虚拟语气语法讲解与习题
虚拟语气讲解及练习(有答案)
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：If we hadn’t been working hard in the past few years ，thing s wouldn’t be going so smoothly.3. 含蓄条件句有时假设的情况并不以条件从句的形式表现出来，而是通过某个介词或介词短语（如：with，otherwise，without，but for，in that position）、上下文或其它方式表现出来。
高考英语虚拟语气专项讲解及练习含答案
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：If we hadn’t been working hard in the past few years ，thing s wouldn’t be going so smoothly.3. 含蓄条件句有时假设的情况并不以条件从句的形式表现出来，而是通过某个介词或介词短语（如：with，otherwise，without，but for，in that position）、上下文或其它方式表现出来。
高中英语虚拟语气讲解及练习和答案
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：If we hadn’t been working hard in the past few years ，thing s wouldn’t be going so smoothly.3. 含蓄条件句有时假设的情况并不以条件从句的形式表现出来，而是通过某个介词或介词短语（如：with，otherwise，without，but for，in that position）、上下文或其它方式表现出来。
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：If we hadn’t been working hard in the past few years ，thing s wouldn’t be going so smoothly.3. 含蓄条件句有时假设的情况并不以条件从句的形式表现出来，而是通过某个介词或介词短语（如：with，otherwise，without，but for，in that position）、上下文或其它方式表现出来。
虚拟语气语法讲解与习题(汇编)
虚拟语气一．语气的分类：二．虚拟语气的用法：（一）虚拟语气在if条件句中的用法：---If I were you, I would give it up. (与现在事实相反)---If I had taken his advice, I would not have made such a mistake. (与过去事实相反)---If she came/should come/were to come, I could ask her for help. (与将来事实相反)2．特殊用法：①错综时间虚拟条件句：条件从句与主句所指时间不一致，主从句的谓语动词要根据假设的时间来定。
---If you had followed the doctor’s advice, you would be much better now.②if条件句虚拟倒装：可以把if从句中的should, were, had置于句首，省略if构成倒装。
---Were I you, I would give it up.---Had I taken his advice, I would not have made such a mistake.---Should she come, I could ask her for help.③含蓄虚拟条件句：有时假设的情况并不以if引导的条件从句表示出来，而是通过一个介词短语或其他方式表示。
常用的词或短语有：without, but for, otherwise, or, but等。
---Without/But for your help, I could not have succeeded.---I should have returned the book last week, but I was too busy. （but后为真实情况）---He was ill, otherwise/or he would have helped us. （otherwise/or前为真实情况）④特殊的if句虚拟：If it were (had been) not for…“要不是…”---If it were not for peace, we could not be living a happy life.---If it had not been for your help, I would have failed.（二）虚拟语气在名词性从句中的用法：1．一些表示坚持，命令，建议，要求的词用于名词性从句中时从句的谓语动词用虚拟（一坚持，二命令，三建议，四要求）---Our teacher suggested that we (should) study hard. (宾语从句)---That we (should) study hard was our teacher’s suggestion. (主语从句)---It was suggested that we (should) study hard. (主语从句)---Our teacher’s suggestion was that we (should) study hard. (表语从句)---Our teacher gave us a suggestion that we (should) study hard. (同位语从句)★suggest表示“暗示”，insist表示“坚持说”时不用虚拟。
2022年高考英语虚拟语气讲解及练习题(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：If we hadn’t been working hard in the past few years ，thing s wouldn’t be going so smoothly.3. 含蓄条件句有时假设的情况并不以条件从句的形式表现出来，而是通过某个介词或介词短语（如：with，otherwise，without，but for，in that position）、上下文或其它方式表现出来。
高中英语虚拟语气讲解及练习
虚拟语气-高中英语语法精讲精练虚拟语气表示说话人的主观愿望、猜测建议或与事实不符的假设。
