高中英语虚拟语气讲解(很完整的总结)
(完整版)英语虚拟语气语法归纳总结
（完整版）英语虚拟语气语法归纳总结英语中的虚拟语气是一种表示非事实或想象的语气，用来表达对现实情况的猜测、愿望、要求、建议、命令和反讽等。
虚拟语气主要通过动词的形式和句子的结构来表达。
一、虚拟语气的用法：1.表达建议、要求、命令、禁止：- 主语+动词原形+宾语（动词原形要用动词底形、如be）；- 主语+动词原形+that从句（用于表达建议、命令、禁止，动词原形用“should + 动词原形”或用情态动词）。
例句：- It is important that he be present at the meeting.（建议）- I suggest that he should go to the doctor.（建议）- They insisted that he leave the room immediately.（命令）2.表达愿望、请求、要求：-主语+动词过去式；- 主语+would/could/might + 动词原形；- 主语+动词过去式+宾语+should + 动词原形。
例句：- I wish I could fly.（愿望）- I would appreciate it if you could help me.（请求）3.表示虚拟条件：- If条件从句中的谓语动词用过去完成时，主句用would/should/might/could + have + 过去分词；- If条件从句中的谓语动词用过去时，主句用would/should/could + 动词原形。
例句：- If I had known his phone number, I would have called him.（虚拟条件）- If you had listened to me, we could have finished the project earlier.（虚拟条件）4.表达建议、要求、祝愿：- If only内部称述 + 主语 + 过去式。
高中英语2025届高考语法复习虚拟语气知识讲解
高考英语语法复习虚拟语气知识讲解一、基础知识（一）什么是虚拟语气谓语动词的作用不仅可以表示动作的时间、状态、假设（情感），也是一种语气（mood)的表现形式，表明说话的目的和意图。
（语气包含陈述语气、祈使语气、虚拟语气、疑问语气）虚拟语气用于表示假设、愿望、建议、命令等非真实或虚拟的情况，即与真实相反。
上学的时候老师经常举的一个例子，"If I were you"因为我不可能是你，这是一种不可能存在的事实，所以这是个虚拟语句。
总而言之英语中的虚拟语气可以分为两大体系：一是表示与事实相反的，或者是假象的情形，通常由if引导，叫做虚拟条件句；另一个体系是在名词从句中使用虚拟语气，表示建议，命令或者要求等语气，类似于上述美剧常用的台词。
（二）虚拟语气的用法这一部分我们主要用虚拟语气在条件句中的用法作为讲解与现在事实相反：If I had a map, I would lend it to you.如果我有地图我就借给你。
（但我没有）与将来事实相反：If I were to do the job, I would do it in a different way. 要是我来做这工作，我会是另一种做法。
（言外之意不是我做这个工作，用虚拟表达是我做这份工作的可能性很低）与过去事实相反：If anything had happened, he would have let us know.如果发生了什么情况，他早就通知我们了。
（所以没事发生）它们的共性都是表示与事实相反或者实现可能性不大3.特殊情况①在极少情况下，从句的谓语动词用原形，主句的谓语动词可用陈述语气（比较官方，正式，大气的说法，口语很少使用）If that be the official view, it cannot be accepted.如果这是官方的看法，这是不能接受的。
②if可以省略，但是语序要改为倒装Were I Tom I would refuse.如果我是汤姆我会拒绝。
高中英语知识点归纳虚拟语气的用法和情况
高中英语知识点归纳虚拟语气的用法和情况虚拟语气是英语中的一种特殊语气，用于表达与事实相反、与现实相反或与说话人的愿望、建议、命令等相反的假设情况。
在高中英语学习中，掌握虚拟语气的正确用法对于理解和准确表达意思至关重要。
本文将归纳总结高中英语中虚拟语气的用法和情况。
一、虚拟语气的基本情况1. 过去虚拟语气（Subjunctive Mood）过去虚拟语气用于表示与现在事实相反的虚拟状态或行为。
例如：If I were you, I would study harder.如果我是你，我会更努力学习。
2. 现在虚拟语气（Subjunctive Mood）现在虚拟语气用于表示与过去事实相反的虚拟状态或行为。
例如：I wish I lived in a big city.我希望我住在一个大城市。
3. 将来虚拟语气（Subjunctive Mood）将来虚拟语气用于表示与现在或将来事实相反的虚拟状态或行为。
例如：If it should rain tomorrow, we would cancel the picnic.如果明天下雨，我们会取消野餐。
二、虚拟语气的具体用法1. 虚拟条件语句虚拟条件语句用于表示与现实相反的条件情况。
例如：If she were here, she would help you.如果她在这里，她会帮助你。
2. 虚拟愿望语句虚拟愿望语句用于表达对于现在或将来不可能实现的愿望。
例如：I wish I had more free time.我希望我有更多的空闲时间。
3. 虚拟建议语句虚拟建议语句用于表示对于过去的事情提出建议。
例如：I wish you had listened to me earlier.我希望你早点听我的话。
4. 虚拟命令语句虚拟命令语句用于表示对于过去的事情给出命令或要求。
例如：I demanded that he apologize immediately.我要求他立即道歉。
高中英语虚拟语气的用法归纳
高中英语虚拟语气的用法归纳以下是高中英语虚拟语气的用法归纳：虚拟语气是一种特殊的动词形式，表示假设、愿望、建议、命令、猜测等非真实的情况。
一、基本用法1. 与现在事实相反条件从句：If + 主语 + 动词过去式（be 动词用 were）主句：主语 + would/should/could/might + 动词原形例句：If I were you, I would study harder. （如果我是你，我会更努力学习。
