when引导状语从句时,主句是一般将来时,从句是一般现在时态,即“主将从现”。
如:
I will tell him the news when he comes back .
当他回来时我会告诉他这个消息。
拓展:
由when , as soon as , not ... until ... 等引导的时间状语从句和由if 引导的条件状语从句,都遵循“主将从现”原则。
如:
1.I will call you as soon as I get home .
我一到家就给你打电话。
2. I will go climbing if it doesn't rain tomorrow.
如果明天不下雨我就去爬山。
温馨提示:答案为网友推荐,仅供参考