虚拟语气讲与练-牛津英语高中专版
虚拟语气讲解和练习(附答案)
虚拟语气讲解和练习（附答案）概念理解
一、动词的语气
语气用来区别讲话人对某一行为或事情的看法和态度。英语中的语气(mood)
1.陈述语气
Where there is a will, there's a way. 有志者事竟成。
Can you help me carry the box upstairs 你能帮我把箱子搬到楼上吗？
How I missed the life in the countryside! 我多么想念乡村的生活啊！
2.祈使语气
Come this way, please! 请这边走。
Don't make any noise, will you 别吵，行吗？
Do be careful when crossing the street. 过马路时一定要小心。
3.虚拟语气
If I were a bird, I could fly in the air. 如果我是一只小鸟，我就能在空中飞行。
I wish it were spring all the year round. 但愿四季如春。
May good luck be yours! 祝你好运！
知识清单
清单一、条件句中的虚拟语气
A．真实条件句
If he doesn't come at 8, we won't wait for him. 如果他八点不来，我们就不等他了。
If a flood happened in the past, there was usually a great loss of life and property. 过去发生洪水的话，常有很大的生命和财产损失。
牛津高中英语模块六语法复习题 虚拟语气
模块六语法—虚拟语气
编写人：陈尚琢审核人：
一、语气的定义和种类
l、语气是动词的一种形式，它表示说话人对某一行为或事情的看法和态度。
2、语气的种类：
（1）陈述语气: 表示动作或状态是现实的、确定的或符合事实的，用于陈述句、疑问句和某些感叹句。如：
We are not ready. 我们没准备好。What a fine day it is!多好的天气啊! （2）祈使语气: 表示说话人的建议、请求、邀请、命令等。如: Open the door, please。请打开门。
（3）虚拟语气: 表示动作或状态不是客观存在的事实，而是说话人的主观愿望、假设或推测等。如：
①If I were you, I should study English. 如果我是你，我就学英语了。
②May you succeed! 祝您成功！
二、虚拟语气在条件从句中的用法
替；从句中的should 可用于各种人称。
l、表示与现在事实相反的假设和结果。如：
If my brother were here, everything would be all right.
要是我哥哥在这儿，一切都没问题了。
2、表示与过去事实相反的假设和结果。如：
If you had taken my advice，you wouldn't (couldn’t) have failed in the exam. 如果你按照我的建议去做，你一定不会(不可能)考试不及格。
3、表示与将来事实可能相反的假设和结果。如：
①If it were Sunday tomorrow, I would go to see my grandmother.
虚拟语气讲解及练习题(含答案和解释)
高中英语虚拟语气讲解及练习
虚拟条件句就是对现实条件的一种虚拟假设，所假设的条件一般不符合事实或与事实相反或在现实中发生的可能性极小。根据时间的不同，虚拟条件句可分为三种，即与现在事实相反的虚拟条件句、与过去事实相反的虚拟条件句
（1）表示与现在事实相反
If I had enough money now, I would lend it to you.
（2）表示与过去事实相反
If he had taken your advice, he wouldn’t have made such a bad mistake.
（3）表示与将来事实相反
I would go shopping with you if it were to be Sunday tomorrow.
1. 虚拟条件句的倒装
在虚拟条件句中，为了强调所假设条件的虚拟性，或突出说话人的一种主观愿望，虚拟条件句可用倒装结构。虚拟条件句的倒装是通过去掉if，把条件从句谓语中的助动词、情态动词或系动词放在句首实现的。例如：Had I been（= If I had been ） in that situation， I would not have let the thief escape away with so much money.
Should there be （= If there should be） a drought， what should we do at that time ？
2. 错综时间条件句
有时条件从句的动作和主句的动作发生的时间并不一致，这时谓语动词的形式应根据它所要表示的具体时间来确定。例如：
高中英语虚拟语气详解及练习(含答案)
高中英语虚拟语气讲解及练习
虚拟条件句就是对现实条件的一种虚拟假设，所假设的条件一般不符合事实或与事实相反或在现实中发生的可能性极小。根据时间的不同，虚拟条件句可分为三种，即与现在事实相反的虚拟条件句、与过去事实相反的虚拟条件句
（1）表示与现在事实相反
If I had enough money now, I would lend it to you.
（2）表示与过去事实相反
If he had taken your advice, he wouldn’t have made such a bad mistake.
（3）表示与将来事实相反
I would go shopping with you if it were to be Sunday tomorrow.
