No sooner.than和hardly.when的主句与从句时态有什么要求?

No sooner.than和hardly.when的主句与从句时态有什么要求?
No sooner.than和hardly.when的主句与从句时态有什么要求?

No sooner.than和hardly.when的主句与从句时态有什么要求?
表示将来动作或事情的时间状语从句中,动词要用现在时态代替将来时,基本上掌握"主将从现"就可以了,不行的话就一起到退一个时态.下面就是一个例子.用于hardly/scarcely...when; no sooner ...than 句型中,主句用过去完成时,从句用一般过去时.I had hardly finished my work when he came to see me.I had no sooner got into the room than it began to snow.No sooner had I arrived home than the telephone rang.（注意主谓倒装）