Unit 7 Teenagers should be allowed to choose their own clothes. Section A Grammar Focus-4c课件(共22张PP

(共22张PPT)
Unit 7
Teenagers should be allowed to choose their own clothes.
Section A Grammar Focus-4c
What can you do at school
What can’t you do at school
Do you agree or disagree
Free talk
Grammar Focus
He
cleans
his bedroom
every day
His bedroom
is cleaned
by him
every day
动作执行者
谓语动词
动作承受者
其他成分
其他成分
动作执行者
动作承受者
谓语动词
主动语态
被动语态
主动语态转换为被动语态
Great works are performed not by strength but by perseverance
一般现在时的被动语态和一般过去时的被动语态，它们的结构为：
时态 被动语态结构
一般现在时 am/is/are + Vt-pp.
一般过去时 was/were + Vt-pp.
被动语态
Great works are performed not by strength but by perseverance
1. 将含有情态动词的主动语态变为被动语态的方法：
1) 将主动语态的宾语变成被动语态的主语；
2) 将“modal.v. + do”变成“modal.v + be + Vt-pp.”。
2. 含有情态动词的被动语态的句式结构：
1) 肯定式：S. +Modal.V + be + Vt-pp.
2) 否定式：S. + modal.v. + not + be + Vt-pp.
3) 疑问式：Modal.v + S. + be + V-pp. + 其他？
Great works are performed not by strength but by perseverance
Don’t run in
the hallways.
School rules
= Students are not allowed to run in the hallways.
Great works are performed not by strength but by perseverance
School rules
Don’t arrive late
for school.
= Students are not allowed to arrive late for school.
School rules
Don’t listen to music
in the classroom.
= Students are not allowed to listen to music in the classroom.
Great works are performed not by strength but by perseverance
School rules
Don’t fight with others.
= Students are not allowed to fight with others.
Great works are performed not by strength but by perseverance
School rules
= Students are not allowed to cheat.
Don’t cheat.
Great works are performed not by strength but by perseverance
School rules
Don’t eat in
the classroom.
= Students are not allowed to eat in the classroom.
Great works are performed not by strength but by perseverance
School rules
Don’t wear long hair. (boys)
= Boys are not allowed to wear long hair.
Great works are performed not by strength but by perseverance
School rules
= Students are not allowed to sleep in class.
Don’t sleep in class.
Great works are performed not by strength but by perseverance
1. You must clean your bedroom every day.
Your bedroom ________________________.
2. I will do the housework in the afternoon.
The housework ____________________________.
3. Parents will encourage their children to do social work for their community.
Children ______________________________________
______________________________________________.
will be done in the afternoon
4b Rewrite the sentences according to the example.
will be encouraged (by their parents) to do social work for their community
must be cleaned every day
Great works are performed not by strength but by perseverance
4. Do you think we must keep teenagers away from the Internet
Do you think teenagers _____________________________ _____________
5. Parents should give teenagers chances to make their own decisions.
Teenagers _____________________________________________.
Internet
should be given chances to make their own decisions
must be kept away from the
Great works are performed not by strength but by perseverance
Sample Dialogue
Grammar
Members shouldn’t
be allowed to
speak Chinese.
I agree. Only in this
way can you improve
your English.
Great works are performed not by strength but by perseverance
4c
1. Don’t smoke.
2. Don’t eat in the classrooms.
3. Don’t listen to music in the
classrooms or the hallways.
4. Don’t fight.
5. Wear school uniform.
Should we be allowed to …
I think we should be allowed to …
Look at the school rules below, discuss with your partner whether these rules are reasonable or not and why.
Grammar
Great works are performed not by strength but by perseverance
含有情态动词的主动句变为被动句时，谓语动词部分改为
“情态动词+be+及物动词的过去分词”。
注意
改为含情态动词的被动语态
We can write letters in English.
Letters can be written in English by us.
Great works are performed not by strength but by perseverance
1.I know what you mean, but I can ________ (应付) by myself.
2.Jeff often does some volunteer work in the __________ (社区) every month.
3. In modern _______ (social), traveling is a very common thing.
4.Our teachers always encourage us ________ (share) our feelings after reading.
5.The teacher tried his best to help and ________ (education) the weak boy.
一、根据句意及括号内的提示填写单词。
manage
community
society
to share
educate
Exercise
Great works are performed not by strength but by perseverance
二、句型转换。
1. You should make up the bed every day. (改为被动语态)
The bed ________ _______ _______ up every day.
2. We can’t see stars in the day time. (改为被动语态)
Stars _______ _______ _______ in the day time.
3. You must return the book on time. (改为被动语态的一般疑问句形式)
_______ the book _____ _________ on time
4. The machine can be used for washing dishes. (对画线部分进行提问)
_______ _____ the machine ______ used for
should be made
can’t be seen
Must
be returned
What can be
Exercise
Great works are performed not by strength but by perseverance
1.(2022广西贵港)—Mum, could I help you take out the rubbish
—Sure. But it ______ into different kinds for recycling first.
A. separates B. should separate
C. was separated D. should be separated
2.(2022贵州毕节)No matter how many difficulties we have, I
believe all the problems can ______ in the end.
A. solve B. be solved
C. answer D. be answered
Exercise
Great works are performed not by strength but by perseverance
Homework
Review the grammar we’ve learned today.
Preview 1a~1e on page 53.