资料简介 Unit4 SectionA Grammar focus-3c课件2023-2024学年人教版七年级英语下册.pptx 展开
(共19张PPT)
Don’t eat in class.
Unit 4
Grammar
Revision
be late for: ___________
许多的规则: ___________
重要的: ___________
bring: ___________
穿校服: ___________
be quiet: ___________
食堂: ___________
走廊: ___________
按时；准时: ___________
迟到
a lot of/lots of/many rules
important
带来
wear the school uniform
保持安静
dining hall
hallway
on time
What are the rules
Don’t listen to music in class.
Don’t run in the hallways.
Don’t eat in the classroom.
Don't wear a hat in class.
Don’t arrive late for class.
You must be on time.
Don’t fight.
Don’t run in the hallways. Don’t fight.
What are the rules 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.
Can we wear a hat in class Yes, we can. / No, we can’t.
Does he have to wear a uniform at school Yes, he does. / No, he doesn’t.
What do you have to do We have to be quiet in the library.
祈使句
祈使句
1. 祈使句是表示请求、建议、命令、禁止、等的句子;
2. 通常省略主语you;
3. 句中谓语动词用动词原形;
4. 祈使句有肯定和否定两种，句首加Don’t变否定。
。
否定祈使句的句式:
(1)Do型和Be型的否定式都是在句首加don’t构成。
(2)Let型的否定式有两种: “Don’t +let+宾语+动词原形+其他成分”和“Let+宾语+not +动词原形+其他成分”。
(3)有些可用no开头, 用来表示禁止性的祈使句。
祈使句 肯定的祈使句 否定的祈使句
Do型 1.Have a seat here. 请这边坐。 2.Eat in the classroom. 3.Sit down!
Be型 1.Be a good boy! 要做一个好孩子! 2.Be happy!
Let型 1.Let me help you. 让我来帮你。 2.Let them go! 让他们走吧！
1.Don't have a seat here.
2.Don't eat in the classroom.
3.Don't sit down.
1.Don't be a good boy.
2.Don't be happy.
1.Don't let me help you.
/ Let me not help you.
2.Don't let them go.
/Let them not go.
No swimming！
禁止游泳
No smoking!
禁止吸烟
No + v-ing形式。表禁止
肯定祈使句 否定祈使句
Sit down.
Come in.
Eat at home.
Listen to music outside.
5. Do your homework at school.
Don’t sit down.
Don’t come in .
Don’t eat at home.
Don’t listen to music outside.
Don’t do your homework at school.
Exercises
have to 必须，不得不
don’t / doesn’t have to 不必
我们必须戴口罩。
We have to wear masks.
你不必在七点前到校。
You don’t have to get to school before 7:00.
have to与must的区别
must & have to
2
用have to或has to填空。
1.We ________ clean our classroom after school.
2.She _________ make her bed after getting up.
—Lisa, hurry up! The bus is coming.
—Oh, no. We______ cross the street when the traffic lights are red.
A. mustn’t B. needn’t C. should
Exercises
have to
has to
A
不要在走廊上跑步。 不要打架。
规则是什么？ We must be on time for class.
我们能在教室吃东西吗？ 不，我们不能，但是我们可以在餐厅吃。
Can we wear a hat in class 不，我们不能。
他在学校不得不穿校服吗？ 是的，他必须穿。
你们必须做什么？ 我们在读书馆必须安静。
Don’t run in the hallways.
Don’t fight.
What are the rules
我们必须准时上课。
Can we eat in the classroom
No , we can’t, but we can eat in the dining hall.
我们在课堂上能戴帽子吗？
No, we can’t.
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.
3a Write the rules for the school library.
Library Rules
1. __________________________________
2. __________________________________
3. __________________________________
4. __________________________________
Don’t talk.
Don’t eat or drink .
Don’t listen to music.
Don’t take pictures/photos.
3b. Use the words to make questions about the rules.
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.
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.
Exercises
1. Alice家中有很多规则。
______ ___ many ____ in Alice’s house.
2. 你能把你的字典带到学校来吗？
Can you your dictionary school
3. 周末迈克经常在外面吃饭。
Mike often on weekends.
4. Mary星期天不必早起。
Mary _______ _____ __get up early on Sundays.
There are rules
bring to
eats outside
doesn’t have to
1. Sit down.
2. Come in.
3. Eat at home.
Don’t sit down.
Don’t come in.
Don’t eat at home.
1. 把下列祈使句改成否定句
Exercises
用所给词的适当形式填空。
1._____________(not arrive) late for Lucy's birthday party.
2.Don't _____(eat) in your bed，Emily.
