Unit 4 Don't eat in class. Section A Grammar Focus-3c 课件 (共30张PPT)人教版七年级英语下册

(共30张PPT)
Unit 4
Don't eat in class!
Section A 2a-3c
Objectives
1.To learn to talk about library rules
2.To learn to use have to/must,can and can’t
3.To learn to use Imperatives sentences
Do you know them
rules.
school
They are
Don’t talk.
Don’t eat food.
Don’t listen to music.
（校规）
Can we eat an apple in the classroom
No, we can’t.
Don’t eat in the classroom.
We can’t eat in the classroom.
.
Sorry,Kathy.
Can we run in the hallways
No, we can’t.
Don’t run in the hallways.
Don’t run in the hallways.
We can’t run in the hallways.
Can we listen to music in class
No, we can’t.
Don’t listen to music in class.
No!
We can’t listen to music in class.
Can we arrive late for class
No, we can’t.
arrive late for class.
Don’t
No!
We can’t arrive late for class.
School rules:
1. ______ arrive late for class/school.
2. Don’t eat ___________________.
3. ______ fight.
4. ______ sleep in class.
5. _______ wear a hat in______.
6. ______ run in the ___________.
7. ______ __________ music in the
classrooms / hallways.
8. Don’t……
Don’t
in class
Don’t
Don’t
Don’t class
Don’t hallways
Don’t listen to
1. ___ listen to music in the classroom or hallways
2. ___ listen to music in the music room
3. ___ listen to music outside 4. ___ eat in the classroom
5. ___ eat in the dining hall 6. ___ eat outside
7. ___ wear a hat 8. ___ fight
Listen. Check (√) the activities Alan and Cindy talk about.
2a
√
√
√
√
√
√
√
Listen again. Can Alan and Cindy do these activities Circle can or can’t above.
2b
Activity
1. ___ listen to music in the classroom or hallways can can’t
2. ___ listen to music in the music room can can’t
3. ___ listen to music outside can can’t
4. ___ eat in the classroom can can’t
5. ___ eat in the dining hall can can’t
6. ___ eat outside can can’t
7. ___ wear a hat can can’t
8. ___ fight can can’t
√
√
√
√
√
√
√
Listen again and fill in the blanks.
Cindy: What are the school rules, Alan
Alan: Well, we can’t listen to music _________________________. But we can
listen to it _________________________ .
Cindy: Uh-huh.
Alan: And we can’t eat in the _________, but we can eat in the _____________.
Cindy: Oh. And can we wear a hat in class
Alan: ____________. What else Oh, you can't _________ your classmates.
That makes the teachers really unhappy.
Cindy: I see…
in the classroom or hallways
outside or in the music room
classroom
dining hall
fight with
No, we can’t
Student A is Alan and Student B is Cindy. Talk about the rules in 2a.
2c
Can we listen to music, Cindy
We can’t listen to music in the hallways, but we can listen to it outside.
Can we _________
Yes, we can./ No, we can’t, but we can ____________.
1. wear a hat
2. eat in the
classroom
3. fight
1. eat in the dining hall
1. What are John and Alice talking about
2. How many rules does Alice mention(提到)
2d. Listen and answer these two questions.
They are talking about school rules.
She mentions four rules in total.
Don'ts Dos
be late for class
bring music players to school
be on time
wear the school uniform
be quiet in the library
Read the conversation and finish the chart.
1.祈使句的肯定句通常是以动词原形开头。否定句在动词原形前加don't.
3.can,must,have to 后接动词原形。
2.can表能够，允许，have to 表不得不，必须， must 表示必须
Grammar Focus
1. 情态动词在用法上有什么共同点？
2. can在本单元主要表示什么含义？它还可表达什么意思？
3. have to在用法上与其他情态动词有何区别？
一、祈使句
用法：一般以动词原形开头，表示请 求、命令、劝说、警告等。在祈使句中，通常省略句子主语第二人称you。
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。
_________________________________
探究乐园
动词原形
Eat in the dining hall.
Listen to music in the music room.
Ride the bike to school.
(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.
二、询问和讨论学校规则：
1. ━有什么规则？━我们必须保持安静。
__________________
2. ━我们可以在上课的时候戴帽子吗？
________________________________
━不可以。你可以在外面戴帽子。
___________ ______________________
3. ━你必须做什么事？ __________
━我们必须穿校服。
________________________________
4. 他必须在校吃午饭吗？
__________________________________
What are the rules
We must be quiet.
Can we wear a hat in class
No, we can’t. You can wear a hat outside.
What do you have to do
We must wear the school uniforms.
Does he have to eat lunch at school
3a
Write the rules for the school library.
1
2
3
4
Don’t take photos.
Don’t listen to music.
Don’t eat or drink.
Library Rules
Don’t talk.
________________
________________
________________
Don’t listen to music.
Don’t eat or drink.
Don’t take 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”句子。
3b Use the words to make questions about
the rules. Then write answers according
to your school.
Be quiet
Q: ___________________________________ (she / have to / in the library)
A: ___________________________________
Eat
Q: ___________________________________
(he / have to / in the dining hall)
A: ___________________________________
Does she have to be quiet in the library
Yes, she does.
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 wear a hat in the classroom
No, we can’t.
Can we listen to music in the hallways
No, we can’t.
3c Make up five cool rules for your dream school. Share your rules with the class. Your classmates vote for the Coolest School!
1. We can eat in class.
2. We don’t have to come to school every day.
3. …
What can you do
What can’t you do And what do you have to do at home
Do you have family rules
Exercise
一.单项选择
1. ______ with fire. It’s very dangerous.
A. Playing 　 B. Play
C. Don’t play D. Doesn’t play
2.The children _____ play football on the road. A. can 　　B. must 　 C. mustn’t 　 D. may
3.My sister ______ be at school by seven o’clock.
A. has to　　　 B. have to
C. had to 　　　D. must to
4. It’s raining all day, so my brother _____stay at home.　A. must 　B. have to　　C. must to 　D. has to
5. It’s very warm outside. You ______ wear the coat.
A. have to B. hadn’t to?
C. don’t have to D. mustn’t
6.Mary, ______ in bed.
A. not read B. don’t read
C. no reading D. doesn’t read
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.
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
You must be on time for class.
What does Eric have to do before six
1.背会本节课课件中的知识点
2.完成同步练习册第四单元 Section AGrammar focus-3c
Homework