1、指未发生的.动作。时态规律是“主将从现”,即主句用一般将来时,从句用一般现在时代替一般将来时。
I’ll tell him the plan as soon as I see him.
我一看到他就告诉他这个计划。
He’ll go home as soon as he finishes his work.
他一完成工作就回家。
I’ll write you as soon as I get there.
我一读完就把书还回去。
2、如果强调过去发生的两个动作有先后关系,从句谓语动词可以用过去完成时。例如:
As soon as they (had) returned from London, they drove to see their sick aunt.
他们一从伦敦回来,就开车去看望他们患病的姨妈。
After left as soon as he had drunk his coffee.
Andrew一喝完咖啡就走了。