when从句遵循主将从现吗？

when从句遵循主将从现吗？

一般情况下，无论时间、条件、处所、让步状语从句都使用一般现在时表将来

“主将从现”,只适合【状语从句】,包括由if,unless 等引导的【条件状语从句】和由when,as soon as等引导的【时间状语从句】.如：i will call you as soon as i get there./ if it doesn't rain tomorrow,we'll go on a picnic.,这两个句子都是典型的“主将从现”的句子. as long as 能引导条件状语从句吗,是不是主将从现 可以引导条件状语从句,如果是指将来的动作,要主将从现 如： as long as you help us,we shall finish the task in time. 只要你帮助我们,我们就会按时完成任务 as引导时间状语从句，主句和从句应用什么时态？ as作连词引导时间状语从句时,着重强调主句和从句中的动作同时发生,并且从句通常放在主句之前。归纳起来有下列两种情况: 1)状语从句的谓语动词是持续性动词,从句时态常用进行时态。 如: ①as he was waiting,he suddenly heard a voice from above…… ②as bethune and the other doctors were climbing the hills,they could see the enemy entering the village in the valley below. 2)状语从句的谓语动词是终止性动词,从句时态常用一般时态。 如: ①as she stood there,she heard the first bell. ②as they looked up,they saw another cloud coming towards them. ③as they watched.it came nearer and nearer.

是

不遵循