虚拟语气可分为三种:(1一般虚拟(2混合虚拟(3特殊句式一.一般虚拟的构成:(省略if, 要将should/were/had 提到句首(1. 对现在的虚拟:If S. did/were sth., S. would/could/should doIf I had time, I would attend the meeting.If I were you, I would seize the chance to go abroad.(2 对过去的虚拟:If S. had p.p, S. would/could/should have p.pIf you had taken my advice, you would not have failed in the exam.(3 对将来的虚拟:If S. did/were/should do/were to do, S would/should/could do sth.If you came tomorrow, we would have the meeting.If it were to rain tomorrow, the sports meeting would be put off.If he should not come tomorrow, we should put off the meeting till next day.注意:Had we made good preparations, we might have succeeded.Had it not rained, we would have gone out for a walk.Were I you, I would not do such a thing.二.混合虚拟:(1不同时间的虚拟:If he had listened to me, he would not be in trouble now.If he had told me yesterday, I should know what to do now.(2 虚拟与陈述的混合:He could have passed the exam, but he wasnt careful enough.You should have come earlier, the bus left a moment ago.三.特殊句式:(1.suggest, advise, recommend, propose, order, command, request, require, demand that clause (should do/doHe suggested that we (should save money for the future.(insist的判断(2 It is suggested/advised/ordered/requested/required that clause(should do/do(主语从句(3 My advice/suggestion/request/requirement is that-clause (should do /do (表语从句His suggestion/advice/request/requirement that clause(should do/do is.. (同位语从句(4 It is natural/necessary/strange that-clause (should do/do表惊奇、怀疑、惋惜、不满、理应如此等。
高中英语虚拟语气详解及练习(包含答案)
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：If we hadn’t been working hard in the past few years ，thing s wouldn’t be going so smoothly.3. 含蓄条件句有时假设的情况并不以条件从句的形式表现出来，而是通过某个介词或介词短语（如：with，otherwise，without，but for，in that position）、上下文或其它方式表现出来。
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：If we hadn’t been working hard in the past few years ，thing s wouldn’t be going so smoothly.3. 含蓄条件句有时假设的情况并不以条件从句的形式表现出来，而是通过某个介词或介词短语（如：with，otherwise，without，but for，in that position）、上下文或其它方式表现出来。
高考英语虚拟语气专项讲解及练习含答案
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：If we hadn’t been working hard in the past few years ，thing s wouldn’t be going so smoothly.3. 含蓄条件句有时假设的情况并不以条件从句的形式表现出来，而是通过某个介词或介词短语（如：with，otherwise，without，but for，in that position）、上下文或其它方式表现出来。
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。
We shall go there unless it rains tomorrow. 如果明天不下雨，我们将去那里。
I'll let you use my bike on condition that you keep it clean. 如果你能保持车子干净，我就让你用我的自行车。
虚拟语气解析以及练习题答案详细解答
虚拟语气解析及练习与答案详解虚拟语气一、虚拟语气的运用1、状语从句中的虚拟语气（1）非真实条件句中的虚拟语气（if引导的条件句）说明从句谓语主句谓语例句与现在事实相反动词的过去式（be的过去式一般用were）would/should/could/ might+ 动词原形If I were you, I should buy it.如果我是你，我就买了它。
If I had time, I would study French.如果我有时间，我会学习法语的。
If she knew English, she would not ask me for help.如果她懂英语的话，她不会找我帮忙的。
与过去事实相反had + 过去分词would/should/could/ might+ have + 过去分词If you had got up earlier, you could have caught thetrain.如果你早一点起床，就会赶上火车的。
If you had studied harder last term, you could havepassed the exam. 如果上学期你努力学习的话，你考试就会及格了。
与将来事实相反动词过去式（be用were）/should + 动词原形/wereto + 动词原形would/should/could/ might+ 动词原形If it were fine tomorrow, I would go shopping.如果明天天气好，我就去买东西。
省略if 的用法有were, had,should等可省if，将were/had/should移至句首主句的形式分别与上述三种情况相同。
Were I you, I should buy it.如果我是你，我就买了它。
Had you studied harder last term, you could havepassed the exam.如果上学期你努力学习的话，你考试就会及格了。
