as soon as 引导的时间状语从句与其他的有什么不同?
2个回答

When ---当……时候, 通常指某一特定的时间点,主句与从句的动作同时发生.

When I opened the window, I saw him come up.

While ---在……期间,往往指一段时间.

While I am washing the floor, you can be cleaning the windows.

Before --- 在……之前

Did you work as a stewardess before you come to this company?

After --- 在…… 之后

The plane took off after the air traffic controller gave clearance.

Since ---自从……, 通常主句用现在完成时

It is just a week since we arrived here.

No sooner than --- 一……就……

No sooner had he arrived than he went away again.

Once --- 一但……就……

Once you see him, you will never forget him.

Every time, each time 每次whenever 每当