(共34张PPT)
人教九全英语同步精品课件
人教版九年级全一册
Unit 7
Teenagers should be allowed to choose their own clothes.
Section A
Grammar Focus ~ 4c
Learning Goals
Warming Up
Grammar
Summary
Exercises
1
1
2
3
4
5
通过本课的学习,学生能够:
①掌握含有情态动词的被动语态的结构,主动形式表被动意义的情况以及不能使用被动语态的情况。
②能在具体生活情境中运用被动语态。
Learning Goals
Let’s Review
在英语中,动词有两种语态,即____________________。被动语态的基本结构是“______________________________”,其中助动词be有_______________ 的变化,其变化规则与be作为连系动完全一样。
前面我们已经学过了一般现在时和一般过去时的被动语态。
主动语态和被动语态
助动词 be + 及物动词的过去分词
人称、数和时态
Warming Up
主动语态变为被动语态的方法
I am often asked the questions by my pupils.
My pupils often ask me questions.
宾变主,谓被动,主语放在by后
主动语态
被动语态
被动语态的各种句式结构
肯定式 主语+am/is/are/was/were+过去分词( + by…)
否定式 主语+am/is/are/was/were + not +过去分词 (+by…)
疑问式 Am/Is/Are/Was/Were+主语+过去分词(+ by …)
特殊疑问词+ am/is/are/was/were+主语+过去分词(+ by ...)
时态 谓语动词形式
一般现在时 am/is/are+ done
一般过去时 was/were + done
一般将来时
现在进行时
过去进行时
现在完成时
过去完成时
过去将来时
will be done/ be (am,is,are) going to+ be done
am/is/are+ being done
was/were+ being done
have/has+ been done
had + been done
would be done/be(was,were)going to +be done
I don’t think sixteen year olds should be allowed to drive.
Do you think teenagers should be encouraged to make their own decisions
Teenagers should not be allowed to have part time jobs.
Do you think we may be allowed to take photos if we don’t use a flash
Presentation
观察书上表格,总结含有情态动词的被动语态的结构
含有情态动词的被动语态
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 make their own decisions.
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 homework be finished today
特殊疑问句 特殊疑问词+被动语态的一般疑问句? Who should be asked to do the job
The work must be done right now.
→Must the work be done right now ---Yes, it must./ No, it needn’t.
Where can the book be found
→The book can’t be found in the library.
这项工作必须立刻去做。
这项工作必须立刻去做吗?
这本书在什么地方能被找到呢?
这本书在图书馆找不到。
否定回答不用mustn’t,mustn’t表禁止
观察下列句子,说出主语和谓语动词的主被动关系。
Tea tastes delicious.
This kind of pen sells well.
→某些感官动词,如feel,sound,taste,smell,look用主动形式表示被动含义。
→表示主语的特征状态、属性的动词用主动形式表示被动含义。
更多主动形式表示被动含义的情况:
1. be worth doing,某事值得做
Wuzhen is a historic town and well worth visiting.
乌镇是一个历史悠久的小镇,值得一游。
2.need, require 等词表“需要”时后常跟-ing 表被动(=to be done)。
Pet dogs’ hair needs washing/to be washed often.
宠物狗的毛发需要经常清洗。
3. “be+adj.+todo”结构中,不定式表被动。
My new deskmate is easy to get along with. 我的新同桌很好相处。
Instant Training
1. 月饼不仅尝起来美味,而且寄托着人们美好的祝愿。
_______________________________________________________________
_______________________________________________________________
2. 这部关于母爱的电影非常值得一看。
_______________________________________________________________
3. 爸爸送给我的这支钢笔写起来很流畅。
_______________________________________________________________
The mooncake not only tastes delicious, but also carries people’s good wishes.
The film about mother’s love is really worth watching.
The pen from my father writes smoothly.
能使用被动语态吗?
不能使用被动语态的情况:
1. 不及物动词(词组)没有被动语态,如happen, appear等。
Hold on to your dreams and one day they will come true.
坚持梦想,总有一天它们会实现的。
2.系动词没有被动语态,如 look, sound, taste, smell, feel, become, get 等。
The sky becomes clearer after the rain.
雨后天空变得更晴朗了。
3. 某些表示状态的及物动词作谓语时,如 have(有), hold, cost, last 等。 The hall can hold 1,000 people. 这个大厅可以容纳 1000人。
Instant Training
1. 地震总是突然发生,所以我们需要学会如何自救。
Earthquakes always_____________ suddenly. So we need to learn how to save ourselves.
