虚拟语气的几点特殊用法
虚拟语气
虚拟语气一、I f引导的条件从句主句从句1、现在would +动词原形一般过去时/were2、将来would +动词原形were to +动词原形/ should +动词原形3、过去would +现在完成时过去完成时Examples：1．If I had time, I would go now.2．If it were to/should snow here tomorrow, we would stay at home.3．If you had studied hard, you would have passed the examination.必须注意如下几点:1. 主句中的would 可换成could（能够/会）might（可能/也许）If I had listened to my father, I might have finished the job in time.2. 混合型的虚拟语气（主句与从句的时间不一致）If you had listened to me, you would be a teacher now.倒装句：当省略if 时，should/were/had 提到主语的前面构成倒装句。
If I had earned enough money, I would have bought a car.--------Had I earned enough money, I would have bought a car.If it were to rain tomorrow, I would not go there.--------Were it to rain tomorrow, I would not go there用其他词或词组来代替if 表示条件without：如果没有/如果不but for：要不是only that/ but that（要不是）otherwise1)But for your help, I would not have succeeded.2)I would go with you only that I am too busy.3)She would have helped us but that she was short of money at that time.4)I am very busy now, otherwise I would go there with you.5)I was very busy yesterday, otherwise I would have gone there with you.二、某些动词后的宾语从句形式：（should）+ do 或(should) + be done建议suggest/propose/advise 命令order/ command要求ask/require/demand/request希望desire坚持insist其他agree/ decide/ determine/ prefer/ urge/ argue/ arrange/ beg/ pray/ prefer/ recommend Example：He suggested that we (should )hand in our homework quickly.He suggested that our homework (should)be handed in quickly.相应的过去分词、名词形式也要用虚拟语气1)Bill suggested that everyone should have a map.（宾语从句）2)It was suggested that everyone should have a map. （主语从句）3)It was Bill’s suggestion that everyone should have a map.（同位语从句）4)His suggestion was that everyone should have a map.（表语从句）5)We are going to discuss his suggestion that everyone should have a map.（同位语从句）三、It is/was + adj. + that……… 形式：should + do/ be doneIt is important that everyone should obey the law.形容词：anxious/ appropriate/ desirable/ eager/ essential/ impossible/ important/ incredible/ insistent/ natural/ necessary/ proper/ possible/ urgent/ vital/ willing四、在lest/ for fear that（惟恐）引导的从句中形式: should+ do/ be doneHe didn’t dare to go out lest someone should recognize him.He didn’t dare to go out lest he sh ould be recognized by the others.五、w ish后的宾语从句1．与现在或将来的愿望相反形式：一般过去时I wish I knew his address./ I wish I could help you.2．与过去的愿望相反形式：过去完时I wish you had written to him.补充内容：1.I wished that I knew his address.2.wish that + would doa. 对现状不满或希望将来有所改变I wish that you would answer my question. I wish the price of the petrel would come down.b. 一种请求I wish you would help me.注意：hope后不用虚拟语气形式六、If only要是……该多好!If only I were a girl.If only I had learned Russian before.