虚拟语气详细讲解及经典习题 附答案
虚拟语气一、考点聚焦1、虚拟语气用于条件状语从句中（1）表示与现在事实相反的假设，条件状语从句中的谓语动词用“过去式（be动词的过去式用were）”，而主句中的谓语动词用“would / should/ could / might + 动词原形”。
如：If I were a boy, I would join the army.If the had time, she should go with you.（2）表示与过去的事实相反，条件状语从句中的谓语动词用过去完成时，主句中的谓语动词则用“would / should / might / could + have +过去分词”。
如：If he had taken my advice, he would have succeeded in the competition.（3）表示与将来事实相反，条件状语从句中的谓语动词一般过去时或should(were to) + 动词原形，而主句中的谓语动词则用would / should/could might + 动词原形。
如；If it were to rain tomorrow, the football match would be put off.（4）当条件状语从句表示的行为和主句表示的行为所发生的时间不一致时，动词的形式要根据它所表示的时间作相应调整。
如：If they had worked hard, they would be very tired.(从句说的是过去，主句指的是现在)Were I a boy, I would join the army.Had he taken my advice, he would have succeeded.Were it not for the expense, I would go to Britain.2、虚拟语气用于名词性从句（1）虚拟语气在宾语从句中的运用。
2022年高考英语虚拟语气讲解及练习题(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：If we hadn’t been working hard in the past few years ，thing s wouldn’t be going so smoothly.3. 含蓄条件句有时假设的情况并不以条件从句的形式表现出来，而是通过某个介词或介词短语（如：with，otherwise，without，but for，in that position）、上下文或其它方式表现出来。
（完整版）虚拟语气讲解及练习题（含答案和解释）
（完整版）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：不知道） 3.If there were no air orwater, there would be no living things on the earth. 如果没有水和空气，地球上就不会有生物。
高中英语虚拟语气讲解及练习附答案
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：If we hadn’t been working hard in the past few years ，thing s wouldn’t be going so smoothly.3. 含蓄条件句有时假设的情况并不以条件从句的形式表现出来，而是通过某个介词或介词短语（如：with，otherwise，without，but for，in that position）、上下文或其它方式表现出来。
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：If we hadn’t been working hard in the past few years ，thing s wouldn’t be going so smoothly.3. 含蓄条件句有时假设的情况并不以条件从句的形式表现出来，而是通过某个介词或介词短语（如：with，otherwise，without，but for，in that position）、上下文或其它方式表现出来。
虚拟语气讲解及练习
虚拟语⽓讲解及练习虚拟语⽓虚拟语⽓⼀直都被认为是英语学习中的⼀个难点，因此也便成为了各类考试的热点。
现就虚拟语⽓的⼀些问题归纳如下，以帮助解决拟语⽓这个语法难点。
⼀、动词wish后宾语从句中的虚拟语⽓1．⽤wish表⽰对现在的愿望。
其句⼦结构为：宾语从句的谓语be和were(was)，实义动词⽤过去式。
例：I wish they were at home this time.2．⽤wish表⽰对过去事情的遗憾。
其句⼦结构为：宾语从句的谓语⽤过去完成时或could 现在完成时。
例：I wish I hadn' t hurt him so much。
3．⽤wish表⽰对将来事情的愿望。
其句⼦结构为宾语从句的谓语为would/could/might 动词原形。
例：I wish I might be able to come tomorrow 。
⼆、⽤在⼀般虚拟条件句中的虚拟语⽓（⼀）表⽰与现在、过去、将来事实相反的假设1．与现在事实相反的假设。
其句⼦结构为：从句：if 主语动词的过去式（be变were）其他主句：主语 would(should, could, might) 动词原形其他例：If I were you, I would go with him.2．与过去事实相反的假设。
其句⼦结构为：从句：If 主语过去完成时其他主句：主语 should(would, could, might) 现在完成时其他。
例：If you had studied harder last term, you could have passed exam.3．表⽰对将来事实实现的可能性不⼤的假设。
其句⼦结构为：从句：If 主语 should (were to ) 动词原形其他主句：主语 would (could, should, might) 动词原形例：If he were to go tomorrow. He might tell you.(⼆) 从句和主句要根据各⾃发所⽣的时间选⽤符合具体时间的虚拟语⽓形式1．从句表⽰过去，主句表⽰现在。
虚拟语气讲解及练习(有答案)
虚拟语气讲解及练习虚拟语气在if引导的条件句中的用法三点：从句（条件）主句（目的）表示于现在事实相反的虚拟条件句If+主语+动词的过去式（be用were）If I had time, I would attendthe meeting.主语+would(should couldmight)+动词原型表示与过去事实相反的拟条件句If+主语+had+动词的过去分词If he had hurried ,he couldhave caught the train.主语+would（should couldmight）+have+动词的过去分词表示与将来事实相反的虚拟条件句1、If+主语+动词过去式2、If+主语+were to+ 动词原形3、If+主语+should +动词原形If I were to go abroad ,I wouldgo to America.主语+would（could shouldmight）+动词原型错综时间条件句——主从句时间不一致的情况下的虚拟语气有时条件从句中的动作与主句中的动作，发生的时间不一致，这是动作的形式应根据它所表示的时间加以调整。