）Wouldn't life be boring if we had everything we wanted? （如果我们想要什么就有什么，生活岂不是很无聊？）2. 与过去事实相反条件从句：If + 主语 + had + 过去分词主句：主语 + would/should/could/might + have + 过去分词例句：If I had known your phone number, I would have called you. （如果我知道你的电话号码，我就给你打电话了。
）Couldn't you have done better if you had tried harder? （如果你再努力些，难道不能做得更好吗？）3. 与将来事实相反条件从句：① If + 主语 + 动词过去式② If + 主语 + were to + 动词原形③ If + 主语 + should + 动词原形主句：主语 + would/should/could/might + 动词原形例句：If it rained tomorrow, we would stay at home. （如果明天下雨，我们就待在家里。
）If she were to come here tomorrow, I would be very happy. （如果她明天来这儿，我会非常高兴。
）If he should fail in the exam, how disappointed his parents would be!（要是他考试不及格，他父母该多失望啊！）二、固定搭配1. wish 后的宾语从句与现在事实相反：从句用一般过去时与过去事实相反：从句用过去完成时与将来事实相反：从句用 would/could + 动词原形例句：I wish I were as tall as you. （我希望我和你一样高。
高中英语知识点归纳虚拟语气的用法总结
高中英语知识点归纳虚拟语气的用法总结高中英语知识点归纳——虚拟语气的用法总结虚拟语气是英语语法中的一个重要部分，它用于表达说话者的愿望、假设、建议或命令等不真实的情况。
在高中英语学习中，掌握虚拟语气的用法对于理解和运用英语语法非常重要。
本文将对虚拟语气的用法进行总结和归纳。
一、虚拟语气的用途虚拟语气用于表现非真实情况或不可能实现的愿望、条件、建议、怀疑、命令、警告等。
主要分为以下几种情况：1. 虚拟条件句：表示与现实相反的情况。
例如：If I were you, I would study harder.（如果我是你，我会更加努力学习。
）2. 虚拟愿望句：表示与现实相反的愿望。
例如：I wish I could go on a vacation.（我希望我能去度假。
）3. 虚拟建议句：表示对现实的建议。
例如：I suggest that he take a break.（我建议他休息一下。
）4. 虚拟命令句：表示对现实的命令或要求。
例如：The teacher requested that all students submit their homework on time.（老师要求所有学生按时提交作业。
）5. 虚拟警告句：表示对现实的警告或威胁。
例如：If you don't stop talking, I will call the police.（如果你不停止讲话，我会报警。
）二、虚拟语气的形式1. 虚拟语气在动词的形态上表现为过去式（一般过去时或过去完成时）。
例如：I suggested that he go to the library.（我建议他去图书馆。
）2. 虚拟语气在动词的形态上表现为"were"而不是"was"。
例如：If I were you, I would apologize.（如果我是你，我会道歉。
）3. 虚拟语气在情态动词的用法上表现为"should" + 动词原形。
(word完整版)高中英语语法-虚拟语气全总结,推荐文档
①错综时间条件句：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.②i f省略句在条件句中可以省略if,把were, had, should提到句首，变成倒装句式。
如:If I were at school again, I would study harder. T Were I at school aga in, I would study harder.如果我还有上学的机会，我会更加努力学习。
If you had come earlier, you would catch the bus.T Had you come earlier, you would catch the bus.如果你来得早点，你就能赶上公共汽车。
If it should rain tomorrow, we would not go climb ing.T Should it rain tomorrow, we would not go climbing. 如果明天下雨的话，我们就不能登山去了。
③用介词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) 如果你有100万元，你会做什么？We couldn 't have finished the work ahead of time without your help . （=if we hadn 'tgot your help）没有你的帮助，我们不可能提前完成这项工作。
高中英语知识点归纳虚拟语气的特殊情况和特殊用法
高中英语知识点归纳虚拟语气的特殊情况和特殊用法虚拟语气是英语中的一种语法现象，常常用于表达与事实相反、与现实不符或只存在于想象中的情况。
在高中英语学习中，掌握虚拟语气的特殊情况和特殊用法对于提高语言运用能力和理解能力很有帮助。
本文将对高中英语中虚拟语气的特殊情况和特殊用法进行归纳总结。
一、虚拟语气的特殊情况1. 条件句中表达与现实相反的情况（1）与过去事实相反如果主句是过去时态，从句多使用过去完成时态来表示与过去事实相反的情况。
e.g. If I had studied harder, I would have passed the exam.（如果我当时学得更努力，我就能通过考试了。
）（2）与现在事实相反如果条件句表示与现在事实相反的情况，常用虚拟语气的形式是：动词原形+were，即使主语是第一人称单数或复数。
e.g. If I were a bird, I would fly in the sky.（如果我是一只鸟，我就会在天空飞翔。
