Unit 4 Don’t eat in class SectionA（3a-3c）课件

新课标 七年级下
Don't eat in class
1.学生能够使用can , can’t, have to ,must, 祈使句
谈论规章制度。
2.学生能够掌握并运用对话当中呈现的词汇,能复
述和模仿对话。
3.没有规矩不成方圆，做一个遵规守纪的好学生。
学 习 目 标
Be polite to each other. Wear school uniform. Don’t be late for school.
Don’t say rude remarks in school. Don’t eat snacks in class. Don’t shout in class.
说唱下列歌谣：
Rules
餐厅规则
校规
class rules
班规
违反规则
keep rules
break rules
遵守规则
What rules do you know in your school?
dining rules
school rules
what else？
Don't fight.
We must arrive
at school on time
Don't run in
the hallway.
We have to wear
school unform
We can't bring
mobile phone
to school
We can't bring
snacks to school
We must listen to the teacher carefuiiy

We can't eat in the classroom.
Don't sleep
in class.
We have to clean
the classroom.
Don't listen
to music in
the classroom.

Don't talk
in class .
Don't make your table dirty.
Don't cut in line when getting lunch.
Don't take food out.
Don't waste food.
We must save water.
Don't talk loudly when have lunch.
1. A: What are rules in our school?
B: We must be on time for class.
2. A: Can we …?
B: Yes, we can. / No, we can’t. We must…
3. A: Do we have to …?
B: Yes, we do. / No, we don’t.
Talk about our school rules
There are many in our school. we must ______
_______________. We can't _______ ,
and we can't _________________. We mustn't______.
We can't ____________, but we can _______________.
We can keep these rules and make our school better .
rules
at school on time
fight
arrive
bring mobile phone to school
bring snacks to school
run on the playground
run in the hallways
How to express rules?
Rules
Do you know the rules for the school library?
No talking!
Don’t talk.
Be quiet.
Don’t take photos here.
Do you know the rules for the school library?
No photos !
We can’t take photos here.
Do you know the rules for the school library?
Don’t eat or drink.
We can’t eat or drink anything.
No eating or drinking.
Don’t listen to music.
Do you know the rules for the school library?
We can't listen to music.
No music.
“No+ V-ing”的祈使句，通常用于公共场所禁止、警告的提示语，尤其是用在标牌、布告等，表示“禁止做某事”。例如：
No parking! 不准停车！
No smoking, please! 请勿吸烟！
也可用 No + 名词的形式。例如：
No photos! 禁止拍照！
Tips
Guessing Game
Don’t smoke!
No smoking!
Don’t park your car !
No parking !
Guessing Game
Don’t eat !
No food !
Guessing Game
Don’t swim
No swimming.
Guessing Game
课文展现
Write the rules for the school library.
Library rules
1. ___________________
2. ___________________
3. ___________________
4. ___________________
3a
Don’t listen to music.
Don’t eat or drink.
Don’t talk.
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。
Let’s talk about your library rules
A: Do you have a library at school?
B: Yes, we do. And we have a lot of ______ in the
library.
A: Really? What are some of the rules?
B: We have to __________ . We can't _____________
or____________, and we mustn't ___________.
keep quiet
eat anything
listen to music
take photos
rules
Grammar Focus
Don’t run in the hallways. Don’t fight.
What are 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.
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.
_______________________________
一、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.
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？
_____________________________
Can we wear a hat in class?
No, we can’t, but we can eat in the dining hall.
Can we eat in the classroom?
一、阅读Grammar Focus部分，完成下列句子。
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.
一、阅读Grammar Focus部分，完成下列句子。
一、祈使句
1）定义：又叫命令句，用来表示请求、命令、劝告或禁止等语气，句末用叹号或句号。
2）特点：
① 通常省略主语you,也就是
听话者。
② 谓语动词没有人称、数的
变化，时态为一般现在时，因此
以动词原形开头。
为了使表达更礼貌，更客气，常在句首或句末加上please，若在句末加please，之前要用逗号隔开。
Tips
二、探究乐园
3) 祈使句的用法
Wash your hands.
表“命令 ”
Please be quiet
表“请求”
3) 祈使句的用法
Be polite and kind.
表“劝告、建议”
Watch your step
表“警告”
3) 祈使句的用法
No Swimming
表“禁止”
⑴ 肯定祈使句的常见句型结构：
① Do型: 动词原形+宾语+其他.
e.g. Open the door, please.
② Be型: Be+表语(名词或形容词).
e.g. Be quiet!
Be a good boy!
4）句子结构
祈使句有肯定祈使句与否定祈使句两种。
有时，为了加强语气,可以在动词之前加do，意思为“一定，务必” 等。
Do sit down.
务必请坐。
Do study hard.
一定要努力学习。
Tips
③ Let型：（有两种）
a. Let + 宾语 + 动词原形 + 其他.
e.g. Let me help you.
b. Let’s + 动词原形 + 其他.
e.g. Let’s play tennis.
let's VS let us
let's...意思是"让我们..." ，表示建议，通常包括听话者在内。
let us ... 意思是"让我们..." ，不包括说话的对象，常表示请求。
e.g. Do you like the movie? let's enjoy it together.
e.g. Let us see the movie if you don't like it .
重点提醒
.
.
⑵ 否定祈使句的常见句型结构：
（祈使句的否定形式一般在句首加don't。）