If you had followed my advice , you would be better now.If you had studied hard before, you would be a college student now.though引导的方式状语从句中表示与将来事实相反，(表示将来的可能性不大),用would (might, could)+动词原形He acts as if he could win in the game .注意：1.在as if/as though 句中，如果有可能成为事实，用陈述语气。
例：He looks as if he going to be ill.2.as though或as if引导的状语从句，从句主语和主句主语相同时，从句中可省略主语和部分谓语。
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虚拟语气一．语气的分类：二．虚拟语气的用法：（一）虚拟语气在if条件句中的用法：---If I were you, I would give it up. (与现在事实相反)---If I had taken his advice, I would not have made such a mistake. (与过去事实相反)---If she came/should come/were to come, I could ask her for help. (与将来事实相反)2．特殊用法：①错综时间虚拟条件句：条件从句与主句所指时间不一致，主从句的谓语动词要根据假设的时间来定。
---If you had followed the doctor’s advice, you would be much better now.②if条件句虚拟倒装：可以把if从句中的should, were, had置于句首，省略if构成倒装。
---Were I you, I would give it up.---Had I taken his advice, I would not have made such a mistake.---Should she come, I could ask her for help.③含蓄虚拟条件句：有时假设的情况并不以if引导的条件从句表示出来，而是通过一个介词短语或其他方式表示。
常用的词或短语有：without, but for, otherwise, or, but等。
---Without/But for your help, I could not have succeeded.---I should have returned the book last week, but I was too busy. （but后为真实情况）---He was ill, otherwise/or he would have helped us. （otherwise/or前为真实情况）④特殊的if句虚拟：If it were (had been) not for…“要不是…”---If it were not for peace, we could not be living a happy life.---If it had not been for your help, I would have failed.（二）虚拟语气在名词性从句中的用法：1．一些表示坚持，命令，建议，要求的词用于名词性从句中时从句的谓语动词用虚拟（一坚持，二命令，三建议，四要求）---Our teacher suggested that we (should) study hard. (宾语从句)---That we (should) study hard was our teacher’s suggestion. (主语从句)---It was suggested that we (should) study hard. (主语从句)---Our teacher’s suggestion was that we (should) study hard. (表语从句)---Our teacher gave us a suggestion that we (should) study hard. (同位语从句)★suggest表示“暗示”，insist表示“坚持说”时不用虚拟。
---His pale face suggested that he was ill.---The old man insisted that I had stolen his money.2．主语从句中的虚拟语气：It is +形容词/名词+that从句（虚拟），常见的形容词或名词有：natural, important, necessary/essential, strange, surprising, funny, a pity, a shame, no wonder等。
---It is important that we (should) keep the balance of nature.---It is a pity that he (should) go to Beijing alone. (此时should翻译为“竟然”)---I wish I were rich. = If only I were rich. （现在）---I wished he had visited us last night. = If only he had visited us last night. （过去）---I wish I could go to the moon one day. = If only I could go to the moon one day. （将来）---I would rather he stayed at home now/tomorrow. （现在或将来）---I would rather he had stayed at home yesterday. (过去)（五）as if/as though的虚拟语气用法：（as if/though与if用法相同，如果描述的内容与事实相符不用虚拟，---It looks as if (though) someone were running after her now. （现在）---He behaved as if (though) nothing had happened. 他装作若无其事的样子。
