虚拟语气讲解_最通俗易懂的办法帮我讲解语法虚拟语气！ _生活经验

讲解一下虚拟语气，谢谢第一类：
虚拟语气在条件句中的用法：
条件句有真实条件句和虚拟条件句两种。真实条件句所表示的假设是有可能发生的，此时主句不用虚拟语气；而虚拟条件句则表示一种假想，与事实相反或不大可能会发生，此时用虚拟语气。如：
If I have time，I will go. 假若我有时间，我就去。（陈述语气） If I were you ， I would go. 假若我是你，我就去。（虚拟语气）
*规律总结：从句都往过去推一个时态，如：与现在相反的if从句就用过去时；与过去相反用过去完成时（即过去的过去）
注：特别说明
1、l would/should/could/might主句谓语中的should主要用于第一人称后；would表示结果还表示过去经常常常做某事，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。(would表结果)
If you tried again，you might succeed. 要是你再试一试，你可能会成功的。(might表可能)
If you tried again ， you could succeed. 要是你再试一试，你就能成功了。(could表能力)
2、错综时间虚拟条件句即条件从句与主句所指时间不一致，如从句指过去，而主句即指的是现在或将来，此时应根据具体的语境情况，结合上面提到的三种基本类型对时态作相应的调整：
If it had rained last night, the ground would be wet now. 要是昨晚下过雨的话，现在地面就会是湿的。
You would be much better now if you had taken my advice. 假若你当时听我的话，你现在就会好多了。
3、If虚拟条件句的否定（含蓄条件句）常考两个句型：If it weren’t for…和If it hadn’t been for…，其意为“若不是(有)” “要不是” 。如：
If it weren’t for water, no plant could grow. 要是没有水植物就无法生长。
If it hadn’t been for your assistance，we wouldn’t have succeeded.
=But for your assistance ，we wouldn’t have succeeded.
=Without your assistance ，we wouldn’t have succeeded.如果没有你的帮助，我们不会成功的。
4、If虚拟条件句的倒装形式，即把were, had, should置于句首。例：
Were I in school again (= If I were in school again), I would work harder.如果我能再上一次学，我会学习得更努力。
Had you asked me, I would have told you. (=If you had asked me,…)如果你问我，我会告诉你。
第二类：
使用虚拟语气的常见结构或从句：
1.*wish与hope接宾语从句的区别在于：hope表示一般可以实现的希望，宾语从句用陈述语气。wish表示很难或不大可能实现的希望,宾语从句用虚拟语气。试比较：
　?。?） We hope they will come. (We don’t know if they can come.)
　?。?） We wish they could come. (We know they are not coming.)我们希望他们能来。
2.if only 与 I wish一样，也用于表示与事实相反的愿望，其后所虚拟语气的时态与 wish后所接时态的情况相同：
If only she had had more courage! 她再勇敢一些就好了。
If only I had listened to my parents! 我要是当时听了父母的话就好了。
If only she would go with me! 她要是愿意和我一道去就好了!
*if only 通常独立使用，没有主句。
3.l would rather后句子用虚拟语气只分现在和过去
在would rather, would sooner, would just as soon后的that从句中, 句子谓语习惯上要用虚拟语气，表示"宁愿做什么"，具体用法为：
①　一般过去时表示现在或将来的愿望
I’d rather you went tomorrow (now). 我宁愿你明天(现在)去。
②　用过去完成时表过去的愿望
I’d rather you hadn’t said it. 我真希望你没有这样说过。
4.l as if (though)从句用虚拟语气
以as if (as though)引导的方式状语从句或表语从句，有时用虚拟语气,则与wish用法相同，例：
He acts as if he knew me. 他显得认识我似的。
They treat me as though I were a stranger. 他们待我如陌生人。
He talks as if he had been abroad. 他说起话来好像曾经出过国。
注：两点说明
(1) 从句所表示的内容若为事实或可能为事实，也可用陈述语气：
It looks as if we’ll be late. 我们似乎要迟到了。
(2) 注意 It isn’t as if…的翻译：
It isn’t as if he were poor. 他不像穷的样子(或他又不穷) 。
第三类：
从句中should+动词原形， should可省略
1. 在 lest ， for fear that( 以免) ,in case(以防)引导的目的状语从句中的虚拟语气
She walked quietly lest she (should)wake up her roommates. 她走得很轻以免吵醒她的室友。
2. 表应当做值得做一类动词后的宾语从句
建议advise, suggest, propose, recommend命令order, command
请求ask, demand, require, request指示direct
督促urge提议move, vote
希望desire坚持insist
打算intend安排arrange
例如：
I insisted that he (should)stay. 我坚持要他留下。
He urged that they go to Europe. 他督促他们到欧洲去。
He suggested that we shouldleave early. 他建议我们早点动身。
He ordered that it (should)be sent back. 他命令把它送回去。
I ask that he leave. 我要求他走开。
He requires that I (should)appear. 他要求我出场。
