(共29张PPT)
人教新目标版 九年级（全）
Unit7 Teenagers should be allowed to choose their clothes.
Period 3 Section A
Grammar focus-4c
语法课优质课
Presentation
Learning aims
1.学习本课新词汇: community, keep…away from, chance, make one’s own decision, educate, manage, society
掌握句型：
1) Do you think teenagers should be encouraged to make their own
decisions
2) Teenagers should not be allowed to have part-time jobs
3) Do you think we may be allowed to take photos if we don' use a flash
2.通过小组合作，归纳总结含情态动词的被动语态should/may/… + be + done的用法，完成句子填空。
3. 通过对话，学会对别人的观点做出回应，表达同意或不同意，并阐述理由。
Presentation
Revision
Pre-grammar
Look and say.
Rules for teachers in Xiangshan Middle School
The lessons should be prepared well before class.
Teachers should be allowed to do exercise in the last class.
Teachers shouldn’t be allowed to go across the playground.
Teachers shouldn’t be allowed to smoke in office.
Teachers shouldn’t be allowed to have part-time jobs.
…
I (don’t) think teachers should be allowed/encouraged to_______ because______________________________.
Presentation
Look and say.
Pre-grammar
Revision
Rules for teachers in Xiangshan Middle School
have part-time jobs
get your ears pierced
stay up very late at night
wear earrings
go out on school nights
watch TV on school nights
run in the hallways
fall in love with others
smoke
throw out litter
sleep/talk/eat in class
fight/argue with others
make your own decisions
clean your room every day do sports after school
…
A: Do you think teenagers should be allowed/encouraged to_____
B: Yes/No, ________, because_______________________.
A: Do you think teenagers should be allowed/encouraged to smoke
B: No, I disagree with this, because it is bad for our health.
Presentation
Warming up
Pre-grammar
Look and say.
What rules do you have at school
Don’t arrive late for school.
= Students are not allowed to arrive late for school.
Don’t run in the hallways.
= Students ______________to run in the hallways.
are not allowed
Don’t stay out late outside.
= Students _______________ stay out late outside.
are not allowed
Presentation
Practice
Pre-grammar
Look and say.
Don’t listen to music in the classroom.
= Students ____________________to listen to music in the classroom.
What rules do you have at school
Don’t fight with others.
= Students ____________________to fight with others.
should not be allowed
must not be allowed
Don’t sleep in class.
= Students ________________to sleep in class.
can not be allowed
Presentation
New words
Pre-grammar
Listen and late.
community
n. 社区；社团
n. 机会；可能性
chance
避免接近；远离
keep …away from
make one’s own decision
自己做决定
educate
v. 教育；教导
manage
v.完成（困难的事）；
应付（困难局面）
society
n. 社会
Presentation
While-grammar
Grammar Focus
Read the sentences and translate them.
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.
Presentation
Practice
While-grammar
1. 我认为不应该允许十六岁的孩子开车。
I don’t think sixteen-year-olds ______ __ _______ to drive.
2. 我同意。他们还不够严谨。I agree. They aren’t ______ _______.
3. 你认为应该鼓励青少年去自己做决定吗？
Do you think teenagers _______ ____ ________ to make their own decisions
4. 不，我不认同这个。青少年还太小不能自己做决定。
No, I don’t agree with this. Teenagers are ____ ______ __ make their own decisions.
5. 不应该允许青少年去做兼职。Teenagers ______ ___ __ _____ to have part-time jobs.
6. 不，我不同意。他们可以从工作当中学到很多。
I disagree. They can ______ a lot _______ working.
7. 你认为如果不用闪光灯的话可以允许我们拍照吗？
Do you think we ____ ___ _______ to take photos if we don’t use a flash.
8. 如果不用闪光灯的话，那么拍照是可以的。
If you don’t use a flash, then it may be OK.
should be allowed
serious enough
should be encouraged
too young to
should not be allowed
learn from
may be allowed
Fill in the blanks according to grammar focus.
Presentation
While-grammar
Grammar Focus
语法回顾
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。
主动语态
被动语态
1.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：
主动语态:
被动语态:
They (主语）grow (谓语）tea (宾语）in the south-east of China.
Tea (主语）is grown (谓语）by them in the south-east of China.
Presentation
While-grammar
Grammar Focus
语法回顾
被动语态
2. 被动语态谓语动词的构成
主语+be+ done(过去分词)+其他成分
其中be动词有人称、时态和数的变化
1)一般现在时被动语态谓语动词：
主语+am\is\are+ done(过去分词)+其他
The classroom is cleaned every day.
Football is played by them on Sunday.
2) 一般过去式被动语态谓语动词：
Our classroom was cleaned just now.
Presentation
While-grammar
Grammar Focus
语法回顾
被动语态
3.一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 ...)
4.一般过去时被动语态的各种句式结构
肯定式 主语+was/ were+过去分词（ + by…)
否定式 主语+was/ were + not +过去分词 (+by…)
疑问式 Was/ Were+主语+过去分词(+ by …)
特殊疑问词+ was/ were+主语+过去分词（+ by ...)
Presentation
While-grammar
Grammar Focus
语法回顾
被动语态
5. 被动语态的用法
（1） 不知道谁是动作的执行者或没有必要知道谁是动作的执行者时。
These books are written for children.
I haven’t been told about it.
（2） 需要强调动作的承受着即宾语时。
Calculator can't be used in the math exam. 计算器不能用于数学考试。
The cup was broken by David.
The book is written by Mo Yan.
（3）作客观说明时，常采用一种被动语态结构。
It is\was said\believed\reported +that … …
It is said that tea was invented by accident.