（过去）---It looks as if (though) she would live another 100 years. （将来）（六）表示过去未曾实现的想法，意图，诺言，希望等，能这样用的动词有：want, think, hope, plan, mean, expect, intend, suppose等，表达方式有两种：“had+过去分词+to do…”或“过去式+to have done”---I had meant to come, but something happened.= I meant to have come, but something happened.（七）It is (high/about) time that sb. did sth.should do sth.“该是…时候了”---It is time (that) we went home.= It is time (that) we should go home.（八）情态动词用于表示对过去情况的虚拟：should/ought to have done：本应该做某事(shouldn’t/ought not to have done “本不应该做某事”)might have done：本可能做某事(might not have done “本不可能做某事”)could have done：本能够做某事(couldn’t have done “本不能做某事”)need have done：本需要做某事(needn’t have done “本不需要做某事”)---You shouldn’t have told him the bad news, which made things even worse.---I stayed at a hotel while in New York. ---Oh, did you? You could have stayed with Tom.---You needn’t have told him the news; he knew it already.---The car nearly hit me; I might have been killed.巩固练习：1. ---T he weather has been very hot and dry.---Yes. If it had rained even a drop, things would be much better now! And my vegetables ___. （2010北京卷）.A. wouldn't dieB. didn't dieC. hadn't diedD. wouldn't have died2. Teachers recommend parents their children under 12 to ride bicycles to school for safety. (2010福建卷).A. not allowB. do not allowC. mustn’t allowD. couldn’t allow3. If he __________my advice, he wouldn’t have lost his job. （2010湖南卷）.A. followedB. should followC. had followedD. would follow4. George is going to talk about the geography of his country, but I’d rather he_______ more on its culture. （2010江苏卷）.A. focusB. focusedC. would focusD. had focused5. Mark _______ have hurried. After driving at top speed, he arrived half an hour early. （2010天津卷）.A. needn’tB. wouldn’tC. mustn’tD. couldn’t6. --- John went to the hospital alone.--- If he _______ me about it, I would have gone with him. (2010天津卷).A. should tellB. tellsC. toldD. had told7. Had I known about this computer program, a huge amount of time and energy __ . （2010浙江卷）.A. would have been savedB. had been savedC. will be savedD. was saved8. --- Sorry, Professor Smith. I didn't finish the assignment yesterday.--- Oh, you have done it as yesterday was the deadline. ( 2010上海卷).A. mustB. mustn'tC. shouldD. shouldn't9. I _____ have watched that movie---it’ll give me horrible dreams. (2010 山东卷)A. shouldn’tB. needn’tC. couldn’tD. mustn’t10. He did not regret saying what he did but felt that he _____ it differently. (2009 江苏卷)A. could expressB. would expressC. could have expressedD. must have expressed11. The doctor recommended that you _____ swim after eating a large meal. (2009 浙江卷)A. wouldn’tB. couldn’tC. needn’tD. shouldn’t12. But for their help, we _____ the program in time. (2009 安徽卷)A. can not finishB. will not finishC. had not finishedD. could not have finished13. If the weather had been better, we could have had a picnic. But it _____ all day. (2008 全国卷二)A. rainedB. rainsC. has rainedD. is raining14. What a pity! Considering his ability and experience, he ____ better. (2008 江西卷)A. need have doneB. must have doneC. can have doneD. might have done15. ---I’m sorry. I ____ at you the other day.