I move that we accept the proposal. 我提议通过这项提案。
He arranged that I should go abroad. 他安排我去国外。
She desires that he do it. 她希望他做此事。
The general directed that the prisoners should be set free. 将军指示释放那些俘虏。
*suggest表“暗示”insist表“坚持说”时不用虚拟语气
比较：
He insisted that Ihad read his letter. 他坚持说我看过他的信。
He insisted that I should read his letter. 他坚持要我看他的信。
He suggested that we (should) stay for dinner. 他建议我们留下吃饭。
I suggested that you had a secret understanding with him. 我觉得你与他心照不宣。
3. order,suggestion,idea,plan, proposal, advice, demand等名词后的表语从句或同位语从句
Our suggestion is that you（ should）be the first to go．我们的建议是你应该第一个去。
4.*advice, agreement, command, decision, decree, demand, determination, indication, insistence, order, preference, proposal, request, requirement, stipulation, suggestion, idea, plan, order
l “It is (was)+ 紧急重要-- 带感情色彩
上述demand/suggest等动词过去分词或
important,natural,strange ,necessary，surprised, appropriate等形容词后的主语从句
1. It is ordered that the army (should) get there by 4 a.m.
2. It is necessary that she (should) be sent there at once.
注：*It is necessary，important，strange，natural，advisable, anxious, compulsory, crucial, desirable, eager, essential, fitting, imperative(绝对必要), impossible, improper, obligatory, possible, preferable, probable, recommended, urgent, vital etc. ；it is a pity；It is requested/suggested/desired/proposed
第四类：
It’s time后的从句用虚拟语气
从句谓语通常用过去式表示 (早)该干某事了
*有时也用过去进行时或“should+动词原形”(较少见，且should不能省略)
ex. It’s time we went [were going, should go]. 我们该走了。
It’s time I was in bed. 我该上床睡了。(不用were)
It's time = It is (the very/high/right/about) time
第五类：
表示祝愿话语中也可以用虚拟语气。
May godbless you.愿上帝保佑你。
May you enjoy many years of health and happiness.祝您健康长寿美满幸福。
第六类;
在少数句型中，谓语用虚拟语气。
1）由that引导的句子（表示愿望或沮丧情绪）
That the rain would stop.但愿雨能停下来。
2）由would that引导的句子（表示但愿）
Would that he were gone.但愿他已走掉。
3）由to think引导的句子（表示没想到）
To think that I trusted him.没想到我竟然信了他。
wish和as if编辑
1.表示与现在事实相反的愿望
构成：主语 + wish (that) + 从句主语 + 动词过去式（be 一律用were）
例如：I wish I knew everything in the world.我希望我知道世界上所有的事。
I wish that the experiment were a success.我希望这个实验是成功的。
We wish we had wings.我们希望有翅膀。
2.表示与过去事实相反的愿望
构成：主语 + wish (that) + 从句主语 + would/could + have + 过去分词或had + 过去分词
例如：I wish that you hadcome yesterday.我希望你昨天来过。
I wish that I could have gone with you last night.我希望我昨晚能和你一起去。
I didn’t go to the party, but I do wish I had been there.我没有去参加晚会，但是我真的希望我去过那里。
3.表示将来不大可能实现的愿望
构成：主语 + wish (that) + 从句主语 + would/should/could/might + 原形动词
例如：I wish that he could try again.我希望他能再次尝试。
I wish that someday I should live on the moon.
We wish that they would come soon.
II. ASif 引出的虚拟。
As if….表好像……我们经常会利用一下句型来表达不能实现的虚拟状态：It is as if…… 。(就好象是……)
As if + 从句，主句。（好像…… Sb.+ do…）表达一种假设的条件。而 As if 之后的假设内容的语法结构和wish虚拟的结构一样。
L. 33 A Day to Remember 中原句，“As if this were not enough to reduce you to tears, your husband arrives.” 就利用了和现在事实相反的假设虚拟。北京新东方名师指出，要善于总结出一些学习语法的技巧，如利用对比，举例等方法进行学习。
注：Something is to happened，I'm to face it 。
注意事项：
使用虚拟条件句时要注意的几点：
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。如：
If you had followed my advice just now, you would be better now.
