Unit7Teenagers should be allowed to choose their own clothes.微课被动语态课件(共12张PPT)

(共12张PPT)
Teenagers should be allowed to choose their own clothes.
Unit 7
Language goals
Use the structure“modal verbs(情态动词）+be+done”
02
Talk about what you are allowed to do
01
Should students be allowed to take mobile phones to school
Students should be allowed to take mobile phones to school.
Students should not be allowed to take mobiles to school.
Students should be allowed to take mobile phones to school.
I think mobile phones are useful at school.
Students can use them in class to watch educational videos online.
Students should not be allowed to take mobiles to school.
I think mobile phones can distract students from their schoolwork.
Mobile phones can be used to surf the Internet, send messages, play games, listen to music and so on.
Sudents should not be allowed to take mobile
phones to school.
School Rules
Teenagers should be allowed to choose their own clothes.
Students should be allowed to have part-time jobs.
Sixteen-year-olds should not be allowed to get their ears pierced.
Teenagers should not be allowed to smoke.
Sixteen-year-olds should not be allowed to drive.
should(shall)
can(could)
may, must
have to
will(would)
need, ought to
含有情态动词的被动语态
肯定句
主语+情态动词+be+done
Your homework should be finished by yourself.
你应该自己完成作业。
否定句
一般疑问句
特殊疑问句
主语+情态动词+not+be+done
疑问词+一般疑问句
情态动词+主语+be+done
The book can’t be taken out of the reading room.
这本书不能被拿出阅览室。
Should these young trees be watered every day
应该每天给这些小树浇水吗？
What should students be allowed to do
应该允许学生们做什么？
肯定句:主语+情态动词+be + done
否定句：主语+情态动词+ not+ be + done
一般疑问句：情态动词+主语+ be + done
特殊疑问句：疑问词+一般疑问句
Summary
Exercises
1.The sun ______ at night .
A. can be seen B. can't see
C. can't be seen D.doesn't see
2.Must this work _______ right now
A.be done B.do
C.be doing D.does
3. –How often do I need to feed the dog
–It ______ food every day, or it will be hungry.
A. must give B. must be give
C. must be given D. must be gave
4.Where can the last boy ______
A. find B. be found
C. is found D. be find
5. –It’s difficult to get to the other side of the river.
–A bridge ______ over the river.
A. should be built B. should build
C. will build D. has built
C
B
A
A
C
否定句：主语+情态动词+not+be+done
一般疑问句：情态动词+主语+be+done
肯定句:主语+情态动词+be+done
see-saw-seen
give-gave-given
特殊疑问句：疑问词+一般疑问句
find-found-found
肯定句:主语+情态动词+be+done
build-built-built
do-did-done
Unit7
Section A
Section A
Section B
Self check
Words and phrases
allow
Sentence structures
grammar
含有情态动词的
被动语态
情态动词+be+done
Teenagers should be allowed to choose their own clothes.
Thanks !