英语中as soon as 是什么意思

as soon as连接的时间状语从句中，指未发生的动作，规律是：主句一般将来时，从句用一般现在时代替一般将来时
如：I will tell him the news as soon as he comes back。
指紧接着发生的两个短动作，主从句都用一般过去时
如 He took out his English books as soon as he sat down
就这两种情况 ，熟记就行。
在宾语从句中，当主句为与过去时的时候，从句必须用与主句相对应的时态，所以为了与主句动词said呼应，时间状语从句中的will look up应该对应为过去将来时态would look up，finds对应为found.

1. 一……就，刚……便
as long as只要，如果；既然，由于
as soon as一……就，刚……便
as usual照例，像平常一样 ...
2. 一...就...
as soon as 一...就...
3. 立刻
as soon as possible 尽快
as soon as 立刻
as sound as a bell 十分健全
例句与用法：1. I gave the alarm as soon as I saw the smoke.
我一看见冒烟，就发出了警报。

2. Then phone as soon as possible.
那么你应该在最短时间内打出电话。

3. Tell me as soon as she arrives.
她一到就马上告诉我。

一 …… 就 …… 什么……

一.........就......

一....就....，作状语。

一。。。就。。。
如：I will go back home as soon as I finish the work.我一完成工作就马上回家。