1. 虚拟条件句的倒装
在虚拟条件句中，为了强调所假设条件的虚拟性，或突出说话人的一种主观愿望，虚拟条件句可用倒装结构。虚拟条件句的倒装是通过去掉if，把条件从句谓语中的助动词、情态动词或系动词放在句首实现的。例如：Had I been（= If I had been ） in that situation， I would not have let the thief escape away with so much money.
Should there be （= If there should be） a drought， what should we do at that time ？
2. 错综时间条件句
有时条件从句的动作和主句的动作发生的时间并不一致，这时谓语动词的形式应根据它所要表示的具体时间来确定。例如：
虚拟语气讲与练-牛津英语高中专版
C. tried D. didn't try
2.表示要求，命令，建议的虚拟语气。
1.宾语从句。常见动词： 一个坚持，两个命 令，三个建议，四个要求。即
1.insist 2. order, command 3. advise, suggest, propose 4. demand , require, request, desire 这些动词后面的宾语从句要使用虚拟语气用
21. Should it rain, the crops _____.
A. would be saved B. would have been saved
C. will be saved D. had been saved
27. If I _____ you, I would try again.
A. am B. was C. were D. be
28. _____ , all the students would hear.
A. If the teacher had spoken louder B. If the teacher will speak louder C. Had the teacher spoken louder
“后退一步法” ①与过去事实相反，在从句中用过
去完成时形式表示。 ②与现在事实相反，用一般过去 时形式表示。 ③与将来事实可能相反，用过去将来时
高中语法虚拟语气讲解+练习
⾼中语法虚拟语⽓讲解+练习
语法：虚拟语⽓
⼀.定义
虚拟语⽓是动词的⼀种特殊形式。它⽤来表⽰所说的不是事实，或者是不可能发⽣的情况，⽽是⼀种愿望，建议,猜测或是与事实相反的假设。
⼆.具体⽤法
1.虚拟条件句中主句和从句的谓语动词构成形式如下表
2)对过去的假设:If I had known earlier, I might have done something.
(这⾥的earlier表明是如果过去早点知道，就是对过去的假设，所以从句⽤了“过去的过去”——即过去完成时态，⽽主句⽤了might have done)
3)对将来的假设: If the teacher asked me to solve the problem next time, I could try my best.
(这⾥有提⽰词next time,表明是对将来的假设。因此主句⽤could+动词原形；从句⽤过去式)
2.混合时间的虚拟语⽓
如果条件句中(即从句中)的动作和主句的动作不是同时发⽣，主句和从句的谓语动词的形式应分别根据各⾃所表⽰的时间加以调整。
1)If I had received the passport yesterday, I would start today.
(其中，if引导的从句是对过去——即yesterday的假设，所以⽤过去完成时；⽽主句是对今天的假设，所以⽤would+动词原形)
2)If he had telephoned me last night, I would see him now.
3)If he had followed the doctor’s advice, he would be all right now.
高中英语虚拟语气讲解及练习附答案解析
高中英语虚拟语气讲解及练习
虚拟条件句就是对现实条件的一种虚拟假设，所假设的条件一般不符合事实或与事实相反或在现实中发生的可能性极小。根据时间的不同，虚拟条件句可分为三种，即与现在事实相反的虚拟条件句、与过去事实相反的虚拟条件句
（1）表示与现在事实相反
If I had enough money now, I would lend it to you.
（2）表示与过去事实相反
If he had taken your advice, he wouldn’t have made such a bad mistake.
（3）表示与将来事实相反
I would go shopping with you if it were to be Sunday tomorrow.
1. 虚拟条件句的倒装
在虚拟条件句中，为了强调所假设条件的虚拟性，或突出说话人的一种主观愿望，虚拟条件句可用倒装结构。虚拟条件句的倒装是通过去掉if，把条件从句谓语中的助动词、情态动词或系动词放在句首实现的。例如：Had I been（= If I had been ） in that situation， I would not have let the thief escape away with so much money.
Should there be （= If there should be） a drought， what should we do at that time ？
2. 错综时间条件句
有时条件从句的动作和主句的动作发生的时间并不一致，这时谓语动词的形式应根据它所要表示的具体时间来确定。例如：
虚拟语气讲解及练习题(含答案和解释)
高中英语虚拟语气讲解及练习
虚拟条件句就是对现实条件的一种虚拟假设，所假设的条件一般不符合事实或与事实相反或在现实中发生的可能性极小。根据时间的不同，虚拟条件句可分为三种，即与现在事实相反的虚拟条件句、与过去事实相反的虚拟条件句
（1）表示与现在事实相反
If I had enough money now, I would lend it to you.
