虚拟语气 是什么英语老师说 什么和现在事实相反 呀 ,麻烦的如何理解呀

问题描述:

虚拟语气 是什么
英语老师说 什么和现在事实相反 呀 ,麻烦的如何理解呀
1个回答 分类:英语 2014-11-29

问题解答:

我来补答
(1.)如果是与现在事实相反的虚拟语气:此时条件从句的谓语动词用过去式,主句的谓语则要用 would (should,could,might)+动词原形
例句:If there were no subjective mood,English would be much easier. 要是没有虚拟语气,英语就会容易得多了.
(2.)如果是与过去事实相反的虚拟语气:此时条件从句的谓语用 had+过去分词,主句的谓语用 would(should,could,might)+have+过去分词
请看下面的题目:
—If he __________,he __________ that food.
—Luckily he was sent to the hospital immediately.
A. was warned,would not take B. had been warned,would not have taken
C. would be warned,had not taken D. would have been warned,had not taken
此题应选 B.
(3.)如果是与将来事实相反的虚拟语气,此时的主句谓语通常用would(should,could,might)+动词原形,而从句谓语可能有以下几种情况:
1. 从句谓语用过去式:
If your father knew this,he would be angry. 要是你父亲知道了,他会生气的.
If it rained tomorrow,the sports meet would beput off. 要是明天下雨,运动会就推迟.
2. 从句谓语用should+动词原形(通常指可能性极小的事情,一般译为“万一”):
If it should rain,the crops would be saved. 要是有雨,这庄稼还有救.
此类句型的主句谓语有时可以用祈使句甚至将来时态:
If it should rain tomorrow,don’t expect me. 万一明天下雨,就不要等我了.
If I should be free tomorrow,I will come. 万一我明天有空,我就来.
3. 从句谓语用were to+动词原形 (通常指可能性极小可或近乎不可能,有时指出乎意料):
If the sun were to rise in the west,my love for you would not change. 即使太阳从西边出,我对你的爱也不会变.
如果是初中需要掌握第一种,如果是高中,则必须掌握全部用法.
不懂继续追问,望采纳,谢谢.(*^__^*) 嘻嘻
 
 
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