Unit 7 Teenagers should be allowed to choose their own clothes Section A（共44张PPT）

(共44张PPT)
Unit 7
Teenagers should be allowed to choose their own clothes.
Talk with your classmates about your school rules by using “students are not allowed to…”.
School rules
Don’t arrive late
for school.
= Students are not allowed to arrive late for school.
Don’t run in
the hallways.
School rules
= Students are not allowed to run in
the hallways.
School rules
Don’t eat in
the classroom.
= Students are not allowed to eat
in the classroom.
School rules
Don’t listen to music
in the classroom.
= Students are not allowed to listen to music in the classroom.
School rules
Don’t fight with others.
= Students are not allowed to fight
with others.
School rules
= Students are not allowed to cheat.
Don’t cheat.
School rules
Don’t wear
long hair. (boys)
= Boys are not allowed to wear long hair.
School rules
= Students are not allowed to sleep in
class.
Don’t sleep
in class.
I don’t think sixteen-year-olds I agree. They aren’t
should be allowed to drive. serious enough.
Do you think teenagers should be No, I don’t agree with
encouraged to make their own this. Teenagers are too
decisions young to make their
own decisions.
Teenagers should not be allowed I disagree. They can learn
to have part-time jobs. a lot from working.
Do you think we may be allowed If you don’t use a flash,
to take some photos if we don’t then it may be OK.
use a flash
Grammar
Focus
一般现在时的被动语态
在英语中，动词有两种语态，即主动语态和被动语态。被动语态的基本结构是“助动词 be + 及物动词的过去分词”，其中助动词be有人称、数和时态的变化,其变化规则与be作为连系动 完全一样。
1.一般现在时被动语态的各种句式结构
肯定式 主语+am/is/are+过去分词（ + by…)
否定式 主语+am/is/are + not +过去分词 (+by…)
疑问式 Am/Is/Are+主语+过去分词(+ by …)
特殊疑问词+ am/is/are+主语+过去分词（+ by ...)
被动不离“be” “p.p.”, “p.p.”前面助动be。
主谓一致莫忘记，am, is, are现在时。
2.一般现在时被动语态的基本用法
用法 示例
表示经常性或习惯性发生的被动动作 I am often asked the question by my pupils.
表示近期正在发生的被动动作 These days people are moved by a teacher named Zhang Lili.
描述某种常态化的被动的客观事实 The spaceship is mainly controlled by computer.
强调目前存在的针对行为主体人的被 限制性动作
You aren’t allowed to take photos.
3.主动语态变为被动语态的方法
第一步:将主动语态的宾语改为被动语态的主语；
第二步:将主动语态的谓语改为“be+及物动词的过去
分词”结构；
第三步:将主动语态的主语改为介词by的宾语，放在
谓语之后(有时可省略)。
如图示：
They (主语）grow (谓语）tea (宾语）in the south-east of China.
被动语态:
主动语态:
Tea (主语）is grown (谓语）by them in the south-east of China.
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+被动语态的一般疑问句？ Who should be asked for help
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”。
We can write Letters can be written
letters in English. in English by us.
改为被动语态
4a Rewrite the sentences according to the example.
1. You must clean your bedroom every day.
Your bedroom must be cleaned every day .
2. Parents should encourage teenagers to do social work for their community.
Teenagers _____________________________
_____________________________ .
should be encouraged to do social
work for their communit
3. Can Lucy do her homework tomorrow instead
Can________________________________
__________________________________
Lucy’s homework be done by her
tomorrow instead
Do you think we must keep teenagers away from the Internet
Do you think teenagers _______________
__________________________
must be kept away
from the Internet
5. Parents should give teenagers chances to make their own decisions.
Teenagers _____________________________
________________________ .
should be given chances to make
their own decisions
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 ____________(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
be asked
are allowed
be educated
start
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
4c You and your friend are starting
an English club. Make a list of rules
about what should and should not be allowed.
A: Members should be allowed
to use dictionaries.
B: Yes, but they should only use
English-English dictionaries.
Are there any other rules about what should and what should not be allowed in the English club Can you tell us
Language points
Do you think teenagers should be encouraged to make their own decisions 你认为应该鼓励青少年自己做决定吗？
make one’s own decision 意为“自己做决定”，相当于make a decision for oneself。
例：I just want to make my own decision.
