新目标九年级英语第四单元.ppt

Unit 3
Teenagers should be allowed to choose their own clothes
Go for it J9
Section A
1a-2c
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 friends. _____________________________________.
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: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
Listen and check what Kathy thinks. Circle : Agree”“disagree” or “Doesn’t know” to show what Molly thinks.
grammar focus
I think students should be allowed to do homework with friends.
I disagree. They talk instead of doing homework.
Sixteen-year-olds should not be allowed to drive.
I agree. They aren’t serious enough at