虚拟语气，倒装句省略的问题。 这是书上给的，上面是省略过的句子，下面是还原的句子。 但是if去哪里了啊

Question

Should it rain, the crops would be saved.
　=Were it to rain, the crops would be saved.

是不是书上印错了？

Answer 1

在虚拟语气中，对将来的虚拟If从句有三种表达式：以“万一明天下雨”举例如下：
1） If it should rain tomorrow, I would not....
2） If it were to rain tomorrow, I would not....
3） If it rained tomorrow, I would not....
英语语法规定，虚拟条件句中如果省略If则要求倒装，但只限以i下三个词：should, were ,had可以置于句首，构成倒装，如上述例句1）2）可改为：
1）Should it rain...
2) Were it to rain....
还有一种，对过去的虚拟条件中，如：
If you had followed the teacher's advice, you wouldn't have failed the exam.
可改为：
Had you followed the teacher's advice, you wouldn't have failed the exam.

Answer 2

这是省略了连词if的虚拟语气 表示与将来情况可能相反 = if it should rain ,the crops woud be saved. 万一下雨，庄家就有救了。 省略if 后 从句要到装 也就是用疑问句的语序。
书上没印错 if it were to rain = if it should rain 省略if后 就是你看到的样子

Answer 3

不是的这倒装的