文档介绍：Unit 3
Go for it J9
Teenagers should be allowed to
choose their own clothes
Section A
I want to play with my friends. But my father doesn’t allow. I think teenagers should be allowed to go out to play with their friends.
Parents should allow teenagers to go out with their friends.
Parents should allow six-year-olds to drive.
Parents should allow fifteen-year-olds to choose their own clothes.
Teenagers should be allowed to go out with their friends.
Sixteen-year-olds should be allowed to drive.
Fifteen-year-olds should be allowed to choose their own clothes.
exercise
同义句转换
They should allow us to have part-time jobs. ___________________________________
We should allow children to spend time with their friends. _____________________________________
The teacher should allow Anna to finish the picture. _____________________________________
Parents should allow children to choose their own clothes.
________________________________________
We should be allowed to have part-time jobs.
Children should be allowed to spend time with their friends.
Anna should be allowed to finish the picture by the teacher.
Children should be allowed to choose their own clothes by their Parents.
grammar
被动语态
定义:表示主语是动作的承受者.
构成:助动词be+及物动词的过去分词。助动词有人称、时态和数的变化。
含有情态动词的被动语态结构:情态动词+be+及物动词的过去分词。
用法:当我们不知道谁是动作的执行者,或者没有必要指出谁是动作的执行者,或者只强调动作的承受者时,要用被动语态。
:
1)一般情况在动词原形后加-ed
watch---watched
2)以不发音e结尾的加-d
practice---practiced
3)以辅音加y结尾的,去y变i加-ed
study---studied
4)以重读闭音节结尾,末尾只有一个辅音字母, 先双写该辅音字母,再加-ed
stop---stopped
:
am
is
are
been
have
has
had
do
done
write
written
go
gone
The telephone ___________(invent) by Bell in 1876.
The trees may ____________(plant) in spring.
Teenagers should not ____________(allow) to drive.
English ___________(speak) in Canada.
Math must ___________ (study) well.
We ________(need) to learn English.
exercise
Finish the sentences
was invented
be planted
be allowed
is spoken
be studied
need
Listening (1b