马上要考了，请教牛牛关于虚拟语气，谢谢~

Jasmine0302

我在白勇语法P80看到这样一句话：“should条件从句用原形动词表达虚拟语气，但主句谓语动词不用虚拟语气形式”，
然后我专门查了一下这个知识点，搜到以下结果：
当虚拟条件句的谓语动词含有were, should, had时，if可省略，而将were, should, had等词置于句首。
如：Should he agree to go there, we would send him there. 要是他答应去的话，我们就派他去。

为什么这个例句的主句中还是用了would的表达形式呢？究竟哪种才是更为准确呢？大家在做题时有没有碰到涉及这个知识点的题可以拿出来借鉴以下的。

Jasmine0302

又找到一个支持下面的例句： Should it rain, the crops would be saved. =Were it to rain, the crops would be saved.假如下雨，庄稼就有救了。

Jasmine0302

刚刚找到一道题关于这个知识点的，符合白勇的说法。
Developing nations in various parts of the world have amassed $700 billion in debts; at stake, should a significant number of these debts be repudiated, is the solvency of some of the world’s largest multinational banks.

(A) should a significant number of these debts be repudiated, is

(B) should a significant number of these debts be repudiated, are

(C) should they repudiate a significant number of these debts, are

(D) if there is a repudiation of a significant number of these debts, would be

(E) if a significant number of these debts will be repudiated, is


不过还是不明白什么时候主句用虚拟，什么时候不用，希望牛牛帮忙总结下，不胜感激~

greatbelief

我对虚拟语气也有疑问，同问吧！和你一起呼唤牛牛的到来。加油！不过我记得XDF老师说一般虚拟语气很少考到，就祝你考试不要碰到好了。呵呵...

Jasmine0302

好像也是哦，做题碰到的是比较少，但是不敢心存侥幸呀~