七、W ould rather/ would as soon/ would sooner/ had rather 宁愿1.would rather sb. did………2.would rather sb. had done……..Examples:1)I would rather you were a girl. 2)I would rather you had told me the truth.比较：would rather ……. than…….. I would rather die than marry her.I would rather to have gone with you last night. I would rather to have gone with you last night.八、a s if/ as though的从句中He talks as if he knew the answer. He acts as if nothing had happened.比较：He walked here and there，as if looking for something.He opened his mouth as if to say something.九、It is time/ It is about time/ It is high time +sb did该是…….时候了It is time you went to school. It is high time we left for Beijing. 比较：It is time for me to do the job. It is time I did the job.It is the first time I have seen the film十、其他用法1）表示祝愿等（多用动词原形）God damn it!Long live Chairman Mao!So be it.(就这样吧。
完整版)虚拟语气用法归纳
完整版)虚拟语气用法归纳虚拟语气是动词的一种形式，表示说话人对某一行为或事情的看法和态度。
语气的种类包括陈述语气、祈使语气和虚拟语气。
陈述语气用于陈述句、疑问句和某些感叹句，表示动作或状态是现实的、确定的或符合事实的。
例如：“XXX.”，“XXX?”和“How good a teacher she is!”祈使语气表示说话人对对方的请求或命令。
例如：“Never be XXX!”和“Don’t et to turn off the light.”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。
例如：“If I were a bird。
I could fly in the air.”，“I wish I could pass the XXX.”和“May you succeed!”在简单句中，虚拟语气常用于情态动词的过去式用于现在时态时，表示说话人的谦虚、客气、有礼貌、或委婉的语气，常用于日常会话中。
例如：“XXX to show me the way to the post office?”和“It would be better for you not to stay up too late.”虚拟语气还可以用于表达祝愿，常用“may+动词原形”表示。
例如：“May good luck be yours!”，“May you be happy!”和“May you do even better!”。
还可以用于表达愿望和建议。
例如：“If only XXX.”和“XXX.”如果我现在有时间，我会和他们一起去。
(陈述语气)如果我现在是你，我就会和他们一起去。
(虚拟语气)与过去事实相反：若与过去事实相反，条件从句的谓语用过去完成时(be动词用had been)，主句谓语用“should (would。
could。
might)+have+过去分词”。
如：如果我昨天有时间，我就和他们一起去了。
虚拟语气讲解整理
c. wasn’t killed killed
d. would not have been
２．虚拟语气的省略
在条件句中，可省略 if，把were ,had, should 提到 句首，变为倒装句式． If I were at school again, I would study harder.
Were I at school again, I would study harder.
ou would be a college student now.
如果你努力学习的话，你现在就会是大学生 了．
The Subjunctive Mood 典型例题
4. Jean doesn’t want to work right away because she thinks that if she ______ a job she probably wouldn’t be able to see her friends very often.
My idea is that we (should ) think it over before accepting it.
My suggestion that we (should) have a meeting has been accepted by others.
We all agree to that suggestion that the meeting (should) be put off.
2. If only 引导的感叹句（要是．．．该有多好啊) 表示现在的情况,应用过去式; 如果是过去的情况, 应用过去完成时态
If only I knew the answer!
If only I had seen the film yesterday!
虚拟语气用法详解
虚拟语气语气（mood）也是动词的一种形式变化。
这和中文中的语气是不一样的。
它表示说话者对所指的动词或状态所持的态度，而且，在谓语动词上有所体现，而中文没有体现。
语气可分为三种：陈述语气、祈使语气和虚拟语气。
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、虚拟条件句1．主句和从句都与现在事实相反时，从句用一般过去时，be的形式要用were，主句用would/could/ should/might+不定式一般式。
