内容正文:
虚拟语气
虚拟语气表示一种假设的情况,或一种主观的愿望,即动词所表示的动作或状态并非事实,或不可能实现。英语虚拟语气的形式有下列几种:
一、与现在事实相反
连接词
条件从句
结果从句
If
1.动词过去式(或were)
2.助动词(过去式)+动词原形
Should
Would +动词原形
could
might
If had the time, John would make a trip to China to see the Great Wall.
If I were you, I would give up drinking immediately.
二.与将来事实相反
连接词
条件从句
结果从句
If
1. should+动词原形
2. 动词过去式
3、were to+动词原形
Should
Would +动词原形
could
might
If you should lose, what would you do?
If I were to see her tomorrow, I would tell her the truth.
If you went there next time, you would see what I mean.
三、与过去事实相反
连接词
条件从句
结果从句
If
had+过去分词
Should
Would + have+过去分词
could
might
If I’d known that it was going to rain, I would never have gone for a walk in the country.
四、虚拟语气的几种特殊用法
省掉if的条件从句结构:
Had you asked me, I would have told you. (=If you had asked me,…)
2.有时虚拟条件不用条件从句而用不定式、分词、介词、名词、连接词或定语从句来表示,如:
A true friend would not do such a thing.
(=If he were a true friend, he...)
(=If there were no water,…)
(=If you