2016职称英语语法：虚拟语气条件句中的倒装

虚拟语气条件从句中的if 被省略时，要把从句中的were, had 或should 移到主语之前。(if 的省略、倒装只限于从句中有were, had 或should这三个词时。)

例如：

If I had been in your place, I wouldn’t have given it up so early.

=Had I been in your place, I wouldn’t have given it up so early.

如果我在你的位置，我不会这样早放弃。

If he were to succeed, the sun would rise from the west.

=Were he to succeed, the sun….

如果他能成功，太阳就会从西边出来。

If you should be asked about this, say that you know nothing.

=Should you be asked about this, say……

如果有人问起你这件事，你就说你什么也不知道。

Were there no air or water, there would be no life on the earth.

如果没有空气和水，地球上就不会有生命。

Had you been more careful, you might have avoided the mistake.

如果你再细心点，本来事可以避免这个错误的。