If I were you, I should not go with him.2．主句和从句都与过去事实相反时，从句用过去完成时，主句用would/should/could/might+不定式完成式。
If I had tried hard last term, I would have succeeded.3．当主句和从句都与将来事实相反，或指不大可能发生的事的时候，从句和与现在事实相反的从句时态相同，或用should/were to+不定式一般式，主句和与现在事实相反的主句相同。
If it rained/were to rain/should rain tomorrow, the match would be put off.4．在使用虚拟条件句时，由于语言环境的千差万别，各种时间关系混合使用是很常见的。
如果逻辑上讲得通，主句和从句的动词时态可进行各种各样的搭配。
If it hadn't rained those days, （从句与过去事实相反）1 work would be finished next week. （主句与将来事实相反）2.here wouldn't be any water in the river now. （主句与现在事实相反）一、语气及其种类1．语气（mood）语气是一种动词形式，表示讲话人对某一行为或事情的看法和态度。
初中英语知识点总结：虚拟语气
初中英语知识点总结：虚拟语气虚拟，在汉语中表示一种假设的，不存在的情况，同样，英语中虚拟语气是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。
在初中阶段，虚拟语气一般用于下列情况：1、与现在事实相反若与现在事实相反，虚拟语气的条件从句的谓语用过去式，主句谓语用“should +动词原形”。
如：If I were you, I would take an umbrella. 如果我是你，我会带把伞。
If I knew her number I could ring her up. 要是我知道她的电话号码，我就可以给她打电话了。
2、与过去事实相反若与过去事实相反，从句：主语+had done, 主句：主语+should/would/could/might+have done，例如：If I’d left sooner, I’d have been on time. 要是我早点动身，我就准时到了。
If I had got there earlier, I should/could have met her. 如果我早到那儿，我就会见到她。
3、与将来事实相反从句：①if+主语+were to do主句：①主语+should/would/could/might+do②if+主语+did/were②主语+should/would/could/might+do③if+主语+should+do③主语+should/would/could/might+do例如：If he went, would you go too? 如果他去，你也去吗？If he should come here tomorrow, I would talk to him. 如果他明天来这儿的话，我就跟他谈谈。
注意与说明：对于与将来事实相反的情形，请注意以下几点：一是这里说的与将来事实相反，实为对将来情况的推测；二是此用法中的条件从句谓语除用过去式外，有时也用“should+动词原形”或“were to+动词原形”；三是当条件从句使用“should+动词原形”这样的谓语时，主句谓语除可用“shoul d +动词原形”这样的虚拟语气外，也可用陈述语气或祈使语气。
关于英语虚拟语气的用法总结
关于英语虚拟语气的用法总结英语虚拟语气的用法总结11、表示与现在事实相反的情况：从句：主语+过去时主句：主语+should/would/could/might+doeg：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.2、表示与过去事实相反的情况从句：主语+had+done主句：主语+should/would/could/might+have doneeg：1. If I had got there earlier,I should/could have met her.如果我早到那儿,我就会见到她. (事实：去晚了)2.If he had taken my advice,he would not have made such a mistake.如果他听我的劝告的话,就不会犯这样的错误了. (事实：没有听我的话)3、表示对将来情况的主观推测从句：主句①if+主语+were to do ：①主语+should/would/could/might+do②if+主语+did/were ②主语+should/would/could/might+do③if+主语+should+do ③主语+should/would/could/might+doeg：如果他明天来这儿的话,我就跟他谈谈.(事实：来的可能性很小)2.If there were a heavy snow next Sunday,we would not go skating.如果下周日下大雪,我们就不能去滑冰了.(事实：不知能否下雪)3.If she were to be here next Monday,I would tell her about the matter.如果她下周一来这儿的话,我就会告诉她这件事的始末.英语虚拟语气的用法总结2第一部分：语气的定义和种类1 语气(mood)语气是动词的一种形式，表示说话人对其中一行为或事情的看法和态度。
什么是虚拟语气的情态动词
什么是虚拟语气的情态动词？虚拟语气（Subjunctive Mood）是英语中用于表达假设、愿望、建议、命令等非真实情况的一种语气形式。
在虚拟语气中，情态动词（Modal Verbs）在某些情况下会出现特殊的形式来表示虚拟语气。
以下是一些常见的情态动词在虚拟语气中的用法：1. could：-表示能力或可能性的虚拟：He could win the game if he practiced more.（如果他多练习的话，他可能会赢得比赛。
）-表示礼貌的虚拟：Could you please pass me the salt?（你能给我递一下盐吗？）2. would：-表示愿望或假设的虚拟：I wish he would come to the party.（我希望他能来参加派对。
