(共10张PPT)
Imperative sentences
祈使句
Don’t arrive late for class.
Don’t fight.
Don’t talk.
Get up now and make your bed.
概念：以____________开头，表示命令，请求，劝告
或建议的句子称为祈使句。
动词原形
祈使句的构成有如下几种情况：
一、祈使句的肯定式句型的三种类型
1. 以行为动词原形开头，简称Do型。如：
Please have a seat. 请坐。
Look at the blackboard, please. 请看黑板
2. 以动词Be开头，称为Be型
Be quiet, please. 请坐
Be a good child. 做一个好女孩儿
3. 以let开头，称为let型
Let me help you.
二、祈使句的否定式句型结构
1. Do型和Be型的否定式都是在句首加 don’t。
Don’t forget me! 不要忘记我！
Don’t be late for school. 上学不要迟到。
2. 以let 开头的祈使句,其否定式有两种：“Don’t + let+
宾语+动词原形+其他”或“Let+宾语+not+动词原形+
其他”
Don’t let him go. 别让他走。
Let them not play soccer. 让他们别踢足球。
【Practice makes perfect】
按要求完成下列各句，每空一词(含缩写)。
You must come here early tomorrow.
(改为祈使句)
_____ here early tomorrow!
2. Look at the picture! (改为否定句)
_________ at the picture!
3. Let her help you. (改为否定句）
_________ let her help you.
Come
Don’t look
Don’t let
【Practice makes perfect】
单项选择。
Please ______. The child is sleeping.
A. quiet B. don’t be quiet C. be quiet
2. Maria, _____ the dog, will you
Why ask me Tom is playing there.
A. to feed B. feed C. feeding
3. Let’s ______ chess. --Good idea.
A. play B. to play C. playing D. played(共38张PPT)
Unit 4
Section B
勇气就是在别人皆错时，你做对了。
Don’t smoke!
No smoking!
What’s the rule
Don’t listen to music in the classroom!
in the classroom
What’s the rule
Don’t eat in the classroom.
in the classroom
What’s the rule
Don’t take photos here.
No photos!
What’s the rule
Don’t arrive late for class.
What’s the rule
Don’t talk in the library!
No talking!
in the library
What’s the rule
Don’t arrive late for school.
What’s the rule
Don’t eat in the classroom.
You must eat in the dining hall.
What’s the rule
Don’t draw on the wall, please.
What’s the rule
Don’t have long hair for boys.
What’s the rule
Don’t fight.
What’s the rule
Library rules
1. Don’t talk.
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 eat 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.
Make up five cool rules for your dream school. Share your rules with the class. Your classmates vote for the Coolest School!
3c
1. We can eat in class.
2. We don’t have to come to school every day.
3. …
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.
Discuss and make rules for the computer room in your school.
Computer Rules
_______________
_______________
_______________
________________
________________
Computer Rules
___________________________________
___________________________________
___________________________________
___________________________________
___________________________________
We must 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.
1a Match the pictures [a-h] with the rules.
1._____go out 2. ______ see friends
3. _____ do his homework 4. _____ practice the guitar
5. _____ do the dishes 6. ______ watch TV
7. _____ help his mom make breakfast
8. _____ clean his room
a
h
c
e
b
g
d
f
1b Listen and put an x for things Dave can’t do and a√ for things he has to do.
Rules Have to/must
go out
see friends
do his homework
practice the guitar
do the dishes
watch TV
help his mom make breakfast
clean his room
√
√
√
√
x
x
x
√
can’t
1c Listen again. Write when Dave has to follow
the rules in the chart in 1b.Choose from the
phrases in the box.
on school night every Saturday before dinner
in the evening on school days after dinner
after school every morning
Rules When
go out
see friends
do his homework
practice the guitar
do the dishes
watch TV
help his mom make
breakfast
clean his room
after school
before dinner
after dinner
every morning
on school nights
on school days
in the evening
every Saturday
Tape scripts
Emily: Hi, Dave. Do you want to watch the basketball
game in the park this evening
Dave: I’d love to, but I can’t go out on school nights.
Emily: Oh, that’s too bad.
Dave: Yeah, I have so many rules…
Emily: Really
Dave: Yeah, I can’t see my friends on school days and
I have to do my homework after school.
Emily: What other rules do you have
Dave: Mmm… I must practice the guitar before dinner
and then I have to do the dishes after dinner.
And I can’t watch TV in the evening.
Emily: Oh. Well, I have to help my mom make dinner sometimes.
Dave: Me, too. I have to help my mom make breakfast every morning. And I must clean my room every Saturday.
Emily: Wow, you do have a lot of rules.
Read the letters. Underline the rules for Molly.
2b
Get up now and make your bed!
Don’t leave the dirty dishes in the kitchen.
I can’t be late.
Don’t be noisy, don’t eat in class.
I can’t play basketball after school.
I must read a book before I can watch TV.
I have to go to bed before 10:00.
1. Molly ____ play basketball on school days, but she ___ play it on weekends.
2. Molly ____ do her homework first when she gets home.
3. Molly ____ read a book after dinner before she ___ watch TV.
Read the letters again. Complete
the sentences with have to/must,
can or can’t.
can’t
can
must
must
can
2c
can, can’t, must, have to
1. Can you play basketball
2. I can’t go home now.
3. He must go home now.
4. She has to walk home.
Summary: can的意思是____ , can’t 的意思是
______, must “必须”, 没有人称和数的变化，变一般疑问句直接把must提前，have to _____, 有人称和数的变化，变一般疑问句和否定句时要用助动词_____。
能
不能
不得不
do
Read it again and complete the sentences with have to / must, can or can’t.
2c
Molly _____ play basketball on school days, but she
______ play it on weekends.
2. Molly _____ do her homework first when she gets home.
3. Molly _____ read a book after dinner before she _____
watch TV.