3. We must ___________(listen) the teacher in class.
4. We can’t ______(talk) in the library.
Don’t arrive
eat
listen to
talk
Exercises
Don’t eat in class.
Unit 4
Grammar
Revision
be late for: ___________
许多的规则: ___________
重要的: ___________
bring: ___________
穿校服: ___________
be quiet: ___________
食堂: ___________
走廊: ___________
按时；准时: ___________
迟到
a lot of/lots of/many rules
important
带来
wear the school uniform
保持安静
dining hall
hallway
on time
What are the rules
Don’t listen to music in class.
Don’t run in the hallways.
Don’t eat in the classroom.
Don't wear a hat in class.
Don’t arrive late for class.
You must be on time.
Don’t fight.
Don’t run in the hallways. Don’t fight.
What are the rules 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.
Can we wear a hat in class Yes, we can. / No, we can’t.
Does he have to wear a uniform at school Yes, he does. / No, he doesn’t.
What do you have to do We have to be quiet in the library.
祈使句
祈使句
1. 祈使句是表示请求、建议、命令、禁止、等的句子;
2. 通常省略主语you;
3. 句中谓语动词用动词原形;
4. 祈使句有肯定和否定两种，句首加Don’t变否定。
。
否定祈使句的句式:
(1)Do型和Be型的否定式都是在句首加don’t构成。
(2)Let型的否定式有两种: “Don’t +let+宾语+动词原形+其他成分”和“Let+宾语+not +动词原形+其他成分”。
(3)有些可用no开头, 用来表示禁止性的祈使句。
祈使句 肯定的祈使句 否定的祈使句
Do型 1.Have a seat here. 请这边坐。 2.Eat in the classroom. 3.Sit down!
Be型 1.Be a good boy! 要做一个好孩子! 2.Be happy!
Let型 1.Let me help you. 让我来帮你。 2.Let them go! 让他们走吧！
1.Don't have a seat here.
2.Don't eat in the classroom.
3.Don't sit down.
1.Don't be a good boy.
2.Don't be happy.
1.Don't let me help you.
/ Let me not help you.
2.Don't let them go.
/Let them not go.
No swimming！
禁止游泳
No smoking!
禁止吸烟
No + v-ing形式。表禁止
肯定祈使句 否定祈使句
Sit down.
Come in.
Eat at home.
Listen to music outside.
5. Do your homework at school.
Don’t sit down.
Don’t come in .
Don’t eat at home.
Don’t listen to music outside.
Don’t do your homework at school.
Exercises
have to 必须，不得不
don’t / doesn’t have to 不必
我们必须戴口罩。
We have to wear masks.
你不必在七点前到校。
You don’t have to get to school before 7:00.
have to与must的区别
must & have to
2
用have to或has to填空。
1.We ________ clean our classroom after school.
2.She _________ make her bed after getting up.
—Lisa, hurry up! The bus is coming.
—Oh, no. We______ cross the street when the traffic lights are red.
A. mustn’t B. needn’t C. should
Exercises
have to
has to
A
不要在走廊上跑步。 不要打架。
规则是什么？ We must be on time for class.
我们能在教室吃东西吗？ 不，我们不能，但是我们可以在餐厅吃。
Can we wear a hat in class 不，我们不能。
他在学校不得不穿校服吗？ 是的，他必须穿。
你们必须做什么？ 我们在读书馆必须安静。
Don’t run in the hallways.
Don’t fight.
What are the rules
我们必须准时上课。
Can we eat in the classroom
No , we can’t, but we can eat in the dining hall.
我们在课堂上能戴帽子吗？
No, we can’t.
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.
3a Write the rules for the school library.
Library Rules
1. __________________________________
2. __________________________________
3. __________________________________
4. __________________________________
Don’t talk.
Don’t eat or drink .
Don’t listen to music.
Don’t take pictures/photos.
3b. Use the words to make questions about the rules.
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.
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.
Exercises
1. Alice家中有很多规则。
______ ___ many ____ in Alice’s house.
2. 你能把你的字典带到学校来吗？
Can you your dictionary school
3. 周末迈克经常在外面吃饭。
Mike often on weekends.
4. Mary星期天不必早起。
Mary _______ _____ __get up early on Sundays.
There are rules
bring to
eats outside
doesn’t have to
1. Sit down.
2. Come in.
3. Eat at home.
Don’t sit down.
Don’t come in.
Don’t eat at home.
1. 把下列祈使句改成否定句
Exercises
用所给词的适当形式填空。
1._____________(not arrive) late for Lucy's birthday party.
2.Don't _____(eat) in your bed，Emily.
3. We must ___________(listen) the teacher in class.
4. We can’t ______(talk) in the library.
Don’t arrive
eat
listen to
talk
Exercises
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