）-表示请求或建议的虚拟：I would suggest that you study harder for the exam.（我建议你为考试更加努力学习。
）3. might：-表示可能性的虚拟：It might rain tomorrow, so bring an umbrella.（明天可能会下雨，所以带把伞。
）4. should：-表示建议或命令的虚拟：He should apologize for his behavior.（他应该为自己的行为道歉。
）5. had better：-表示建议或命令的虚拟：You had better be on time for the meeting.（你最好准时参加会议。
）6. ought to：-表示责任或建议的虚拟：She ought to help her parents with the housework.（她应该帮助父母做家务。
）在使用情态动词时，需要注意以下几点：-情态动词一般不加s，即第三人称单数形式和其他人称形式一样。
-在虚拟语气中，情态动词后面的动词一般使用原形，例如：I wish I could go.（我希望我能去。
(完整版)高中虚拟语气用法详解
一、什么是虚拟语气虚拟语气是一种动词形式，表示说话人的一种愿望，假设，怀疑，猜测，建议等含义，虚拟语气所表示的含义不是客观存在的事实。
If I were you, I'd take them away. 如果我是你的话，我就会带走他们。
（不可能是你，所以这是不存在的事实，所以用虚拟语气）If I had met Tom, I could have told him. 如果我碰见了Tom，我就告诉他了。
If I had time, I could come to help you. 如果我有时间，我会来帮助你的。
He suggested that our class should be divided into five groups. 他建议说我们的班应该分成五个小组。
He speaks to us as if he had been there. 他给我们讲的好像他去过那儿。
二、虚拟语气的用法虚拟语气在一般用于简单句，宾语从句，主语从句，表语从句，壮语从句以及同位于从句。
（下面我们分别看一下）1) 虚拟语气用在简单句中，表示祝愿，命令，它的谓语动词就是原形。
May you be happy. 祝你幸福。
May you have a good time. 祝愿你玩的痛快。
May the friendship between us last long. 祝愿我们的友情天长地久。
Have a good journey! 祝愿你旅途愉快！You go out！你出去！2) 虚拟语气用在宾语从句中。
在suggest, advise, propose, insist, demand, desire, request, require, decide, order, command等动词后的宾语从句中，要用虚拟语气，表示建议、要求、决定或命令等，其谓语动词形式为should+动词原形，其中should可以省略，主句中的时态不限。
虚拟语气'四种形式'及'三点注意'
虚拟语气“四种形式”及“三点注意新疆哈密石油高级中学常玉国刘雪娟虚拟语气，作为日常交际应用中常常出现的一种语言现象，一直是高考题几乎年年都要考到的一个热点，但对于中国学生来说，它又是一个难点。
无怪乎许多同学在学完虚拟语气后，常常会叹道：If there were no subjunctive mood ,English would be easier.本文结合笔者多年教学实践，以历年高考题为例证，谈谈学好虚拟语气需要掌握好的“四种形式”和“三点注意”。
一、掌握虚拟语气的四种主要形式为了理解与记忆的方便，我们把常见的虚拟语气现象归纳为以下四类：(一)条件句+主句这是虚拟语气最常见的形式，依据表现时间的不同，又可分为表1所示几种形式。
形式虽多，但较规范，可依据上下文的提示解题：表1：“条件从句+主句”的虚拟形式例1：The rice______if you had been more careful.A. would not be burningB. would not burnC. would not have burntD. would not burnt从if条件句中我们可以判断这是对过去的虚拟，对照上表，选择C（注：从句可在主句前，亦可在主句后）。
例2：If my lawyer____ here last Saturday, he_____ me from going.(MET89)A. had been ;would have prevented.B. had been; would preventedC. were; would preventD. were; would have prevented从last Saturday 我们可知道这是对过去的虚拟，对照上表，此题选A。
例3：I didn’t see your sister at the meeting. If she______ she would have met my brother. (MET94)A. has comeB. did comeC. cameD. had come从上文I didn’t see的陈述中，我们可看出she并没来，且下文主句中的would have met 亦给了我们足够的补充，据上表则选D。
虚拟语气讲解(整理)
（3）虚拟语气在 在主语从句中
A.在句型 “It is important (necessary, strange, natural) that .... ” 中，that 后面的从句中的谓语动词 用： should + 动词原形
1. 我们有必要出去散散步。 It’s necessary that we should have a walk now.
2.用于表示命令、建议、要求等一类词后面的宾语从句。 insist, order, command, suggest, advise, propose, require, request, demand, desire etc.
We suggested that the meeting (should) be put off.
