状语从句    时间，地点，原因，条件，让步，目旳，成果，方式，比较九种状语从句一、时间状语从句引导词有 when, whenever, as, while, after, before, until/till, since, once, as soon as 1 when ①在… 旳时候         ② 这时   be doing…when                 be about to do …when                 had just done…when        ③既然，在…旳情况下Why do you want to find another job when you have
such a good one It was foolish of you to take a taxi when you could walk there in five minutes How can you hope for mercy when you show none？   ④= if 假如   Turn off the switch ___ somet ...