---Forget it. I was a bit out of control myself. (2008 江苏卷)A. shouldn’t shoutB. shouldn’t have shoutedC. mustn’t shoutD. mustn’t have shouted16. Thank you for all your hard work last week. I don’t think we ____ it without you. (2008 山东卷)A. can manageB. could have managedC. could manageD. can have managed17. I told your friend how to get to the hotel, but perhaps I ____ have driven her there. (2007 陕西卷)A. couldB. mustC. mightD. should18. ---My cat’s really fat.---You ____ have given her so much food. (2007 浙江卷)A. wouldn’tB. couldn’tC. shouldn’tD. mustn’t19. _____ what was going to happen, I would never have left her alone.A. Had I knownB. If I knowC. If I knewD. If I have known20. If you had spoken clearly, you would ______.A. understand itB. be understoodC. have understoodD. have been understood21. ______ to do the work, I should do it some other day.A. If were IB. I wereC. Were ID. Was I22. If I ____ the meaning of the word, I would not have to look it up.A. had knownB. knewC. knowD. knowing23. We didn’t know his telephone number, otherwise we ______ him.A. would have telephonedB. must have telephonedC. would telephoneD. had telephoned24. _____ it rain tomorrow, we would have to put off the visit to the Yangpu Bridge.A. WereB. ShouldC. WouldD. will25. If it were not for the fact that you ____ ill, I would ask you to do this right now.A. wereB. had beenC. areD. be26. ---Did you remind him of the meeting? ---No, if I ____ home, I would have.A. wasB. had beenC. wereD. should be27. Were it not for the debts, we ______ all right.A. would beB. would have beenC. wereD. are28. Without electricity human life _____ quite different today.A. isB. willC. would have beenD. would be29. You didn’t let me drive. If we ____ in turn, you ____ so tired.A. drove; didn’t getB. drove; wouldn’t getC. were driving; wouldn’t getD. had driven; wouldn’t have got30. _____ for the free tickets, I would not have gone to the film so often.A. If it is notB. Were it notC. Had it not beenD. If they were not31. The patient insisted that he ____ ill and ____ to the hospital.A. wasn’t; wasn’t sentB. wasn’t; shouldn’t be sentC. shouldn’t; wasn’t sentD. shouldn’t be; shouldn’t be sent32. I would have invited her to the party but I _____ her well.A. don’t knowB. knowC. hadn’t knownD. didn’t know33. It is high time that the boy _____ be sent to school.A. wouldB. shouldC. willD. shall34. She says she’d rather he _____ tomorrow instead of today.A. had leftB. should leaveC. leavesD. left35. Sometimes I wish I ______ in a different time and a different place.A. be livingB. would liveC. were livingD. would have lived36. I wish I ____ longer this morning, but I had to get up and come to class.A. could have sleptB. sleptC. might have sleptD. have slept37. I would love ____ to the party last night but I had to work extra hours to finish a report.A. to goB. to have goneC. goingD. having gone38. If he _____ his legs yesterday, he ____ the Summer Palace with us now.A. hadn’t hurt; would visitB. hadn’t hurt; would have visitedC. didn’t hurt; would visitD. didn’t hurt; would have visited39. When a pencil is partly in a glass of water, it looks as if it _____.A. breaksB. has brokenC. were brokenD. had been broken40. It is necessary that everyone here ____ for his own experiment.A. get readyB. gets readyC. must get preparedD. must get ready。