Unit 4-Don't eat in class. Section A 2d-3c 课件（共有PPT31张）

(共32张PPT)
Unit 4
have to/has to/ had to
don’t /doesn’t have to=needn’t
必须 ,不得不
不必、没有必要
1.我们必须穿校服吗？
2.玛丽必须穿运动鞋上体育课。
3.琳达，你不必在上午七点到校。
4. 他们在学校不得不做什么呢？
5. 我们必须在课上保持安静。
6. Amy必须每天弹钢琴。
7. 我必须要打扫教室。
8. 她必须在10点钟去睡觉。
小组练习 用have to造句
1.我们必须穿校服吗？
2.玛丽必须穿运动鞋（ sports shoes）上体育课。
3.琳达，你不必在上午七点前到校。
4. 他们在学校不得不做什么呢？
Do we have to wear a uniform
Mary has to wear sports shoes
in PE class.
Linda, you don’t have to get to school
at seven in the morning.
What do they have to do at school
6. Amy必须每天弹钢琴。
7.我必须在放学后(after class)打扫教室。
8. 她必须在10点钟去睡觉。
Amy has to play the piano every day.
I have to clean the classroom after
classroom.
She has to go to bed at 10.
5. 我们必须在课上保持安静。
We have to be quiet in class.
从2d中找出下列短语
1.我在学校的第一天
2.有许多规章
3.其中一些规章
4.上课迟到
5.要准时
6.带...到...
7.必须，不得不
8.穿校服
9.安静
my first day at school
There are a lot of rules.
some of the rules.
be late for class
=
arrive late for class
be on time
bring sth. to...
have to
wear the school uniform
be quiet
2d Role-play the conversation.
1. Is John new at school ___________
2. Are there many rules at school
______________
2d Read the conversation in 2d and answer the questions.
Yes, he is.
Yes, there are.
3. Can he bring music players to school
_______________
4. Do they have to always wear the school uniform _______________
No, he can’t.
Yes, they do.
A
B
C
D
E
F
G
H
music, listen to, in the classroom, don’t (3分）
Don’t listen to music in the classroom.
A 组句
Guess！
Keep quiet and don’t make noise.(吵闹)
Don’t speak loudly when you read the book.
You can’t take the book away.
You can borrow(借) the book if you have a card.
A school rules B classroom rules
C library rules D traffic(交通) rules
B
（3分）
Do your homework at school.
Don’t do your homework at school.
C 把句子改为否定句。（4分）
准时
(be) on time
D 翻译词组（2分）
上课迟到
be late for class
arrive late for class
I have to get up at 7:30 every morning.
E 把下面的句子变为一般疑问句，并做肯定回答。（3分）
Do you have to get up at 7:30 every morning
Yes, I do.
She has to clean the classroom at school.
F 对划线部分提问。（4分）
What does she have to do at school
不要在教室里吃东西，你必须在餐厅吃。
G 翻译句子 （5分）
Don’t eat in the classroom. You must eat in the dining hall.
学校里有许多规章制度。
H 翻译句子（5分）
There are a lot of rules at school.
1. 不要在楼道里跑。 __________________
2. 不要打架。 _________________
3. 有什么规则？ _________________
4. 我们必须按时上课. __________________
5. 我们可以在教室里吃东西吗？
_____________
6. 不能。但我们可以在餐厅里吃东西。
________________________________
7. 我们可以在上课的时候带帽子吗？
___________________________
阅读Grammar Focus部分，完成下列句子。
Don’t fight.
Don’t run in the hallways.
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
8. 他在学校里必须穿校服吗？
__________________________________
9. 是的，必须。/ 不，不必。
_______________________________
10. 你们必须做什么？
_______________________________
11. 在图书馆里我们必须保持安静。
_________________________________
Yes, he does. / No, he doesn’t.
Does he have to wear a uniform at school
What do you have to do
We have to be quiet in the library.
肯定的祈使句：
Come in, please! 请进！
　 Sit down, please. 请坐。
　 Let's go home. 我们回家吧。
否定的祈使句是在动词前(即句首)加Don’t.
Don’t talk in class! 不要在课堂上讲话！
Don’t open the window! 别开窗！
Don’t be late for school! 上学别迟到
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。
_________________________________
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.
Library Rules
Don’t talk.
__________________
__________________
__________________
3a Write the rules for the
school library.
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.
1. 根据例句，可知要求我们造一般疑问句并根据实际情况进行回答。
2. 先确定句子的主语。
3. 再确定用情态动词还是用助动词来构成疑问语序。
4. 根据实际情况做出肯定或否定回答，答语的主语要与问句保持一致。
方法指导
2. Eat (he/have to/in the dinning hall)
Q: __________________________
A: __________________________
Listen to music (we/can/in the hallways)
Q: __________________________
A: __________________________
4. Wear a hat (we/can/in the classroom)
Q: ________________________
A: ________________________
2. Eat (he/have to/in the dining hall)
Q: ________________________________
A: _____________
3. Listen to music (we/can/in the hallways)
Q: ________________________________
A: _____________
4. Wear a hat (we/can/in the classroom)
Q: _____________________________
A: ____________
Then answer the questions.
Yes, he does.
Does he have to eat in the dining hall
Can we listen to music in the hallways
No, we can’t.
Can we wear a hat in the classroom
No, we can’t.
At my dream school, we don’t have to come to school every day. …
We can eat in class. …
3c Make up five cool rules for your dream school. Share your rules with the class. Your classmates vote for the Coolest School!
We don’t have to wear school uniforms. …
We can listen to music in class. …
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.
Great! Jim’s school is the coolest.
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
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
Homework
1. Remember the sentences in the
Grammar Focus.
2. Write five rules in your family.