精选优质文档-倾情为你奉上状语从句种类连接词注意点时间状语when, whenever, while, as, before, after, until, till, , as soon as主句表示将来意义时,从句须用一般现在时;while引导的从句中动词一般是延续性的;until用在肯定句中主句动词是延续性的,而否定句中主句动词为短暂性的。I will wait till my mother comes back.(肯定句时用延续性动词)原因状语because, since, as, now that(既然)because语气最强,since较弱,表示大家都明了的原因,as又次之。条件状语if, unless(if not 如果不,除非) , as long as ,once(一旦), in case(万一), on condition that(如果)主将从现,if引导的那句叫做从句(if 翻译成如果时)目的状语so that, in order that, for fear that(恐怕)