我只想能够自己做决定。
2. Parents should give teenagers chances to make their own decisions. 父母应该给青少年自己做决定的机会。
chance (a suitable time or situation when you have the opportunity to do sth.) 可数名词，意为“机会；机遇”，其后可接to do sth.或of sth.。若表示“做某事对某人来说是一次机会”，其后可接for sb. to do sth.。
例：I never miss a chance to play football.
我从不错过踢球的机会。
It’s a good chance for you to meet.
这是一个你们见面的好机会。
3. This way, when they _______(start) working they can manage their own lives.
这样，当他们开始工作时，他们能应付他们自己的生活。
manage 意为“完成(困难的事);应付(困难) 局面”， 其后可接名词、代词或动词不定式。
例：I’m not sure how we will manage it.
我不确信我们将如何完成这件事。
You should manage to finish the work in
time.
你应该设法及时完成工作。
manage to do sth. 与 try to do sth.
manage to do sth. “设法做成某事”，强调结果。暗含“做成了某事”之意。
try to do sth. “尽力做某事”，表示“尽力做，设法做”，强调动作，不表结果。
例：The shirt was very dirty, but he managed
to clean it.
这件衬衫很脏，但他设法把它洗干净了。
The boy tried to move the stone but failed.
这个男孩试图移动这块石头，但失败了。
Ⅰ.单项选择
Teenagers ____allowed to drive a car.
A. should not be B. should be not
C. not should be D. shouldn’t
2. Linda saw a pen on the road, so she stopped ____it up.
A. pick B. to pick
C. picking D. picked
A
B
3. Yesterday my sister had her computer
____at the supermarket.
A. mend B. to mend
C. mended D. mending
4. He never studies. He plays computer
games all day____.
A. instead B. instead of
C. however D. but
C
A
5. --Can you hear me
--No, I can’t. Would you please speak ____.
A. clearly enough B. clear enough
C. enough clearly D. enough clear
6. Old people must ____.
A. speak polite B. be spoken to politely
C. speak to polite D. be spoken politely
A
B
7. Things should ___ here before you enter the Great Museum.
A. keeps B. keep
C. be kept D. are kept
We won’t allow ____ in the cinema. But you are allowed ____in the restroom.
A. smoking; smoking B. to smoke; to smoke
C. smoking; to smoke D. smoke; smoke
C
C
9. --I think you should phone Jenny and say
sorry to her.
--____. It was her fault.
A. Not at all B. Not possible
C. No chance D. No way
10. I think some of the school rules should
____.
A. be change B. be changed
C. be changing D. change
D
B
11. --Do you believe there are aliens
--I’m afraid not. I don’t think aliens ____
in space.
A. can find B. can be found
C. can be founded D. can’t be founded
12. The flowers must ____ every day.
A. water B. be watered
C. watered D. watering
B
B
13. --Can sixteen-year-olds drive their cars to
school
-- No. they shouldn’t ____ to drive because
they are not serious enough.
A. allow B. allowed
C. be allowed D. have allowed
14. Don’t worry. The work ____ in two days.
A. will finish B. is done
C. will be finished D. finish
C
C
15. _____ middle school students allowed to
use mobile phone at school
A. Do B. Did
C. Are D. Can
16. I don’t think teenagers should be allowed to drive , because they are _____.
A. not enough serious B. not serious enough
C. too serious D. to serious
C
B
17. Water ______ into ice.
A. will changed B. must be changed
C. should change D. can be changed
18. A strange sound ______ yesterday evening.
A. was heard B. hears
C. heard D. is heard
D
A
19. The new play _______ in theatre now.
Why don’t you go in and see it
A. is being shown B. is showing
C. is shown D. shows
20. Miss Chen ______ just ______ to speak
at the meeting.
A. has …been asked
B. has been …asked
C. have been … asked
D. have …been asked
A
A
Ⅱ. 用所给词的适当形式填空
Children shouldn’t be allowed
__________ (swim) in the river.
2. I don’t think teenagers should get their ears __________ (pierce).
3. We are tired, so we stop __________(have) a rest.
4. I think your idea isn’t good. I ______________(agree) with you.
to swim
pierced
to have
don’t agree
5. When _____ (be) the first man-made satellite ________(send) up into space
6. Last year vegetables ___________ (grow) in the garden by Tom and he ______ (sell) them himself.
7. How many magazines _________________ (can borrow) in your library every week
8. John ___________ (hear) to go upstairs two hours ago.
was
sent
were grown
sold
can be borrowed
was heard
Homework
Master what you have learned
in this lesson. Learn to make
sentences with “情态动词+be
+及物动词的过去分词”.