初二英语涉及when,while的适当形式填空
1个回答

1. was sleeping got(短暂动作)

2.was cooking ; am washing (延续性动作)

while 一般跟延续性动作,用进行时.

我们老师归结一句好记的话:when的胃口大,while的胃口小

意思是,when 既可以跟短暂动作,又可以跟延续性动作.而while只能跟延续性动作(一般是进行时)

例句:

i was doing my homework when Tom called me.

call 是短暂性的动作,所以不能用while

i was washing the dishes while/when Lily was cooking.

cook是延续性的,所以when和while都行.

这就是为什么,when的胃口大,while 的胃口小.