2019-2020学年外研版高中英语选修6课件:时间状语从句
2019-2020学年外研版高中英语选修6课件:时间状语从句第2页

2.从句动作和主句动作同时发生,且从句动作为延续性动词时,when,while,as都可使用。 ①When /While /As we were dancing,a stranger came in. (dance为延续性动词)当我们跳舞时,一位陌生人走了进来。 ②When /While /As she was making a phonecall,I was writing a letter. (make为延续性动词)当她在打电话时,我正在写信。