Presentation
While-grammar
Grammar Focus
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.
What did you find out
探究语法规律
探究一：含有情态动词的被动语态
结构为：情态动词(can, may, must, should\… +____+及物动词的_________。
be 过去分词
Many trees should be planted in the mountains. 应该在山上种许多树。
Presentation
While-grammar
Grammar Focus
探究语法规律
探究一：含有情态动词的被动语态
含有情态动词的被动语态谓语动词句型结构
肯定：情态动词+ be +动词的过去分词
否定：情态动词+not+ be +动词的过去分词
一般疑问句：情态动词+主语+be+动词的过去分词？
特殊疑问句：疑问词+情态动词+主语+be+动词的过去分词？
Teenagers should be allowed to go shopping.
The word can’t be used in this sentence.
Must the work be finished today
Who should be asked for help
→This book can be taken home (by you).
You can take this book home. （改为被动语态）
Presentation
Practice
While-grammar
探究语法规律
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. I think we should allow teenagers to have part-time jobs.(改为被动语态)
I think teenagers should _______ ______ _______have part-time jobs.
4.Someone might use smart phones to take pictures instead of cameras. (改为被动语态)
Smart phones to take pictures instead of cameras.
The work must be done
shouldn’t be allowed
shouldn’t be allowed
might be used
Presentation
While-grammar
Grammar Focus
探究语法规律
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.
What did you find out
探究二：含有宾语从句的主从复合句中的否定转移的用法。
当动词think, believe, suppose, imagine, expect, feel的主语是第一人称、谓语动词为没有任何副词修饰的一般现在时，它们的否定式实际上是对宾语从句的否定。表示说话者提出一种委婉的看法或主张。
Presentation
While-grammar
Grammar Focus
探究语法规律
I think that he will help us. —I don't think that he will help us.
我认为它不会帮助我们。
I believe that he is right. —I don't believe that he is right.
我认为他不对。
I suppose that he likes it. —I don't suppose that he likes it.
我想他不喜欢它。
I don’t think sixteen-year-olds should be allowed to drive.
动词前有其他副词修饰时，否定不转移。如：
I really don't think it's necessary for us to go there now. 我的确不认为我们有必要去那儿。
I feel strongly that he shouldn't do such a thing. 我强烈地认为他不应该做那样的事。
应该翻译为：我认为十六岁的孩子们不应该被允许开车。
探究二：含有宾语从句的主从复合句中的否定转移的用法。
Presentation
Practice
Post-grammar
should be encouraged to do social work for their community
might be allowed to go to the party by her
must be kept away from the Internet
should be given chances to make their own decisions
keep……away from；避免接近；远离
make one’s own decision 自己做决定
Presentation
Practice
Post-grammar
be asked
are allowed
be educated
start
move
take
continue
Presentation
Practice
Post-grammar
A: Members shouldn’t be allowed to speak Chinese.
B: I agree. Only in this way can you improve your English.
A: Members should be allowed to use dictionaries.
B: Yes, but they should only use English-dictionaries.
A: Members shouldn’t be allowed to speak Chinese.
B: I agree. Only in this way can you improve your English.
Presentation
Practice
Post-grammar
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
Presentation
Language points
Post-grammar
1. manage v. 完成(困难的事)；应付(困难局面)
manage to do sth. 设法做成某事 = succeed in doing sth.
e.g. 我们设法及时赶到了机场。 We _______________ the airport in time.
【链接】
try to do sth. 设法或试图做某事，但是否做成了某事，它并不涉及。
e.g. You can try to improve your English by reading English newspapers.
根据句意，用manage或try的适当形式填空。
1) My brother worked hard and ________ to pass the exam. He was happy.
2) Tom ________ to pass the exam, but failed because of laziness.
managed
tried
managed to get to
Presentation
Language points
Post-grammar
2. educate
educate vt. 教育；教导 educate sb. to do sth.
education是educate的名词形式。
e.g. Mr. Zhang always spends lots of time educating his two children.
They are having a class to educate teenagers to know the dangers of smoking.
The government is spending a lot of money on education.
用educate的适当形式填空。
(1) The purpose of the activity is to _______ people to protect the
environment.
(2) When my uncle was young, he was ________ in Australia.
(3) In order to receive a better ___________, Jim wants to go to college.
educate
educated
education
Presentation
Class test
Post-grammar
一、用括号内所给单词的适当形式填空。
1．More trees should _________(plant) this year.
2．Must the work _________(finish) by 6：30 this afternoon
3．Where can the lost boy _________(find)
4．Thanks to the Internet，different kinds of information can
__________(learn) in a short time.
5．The water should __________(not put) here.
6．The bad food shouldn't be _______(eat)．
be planted
be finished
be found
be learned
not be put
eaten
Presentation
二、根据汉语意思完成英语句子或对话。
1. 很危险！让游客们远离山顶。
It's dangerous. ______ visitors ______ ______ the top of the mountain.
2. —我可以离开一会吗？
—可以，只要你答应在11点以前回来。
—Can I be away for a while
—Yes, you can, as long as you promise to _________________ 11 o'clock.
3. 你可以稍后考试。You can _______ _______ _______ later.
4. 这项工作必须按时完成。
The work must _______ _______ on time.
5. 应允许青少年培养自己的爱好。
Teenagers _______ _______ _______ to develop their own hobbies.
Keep
be / come back by
away
from
take the test
be finished
should be allowed
Class test
Post-grammar
Presentation
Homework
You and your friend are starting an English club. Make a list of rules about what should and should not be allowed.
e.g. Members should be allowed to use dictionaries.
They should only use English-English dictionaries.
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