人教版九年级全册Unit7 Teenagers should be allowed to choose their own clothes.语法专题课件(共17张PPT)

(共17张PPT)
九年级全册Unit7
语法专题
目录
1.含有情态动词的被动语态
2.被动语态辨析
3.巩固练习
1.含有情态动词的被动语态
情态动词
can
may
must
should
可以
也许
必须
应该
含有情态动词被动语态的结构
情态动词+be+过去分词
肯定句
主语+情态动词+be+过去分词
can
Nowadays, housework can be done by robot.
may
These things may be done in class.
must
My homework must be done by 10 o’clock.
should
Teenagers should be allowed to make their own decisions.
否定句
主语+情态动词+not + be+过去分词
can
may
must
should
50 years ago, housework can not be done by robot.
These things may not be done in class.
My homework need not be done by 10 o’clock.
Teenagers should not be allowed to make their own decisions.
can’t
needn’t
shouldn’t
一般疑问句
情态动词+主语+be+过去分词…
can
Nowadays, can housework be done by robot
may
May these things be done in class
must
Must My homework be done by 10 o’clock
should
Should teenagers be allowed to make their own decisions
被动语态的辨析
一般现在时的被动语态
一般过去时的被动语态
含情态动词的被动语态
am / is /are +过去分词
was / were +过去分词
情态动词+be+过去分词
My bedroom is cleaned every day.
My bedroom was cleaned yesterday.
My bedroom must be cleaned every day.
巩固练习
将下面句子改为被动语态
We must clean our classroom every day.
__________________________________________
2. I will do the housework in the afternoon.
__________________________________________
3. Parents will encourage their children to do social work for their community.
_____________________________________________________
______________________________________________________
Our classroom must be cleaned by us every day.
The housework will be done by me in the afternoon.
Children will be encouraged to do social work for their community.
将下面句子改为被动语态
4. Do you think we must keep teenagers away from the Internet
______________________________________________________
5. Parents should give teenagers chances to make their own decision.
_______________________________________________________
Do you think teenagers must be kept away from the Internet
Teenagers should be given chances to make their own decision.
完成句子
青少年不应该被允许吸烟。
Teenagers ______ _______ ______ _______ smoke.
2. 青少年应该被允许选择自己的衣服。
Teenagers _____ ______ ________ ______ choose the own clothes.
3. 这项作业必须在10点前完成。
The homework _____ _____ _____ ______ 10 o’clock.
4. 他可能会因为上课迟到而受到惩罚。
He _____ ______ _______ for being late _____ school.
shouldn’t
be
allowed
to
should
be
allowed
to
must
be
done
by
may
be
punished
for
完成句子
5. 我觉得应该建一栋图书馆。
I think a library _________ ______ _________.
6. 青少年应该被允许花更多的时间在我们的爱好上。
Teenagers _____ ______ ________ _____ _____ more time _____ our hobbies.
7. 这种风筝能在那个商店里买到吗？
______ this kind of kites ____ _______ in that shop
should
be
built
should
be
allowed
to
spend
on
Can
be
bought
选择题
The stars _____ in the daytime.
A. can seen B. can not seen C. can not be seen
2. Water ________ in everyday life.
A. shouldn’t be wasted B shouldn’t waste C. shouldn’t wasted
3 .Trees ____________ in winter but in spring.
A．can not plant B．be not planted
C．can not be planted D．can plant
C
A
C
选择题
4. --- 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 found
5. Nick a job in a bank, but to our surprise, he didn't take it
A. is offered B. offered C. was offered D. has offered
6. He is very surprised that all the houses in the village _______white.
A. paint B. painted C. are painting D. are painted
A
C
D
Thank You!