（2）表示与过去事实相反
If he had taken your advice, he wouldn’t have made such a bad mistake.
（3）表示与将来事实相反
I would go shopping with you if it were to be Sunday tomorrow.
1. 虚拟条件句的倒装
在虚拟条件句中，为了强调所假设条件的虚拟性，或突出说话人的一种主观愿望，虚拟条件句可用倒装结构。虚拟条件句的倒装是通过去掉if，把条件从句谓语中的助动词、情态动词或系动词放在句首实现的。例如：Had I been（= If I had been ） in that situation， I would not have let the thief escape away with so much money.
Should there be （= If there should be） a drought， what should we do at that time ？
2. 错综时间条件句
有时条件从句的动作和主句的动作发生的时间并不一致，这时谓语动词的形式应根据它所要表示的具体时间来确定。例如：
虚拟语气讲解及练习题(含答案和解释)
虚拟语气讲解与练习
黄志刚 2013.10.
一.简介
虚拟语气用来表示说话人的主观愿望或假想，而不表示客观存在的事实，所说的是
一个条件，不一定是事实，或与事实相反。虚拟语气通过谓语动词的特殊形式来表示。英
语中的语气分为陈述语气、祈使语气、虚拟语气
在什么情况下用虚拟语气 ? 在表示虚假的、与事实相反的或难以实现的情况时用虚拟语气，
表示主观愿望或表示某种强烈情感时，也用虚拟语气。即当一个人说话时欲强调其所说的
话是基于自己的主观想法，而不是根据客观实际，就用虚拟语气。
二 .虚拟语气在非真实条件状语从句中的用法
1、真实条件状语从句与非真实条件状语从句
真： eg . If he doesn’ t hurry up, he will miss the bus. 如果他不快点，他将错过
巴士。 ( 真实条件状语 )（不是虚拟语气） If he is free, he will ask me to tell stories. 如果他是空闲的，他会要求我讲故事。（真实条件状语）（不是虚拟语
气）
非真： eg. If I were you, I would go at once如.果我是你，我马上就会去。（非真
实条件状语从句）If there were no air, people would die. 如果没有空气，
人就会死亡。（非真实条件状语从句）
2、用法及动词形式
1、表示与现在事实相反的情况，例 1.If I were you, I would take an umbrella.如
果我是你，我会带把伞。（事实：我不可能是你） 2.If I knew his telephone number, I would tell you. 如果我知道他的电话号码，我就会告诉你。（事实：
高中英语虚拟语气详解和练习(含答案解析)
高中英语虚拟语气讲解及练习
虚拟条件句就是对现实条件的一种虚拟假设，所假设的条件一般不符合事实或与事实相反或在现实中发生的可能性极小。根据时间的不同，虚拟条件句可分为三种，即与现在事实相反的虚拟条件句、与过去事实相反的虚拟条件句
（1）表示与现在事实相反
If I had enough money now, I would lend it to you.
（2）表示与过去事实相反
If he had taken your advice, he wouldn’t have made such a bad mistake.
（3）表示与将来事实相反
I would go shopping with you if it were to be Sunday tomorrow.
1. 虚拟条件句的倒装
在虚拟条件句中，为了强调所假设条件的虚拟性，或突出说话人的一种主观愿望，虚拟条件句可用倒装结构。虚拟条件句的倒装是通过去掉if，把条件从句谓语中的助动词、情态动词或系动词放在句首实现的。例如：Had I been（= If I had been ） in that situation， I would not have let the thief escape away with so much money.
Should there be （= If there should be） a drought， what should we do at that time ？
2. 错综时间条件句
有时条件从句的动作和主句的动作发生的时间并不一致，这时谓语动词的形式应根据它所要表示的具体时间来确定。例如：
虚拟语气讲解和练习(附答案)
高中英语虚拟语气讲解及练习
虚拟条件句就是对现实条件的一种虚拟假设，所假设的条件一般不符合事实或与事实相反或在现实中发生的可能性极小。根据时间的不同，虚拟条件句可分为三种，即与现在事实相反的虚拟条件句、与过去事实相反的虚拟条件句
（1）表示与现在事实相反
If I had enough money now, I would lend it to you.
（2）表示与过去事实相反
If he had taken your advice, he wouldn’t have made such a bad mistake.
（3）表示与将来事实相反
I would go shopping with you if it were to be Sunday tomorrow.