7. It is of the utmost importance that you ______ here on time. a. be b. shall be c. are to be d. must be
三、虚拟语气在其他从句中
1. It is (high / about ) time that…从句中的谓 语动词用过去式或should＋动词原形，should 不能省略． It is high time that you went / should go to school.
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).
虚拟语气用法详解
虚拟语气用法详解一、条件句中的虚拟语气1.条件句中虚拟语气的形式从句中提出一种与客观现实不相符或根本不可能存在的条件，主句会产生的一种不可能获得的结果。
条件句中的虚拟语气根据不同的时间有三种不同的形式。
2.条件句中的虚拟语气的举例(1) 将来时的条件句中的虚拟语气。
如：If he should go to Qing Hua University, he would make full use of his time. 如果他要上清华大学的话，他就会充分利用他的时间了。
If he were to come here, he would tell us about it. 如果他要来的话，他会通知我们一声。
(2) 现在时的条件句中的虚拟语气。
如：If he were free, he would help us. 要是他有空的话，它会帮助我们的。
If he studied at this school, he would know you well. 如果他在这所学校学习的话，它会对你很熟悉。
(3)过去时的条件句中的虚拟语气。
如：If I had seen the film, I would have told you about it. 我如果看过这场电影，我会把电影内容告诉你了。
If I had got there earlier, I would have met Mr. Li. 如果我早点到那儿，我就会会到了李先生。
3.运用条件句中的虚拟语气时，须注意的几个问题(1)当从句的主语为第三人称单数时，谓语动词若是系动词be时，可用was 代替wer e。
但在倒装虚拟结构及if I were you, as it were 中，只能用were。
如：Were I ten years younger, I would study abroad. 要是我还年轻十岁的话，我会去国外学习。
If I were you, I would try my best to grasp the chance. 要是我是你的话，我要尽力抓住这次机会。
初中英语虚拟语气初中英语知识点总结虚拟语气
初中英语虚拟语气初中英语知识点总结虚拟语气虚拟，在汉语中表示一种假设的，不存在的情况，同样，英语中虚拟语气是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。
在初中阶段，虚拟语气一般用于下列情况：一、条件状语从句1、与现在事实相反若与现在事实相反，虚拟语气的条件从句的谓语用过去式(be通常用were)，主句谓语用“should (would, could, might)+动词原形”。
如：If I were you, I would take an umbrella. 如果我是你，我会带把伞。
（事实上我不可能是你）If I knew her number I could ring her up. 要是我知道她的电话号码，我就可以给她打电话了。
(事实上我不知道)2、与过去事实相反若与过去事实相反，从句：主语+had done ，主句：主语+should/would/could/might+have done ，例如：If I"d left sooner，I"d have been on time. 要是我早点动身，我就准时到了。
(但我动身太迟了)If I had got there earlier, I should/could have met her. 如果我早到那儿，我就会见到她。
（事实：去晚了）3、与将来事实相反从句：①if+主语+were to do 主句：①主语+should/would/could/might+do②if+主语+did/were ②主语+should/would/could/might+do③if+主语+should+do ③主语+should/would/could/might+do例如：If he went，would you go too? 如果他去，你也去吗?(大概他不会去)If he should e here tomorrow, I would talk to him. 如果他明天来这儿的话，我就跟他谈谈。
虚拟语气
. 虚拟语气语气：共分为三大类，陈述句，祈使句，虚拟语气。
