非真实条件句和虚拟语气是一回事吗

问题描述

请问：非真实条件句和虚拟语气是一回事吗？还是互有交涉？

老师答疑

陈老师：

请问：非真实条件句和虚拟语气是一回事吗？还是互有交涉？

回答如下：

(1)非真实条件句是虚拟语气所表现的一种句子形式：即呈现出来一种句子形态和结构.

例如：

If I were a bird, I would fly to America .

如果我是一只鸟，我就会飞到美国去。

（以上为“非真实条件句”）

非真实条件句要满足以下几个条件

(1)具有表示条件连词if

If I were you,I would go with them.

(2)描述/陈述的内容是与客观事实相反的一种假设

If you had followed  his advice, you would have succeeded in solving the problem.

(3)含有省略连词IF 的倒装结构

Had You come here, you would have been given some help.

(4)句子虽然没有连词IF，但是具有隐含条件词，例如witout, but for 等。

But for your help,I would not have finished the work  on time.

(2)虚拟语气是句子谓语动词所表现的一种动词形式,即呈现出来一种动词形态和结构.

例如：

The old man suggested that we (should) leave here immediately.

这位老人建议我们已经离开这里 。

（以上为“虚拟语气”形式）