4. At school, Molly _____ be noisy or eat in class.
5. Parents and schools make rules to help students. So
students ________ follow the rules.
can’t
can
must
must
can
can’t
have to
too many 太多，用来修饰可数名词。
e.g. 动物园里孩子太多了。
There are too many children in the zoo.
too much 修饰不可数名词，还可修饰动词。
e.g. 我们有太多家庭作业。
we have too much homework.
他说太多了。
He talks too much.
much too 太，修饰形容词。
e.g. 这块手表太贵了。
The watch is much too expensive.
Don’t leave the dirty things in the kitchen.
leave (verb.) 丢下，落下
把某物落在某地：
eg: 1) 很抱歉赵老师，我把作业落在家了。
I’m sorry Mr. Zhao. I leave my homework at home.
2) 我把包落在车上了
I leave my bag in the car.
leave sth + 介词 + sp.
I can’t relax either.
relax ( verb.) 放松
eg: 你太紧张了，你要放松下了。
You are too nervous. You need to relax.
relaxing: (adj) “令人放松的”
The film is very relaxing.
relaxed: (adj.) 感到放松的
He is relaxed after listening to music.
But think about it.
think about “认为” = think of
你认为这部电影怎么样？
What do you think of / about this film
Extension: think of 还有关心，----为别人考虑,想起
Lei Feng always thinks of others.
Parents and schools are sometimes strict, but remember,
they make rules to help us.
strict (adj.) He is a strict teacher.
对某人要求严格
我的父母亲对我要求严格。
My parents are strict with me.
对某事要求严格
我们的老师对他的工作要求严格。
My teacher is strict in his work.
be strict with sb.
be strict in sth.
1. remember: 记得
remember doing sth. 记得做过某事，这个事情已经做过。
eg: I remember seeing him in the park.
2) remember to do sth. 记得去做某事，这个事情还没有做。
eg: Remember to turn off the lights before you go.
2. Good luck. 好运
luck. (n.) lucky ( adj.) luckily (adv.)
eg: He is a lucky boy.
Luckily, we pass the exam.
Section B
1. Some phrases:
go out, practice the guitar, practice doing sth,
do the dishes, help sb. do sth, on school days/ night,
too many, make one’s bed, leave sth sp, be noisy,
on/ at weekends, think about, follow the rules,
good luck
2. Some words:
can, can’t, must, have to, rememeber
Don’t run inside.
Don’t push.
Don’t litter.
Save electricity.
Save water.
Homework(共14张PPT)
Unit 4
Self Check
经验为你的未来
大厦添砖加瓦
Complete Zhao Pei’s letter to Dr. know using have to/must, can or can’t.
Dear Dr. Know,
___ you help me I’m not happy because there are too many rules at home. Every morning, I ____ get up at six o’clock. At school, I _______ wear a school uniform, and I ______ keep my hair short. After school, I ____ play with my friends or watch TV because I ______ do my homework. I _____ relax on weekends either because I _____ learn to play the piano. I never have fun, what ___ I do
Zhao Pei
3a
Can
must
must
have to
can't
have to
can't
must
can
Keep my hair short
keep sb. / sth + adj. 使某物处于某种状态
妈妈总是让家中保持整洁。
My mom always keeps the house clean and tidy.
2) 太多的工作使我忙碌和疲惫。
Too much work keeps me busy and tired.
Things I have to do Things I can’t do
I can’t go out on school nights.
I must do the homework first after school.
I can’t watch TV before I practice the piano.
I have to wear the uniform at school.
I have to keep my hair short.
I can’t see friends on school days.
I must get up before 6:30 and practice English.
I can’t be noisy or eat in class.
Complete the chart with the rules in your home and school. Put an × for the rules you think are unfair.
3b
Write a letter to Dr. Know. Tell him about all the rules and how you feel about them.
Dear Dr. Know,
__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Li Yan
Can you help me I’m not happy because there’re too many rules in my life. I must get up before 6:30 and practice English every morning. I can’t go out on school nights. I can’t meet friends on school days. I must do my homework first after school. I can’t watch TV before I practice the piano.
I have to wear the school uniform at school. I have to keep my hair short. I can’t be noisy or eat in class. What can I do
One possible version
Suppose you are the little mouse. Retell your story to your partners.
My name’s Timmy the Mouse. I must…
get up, 6:30
go to the kitchen
arrive late, get up
grandpa, be noisy
listen to, get me
strict with, follow
I . 根据括号内的要求完成句子, 每空一词(含缩写)。
1. We can get to the park at 8:00 am (改为否定句)
We ____ ____ to the park at 8:00 am.
2. I have to clean the room every day. (改为一般疑问句)
___ you ____ to clean the room every day
3. What else do you want to do (改为同义句)
What ____ ____ do you want to do
4. You can’t listen to music in class. (改为祈使句)
____ ____ to music in class.
Practice makes perfect
can’t get
Do have
other things
Don’t listen
Choose the correct answers.
1. --Where can we play football
--You can play ____.
A. outside B. in the dining hall C. in the hallways D. in the classroom
2. -- What ____ do you have to do after school -- I have to clean my room.
A. else B. others
C. any D. other
3. _____ listen to music in the classroom.
A . Not B. No
C. Don’t D. Can’t
4. I have to ____ my homework every night.
A. does B. do
C. did D. done
5. He has ___ rules in his house. A. too much B. much too
C. a little D. too many
6. We have to _____ uniforms at school A . put on B. in
C. wear D. have
7. These children have to go to bed _____ 10:00 pm.
A. in B. by
C. on D. with
8. I can’t go to the movies, ____ I have to do my homework.
A. so B. because
C. or D. but
Homework
