Unit 4 Why don't you talk to your parents? Section A 3a-3c课件(共38张PPT)

(共38张PPT)
Unit 4
Don’t eat in class.
Section A
Period 2 (3a-3c)
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.
Examples
祈使句
1.祈使句是表示命令、叮嘱、号召等的句子;
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：
Don’t eat in class.
Come in, please! 请进！
Sit down, please. 请坐。 　
Don’t play sports in the classroom.
Don’t fight .
否定
肯定
Do you know the rules in these places
hospital
meeting room
gas station
3a Write the rules for the school library.
Library Rules
1. __________________________________
2. __________________________________
3. __________________________________
4. __________________________________
Don’t talk.
Don’t eat in the library.
Don’t listen to music in the library.
Don’t take pictures/photos in the library.
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!
We can walk out of the class anytime we want.
We can wear what we want.
We may have less homework and more free time.
…
can 能，能够 （表示许可）
—Can I sit here —No, you can’t. 我可以坐这儿吗？
不, 你不能。
can 能，会 （表示能力）
—Can you play basketball —Yes, I can.
你会打篮球吗？
是的, 我会。
have to
don’t / doesn’t have to
必须，不得不
不必
你不必在上午七点前到校。
You don’t have to be school before 7:00.
他们在学校必须做什么呢？
What do they have to do at school？
我们要保持安静。
We have to be quiet.
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 the school uniform at school.
can 能，能够 （表示许可）
—Can I sit here —No, you can’t. 我可以坐这儿吗？
不, 你不能。
can 能，会 （表示能力）
—Can you play basketball —Yes, I can.
你会打篮球吗？
是的, 我会。
have to 必须，不得不
don’t / doesn’t have to 不必
你不必在上午七点前到校。
You don’t have to be school before 7:00.
他们在学校必须做什么呢？
What do they have to do at school？
我们要保持安静。
We have to be quiet.
根据句意，用can和can’t填空。
1. Mr Green_______ smoke here because there’s a sign on the wall. It says “No smoking.”
2. It’s very hot outside. You______ wear a hat.
can’t
can
3. We _______ eat in the classroom because it’s impolite to teachers.
4. I ______ go to bed after 11:00 on school night.
5. The students _____ read books and magazines in the library.
can’t
can
can’t
用have to或has to填空。
1.We ________ clean our classroom after school.
2.She _________ make her bed after getting up.
3.It’s late. Mr Beckman ______ go to work by car.
4.Emily and Peter join a music club. They _______ practice the guitar every day.
have to
have to
has to
has to
Let’s look at Mary’s Monday at school.
There’s a gym class today. I have to wear_____________.
sports shoes
But there’s a party at school today, so I don’t have to wear __________________.
the school uniform
After school, I have to clean the _____________.
classroom
Talk about your school day. What can you do and what do you have to do
Then make a list.
Let’s talk according to the list.
Can we eat in the hallway
Yes, we can. / No, we can’t.
Do we have to wear a uniform
Yes, we do. / No, we don’t.
一、单项选择
1. — Can we wear hats in class
— ______.
A. Yes, we do　　　　　　B. No, we don’t
C. No, we can D. No, we can’t
D
2. — Can I use your ruler
— Yes, you _____.
A. may　　　B. need　　　
C. can　　　 D. must
3. — _____do you have to do after school
— Do my homework, of course.
A. What B. When C. Where D. How
C
A
4. — _____ late for school again.
— Sorry, I won’t.
A. Not be B. Don’t be
C. Not D. Don’t
5. _____ your homework after school.
A.Doing B. To do C. Do D. Be do
B
C
1. 上课迟到 ___________ late _______ lass
2. 清洗餐具 ____________ the _________
3. 帮妈妈做早饭
__________ mom _________ breakfast
4. 整理床铺 _________ one’s bed
5. 对某人要求严格 be _________ ________ sb.
arrive/be
for
do
dishes
二、短语互译
help
make
make
strict
with
1. (Can/Does)______ we eat in class
2. (Don’t/Has to)________ wear a hat to
school!
3. Does Bill (have to/can)__________ go to
bed now
4. (Do/Have to)______ they wear
sneakers
三、选择正确的动词填空。
Can
Don’t
have to
Do
1. We have to stay at home.
(改为一般疑问句)
________ you ________ to stay at home
2. Bob has to get home before nine
o’clock. (改为否定句)
Bob ________ ________ ________ get home before nine o’clock.
四、句型转换
Do
have
doesn’t
have
to
3. We can wear our own clothes.
(改为一般疑问句, 并作否定回答)
— ________ you ________ your
own clothes
— No, we ________.
Can
wear
can’t
1. 听我讲。
___________________________________.
2. 不要出去。
___________________________________.
五、翻译下列句子。
Listen to me.
Don’t go out.
3. 让我们踢足球吧。
__________________________________.
4. 我们不要打架。
__________________________________.
Let’s not fight.
Let’s play football.
1. He has to eat breakfast quickly. (改为一般疑问句)
__________________________________
2. Play volleyball after class. (改为否定句)
________________________________
六、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
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.
...