虚拟语气是一种特殊的动词形式，一是用来表示说话人所说的话不是一个事实，而是一种假设、猜测、怀疑等(在条件从句中或让步状语从句中)；一是表示说话人的愿望、要求、命令、建议等(在宾语从句、表语从句、同位语从句)使用虚拟条件句要注意的几点：１．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，被称为：错综时间条件句“，动词的形式要根据它所表示的时间作出相应的调整．If you had followed my advice , you would be better now.如果你听我的建议，你现在就会痊愈了If you had studied hard before, you would be a college student now.如果你力学习的话，你现在就会是大学生了．２．省略句在条件句中，可省略if，把were ,had, should 提到句首，变为倒装句式．If I were at school again, I would study harder.Were I at school again, I would study harder.If you had come earlier, you would have met him.Had you come earlier, you would have met him.If it should rain tomorrow, we would not go climbing.Should it rain tomorrow, we would not go climbing.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.I wish (that) I had seen the film last night.I wish (that) I would\could go.2.用于表示命令、建议、要求等一类词后面的宾语从句。
虚拟语气的用法归纳
语气虚拟语气的用法归纳1、虚拟条件句的三种基本类型：与现在事实相反、与过去事实相反、与将来事实相反。
条件句有真实条件句和非真实(虚拟)条件句两种。
真实条件句所表示的假设是有可能发生的，而非真实条件句则通常表示一种假想，与事实相反或不大可能会发生：If I have time, I will go with them. 假若我有时间，我就同他们去。
(陈述语气)If I were you, I would go with them. 假若我是你，我就同他们去。
(虚拟语气)▲与现在事实相反若与现在事实相反，条件从句的谓语用过去式(be通常用were)，主句谓语用“should (would, could, might)+动词原形”：If I knew her number ，I could ring her up. 要是我知道她的电话号码，我就可以给她打电话了。
(可惜我不知道)▲与过去事实相反若与过去事实相反，条件从句的谓语用过去完成时(had+过去分词)，主句谓语用“should (would, could, might)+have+过去分词”：If I’d left soone r，I’d have been on time. 要是我早点动身，我就准时到了。
(但我动身太迟了)▲与将来事实相反若与将来事实相反，条件从句的谓语用过去式(be通常用were)，主句谓语用“should (would, could, might)+动词原形”：If I asked him，I’m sure he’d help us. 如果我向他提出要求，肯定他会帮助我们。
(不过我不打算这样做)注：几点特别说明①主句谓语中的should主要用于第一人称后。
would, might, could的大致区别是：would表示结果，might表示可能性，could表示能力、允许或可能性。
比较：If you tried again ，you would succeed. 要是你再试一试，你就会成功的。
虚拟语气的几点特殊用法
虚拟语气的几点特殊用法虚拟语气的几点特殊用法1、在错综条件句子中，虚拟条件从句和主句动作发生的时间不一致，因此，主句和从句的谓语动词应根据所指的时间选用适当的虚拟语气形式。
例如：1）If I were you，I wouldn\'t have missed the film last night．如果我是你，我就不会错过昨天晚上的那部电影。
（从句与现在事实相反，主句与过去事实相反。
）2）If he had followed the doctor\'s advice，he would recover already．如果他遵照医生的劝告，现在病就好了。
（从句与过去事实相反，主句与现在事实相反。
）2、在if虚拟条件句中，有时可把连词省去，采用倒装语序把谓语动词were或助动词did，had，should 移到句首构成非真实条件从句的另一种句型，其意思不变。
例如：1）Had we time to spare，we would be glad to go to the park．如果能抽出时间，我们很乐意逛公园。
2）Were it not for the discovery of electricity，the modern world would experience great inconveniece．假如没有发现电，现代世界将很不方便。
3、有时假设的情况不用if引导虚拟条件从句来表述，而用介词（如without，but for等）引出的短语、分词（如supposing等）引出的短语、并列连词（如or，otherwise，but，though等）、由动词suppose引出的祈使句或通过上下文的意思来表达。
此时句中谓语动词仍采用虚拟语气的相应形式。
例如：1）But for your advice，I would not be able to do this work．要不是你的劝告，我是不会做这份工作的。
(完整)虚拟语气用法总结,推荐文档
虚拟语气的用法总结语气：语气是动词的一中形式，它表示说话人对某一行为或事情的看法和态度。
