人教版七年级下册英语Unit 4 Don't eat in class. Section A Grammar focus-3c 课件（19张PPT）

(共19张PPT)
Don’t eat in class.
Unit 4
Section A Grammar Focus-3c
2d.分角色表演对话。
John:嗨，我的名字是John.这是我在学校
的第一天。
Alice:嗨，John.我是Alice.这是个很棒的学
校，但是(它)有许多规定。
John:真的么？其中的一些规定是什么？
Alice:嗯，上课别迟到。这是非常重要的。
John:好的，所以我们必须按时到。我们能
把音乐播放机带来学校么？
Alice:不，我们不能。而且我们总是必须穿
校服。
John:我知道了。
Alice:噢，而且我们也必须在图书馆保持安静。
2d.掌握下列短语。
1.我的第一天my first day
2.在学校at school
3.有there is/are…(be动词用就近原则)
4.其中一些规定some of the rules
其中一些some of +可数n.复数
5.迟到be late for…=arrive late for…
6.必须按时到must be on time
must情态动词+动词原形
on time按时 介词短语，与be动词连用
7.把…带来…bring …to …
把…带去…take …to …
8.必须，不得不have to +动词原形
单三形式has to +动词原形
9.保持安静be quiet=keep quiet
5. have to与must
1) have to意为“必须做某事”强调“客观需要”
They have to wear school uniforms every day.
他们每天必须穿校服。
2) must 意为“必须”强调主观上的愿望
It’s late. I must go home now.
天晚了。现在我必须要回家。
练一练：用have to, must 填空
1. It’s cold outside. We ______ stay at
home.
2. We ____ be good with our parents.
have to
must
I ____________a uniform every day.
They _______wear a uniform every day.
Yes,____.
Do you have to wear a
uniform every day
have to
No,______.
have to wear
I do
I don’t
She _______do homework
every day.
has to
Jane______________________
on weekends.
has to clean her bedroom
2d.分角色表演对话。
John:嗨，我的名字是John.这是我在学校
的第一天。
Alice:嗨，John.我是Alice.这是个很棒的学
校，但是(它)有许多规定。
John:真的么？其中的一些规定是什么？
Alice:嗯，上课别迟到。这是非常重要的。
John:好的，所以我们必须按时到。我们能
把音乐播放机带来学校么？
Alice:不，我们不能。而且我们总是必须穿
校服。
John:我知道了。
Alice:噢，而且我们也必须在图书馆保持安静。
1.不要在走廊里跑。 不要打架。
2.规定是什么？ 我们必须按时上课。
3.我们能在教室里吃东西么？
不，我们不能，但是我们能在餐厅里吃。
4.我们上课能戴帽子么？
是，我们能。/ 不，我们不能。
5.他在学校必须穿校服么？
是的，他必须穿。/不，他不需要。
6.你们必须做什么？我们必须在图书管里保持安静。
Grammar Focus
Library rules
1. Don’t talk.
=No talking./Keep quiet./Be quiet
2. __________
3. __________
________
4. __________
_______
Don’t eat.
Write the rules for the school library.
3a
Don’t listen to music.
Don’t take photos.
Use the words to make questions about the rules. Then write answers according to your school.
3b
1. Be quite
Q: Does she have to be quite in the library
(she/have to/in the library)
A: Yes, she does.
2. Eat
Q: ________________________________
(he/ have to/ in the dining hall)
A: _________________________________
Does he have to eat in the dining hall
No, he doesn’t. He can also eats outside.
3. Listen to music
Q: ________________________________
(we/ can/ in the hallways)
A: ________________
4. Wear a hat
Q: _______________________________
(we/ can/ in the classroom)
A: _______________
Can we listen to music in the hallways
Can we wear a hat in the classroom
No, we can’t.
No, we can’t.
We can
do homework in the classroom.
read a book.
listen to the teachers in class.
watch TV on school nights.
play computer games.
wear hats in class.
listen to music in class.
eat anything in class.
draw on the wall.
ride bikes at school.
We can’t
按要求改写句子，每空一词。
1. Paul has to eat outside.
(改为一般疑问句)
_____ Paul _____ ___ eat outside
2. They can wear hats in the hall.
(改为一般疑问句)
_____ they _____ hats in the hall
3. The students have to wear sports shoes
for gym class. (对划线部分提问)
______ do the students _____ ___ ___
Does have to
Can wear
What have to do
4. You can’t stand in the middle of the
street. (改为祈使句)
_____ ______ in the middle of the street.
5. Take the pen to your sister. (改为否定句)
______ ______ the pen to your sister.
6. Don’t arrive late next time. (改为同义句)
_______ ____ late next time.
Don’t be
Don’t stand
Don’t take
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
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
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