1. 虚拟条件句的倒装
在虚拟条件句中，为了强调所假设条件的虚拟性，或突出说话人的一种主观愿望，虚拟条件句可用倒装结构。虚拟条件句的倒装是通过去掉if，把条件从句谓语中的助动词、情态动词或系动词放在句首实现的。例如：Had I been（= If I had been ） in that situation， I would not have let the thief escape away with so much money.
Should there be （= If there should be） a drought， what should we do at that time ？
2. 错综时间条件句
有时条件从句的动作和主句的动作发生的时间并不一致，这时谓语动词的形式应根据它所要表示的具体时间来确定。例如：
高中英语虚拟语气详解及练习(含答案)
高中英语虚拟语气讲解及练习
虚拟条件句就是对现实条件的一种虚拟假设，所假设的条件一般不符合事实或与事实相反或在现实中发生的可能性极小。根据时间的不同，虚拟条件句可分为三种，即与现在事实相反的虚拟条件句、与过去事实相反的虚拟条件句
（1）表示与现在事实相反
If I had enough money now, I would lend it to you.
（2）表示与过去事实相反
If he had taken your advice, he wouldn’t have made such a bad mistake.
（3）表示与将来事实相反
I would go shopping with you if it were to be Sunday tomorrow.
1. 虚拟条件句的倒装
在虚拟条件句中，为了强调所假设条件的虚拟性，或突出说话人的一种主观愿望，虚拟条件句可用倒装结构。虚拟条件句的倒装是通过去掉if，把条件从句谓语中的助动词、情态动词或系动词放在句首实现的。例如：Had I been（= If I had been ） in that situation， I would not have let the thief escape away with so much money.
Should there be （= If there should be） a drought， what should we do at that time ？
2. 错综时间条件句
有时条件从句的动作和主句的动作发生的时间并不一致，这时谓语动词的形式应根据它所要表示的具体时间来确定。例如：
虚拟语气讲解和练习(附答案)
高中英语虚拟语气讲解及练习
虚拟条件句就是对现实条件的一种虚拟假设，所假设的条件一般不符合事实或与事实相反或在现实中发生的可能性极小。根据时间的不同，虚拟条件句可分为三种，即与现在事实相反的虚拟条件句、与过去事实相反的虚拟条件句
（1）表示与现在事实相反
If I had enough money now, I would lend it to you.
（2）表示与过去事实相反
If he had taken your advice, he wouldn’t have made such a bad mistake.
（3）表示与将来事实相反
I would go shopping with you if it were to be Sunday tomorrow.
1. 虚拟条件句的倒装
在虚拟条件句中，为了强调所假设条件的虚拟性，或突出说话人的一种主观愿望，虚拟条件句可用倒装结构。虚拟条件句的倒装是通过去掉if，把条件从句谓语中的助动词、情态动词或系动词放在句首实现的。例如：Had I been（= If I had been ） in that situation， I would not have let the thief escape away with so much money.
Should there be （= If there should be） a drought， what should we do at that time ？
2. 错综时间条件句
有时条件从句的动作和主句的动作发生的时间并不一致，这时谓语动词的形式应根据它所要表示的具体时间来确定。例如：
高中英语虚拟语气讲解及练习附答案解析
高中英语虚拟语气讲解及练习
虚拟条件句就是对现实条件的一种虚拟假设，所假设的条件一般不符合事实或与事实相反或在现实中发生的可能性极小。根据时间的不同，虚拟条件句可分为三种，即与现在事实相反的虚拟条件句、与过去事实相反的虚拟条件句
（1）表示与现在事实相反
If I had enough money now, I would lend it to you.
（2）表示与过去事实相反
If he had taken your advice, he wouldn’t have made such a bad mistake.
（3）表示与将来事实相反
I would go shopping with you if it were to be Sunday tomorrow.
1. 虚拟条件句的倒装
在虚拟条件句中，为了强调所假设条件的虚拟性，或突出说话人的一种主观愿望，虚拟条件句可用倒装结构。虚拟条件句的倒装是通过去掉if，把条件从句谓语中的助动词、情态动词或系动词放在句首实现的。例如：Had I been（= If I had been ） in that situation， I would not have let the thief escape away with so much money.