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 ready. What a fine day it is!（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.应注意以下几点：1.主语通常是第二人称you，但多不出现，动词用原形，否定用do not 或者don’t 加动词原形（或be）如Be careful next time. Don’t smoke here.2.有时为了强调，主语也可以出现，而且可以是第三人称，谓语动词不加-s或者-es 如Yoube quiet. He stand up.3.祈使语气可以用do加强语气如Do come to see this Sunday.4.在Let’s 的祈使句后，疑问部分通常用shall we；在Let us后，疑问部分用will you 如Let’sgo out for a walk after supper，shall we? /Let us clean our classroom, will you?5.祈使句与连词and连用时相当于一个条件句，而and之后则是表示结果。
如Think hardand you will have a good idea.（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If I were you, I should study English.一．虚拟语气在条件从句的用法条件句有两类，一类是真实条件句；一类是非真实条件句，也就是虚拟条件句。
如果假设的情况是有可能发生的，就是真实条件句，谓语要用陈述语气。
如If it doesn’t rain tomorrow, we will go to the park.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，则是虚拟条件句。
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虚拟语气的几点特殊用法1、在错综条件句子中，虚拟条件从句和主句动作发生的时间不一致，因此，主句和从句的谓语动词应根据所指的时间选用适当的虚拟语气形式。
例如：1)If I were you,I wouldn't have missed the film last night.如果我是你，我就不会错过昨天晚上的那部电影。
(从句与现在事实相反，主句与过去事实相反。
)2)If he had followed the doctor's advice,he would recover already.如果他遵照医生的劝告，现在病就好了。
(从句与过去事实相反，主句与现在事实相反。
)2、在if虚拟条件句中，有时可把连词省去，采用倒装语序把谓语动词were或助动词did,had,should移到句首构成非真实条件从句的另一种句型，其意思不变。
例如：1)Had we time to spare,we would be glad to go to the park.如果能抽出时间，我们很乐意逛公园。
2)Were it not for the discovery of electricity,the modern world would experience great inconveniece.假如没有发现电，现代世界将很不方便。
3、有时假设的情况不用if引导虚拟条件从句来表述，而用介词(如without, but for等)引出的短语、分词(如supposing等)引出的短语、并列连词(如or,otherwise,but,though等)、由动词suppose引出的祈使句或通过上下文的意思来表达。
此时句中谓语动词仍采用虚拟语气的相应形式。
例如：1)But for your advice,I would not be able to do this work.要不是你的劝告，我是不会做这份工作的。
2)Victor obviously doesn't know what's happened,otherwise he wouldn't have made such a stupid remark.显然维克多不知道发生了什么事情。
不然的话，他就不会说这样愚蠢的话了。
4、在一些表示愿望、建议、请求、命令等含义的动词后面的宾语从句中，谓语动词用动词原形或"should＋动词原形"表示虚拟语气。
这类动词有ask,demand, insist,order,propose,move,desire,require等。
例如：1)They demanded that the aggressor troops(should)be withdrawn immediately.他们要求立即撤出侵略军。
2)I moved that he(should)be discharged for his serious mistake.我建议，由于他犯有严重错误，应解除他的职务。
5、在"would(had)rather(would sooner,would as soon)＋宾语从句"句型中，要求后面的宾语从句用虚拟语气。
但这种虚拟语气表示的不是与事实相反的假设，而是一种尚未实现的愿望，其从句谓语动词用一般过去时。
例如：1)I would rather you came next Friday.我希望你下周五来。
2)I'd just as soon you didn't speak rudely to her.我真希望你别对她那么粗鲁地讲话。
6、在和idea,necessity,plan, motion,order,proposal,recommendation,suggestion,under- standing等词有关的同位语或表语从句中，谓语动词用动词原形或"should＋动词原形"表示虚拟语气。
例如：1)M y idea is that the group(should)hold another session to discuss the problem.我的意见是小组召开另一次会议来讨论这个问题。
2)Emphasis is laid on the necessity that all the objectives to be attained be taken into account before starting a new project.我们强调在开始制定一个新的计划之前，必须把要达到的所有目标都考虑进去。