2.校园艺术节持续了三天,每位同学都展示了自己的风采。
The school art festival____________for three days, and every student showed themselves
happen
lasted
4a. Rewrite the sentences according to the example.
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 .
3. Parents will encourage their children to do social work for their
community.
Children____________________________________________
__________________________________________.
will be done in the afternoon
should be encouraged to do social work for
their community(by parents)
Practice
n. /k mju n ti/ 社区,社团
Do you think we must keep teenagers away from the Internet
Do you think teenagers____________________________________
Parents should give teenagers chances to make their own decisions①.
Teenagers_____________________________________________________
___________ .
must be kept away from the Internet
should be given chances to make their own decisions
(by parents)
keep sb. away from使某人远离……
4b.Fill in the blanks with the correct forms of the words in brackets.
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.② This way, when they _______(start) working they can manage their own lives.
be asked
are allowed
start
搬出去
manage to do 设法做成功
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.
move
take
continue
Production
1. Do you think teenagers should move out when they start to work
Talk with your partners and give your reasons.
2.4c.You and your friend are starting an English club. Make a list of
rules about what should and should not be allowed.
1.Parents should give teenagers chances to make their own decisions.
(重点)chance n. 机会;可能性
常用搭配:
①by chance 偶然;意外
② have a chance to do sth.=have a chance of doing sth.有机会做某事
③ have no chance to do sth.没有机会做某事
Language Points
Is there any chance of getting tickets for tonight
I met her by chance at the airport.
Chances belong to those people who are well prepared.
有可能弄到今晚的票吗?
我碰巧在机场遇见她。
机会属于准备充分的人。
返回
Instant Training
1.If you have a chance _____ in a university, you shouldn’t give it up.
A. study B. studying C. to study D. studied
2.The New Silk Road will offer a good ________ for more countries to communicate.
A. change B chance C. question
C
B
2.Their parents believe that they should be educated to take care of themselves from a young age.
educate v. 教育;教导
education n. 教育
→have a good education接受良好的教育
educational adj.有教育意义的
(比较级more educational最高级most educational)
This book is educational.
这本书很有教育意义。
返回
Instant Training
1.Children________to be honest from a young age.
A. should be educated B. should educate
C. may be educated D. may educate
2. I think the film The Battle at Lake Changjin is quite____________. We should love our motherland more.
A. meaningless B. educational
C. common D boring
A
B
一、单项选择
1. In many western countries, teenagers of age 18 can________of their parents’ houses.
A. move out B. move to C. move
2. Children should be________to do right things in public.
A. performed B. divided C remained D. educated
A
D
Exercises
3. — ______students ______to do morning exercises at school
—Yes. It’s good for their health.
A. Could; be asked B. Should; be asked C. Could; ask D. Should; ask 4. —When did you take this photo, John
—It ______in February when I was a volunteer in the home for the old.
A. takes B. would be taken C. might be taken D. has taken
5. —Do you think the students ______to take phones to school
—No. It is bad for their study.
A. should be allowed B. allow C. allowed D. are allowed
B
C
A
2.Kitty is writing an article about pollution. Help her complete the article using the passive voice.
Pollution is one of the biggest problems in the world today. In many places, rubbish (1) __________(throw) into lakes and rivers, so many of them (2) ____________ (pollute).
In some cities, the air (3) __________ (fill) with pollution. This makes people ill, and more people (4) _____________________________ (hurt) in the future if it is not cleaned up.
is thrown
are polluted
is filled
will be hurt/are going to be hurt
As well as people, animals (5) __________ (harm) by pollution. Land and water pollution kills many animals every year. If we do not act to improve the environment, more living things (6) ___________________ ___________(kill) by pollution.
However, there is some good news. A show (7) _____________________ _________(hold) at the town hall this Friday evening. All of us will have a chance to think about the world around us.
are harmed
will be killed/are going
to be killed
will be held/is going to
be held
On that day, we (8) __________________________________(show) how to protect the environment.
If we work together, we can make the world a better place.
will be shown/are going to be shown
2.Language Points:chance, educate, manage, community, keep away from
Summary
情态动词的被动语态构成
被动语态
主动形式表示被动含义
Modal Verbs(should,
could...) + Passive Voice(be done)
不能使用被动语态的情况
谢谢
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