If you had studied hard before, you would be a college student now, and you would graduate from a college in four years’ time.
2．if 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。如：
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 catch the bus.
→ Had you come earlier, you would catch the bus.
If it should rain tomorrow, we would not go climbing.
→ Should it rain tomorrow, we would not go climbing.
注意：若省略的条件句中的谓语动词是否定形式时，不能用动词的缩略形式。如：我们可以说：Were it not for the expense, I would go abroad now. 但不能说：Weren't it for the expense, I would go abroad now.
3．用介词短语代替条件状语从句。常用的介词有with, without, but for 。如：
What would you do with a million dollars? ( = if you had a million dollars)
We couldn't have finished the work ahead of time without your help. ( = if we hadn't got your help)
But for the rain ( = If it hadn't been for the rain ), we would have finished the work.
4．含蓄条件句
有时为了表达的需要，在虚拟语气中并不总是出现if引导的条件句，而通过其他手段来代替条件句。
I was ill that day. Otherwise, I would have taken part in the sports meet. (副词)
He telephoned to inform me of your birthday, or I would have known nothing about it. (连词)
A man who stopped drinking water would be dead in about seven days. （定语从句）
I might have given you more help, but I was too busy. (连词)
Everything taken into consideration, they would have raiser their output quickly. (独立主格结构)
混合型与含蓄型虚拟语气
1 。混合型虚拟语气：
当虚拟条件从句与结果主语所表达的时间不一致时，被称为“混合条件句”，这种虚拟语气被称为“混合型虚拟语气”，动词的形式要根据它所表达的时间作相应调整。如：
If you had followedthe doctor's advice ,he would be all right now.(条件从句表达的时间是过去，因此用had+过去分词；主句表示的时间是现在，因此用would+动词原形)
2.含蓄型虚拟语气：
有时候，虚拟条件不是通过if引导的条件句来表示，而是暗含在上下文中
　?。?）.用but for 、without(如果没有）等来代替条件从句，如
Without electricity human life would be quite different=If there were no electricity ,human life would be quite different
(2) 用otherwise、or(or else),even though等表示与上文的情况相反，从而引出虚拟语气。如：
I lost your address.Otherwise,I would have visited you long before. =I lost your address.If I hadn't lost your address ,I would have visited you long before.
(3) 虚拟条件通过but暗示出来。如：
He would have given you more help,but he was too busy
他本来会给你更多的帮助，但是他太忙了。也就是说，如果那时他不忙，他可以给你更多的帮助。句中but he was too busy实际上暗示了一个虚拟条件——如果那时他不忙
He would lose weight,but he eats too much
他本来可以减肥的，但是他吃的太多了。也就是说，如果他吃得不多的话，他是可以减肥的。句中的but he eats too much实际上暗示了一个虚拟条件——如果他吃得不多。
虚拟语气知识讲解什么叫虚拟语气北京四中网校

虚拟语气具体用法的讲解1、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+do
eg：
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）
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 done
eg：
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。?。ㄊ率担喝ネ砹耍?
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。?。ㄊ率担好挥刑业幕埃?
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+do
②if+主语+did/were ②主语+should/would/could/might+do
③if+主语+should+do ③主语+should/would/could/might+do
eg：
1．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。（事实：来的可能性很?。?
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。
希望能帮到你
通俗语音和例子讲解一下虚拟语气吧、其实虚拟语气并不难，最常考察的也就是对现在，过去，将来的三种虚拟。“降级是关键” 。

文章插图
这个你要自己判断，一个是根据句子意思一个是根据句子的谓语动词时态来看。求虚拟语气讲解虚拟语气(Subjunctive Mood)这一语法项目是各类英语考试中心测试的重点之一。虚拟语气是一种特殊的动词形式，用来表示说话人所说的话并不是事实，而是一种假设、愿望、怀疑或推测。
Ⅰ用以表示虚拟条件的虚拟语气
⒈ 用if条件从句表示的虚拟条件，是虚拟条件最普通的方式。
① 虚拟现在时表示与现在事实相反的假设，其if 从句的谓语形式用动词的过去式(be 一般用were)，主句用would/ should/ could/ might +动词原形，例如：If I were in your position I would marry her.
