(共23张PPT)
Section A Grammar Focus~4c
Unit 7 Teenagers should be allowed to choose their own clothes.
01
Learning
goals
03
Grammar
05
Homework
02
Warming
up
04
Exercise
Unit 7 Teenagers should be allowed to choose their own clothes.
Function: Talk about what you are allowed to do; agree and disagree
Grammar: The structure and expression of “ should + be allowed to”.
Curriculum words: community, chance, educate, manage, society
Useful expressions: keep…away from, make one’s own decision
Sentences:
In many Western countries, teenagers is allowed to move out at eighteen.
Do you think teenagers should be kept away from the Internet
Learning goals
What can you do at school
What can’t you do at school
Do you agree or disagree
Warming up
Grammar
Look at these sentences.
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 photos if we don’t use a flash If you don’t use a flash, then it may be OK.
Grammar Focus
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
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
(一)将主动语态的宾语变成被动语态的主语。
(二)将含情态动词的主动句式变成被动句式,即:“情态动词+动词原形”变成“情态动词+be+过去分词”,然后再在其后加“by+主动句中的主语(人称代词用宾格)”。by短语也可省略。eg:
You should finish your homework first.
→Your homework should be finished (by you) first.
You can take this magazine home.
→This magazine can be taken home (by you).
4.转变方法
Grammar
一般疑问句: 直接将被动语态的陈述句中的情态动词提前。
eg:Must this task be finished at once 这项任务必须立即完成吗?
注意: 含情态动词的被动语态的一般疑问句的回答,应保留原情态动词,但must表“必须”时,其否定回答应用needn’t;need表“必要”时,其肯定回答应用must。如:
— Must my exercise book be handed in now 我的练习本必须现在上交吗?
— Yes, it must. 是的,必须现在上交。
(No, it needn’t. 不,不必现在上交。)
5.句式变换
Grammar
否定句:在情态动词后面加上not或never即可,但must表“必要”时
否定式为needn’t。
eg:This task needn’t be finished at once.这项任务没必要立即完成。
特殊疑问句:由特殊疑问词加上被动语态的一般疑问句构成。
eg:When must this task be finished 这项任务必须在什么时候完成?
反意疑问句:借助情态动词构成附加疑问部分。如:
eg:This bridge can be built next year, can’t it 这座桥明年能建成,是吗?
5.句式变换
Grammar
Rewrite the sentences according to the example.
1. You must clean your bedroom every day.
2. I will do the housework in the afternoon.
3. Parents will encourage their children to do social work for their community.
Your bedroom must be cleaned (by you) every day.
Teenagers should be encouraged (by their parents) to do social work
for their community.
The housework will be done in the afternoon.
n.社区;社团
Grammar
4a
4. Do you think we must keep teenagers away from the Internet
5. Parents should give teenagers chances to make their own decisions.
Rewrite the sentences according to the example.
Do you think teenagers must be kept away from the Internet
Teenagers should be given chances (by their parents) to make
their own decisions.
避免接近;远离
n.机会;可能性
自己做决定
Grammar
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 ___________
(educate) 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
be educated
start
v.完成;应付
v. 教育;教导
Grammar
4b
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
Fill in the blanks with the correct forms of the words in brackets.
n.社会
Grammar
4b
You and your friend are starting an English Club. Make
a list of rules about what should and should not be allowed.
Members should
be allowed to use
dictionaries.
Yes, but they should
only use English-
English dictionaries.
Grammar
4c
Sample Dialogue
Grammar
Members shouldn’t
be allowed to
speak Chinese.
I agree. Only in this
way can you improve
your English.
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
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
1. I think one day books may __________ (replace) by computers.
2. Paper should not __________ (throw) away.
3. Books and CDs can ____________ (borrow) from the library.
4. Their work must __________ (finish) by four o’clock.
5. Your homework should ________ (do) by yourself.
6. These books mustn’t ________ (take) out of the reading room.
7. Should these food ________ (keep) dry
be replaced
be thrown
be borrowed
二、用所给动词的正确形式填空。
be finished
be done
be taken
be kept
Exercise
三、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
1.(2021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.(2021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
Homework
Review the grammar we’ve learned today.
Preview 1a~1e on page 53.
Unit 7 Teenagers should be allowed to choose their own clothes.
Thank You