Unit 7 Teenagers should be allowed to choose their own clothes. Section A Grammar Focus-4c 课件(共18张PP

(共18张PPT)
人教新目标Go For It九年级英语全册
Unit7
Teenagers should be allowed to choose their own clothes SectionA Grammar Focus-4c
What can you do at school
What can’t you do at school
Do you agree or disagree
Free talk
Rewrite the sentences according to the example.
1. You must clean your bedroom every day.
Your bedroom must be cleaned every day .
2. I will do the housework in the afternoon.
The housework will be done in the afternoon.
4a
2. Parents will encourage teenagers to do social work for
their community.
Teenagers ____________________________________________.
3. Can Lucy do her homework tomorrow instead
Can _________________________________________________
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 ____________________________________________
to do social work for their community
will be encouraged
Lucy’s homework be done by her
tomorrow instead
away from the Internet
must be kept
chances to make their own decisions
should be given
Grammar Focus
Read the following sentences and find out the common features.
I don’t think sixteen-year-olds should be allowed to drive. I agree. They aren’t serious enough.
Do you think teenagers should be encouraged to make their own decisions No, I don’t agree with this. Teenagers are too young to make their own decisions.
Teenagers should not be allowed to have part-time jobs. I disagree. They can learn a lot from
working.
Do you think we may be allowed to take some photos if we don’t use a flash If you don’t use a flash, then it may be OK.
should/ may + be + done
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.定义
含情态动词的被动语态用来说明某个被动性动作所反映出的
感情和态度。初中阶段的常见情态动词有：can, may , need , must ,
should等。
2.构成：情态动词+be+过去分词
eg:More trees should be planted in the town.镇上需要种更多的树。
Tables can be made of stone or wood.桌子可以由石头或木头制成。
含情态动词的被动语态
Grammar
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
句式 结构 示例
肯定句 主语+情态动词+be+及物动词的过去分词(+by…) Teenagers should be allowed to go shopping.
否定句 主语+情态动词+not+be+及物动词的过去分词(+by…) The word can’t be used in this sentence.
一般疑问句 情态动词+主语+be+及物动词的过去分词(+by…) Must the work be finished today
特殊疑问句 特殊疑问词+情态动词+主语+be+及物动词的过去分词(+by…)？ Who should be asked for help
3.句式
Grammar
“同意”
I agree; I can’t agree more; I approve;
You are right; I have the same idea with you;
of course; I think so.
“不同意”
I disagree; I object; I don’t think so; No way；
I don’t agree with this.
“同意”与“不同意”的常用短语
拓展
Should teenagers __________(ask) to move out when they start working In many Western countries, teenagers ____________
(allow) to move out at eighteen. Their parents believe that they should be educated to take care of themselves from a young age. This way, when they _______(start) working they can manage their own lives. However, in most Asian societies, it is not common for teenagers to _______(move) out. Chinese parents believe that it is better for children to live with parents who can _____(take) care of them. But the young should then look after their parents as they get older. That is why many Chinese adults ________(continue) to live with their parents.
be asked
are allowed
start
move
take
continue
4b
Fill in the blanks with the correct forms of the words in brackets.
do social work for their community
为他们的社区做社会福利工作
keep ... away from ...
避免……接近……；使……远离……
give sb. a chance to do sth.
给某人一个机会做某事
make one’s own decision(s) 自己做决定
move out 搬出去
be educated to do sth. 被教育做某事
from a young age 从小
manage their own lives 成功应对他们自己的生活
Language points
1.—Tom is always careless with his schoolwork. Could you help him
—No problem! I think he ______ to think twice before starting.
A. should be told B. can tell C. should tell D. can be telling
2. High technology is used in EURO 2016 to __________ the matches are
fair enough in France.
A. make up　 B. make sure C. come out　 D. come over
3. —Did you talk back to your mother when you were a child
—Yes. But now I realize I was wrong. I really regret __________ that silly
thing to my mom.
A. do　 B. to do　 C. doing　 D. did
A
B
C
Great works are performed not by strength but by perseverance
should turn
1.The lights should be turned off before you leave the classroom.(改为主动语态)
You ______ ______ off the lights before you leave the classroom.
2.I can't hear her sing.(改为被动语态)
She can't ______ ______ ______ sing.
3.Should we throw waste paper everywhere (改为被动语态)
______ waste paper ______ ______ everywhere
4.Books should be put into the desk.(对画线部分提问)
______ ______ books ______ ______
be heard to
Should be thrown
Where should be put
Great works are performed not by strength but by perseverance
1. We learned how to express agreement and disagreement.
I agree.
I agree with this.
I agree/think that … because …
I think so.
I disagree.
I don’t agree with this.
I don’t agree/think that … because …
I don’t think so.
Summary
Great works are performed not by strength but by perseverance
请思考：
含有情态动词的被动语态的谓语结构：
肯定形式：__________________________________
其否定形式为：__________________________________
一般疑问句：____________________________________
情态动词+be+及物动词的过去分词
情态动词+not+be+及物动词的过去分词
情态动词+主语+be+及物动词的过去分词
Summary
Read all the sentences and fill in the blanks.
Great works are performed not by strength but by perseverance
情 态动 词
被 动语 态
肯定句：
否定句：
一般疑问句：
句子结构
易错点
主+情态动词+be +done +其他
主+情态动词+not+be+done+其他
情态动词+主+be+done+ 其他
1.表达否定时，“not”接在情态动词后。
2.疑问句中， 情态动词后紧跟主语。
summary
Homework
1. Remember the new words and expressions
in 4c.
2. Review the passage in 3a on page 51.