(共20张PPT)
Unit 7 Teenagers should be allowed to choose their own clothes
Grammar Focus-4c
一、语言能力
通过观察Grammar Focus中句子能总结出含情态动词被动语态的句子结
构。学会should，may用于被动语态的句子以及表示同意或不同意的表达
用语及其运用。
二、学习能力
通过在学习中积极与他人合作，保持学习英语的兴趣，能在学习过程中积
极思考和主动探究。
三、文化意识
能够通过本课时的学习，了解中西方在教育下一代的问题上不同的观念
和做法，尊重文化差异。
四、思维品质
能够在老师的引导下,通过观察,归纳等课堂活动,探究含有情态动词的被
动语态结构以及主动语态与被动语态的互换，提高思维的逻辑性与深刻性。
Let’s enjoy the song,then finish the lyric.
1.There’s nothing you can do
that __________.
can’t be done
2.Nothing you can sing
that ___________.
can’t be sung
There’s nothing you can do that can’t be done.
Nothing you can sing that can’t be sung.
含有情态动词的被动语态
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 photos if we don’t use a flash If you don’t use a flash, then it may be OK.
I don’t think sixteen-year-olds should be allowed to drive. I agree. They aren’t serious enough.
Grammar Focus
含有情态动词的被动语态：
情态动词+be+动词的过区分词
Find the passive voice
find out the common features.
can/
could
may/
might
will/
would
shall/
should
must
ought
to
情态
动词
1.情态动词无时态和人称的变化；
2. 情态动词后加动词原形
1. Teenagers should be allowed to buy their own clothes.
2. Teenagers should be allowed to go out with friends.
3. Teenagers should not be allowed to get their ears pierced.
4. Teenagers should not be allowed to have part-time jobs.
5. Should we be allowed to eat in the class
6. Should we be allowed to run in the hallways
先把下列句子分类，总结句型结构
肯定句： + + + +其他内容
否定句： + + + + +其他内容.
一般疑问句： + + + + 其他内容？
主语
情态动词
be
done
主语
情态动词
not
be
done
情态动词
主语
be
done
肯定句
否定句
一般疑问句
一、被动语态的结构(含有情态动词)
二、一般现在时的被动语态
肯定句：主语+be(is/am/are)+过去分词+(by……).
否定句：主语+be(is/am/are)+not+过去分词+(by……).
一般疑问句：Be(is/am/are)+主语+过去分词+(by……)？
特殊疑问句：特殊疑问词+一般疑问句？
如：这辆汽车是中国制造的。The car ________ in China.
这辆车不是中国制造的。The car ________ in China.
这辆车是中国制造的吗？ _____ the car _____ in China
这辆车什么时候在中国被制造的？When _____ the car _____ in China
is made
isn’t made
is made
Is made
三、一般过去时的被动语态
肯定句：主语+be(was/were)+过去分词+(by……).
否定句：主语+be(was/were)+not+过去分词+(by……).
一般疑问句：Be(was/were)+主语+过去分词+(by……)？
特殊疑问句：特殊疑问词+一般疑问句？
如：这房子是1967年建的。The house ________ in 1967.
这房子不是1967年建的。The house ___________ in 1967.
房子是1967年建的吗？ ______ the house ______ in 1967
这房子是什么时候建的？When ______ the house ______？
was built
wasn't built
Was built
was built
用被动语态改写下面三个句子。
1. He cleans his bedroom every day.
2. He cleaned his bedroom yesterday.
3. He should clean his bedroom in the morning.
His bedroom is cleaned by him every day.
His bedroom was cleaned by him yesterday.
His bedroom should be cleaned by him in the morning.
____________________________________
__________________________________
____________________________________
Practice
Ⅰ.用括号中所给单词的适当形式填空
1.Apples, cabbages and onions should (grow) widely in the area.
2.Must the work (finish) by 4:00 this afternoon
3.There is something wrong with the machine. It should
(fix) at once.
4.Thanks to the Internet, different kinds of information can
(learn) in a short time.
5.I think our ideas should (exchange) as soon as possible.
6.Five different kinds of food must (mix) to make the soup.
7.The stars can’t (see) in the daytime.
8.Can this kind of bike (buy) in that shop
9.The fruit should (keep) well during winter.
10.Should I (allow) to make my own decisions
be grown
be finished
be fixed
be learned/learnt
be exchanged
be mixed
be seen
be bought
be kept
be allowed
地区
机器
fix = repire修理
信息
交换
尽可能快
混合
做自己的决定
1. 判断是否被动(主语和动词关系);
2. 划出情态动词;
3. 情态动词+be+done
Rewrite the sentences according to the example.
You must clean your bedroom every day.
Your bedroom __________________________________________.
I will do the housework in the afternoon.
The housework will _______________________________________.
3. Parents will encourage their children to do social work for their community.
Children ________________________________________________.
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 ________________________________________________.
4a
must be cleaned every day
will be encouraged to do social work for their community by their parents.
be done in the afternoon
Practice
must be kept away from the Internet
should be given chances to make their own decisions
encourage sb. to do 鼓励某人做某事
社会的
社区
keep sb./ sth. away from...
使某人/某物远离…
机会
make one’s own decisions
自己做决定
保持 keep-kept-kept
给 give-gave-given
1. 判断是否被动(主语和动词关系); 2. 划出情态动词;
3. 情态动词+be+done
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 ________ (educate)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) careof 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.
4b Complete the sentences with the phrases in the box.
be asked
are allowed
be educated
start
move
take
continue
encourage sb to do sth 鼓励某人做某事
keep away from 远离
make one’s own decisions 自己做决定
move out 搬出去
take care of /look after 照顾
manage one’s own life 应付自己的生活
continue to do sth/continue doing sth 继续做某事
动词变形：什么时态？主动？被动？
You and your friend are starting an English club. Make a list of rules about what should and should not be allowed.
4c
Members in English club should (not) be allowed to ....
give an English speech
act out English plays
sing English songs
watch English movies
read English newspapers
read Chinese books
use the Chinese dictionary
You and your friend are starting an English club. Make a list of rules about what should and should not be allowed.
4c
Members should be allowed to use dictionaries.
Yes, but they should only use English-English dictionaries.
You and your friend are starting an English club. Make a list of rules about what should and should not be allowed.
4c
Members shouldn’t be allowed to speak Chinese.
I agree. Only in this way can you improve your English.
Summary
Key words
community, chance, educate, manage, society
Useful expressions
Sentences
①I don't think sxitee-year-olds should be allowed to drive.
②Do you think teenagers should be encouraged to make their own decisions
keep...away from, make one's own decision
Grammar
含有情态动词的被动语态
Homework
Need to do:用含有情态动词的被动语态，写出 3 条你认为合理的家庭规则并说明。
Choose to do:每条规则的理由（每条理由选择一条你不认同的家庭规则，用英语写一段简短的对话（3-4 句），模拟你与父母就此规则的沟通，对话中需包含含有情态动词的被动语态表达。
Thank you for listening
