Unit 7 Teenagers should be allowed to choose their own clothes Section A Grammar Focus-4c课件(共33张PPT)

(共33张PPT)
老 师： XXX
班 级： XXX
Unit 7
Teenagers should be allowed to choose their own clothes.
Section A
(Grammar Focus-4c)
Contents
Lead in
1
Grammar
2
Practice
3
4
5
Exercises
6
Summary
Homework
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。
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。
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。
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。
学习目标
01
Lead in
The floor must be swept.
The face must be washed.
The bed must be made.
The teeth must be brushed.
What must be done at home as a child
Family Rules
Students shouldn’t be allowed to run in the hallways.
Students shouldn’t be allowed to eat in the classroom
Students shouldn’t be allowed to fight with others.
Students shouldn’t be allowed to arrive late for school.
What shouldn’t be allowed to do as a student
School Rules
被动语态
(passive voice)
一般现在时的被动语态
含有情态动词的被动语态
一般过去时的被动语态
am/is/are+动词的过去分词
was/were+动词的过去分词
Review

02
Grammar
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.
情态动词
can/
could
may/
might
will/
would
shall/
should
must
ought to
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
含有情态动词的被动语态的句式结构
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
易错点一
否定句: 主语+情态动词+not+ be+动词过去分词
Paper and water wasted by people.
A. will be not B. will not be
C. should be not D. should not be
2.In 2050, 2G used in the world.
A. will be not B. will not be
C. should be not D. should not be
表达否定时， “not”接在情态动词后。
1. Should classroom be cleaned by students
2. Must be my room cleaned by myself now
3. Should be food wasted by people
4. Can the homework be finished tomorrow
5. Can be moon seen at night
易错点二
一般疑问句: 情态动词+主语+ be+动词过去分词？
疑问句中，情态动词后紧跟主语。
Ture
or
False
my room be
food be
moon be
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 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 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 Must the work be finished today
特殊疑问句 Who should be asked for help
特殊疑问词+被动语态的一般疑问句？
Conclusion
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
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
含有情态动词的主动句变为被动句时，有如下步骤：
（1）把主动句的宾语变为被动句的主语；
（2）主动句中的谓语变为“情态动词 + be + 及物动词的过去分词”；
（3）主动句的主语在被动句中变为by的宾语；
（4）其他成分不变。
主动句：We should plant trees in spring.
被动句：Trees should be planted in spring.
含有情态动词的主动句与被动句之间的转换
03
Practice
Rewrite the sentences according to the examples.
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 __________________________________________________
_________________.
must be cleaned every day
should be encouraged (by their parents) to do social work for
be done in the afternoon
their community
4a
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 _______________________________________.
must be kept away from the Internet
should be given chances to make their own decisions
keep sb./ sth. away from“使某人/某物远离······”
chance n. 机会；可能性
Rewrite the sentences according to the examples.
4a
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. This way, when they _________ (start) working they can manage their own lives.
be asked
are allowed
start
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.
continue
move
take
v.完成（困难的事）；应付（困难局面）
4b
You and your friend are starting an English club. Make a list of rules about what should and should not be allowed.
4c
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.
04
Summary
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
05
Exercise
一.单选
C
1. We should manage ___________ our house.
A. do B. did C. to do D. doing
2. During the winter vacation, he wasn’t allowed __________ TV every day.
A. watching B. to watch C. watches D. watch
3. Teenagers are _________ young _________ make their own decisions.
A. so; that B. too; to C. such; that D. so; to
B
B
二. 用所给词的适当形式填空。
1. Their work must ____________ (finish) by four o’clock.
2. Your homework should __________ (do) by yourself.
3. These books mustn’t __________ (take) out of the reading room.
4. Should these food _________ (keep) dry
be finished
be done
be taken
be kept
三. 按要求完成下列各句每空一词含缩写。
1. We must do the work right now. (改为被动语态)
_______ _______ _______ _______ _______ right now.
2. Teenagers should be allowed to go out with their friends on school nights. (改为否定句 )
Teenagers _______ _______ _______ to go out with their friends on school nights.
3. A book should be read each month. (改为一般疑问句)
_______ _______ _______ _______ _______ each month
4. 你可以稍后考试。
You can _______ _______ _______ later.
5. 这项工作必须按时完成。
The work must _______ _______ on time.
6. 应允许青少年培养自己的爱好。
Teenagers _______ _______ _______ to develop their own hobbies.
shouldn’t be allowed
Should a book be read
The work must be done
take the test
be finished
should be allowed
06
Homework
Homework
Make a mind-map about what you have learned today.
What family rules do you like most and least Why
An hour in the morning is worth two in the evening.
一日之计在于晨。