② 虚拟过去时是表示与过去事实相反的假设，if 从句的谓语形式用过去完成时即had＋过去分词，主句用would / should / could / might + have +过去分词，例如：If it had not rained so hard yesterday we could have played tennis.
③ 大多数的虚拟条件句属于上面三种情况的一种，但并不排除存在条件和后果中，一个和现在情况相反，另一个和过去情况相反，例如：If you had followed what the doctor said, you would not have been so painful now.这个句子在高中出现频率颇高。
④ 但是，如果后果用了虚拟语气，而条件却用陈述语气，这种用法是错的。
⒉ 除了表示虚假条件外，if从句还可以表示对将来的推测，由于是将来还没有发生的，所以谈不上是真实的还是虚假的，只能说这个事情发生的可能性有多大。一般情况下，可以用陈述语气的if从句来表示对一个未来事实的推测，这个事实是完全可能发生的。If从句的谓语形式用一般过去式或用were to / should +动词原形，主句用would / should /could/ might +动词原形，例如：Jean doesn't want to work right away because she thinks that if she were to get a job she probably wouldn't be able to see her friends very often.（1996年1月四级第44题）
⒊ 有时可以把含有助动词、情态动词、be或have的虚拟条件句中的连词if 省去，而将had , should, were 等词提到主语之前，即用倒装结构,这时候，如果出现not等否定词，否定词需放在主语后面。这种结构在口语中很少使用，但频频出现在各类考试中出现，例如：If it had not rained so hard yesterday we could have played tennis.→Had it not rained so hard yesterday, we could have played tennis.
⒋ 大多数的虚拟条件通过上面所讲的两种方法表达，但在个别句子中也可以通过介词without和介词短语but for表达，副词otherwise等表达出来。例如：We didn't know his telephone number; otherwise we would have telephoned him.（1995年6月四级第46题）值得注意的是，包含but for的句子，谓语动词必定要用虚拟形式，但包含without等短语的句子，谓语动词未必一定要用虚拟语气。
⒌ 有时虚拟条件不是明确地表达出来，而在蕴含在用but引导的从句里，于是便出现了有谓语动词是虚拟语气的主句加上谓语动词是陈述语气的but从句构成的并列复合句，例如I would have hung you but the telephone was out of order.在这样的句子里，如果主句没有用虚拟语气，或者从句用了虚拟语气，都是错的。
Ⅱ用在宾语从句中的虚拟语气
⒈ 在表示愿望的动词wish后的宾语从句中，需用虚拟语气。（wish后的that 常省略），根据主句时态，从句谓语时态相应退后一位，例如：How she wished his family could go with him.
⒉ 在具有愿望、请求、建议、命令等主观意愿的动词(desire, demand, advice, insist, require, suggest, propose, order, recommend, decide …) 后的宾语从句中需用虚拟语气。谓语动词用(should) +动词原形。值得注意的是，如果宾语从句的动词是否定的，否定词not的位置应在动词之前，而不是动词之后。例如：The head nurse insisted that the patient not be move.另外，如suggest表达“暗示”，insist表示“坚持某种说法”时，后面的从句不用虚拟语气，例如：Her pale face suggests that she is ill.或He insisted that he did not kill the boy.
除此之外，上述动词也要求用虚拟式
① 在It is+上述动词的过去分词，其后所跟的主语从句中，如It is suggested that pupils wear school uniforms.
② 在上述动词相应的名词形式作主语+连系动词，其后的表语从句中，例如His suggestion was that classed be re-scheduled.
③ 在对上述动词相应的名词进行解释的同位语从句中，如：The workers raised the demand that their pay be increased to cope with the inflation.
⒊ would （had）rather , would sooner也用来表达主观愿望，它们之后的宾语从句中需用虚拟语气。谓语动词用过去式表示现在或将来，用过去完成式表示与过去事实相反，例如：I would rather he went right now.
Ⅲ其他形式的虚拟语气
⒈ it is +necessary等形容词后， that主语从句中虚拟形式使用，这类形容词包括necessary, important, essential, imperative, urgent, preferable, vital, advisable等，例如It is necessary that you listen to the teacher carefully.或者It is essential that you be able to pronounce every single word correctly.
