But for your help we couldn’t have succeeded in the experiment. (暗含条件是but for your help)
This same thing, happening in wartime, would lead to a disaster. (条件暗含在分词短语happening in wartime中) He must have the strength of a hippopotamus, or he never could have vanquished that great beast.
I wish (that) I had seen the film last night.
I wish (that) I would\could go.
2.表示要求,命令,建议的虚拟语气
一个坚持，两个命令， 三个建议，四个要求
1.insist 2. order, command 3. advise, suggest, propose
He treats /treated the boy as if he were his own son.
He speaks/ spoke as if he had known about it
Homework
1.Finish the Exercise 1 and 2 after class 2.Preview Period 4
(暗含条件是连词or)
Alone, he would have been terrified. (暗含条件是alone)
2. 条件暗含在上下文中。如：
You might stay here forever. (可能暗含if you wanted to)
had done
would/could/should/ might+have+p.p.
1. did / were 2. should do 3. were to do
would/could/should /might + V.(原)
与现在事实相反的虚拟条件句
If + 主 + did(were), 主+would/should/could/might +动词原形
1.如果他努力学的话，他就通过这次考试。
If he had worked hard, he would have passed the examination.
2.要是当时我和她结了婚的话，那我是很不幸的。
If I had married her, I would have been unhappy.
非真实条件句中的条件从 句有时不表出来，只暗含 在上下文中，这种句子叫 做含蓄条件句。含蓄条件 句大体有三种情况:
1. 条件暗含在短语中。：
W hat would I have done without you? (条件暗含在分词短语without you中)
It would be easier to do it this way. (条件暗含在不定式短语to do it this way 中)
I would rather you told me the truth. I would rather you had gone there last Sunday.
4. as if ( as though) 看起来 常用虚拟形式，即 表示与现在事实相反，用过去式；与过去事实相反 用过去完成式 (had done).
(advice, suggestion, proposal ) 4. demand , require, request, desire 这些词引导的名词性从句要使用虚拟语气。
即从句中的动词使用should + 动词原形， 或者将should省略。
3. would rather + 从句 动词用过去式或过去完成时
1. 如果我是你，我会再试一次。
If I were you, I would try it again.
2.如果我有一百万美元，我会买下这架飞机。
If I had one million dollars, I would buy the plane.
与过去事实相反的虚拟条件句
If +主 +had done sth, 主+would/should/could/might +动词完成式（have done）
if引导的虚拟条件句
虚拟语气
虚拟语气在 在条件从句中 [例句]
1. If you had come a few minutes earlier, you would have met him.
要是你早来几分钟的话，你就能见到他了。 (与过去事实相反)
2. If it were sunny tomorrow, I would come to see you.
Leaning aims 教学目标
• 一、深入了解，掌握虚拟语气 • 二、团结互助，积极主动，勇于展现自
我
英语动词有 三 种语气
陈述语气 祈使语气 虚拟语气
用来表示说的话不是事实，或者是 不太可能发生的情况，而是一种愿 望，建议，假设的语气叫虚拟语气。
虚拟语气的考点
1、条件句中的虚拟语气的用法； 2、条件句中虚拟语气的倒装； 3、名词性从句中虚拟语气的用法； 4、几种特殊结构中虚拟语气的用法; 5、虚拟语气时态的判定。
名词性从句中的虚拟 语气及几种虚拟语气
特殊句型
二、虚拟语气在名词从句中的运用 （1）用于宾语从句
１、wish 后面的宾语从句中。 一般用虚拟语气，表示一种不可能实现的愿望。其谓
语动词形式为：
表现在 过去时
表过去 过去完成时
表将来 would, might, could＋动词原形 I wish (that) I were a bird.
明天要是天气好的话，我来看你。(与将来 事实可能相反)
3. If I were you, I would go at once. 假如我是你的话，我会马上走。(与现在事
实相反，事实上我不可能是你)
主从句的谓语形式
时间 If 从句的谓语形式 主句的谓语形式
现在 过去 将来
did / were
would/could/should /might +V.(原)