can’t
Does have to
Ⅲ.按要求完成句子，每空一词。
3. You can’t wear a hat in class.
(改为祈使句)
______ ____ a hat in class.
4. He has to see his grandparents on
weekends. (对划线部分提问)
What _____ he ____ ____ ____ on
weekends
5. Come in, please. (改为否定句)
_____ _____ in, please.
Don’t wear
does
have to do
Don’t come
1. 我们必须按时到校。
We must arrive at school ___ _____.
2. 你能把你的电子游戏带到学校来吗？
Can you _____ your computer game ___ 　　　
school
on time
bring
Ⅳ.根据所给汉语完成英语句子，每空一词。
to
3. 周末迈克经常在外面吃饭。
Mike often ____ ________ on weekends.
4. 星期天你不必早起。
You _____ _____ ___ get up early on
Sundays.
5. 不要在走廊里乱跑。
Don’t run ___ ____ ________.
eats outside
don’t have to
in the hallways
Write down ten sentences about
what you can or can’t do in your
house.
We can’t eat in bed.
We can’t fight.
...