⒉ 在It's (high/about) time 之后的定语从句中需用虚拟语气。谓语动词用过去式，例如It is high time that you went to school
⒊ 虚拟语气在as if / as though 引导的方式状语从句中的应用（谓语动词形式与wish后的宾语从句基本相同）表示与现在事实相反或对现在情况有怀疑，谓语动词用过去式。例如：He felt as if he alone were responsible for what had happened. 表示过去想象中的动作或情况，谓语动词用过去完成式。
⒋ 在lest 引导的状语从句中，谓语动词多用虚拟语气，(should )+ 动词原形。例如： The mad man was put in the soft-padded cell lest he injure himself.（1998年1月四级第38题）
⒌ 在if only 引起的感叹句中需用虚拟语气。谓语动词用过去式或过去完成式。例如： Look at the terrible situation I am in! if only I had followed your advice.
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 a bird, I could fly in the air.如果我是一只小鸟，我就能在空中飞行。
②I wish I could pass the examination.我希望我能通过考试。
③May you succeed!祝您成功！
虚拟语气在语法里算得上是个难点。让我们就从最简单的开始吧。
虚拟语气详解运用:
简单句中的虚拟语气
一、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。如：
⑴.Would you be kind enough to show me the way to the post office?请你告诉我去邮局的路好吗？
⑵.It would be better for you not to stay up too late.你最好别熬夜到很晚。
二、表祝愿。
1、常用“may+动词原形”表示祝愿，但愿，此时may须置于句首（多用于正式文体中）。
⑴、May good luck be yours!祝你好运！
⑵、May you be happy!祝你快乐！
⑶、May you do even better!祝你取得更大成就！
⑷、May you have a good time. 祝愿你玩的痛快。
⑸、May the friendship between us last long. 祝愿我们的友情天长地久。
⑹、May you be happy. (注意那个be ) 祝你幸福。
2、用动词原形。例如：
(1).Long live the people! 人民万岁！
(2).“God bless you,”said the priest.牧师说：“愿上帝保佑你！”
(3).Have a good journey! 祝愿你旅途愉快！
三、表示强烈愿望。（该类型虚拟语气谓语仅用动词原形，第三人称单数也不加“s”）
(1).God save me．
(2).Heaven help us．
四、表命令
1.命令虚拟语气只能用在第二人称(you) ，而且通常省略主语(也就是you) 。
2.句子尾通常加上感叹号：！
3.虚拟语气动词用一般现在时态(Simple Present)，如：work, be , go
4.否定形式的命令语气，可用助动词do ，加上not 。
(1). Work !
(2). Work harder !
(3). Be more alert ! (虚拟语气动词Be)
(4). You go out !
(5). Do not work so hard. (do not 表示否定的虚拟语气)
(6). Don't be afraid. (口语中常用don't 代替do not)
五、在一些习惯表达中。如：
(1).You’d better set off now.你最好现在就出发。
(2).I’d rather not tell you the secret.我情愿不告诉你这个秘密。
第三部分：名词性从句中的虚拟语气
第一节：宾语从句(Subordinate Clasue)中的虚拟语气
一、在动词wish后的宾语从句中的虚拟语气
在动词wish后的宾语从句中的虚拟语气，常省去宾语从句的引导词that 。
一）、对现在情况的虚拟（与现在的事实相反）：
从句用过去式或过去进行式(时间上是同时的) 。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：
1. I wish (that可省略,下同)I knew the answer to the question.(wish, 动词过去式knew)我希望知道这个答案。(事实上是不知道)
2. I wish it were spring in my hometown all the year around.(wish, were)但愿我的家乡四季如春。(事实上不可能)
3. I wish I were a bird.(wish, were)但愿我是只小鸟。(事实上不可能)
4. When she was at the party,she wished she were at home.(wished,过去虚拟动词were)(事实上并不在家)
5. Now that he is in China, he wishes he understood Chinese.(wishes,过去虚拟动词understood)
现在他在中国，他希望能懂得中文。(事实上并不懂)
6. When we begin the trip, they will wish they were with us.(will wish,过去虚拟动词were)(事实上并不和我们在一起)
二）、对过去情况的虚拟（和过去的事实相反）：
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would, could, might+现在完成时。例：
1. I wish (that可省略，下同)I hadn't wasted so much time.
我后悔不该浪费这么多时间。(事实上已浪费了)
2. He wishes he hadn't lost the chance.
他真希望没有失去机会。(其实已失去)
3. We wished he had spoken to us.
(wished，had + spoken)(事实上他并没同我们讲)
4. I wish you had called earlier.
(wish, had + called)(事实上已迟了)
5. They will wish they had listened to us sooner.
(will wish,had + listened)(事实上并不如此)
例题分析：I wish I ______ longer this morning, but I had to get up and come to class.