Should there be （= If there should be） a drought， what should we do at that time ？
2. 错综时间条件句
有时条件从句的动作和主句的动作发生的时间并不一致，这时谓语动词的形式应根据它所要表示的具体时间来确定。例如：
虚拟语气讲解及练习题(含答案和解释)
高中英语虚拟语气讲解及练习
虚拟条件句就是对现实条件的一种虚拟假设，所假设的条件一般不符合事实或与事实相反或在现实中发生的可能性极小。根据时间的不同，虚拟条件句可分为三种，即与现在事实相反的虚拟条件句、与过去事实相反的虚拟条件句
（1）表示与现在事实相反
If I had enough money now, I would lend it to you.
（2）表示与过去事实相反
If he had taken your advice, he wouldn’t have made such a bad mistake.
（3）表示与将来事实相反
I would go shopping with you if it were to be Sunday tomorrow.
1. 虚拟条件句的倒装
在虚拟条件句中，为了强调所假设条件的虚拟性，或突出说话人的一种主观愿望，虚拟条件句可用倒装结构。虚拟条件句的倒装是通过去掉if，把条件从句谓语中的助动词、情态动词或系动词放在句首实现的。例如：Had I been（= If I had been ） in that situation， I would not have let the thief escape away with so much money.
Should there be （= If there should be） a drought， what should we do at that time ？
2. 错综时间条件句
有时条件从句的动作和主句的动作发生的时间并不一致，这时谓语动词的形式应根据它所要表示的具体时间来确定。例如：
牛津高中英语模块六语法复习题虚拟语气
模块六语法—虚拟语气
编写人：陈尚琢审核人：
一、语气的定义和种类
l、语气是动词的一种形式，它表示说话人对某一行为或事情的看法和态度。
2、语气的种类：
（1）陈述语气: 表示动作或状态是现实的、确定的或符合事实的，用于陈述句、疑问句和某些感叹句。如：
We are not ready. 我们没准备好。What a fine day it is!多好的天气啊!
（2）祈使语气: 表示说话人的建议、请求、邀请、命令等。如:
Open the door, please。请打开门。
（3）虚拟语气: 表示动作或状态不是客观存在的事实，而是说话人的主观愿望、假设或推测等。如：
①If I were you, I should study English. 如果我是你，我就学英语了。
②May you succeed! 祝您成功！
二、虚拟语气在条件从句中的用法
条件句有两类，一类是真实条件句，一类是虚拟条件句。如果假设的情况是有可能发生的，就用真实条件句。句中的谓语用陈述语气。如:
If it doesn’t rain tomorrow, we will go to the park.
如果明天不下雨，我们就去公园。
如果假设的情况是过去或现在都不存在的，或将来不大可能发生的，则用虚拟条件句。
If he had seen you yesterday, he would have asked you about it.
如果他昨天见到你，他会问你这件事的。
在含有虚拟条件句的复合句中，通常主句和从句的谓语都要用虚拟语气。虚拟条件从句和主句的动词形式如下:
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主句
would (should, could, might ) + do
1) If I were you, I shouldn't do that. 2) We would go with you if we had time. 3) We could ask him if he were here. 4) If I knew his telephone number, I would ring him up.
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2. _____ it rain tomorrow, we would have to put off the visit to
the Yangpu Bridge. (1994)
A. Were B. Should C. Would D. Will
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16. _____ I be free tomorrow, I could go with you.
answer.) 5.I wish I had known the answer.(But I didn't.)
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2. I wish I _____ you yesterday? (1988)
A. seen
B. did see
C. had seen D. were to see
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(29) I wish the train _____ so late; then I could have got home
taken
C. would be warned; had not taken
D. would have been warned; had not
taken
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7. I didn't see your sister at the meeting. If she _____, she would have
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21. Should it rain, the crops _____.
A. would be saved B. would have been saved
C. will be saved D. had been saved
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27. If I _____ you, I would try again.
met my brother. (1994)
A. has come B. did come C. came D. had come
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9. You didn't let me drive. If we _____ in turn, you _____ so tired.
(1996)
A. drove; didn't get B. drove; wouldn't get C. were driving; wouldn't get D. had driven; wouldn't have got
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2.表示与过去事实相反，谓语动词的主要 形式如下
条件从句
主句
had + done
would (might / could /should ) + have done
1) If he had seen you yesterday, he would have asked you about it.
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5. If he ______ , he _____ that food.
Luckily he was sent to the hospital
immediately. (1993)
A. was warned; would not take
B. had been warned; would not have
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三、虚拟语气 (The Subjunctive Mood)
表示说的话不是事实，或者是不可能发生的情况，而是
一种愿望、建议或与事实相反的假设等。一般常用于正
式的书面语中。
该语法主要用于if条件状语从句。也可用于主语从句、
表语从句、宾语从句等。
通常有三种情况：
①与过去事实相反。 （过去虚拟）
②与现在事实相反。 （现在虚拟）
A. should come; had seen
B. came; would see
C. come; will see
D. had come; would have seen
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(1) Mr Brown _____ a house if he had enough money.
