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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