A. could have slept B. slept C. might have slept D. have slept
动词wish后面接从句，表达不可能实现或与事实相反的情况时，谓语动词要用虚拟语气，即用过去式（表示现在发生的动作）或过去完成式（表示过去发生的动作）。本题后半句谓语动词have用的是过去时had
to get up and come, 所以前面要用过去完成时表示过去发生的动作。所以, 选项A)could have slept是答案
三）、对将来情况的虚拟(表示将来的主观愿望)：
从句动词"would/should/could/might + 动词原形"(时间上较后)(请注意：主句和从句的主语不相同) 。用wish表示对将来事情的愿望。例：
1. I wish it would stop raining.(虚拟动词would+动词原形stop)
我希望雨能停止。(事实上雨还在下着呢)
2. I wish you would be quiet.(would + be)
我希望你安静一些。(事实上那家伙还在吵着呢)
3. You wished she would arrive the next day.(would + arrive)
你希望她第二天会到。(事实上她还没到)
4. I wish she would change her mind.(would + change)
我希望她会改变主意。(呵呵，女孩子可没那么容易就改变主意喔)
5. He will wish we would join him the following week.(would + join)
(只是希望我们和他在一起，实际上还没在一起)
四）、注意：
1.如果将wish改为过去式wished, 其后that 从句中的动词形式不变。例如：
I wished I hadn't spent so much money.
我要是那时没有花掉那么多钱就好了。
2. 如果that 从句中用would , 一般表示对现状不满或希望未来有所改变或请求
I wish he would answer my letter.
I wish prices would come down.
I wish you would help me.
I wish you would stop asking silly questions.
二、在表示建议、命令、要求、忠告等动词的后面的宾语从句中的虚拟语气
由于这些动词本身隐含说话者的主观意见，认为某事应该或不应该怎样，这些词语后面的“that”从句应用虚拟语气，且均以“should+动词原形”表示这种语气，但事实上“should”常被省略，故此从句中谓语动词用原形，常用的此类动词有：
表示“要求”的：ask, desire, request, demand, require, beg
表示“提议、劝告、建议”的：move, prpose, suggest, recommend, advise, vote
表示“决定、命令”的：decide, order
表示“主张”的：maintain, urge
表示“同意、坚持”的：consent, insist
例如：
1.The doctor suggested that he (should) try to lose his weight.
2.He insisted that we (should ) tell him the news.
3.When I suggested that he try shaving cream, he said, “The razor and water do the job. ”(当我建议他用刮胡膏时，他说“剃刀和水就行了” 。)
4.He pursued various theories for several days until I suggested we take the toy apart to see how it did work. (他费了几天功夫寻找理论根据，直到我建议拆开看看它是如何转动的。)
5.One can suggest that students should spend two or three years in an English
最通俗易懂的办法帮我讲解语法虚拟语气！【虚拟语气讲解_最通俗易懂的办法帮我讲解语法虚拟语气！】所有的时态都往后退一步。和现在相反的用过去式，和过去相反的用过去完成时。其实虚拟语气也不太难，多做些高考真题，题目其实都差不多的。
扩展
问题是我吧语法也忘记了。
过去式我知道
过去完成时 - -！忘记的差不多了， have done？
还有和将来相反吗？

补充
过去完成时即过去的过去，形式为had done，句子中一般会出现by+一段时间。做题的时候可以画一条时间轴，将题目中出现的时间标注上去，应该就比较清楚了。
have done在虚拟语气中是表示与过去事实相反，出现在主句中。比如说这个句子：
　If he had taken your advice ，he wouldn't have made such a bad mistake
和将来相反的有三种表示方法：1、过去式 2、should+动词原形 3、 were to do
虚拟语气最重要的是记住三个基本句式，书上肯定会有。这个一定要记?。?br />也不要太紧张，现在也许觉得比较困难。高考的时候，应该就出现在选择里面。到时候高三的时候天天练题目，没有问题的！
我感觉英语重要的还是词汇。不仅阅读、完型需要，感觉高考中考查动词词组和词语辨析的题目也多起来了（不知道你是哪里的，江苏是这样），单纯的语法题反而没有那么多了。
希望对你有些帮助吧！