A. will buy B. would buy C. bought D. has bought
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3. If my lawyer _____ here last
Saturday, he _____me from
going.
A. had been; would have
prevented
B. had been; would prevent
C. were; would prevent
D. were; would have prevented
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Note: 省略连词if。在书面语中，如果虚拟条件句 中有were, had或should，可以if把省略而把 这几个词放到主语之前构成主谓倒装：例如：
1. Should he come (If he should come), tell him to ring me up.
2. Were I you (If I were you), I would not do it. 3. Had he been more careful (If he had been
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(30) _____ I known he needed money so badly, I might have
managed to help him.
A. Unless B. When C. If D. Had
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II:虚拟语气在宾语从句的中的 用法
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1). wish后的宾语从句： 从句中的动词根据时间可采用不同的
A. Could B. Should C. Might D. Must
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19. _____ your letter, I would have written back two days ago. A. If I received B. Should I received C. Had I received D. If I could have received
③与将来事实可能相反。（将来虚拟）
“后退一步法” ①与过去事实相反，在从句中用过
去完成时形式表示。 ②与现在事实相反，用一般过去
时形式表示。 ③与将来事实可能相反，用过去将来时
形式表示。
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I. 虚拟语气在主从复合句中的用法
1. 表示与现在事实相反，谓语动词的主要形式如下：
条件从句 did（be动词一般用were）
A. am B. was C. were D. be
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28. _____ , all the students would hear.
A. If the teacher had spoken louder
B. If the teacher will speak louder
C. Had the teacher spoken louder
before breakfast. A. hadn't arrived B. didn't arrive C. wouldn't arrive D. mustn't arrive
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(31) I wish I ________ to repair the bike, for I only made it worse.
法。即从句中的动词 使用should + 动词原 形，或者将should省略。
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4.We propose that the house should be repaired (repair).
5.The general commanded that the target should be fired (fire) at. 6.They requested that we should sit (sit) down and have a cup of tea. 7.We desire that he should be given (give) a chance. 8.The rules require that players should wear(wear) tennis shoes on the court(网球场).
Subjunctive Mood
虚拟语气
英语动词一般可带有三种不同的语气 (mood)： 陈述语气、祈使语气和虚拟语气。 不同的语气用动词不同的形式 (有的还借助句法形式）来表示。
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1ຫໍສະໝຸດ Baidu
一、陈述语气 (The Indicative Mood)
用来陈述事实，有肯定、否定、疑问或感叹等形式。如：
1. My father and I drove over to the village to see Mr Wu. 2. People don't hibernate. 3. What a strange-looking person (he is)! 4. Are you joking?
more careful), such mistakes could have been avoided.
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1. If she had worked harder, she _____ . (1986)
A. would succeed B. had succeeded C. should succeed D. would have succeeded
A. had tried B. hadn't tried
C. tried D. didn't try
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2.表示要求，命令，建议的虚拟语气。
1.宾语从句。常见动词： 一个坚持，两个命 令，三个建议，四个要求。即
1.insist 2. order, command 3. advise, suggest, propose 4. demand , require, request, desire 这些动词后面的宾语从句要使用虚拟语气用
2) If you had come earlier, you would (might) have met him.
3) I would have called you if I had known your phone number.
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3.表示与将来事实可能相反，谓语动词的主要形式如下：
条件从句
形式，参见虚拟条件句：
1. I wish I were (was) as strong/clever/young as you. (But I am not.)
2. We wish we had paid more attention to our pronunciation.
3.I wish he would try. 4.I wish I knew the answer.(But I don't know the
D. If the teacher spoke louder
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29. What should we do if it _____ tomorrow?
A. should snow B. would snow
C. snow D. will snow
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30. If you _____ 5 minutes earlier, you _____ him.
主句
did should do were to do
Would(could/might/s hould) + do
1) If it should rain, the crops would be saved. 2) If it were to snow tomorrow, they would not go out. 3) If it rained tomorrow, we would not go out.
二、祈使语气 (The Imperative Mood)
用来表示请求、命令或劝告等。 如：
1.Sit down, please. 2.Don't say it in Chinese. Say it in English, please. 3.Let me have a try. 4.Let him go.