① Do型的否定式：Don’t + 动词原形 。
Don’t forget me.
② Be型的否定式： Don’t + be+其他.
Don’t be late.
有时为了加强否定语气，也可在句首加上never，表示“决不”。
Never leave today's work for tomorrow.
Tips
③ Let型的否定式：（有两种）
a. Don’t + let + 宾语 + 动词原形 + 其他. (宾语是第三人称)
Don’t let him go back.
b. Let’s + not + 动词原形 + 其他.(宾语是第一人称)
Let’s not go swimming.
④ 警示语：No+名词 / 动词-ing形式. 如：
No photo ! No talking.
一般来说，祈使句总是以动词原型开头，但有时在口语中，为了表达简洁，直接用名词或短语来表示祈使句的意义，如：
eg: 救命！
Help！
请等一会。
One moment, please.
举起手来。
Hands up!
5）祈使句的省略
二、情态动词can的用法
1) 表示能力 “会, 能”
Can?you?play?the?guitar? 你会弹吉他吗？
Jim?can?speak??Chinese.吉姆会说中文。
2) 表示允许、许可, “可以”、“能”
Can?the?students?run?in?the?hallway ？
We?can?eat?outside.? 我们可以在外面吃东西。
注意: 和大部分情态动词一样, 变否定句, 直接在can后加上not, 在疑问句中, 把can放到主语前面, 并且没有人称和数的变化。
三、have to的用法
表示客观的必要性：“必须，不得不”，在一定意义上与must可以互换。must没有人称，数和时态的变化。have to有人称，数和时态变化。
We have to do homework after school.
She has to be quiet in the library.
Do you have to go to school on time?
They must be on time for class.
注意:
have to在否定句中, 直接在have to前面加don’t/doesn't, 在一般疑问句中, 在主语前面加助动词do/does, 有人称，数和时态的变化。
四、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. Be quiet? (she/have to /in the library)
Q: Does she have to be quiet in the library?
A: Yes, she does.
Use the words to make questions about the rules. Then write answers according to your school.
3b
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
应与问句保持一致。
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: ____________
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.
Now, it’s your turn!
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. …
3c
Practice
At my dream school, we don’t have to come to school every day.
We can eat in class.
We don’t have to wear school uniforms.
We can listen to music in class.
At my dream school ,
We can __________________.
We can’t _________________.
We don’t have to __________.
We don’t have to __________.
We have to /must _________.
Make up the cool rules for your dream school(理想).
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.
Great! Jim’s school is the coolest.
Discuss and make rules for the computer room in your school.
Computer Rules
_______________
_______________
_______________
________________
________________
Discission
We must be quiet in the computer room.
Don’t run in the computer room.
Don’t eat or drink in the computer room.
Wear slippers in the computer room.
Computer room Rules
___________________________________
___________________________________
___________________________________
___________________________________
___________________________________
Be quiet in the computer room.
Don’t eat or drink in the computer room.
Don’t run in the computer room.
Wear slippers in the computer room.
Clean the computer room every day.
一、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
Exercise
二、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 theclassroom.
4. Please ______ (arrive) at school on time (准时).
5. John is often late for _____ (class).
class
listen
clean
wear
arrive
Exercise
三、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
Exercise
1. He has to eat breakfast quickly. (改为一般疑问句)
__________________________________
2. Play volleyball after class. (改为否定句)
________________________________
3. We can wear sports shoes in class. (改为一般疑问句）
______________________________
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)
————————————————————
句型转换
Does he have to eat breakfast quickly?
Don’t play volleyball after class.
Can we wear sports shoes in class?
We must be on time for class.
What does Eric have to do before six?
Exercise
1. _____ talk in the reading room.
A. Don't B. Not C. No
2. - Let’s ____ volleyball.
- That sounds good
A. play B. to play C. plays D. to plays
3. We are at the library . Please ___ quiet .
A. do B. be C. can D. are
选择填空
A
B
B
Exercise
课时重点回顾
Summary
1. 情态动词can, have to的用法。
2. 肯定祈使句和否定祈使句祈使句的常见句型
结构。
3. 通过谈论校规、家规及图书室规则， 进一
步掌握祈使句的用法，学会拟定规则，逐
渐养成自觉遵 守校纪班规的好习惯。
Homework
假如你是学校的校长,你想制订哪些校规,将其记录并尝试告诉学生你的想法。
Dear students,
In order to have a good environment (环境), we should have some rules in our school. Here are some suggestions, we hope that all of us can have a look at them.
1. Don't sleep in class.
2. Clean the classroom every day.
3. __________________________
4. __________________________
5. __________________________
6. __________________________
Yours ____
谢谢
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