7、在某些"It is＋形容词＋that..."句型中，如"It is important(necessary,essential, natural,desirable,unusual,pity,strange)that..."，that所引导的主语从句中谓语动词均用动词原形或"should＋动词原形"来表示虚拟语气。
例如：1)It is highly desirable that a new president be appointed for this college.人们迫切地希望能给这个学院派一个新院长。
2)It is strange that the girl(should)be so arrogant.真奇怪，这个女孩竟会如此傲慢。
8、在"It is ordered(suggested,demanded,moved,planned等)＋that..."这个句型中，that引导的主语从句要用虚拟语气形式，谓语动词用动词原形或"should＋动词原形"。
例如：1)It is moved that Lucy give a performance at the party.有人提议露茜在晚会上表演一个节目。
2)It was suggested that more teachers(should)be sent there to help them.有人建议派更多的老师去那儿帮助他们。
9、as if /though可以引出一个状语从句也可以引出一个表语从句。
当as if／though跟在be，feel，look，seem，sound等系动词之后时，引导的是表语从句；如果主句的谓语动词不是联系动词be等，as if／though引导的则是方式状语从句。
无论是哪种类型的从句，只要从句的内容是不真实的，都必须用虚拟语气。
当从句表示与现在的事实相反，谓语动词用一般过去时；表示与过去事实相反要用"had＋过去分词"；表示与将来可能相反的则用"would(could，might)＋动词原形"。
例如：1)I feel as if I were going to faint.我感到我像要昏过去似的。
(与现在事实相反的表语从句)2)She cried as if her heart could be broken.她哭的好像心都要碎了。
(与将来可能相反的主语从句)10、在It is(about /high)time引导的定语从句中，也可以根据需要使用虚拟语气，用以表示"(此刻)该做……而没有做"的意思，其谓语动词用过去时或"should＋动词原形(用should 时，不能将其省略)"。
例如：1)It is time I should leave.我该走了。
2)It is about time that you got(should get) dressed.你该穿衣服了。
11、if only引导的是省略了表示结果的主句的虚拟结构，现在已成为惯用法，表达愿望。
从句用过去时表示现在没有实现的愿望；对过去没有实现或不能实现的愿望，从句就用过去完成时。
这类句型表示一种不真实的条件，常译成"要是……就好了！"例如：1)If only I had taken mother's advice.我要是听取妈妈的建议就好了。
2)If only I could speak several foreign languages.我要是能讲几种外语就好了。
12、在以in order that,so that,lest引导的目的状语从句中，谓语动词一般用虚拟语气。
从句中的谓语动词用"may(might)＋动词原形"或"should＋动词原形"。
在以lest引导的从句中，谓语动词用"should＋动词原形"。
例如：1)She stayed at home for a few days so that she might take care of her sick mother.她在家里呆了好几天，以便能照顾生病的母亲。
2)The teacher explained the sentences again and again in order that the students could understand them clearly.老师一再解释这些句子以便学生能够清楚地理解。
虚拟语气详解在英文句子中，谓语动词的语气是用来表示说话人对所讲内容的态度、看法以及心情等。
英文句子中谓语动词的语气有三种：A）直陈语气（The Indicative Mood）直陈语气用于直截了当地陈述事实、描述状态：He has published quite a number of essays this year .他今年已发表了好几篇论文。
B) 祁使语气（The Imperative Mood）祁使语气用于提出请求、命令、建议或是劝告等：Wait outside until you are asked . 请在外面等候，请你进再进去。
Let's just take a break, shall we ? 我们休息一会儿，好吗？C) 虚拟语气（The Subjunctive Mood）虚拟语气用于表示主观愿望和假设的虚拟情况。
虚拟语气不太顾及事实的存在，它表现出说话人的主观因素比较多。
所以说话人所讲的内容往往是与事实相反的；或是其实现的可能性微乎其微，甚至于没有实现的可能性。
当然，有时为了使说话的语气客气、缓和、委婉，也使用虚拟语气。
例如：I wish you were more careful .但愿你更细心一些。
If I had more money, Iwould buy a bigger apartment. 我要是有再多一点钱，我就买一套更大一些房子。