精选优质文档-倾情为你奉上状语从句常见考点（一）时间状从1. when/while/as1) when： sb was doing sth when sth happened. sb was about to do sth when sth happened. sb was on the point of doing sth when sth happened. sb had (just/already) done sth when sth happened when=since (既然） Eg: Why did you go to the restaurant when you can easily cook at home? when=while=although (引导让步状语从句） 2) while: while引导时间状从时，后面只能使用延续性动词,后面通常用进行时态，也可以使用一般时态。 While/When/As sb was doing sth, sth happ
