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师梦圆初中英语教材同步人教版八年级下册Section B 1a—1d下载详情
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内容预览

1a

◆Last Wednesday, I was late for school.

Because

When/While…

◆Last Saturday, I couldn't go to my friend's birthday party.

Because

When/While…

left her house late

the competition started

got to the bus stop

running back home

wanted to call

Animal helpline

...

A: Kate left her house late .

B: When the school basketball competition started, Kate was still making her way to school.

C: When she got to the bus stop, she…

D: While...

E: ...

1d

when 既可以与延续性动词连用也可 以与非延续性动词连用

when 既可以表示某一点时间也可以表示某一段时间

当when表示“在某一段时间里”时,可以代替whlie,但while不一定能代替when

while只能与非延续性动词连用

while 强调某一段时间,所以谓语动词是延续性的

在引导时间状语从句时,如果主、从句的动作同时发生,两句都用进行时的时候,多用while引导

当......的时候

When I got to the bus stop, I realized that my bag was still at home!

I was doing my homework while my mom was cooking dinner in the chicken

THANKS

教材