Unit 4Don't eat in class Section A Grammar Focus-3c 课件 (共26张PPT)人教版英语七年级下册

(共26张PPT)
Unit 4
Don’t eat in class.
Section A (Grammar Focus~3c)
新课导入
Free Talk
Do you know the rules in these places
hospital
meeting room
gas station
1
2
能掌握情态动词can, have to 的用法
能熟练运用祈使句来表达规章制度
预习检测
1.“Please ________ your homework to school,” Mr. Wang says.
A.take B.make C.do D.bring
2.The sign (标记) “________” means that you can’t talk here.
A.No Talking B.No Photos
C.No Food D.Turn Right
3. — Can I wear a hat in class
— No, you ________.
A.can B.do C.don’t D.can’t
D
A
D
4.Gina always ________ school very early and
cleans the classroom.
A.arrives at B.arrives in C.gets D.gets at
5. — Don’t talk in class.
— ________.
A.No, you can’t B.Yes, I can
C.Yes, I do D.I’m sorry, I won’t
A
D
知识梳理
Language points
can 能，能够 （表示许可）
—Can I sit here 我可以坐这儿吗？
—No, you can’t.不, 你不能。
can 能，会 （表示能力）
—Can you play basketball 你会打篮球吗？
—Yes, I can.是的, 我会。
Language points
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.
探究一
祈使句和情态动词用于谈论规则
Can he/she… at school
What should we say to him/her
Free talk
Bob
Mary
Mike
Eric
John
Ms.Miller
请运用祈使句哦
Bob
Mary
Mike
Eric
John
Ms.Miller
1. Don’t arrive late for class.
You must be on time.
2. Don’t run in the hallways.
4. Don’t listen to music in class.
5. Don’t fight.
3. Don’t eat in the classroom.
You must eat in the dining hall.
Group work
全班分成A、B两组，分组
朗读Grammar Focus
Don’t run in the hallways. Don’t fight.
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 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.
3a Write the rules for the school library.
Library rules
1. Don’t talk.
2. __________
3. __________
________
4. __________
_______
Don’t eat.
Don’t listen
to music.
Don’t take photos.
Do you know the rules for the school library
No school bags!
No talking!
No wet umbrellas!
No listening to music!
No food!
3b Use the words to make questions about the rules.
Then write answers according to your school.
1. Be quiet (she/have to/in the library)
Q: Does she have to be quiet in the library
A: Yes, she does.
2. Eat (he/have to/in the dining hall)
Q: __________________________
A: __________________________
Listen to music (we/can/in the hallways)
Q: __________________________
A: __________________________
4. Wear a hat (we/can/in the classroom)
Q: ________________________
A: ________________________
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
Q: ________________________________
(he/ have to/ in the dining hall)
A: _________________________________
3. Listen to music
Q: ________________________________
(we/ can/ in the hallways)
A: ________________
4. Wear a hat
Q: _______________________________
(we/ can/ in the classroom)
A: _______________
Does he have to eat in the dining hall
No, he doesn’t. He can also eat outside.
Can we listen to music in the hallways
Can we wear a hat in the classroom
No, we can’t.
No, we can’t.
Then answer the questions.
当堂检测见DCF课件
活动小结
通过以上的活动可知，祈使句的否定句以1._____________开头，表示警告、禁止等，后面跟动词2.____________，其回答可以为3._________________。本单元用于谈论规章制度的情态动词有4._______、______、______等。
don’t
原形
Sorry, ….
can
must
have to
探究二
用can/have to/must等情态动词来
描绘梦想中的学校
3c Make up five cool rules for your dream school. Share your
rules with the class. Your classmates vote for the Coolest School!
At my dream school, we don’t have to come to school every day. …
We can eat in class. …
Pair work
Pair work
We don’t have to wear school uniforms. …
We can listen to music in class. …
……
Group work
请同学们在小组内和其他伙伴分享，并选出最受欢迎的校规。
Can we eat in the library
Can he listen to music in the library
Do you have to be quiet in the library
Does your brother have to wear school uniform
思考
have to 有人称和数的变化
I have to go to bed before 10:00.
She has to wear the school uniform.
当堂检测见DCF课件
活动小结
通过以上的活动，我们可以知道，have to不同于其他情态动词， 有1._____________________的变化，并且在变一般疑问句和否定句时必须借助2._______________________。
人称、数
助动词do或does
当堂检测
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 guitar every day.
have to
have to
has to
has to
一、用 have to 或 has to 填空。
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. Don’t arrive late for class. (改为同义句)
__________________________________
4. Eric has to do his homework before six.
(对划线部分提问)
___________________________________
二、句型转换。
Does he have to eat breakfast quickly
Don’t play volleyball after class.
We must be on time for class.
What does Eric have to do before six
课堂总结
祈使句的用法
can、have to、must的用法及区别
Unit 4
Section A (Grammar Focus~3c)