）（3）与将来事实相反（对未来的虚拟）如果条件句表示对将来事实的虚拟，常用虚拟语气的形式是：should/were to + 动词原形。
e.g. If it should/were to rain tomorrow, the picnic would be canceled.（如果明天下雨，野餐将会取消。
）2. 含蓄虚拟语气含蓄虚拟语气常用于对过去某一动作的猜测、推测或后悔等情况的表达。
常用动词有：wish, suggest, propose等。
e.g. I wish I knew the answer.（我希望我知道答案。
）3. 虚拟语气在名词从句中的使用在名词从句中，特殊情况下可以使用虚拟语气。
一般来说，主句的谓语动词应该是要求、建议、命令、感到奇怪、怀疑等含义，从句中使用虚拟语气。
e.g. It is necessary that you be here on time.（你按时到这儿很有必要。
虚拟语气英语知识点总结
虚拟语气英语知识点总结一、虚拟语气的概念。
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不是一个事实，而是一种假设、愿望、怀疑、猜测或建议等。
二、虚拟语气在条件句中的用法。
1. 与现在事实相反的虚拟条件句。
- 结构：从句（If + 主语+ 动词的过去式（be动词一般用were）），主句（主语+ would/should/could/might+动词原形）。
- 例如：If I were you, I would study harder.（如果我是你，我会更努力学习。
实际上我不是你）2. 与过去事实相反的虚拟条件句。
- 结构：从句（If+主语+had+过去分词），主句（主语+would/should/could/might + have+过去分词）。
- 例如：If he had taken my advice, he would have passed the exam.（如果他听了我的建议，他就会通过考试了。
实际上他没听建议，也没通过考试）3. 与将来事实相反的虚拟条件句。
- 结构：从句（If+主语+动词的过去式/should+动词原形/were to+动词原形），主句（主语+would/should/could/might+动词原形）。
- 例如：If it rained tomorrow, we would stay at home.（如果明天下雨，我们就会待在家里。
明天是否下雨还不确定，但这是一种假设情况）- 或者If he should come tomorrow, I would tell him the news.（如果他明天来，我就会告诉他这个消息）- 以及If I were to see her tomorrow, I would give her the book.（如果我明天见到她，我就会把书给她）三、虚拟语气在宾语从句中的用法。
1. wish后的宾语从句。
- 表示与现在事实相反的愿望，从句谓语动词用过去式（be动词用were）。
(完整版)高中英语语法虚拟语气讲解
高中英语语法讲解--虚拟语气1。
语气的定义和种类(1）语气的定义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A. 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。
We are not ready.Did it rain all day yesterday？What a fine day today!B. 祈使语气表使说话人的建议、请求、邀请、命令等。
Be careful.Don’t forget to clo se the window.Open the door， please。
C。
虚拟语气表使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.2。
虚拟语气一. 虚拟语气在条件句中的应用学习虚拟语气在条件句中的用法之前我们必须清楚条件句的种类：条件句有真实条件句与非真实条件句(或称虚拟条件句）两种。
真实条件句所表的假设是可能发生或实现的，句中的条件从句与结果主句都用陈述语气。
如：If it doesn’t rain tomorrow, I will go for a picnic。
假若明天不下雨,我就去野餐.Oil floats if you pour it on water. 你如把油倒在水里，油就浮起来。
虚拟条件句所表的假设则是不可能或不大可能发生或实现的，句中的条件从句与结果主句皆须用虚拟语）, 主句的谓语用should （would, might， could）+动词原形。
如：If it were not raining, we should go for a picnic.如果现在不下雨的话，我们就出去野餐了。
（事实是：天在下雨，我们不能出去野餐.表示愿望。
）If he came here, he might be able to help you. 如果他来这，他就能够帮助你了。
（事实是：他没来这，他不可能帮助你。
高中英语-虚拟语气精讲(超全整理篇)
• She made a request that the doctor(should)be sent for at once. • The teacher gives us a suggestion that we (should) practise reading English everyday.
• It’s suggested that the plan (should) be carried out at once . 主语从句
• The old woman’s demand is that her son (should) come to see her once a week. 表语从句
1) If he has time,he will go shopping tonight.
与事实相反！
2) If I had time,I would visit you.
与过去事实相反
虚拟条件句
had done
主句
should/would/might/co uld +have +done
If the staff had been more careful,
现在 过去
did / were had done 1. did / were 2. should do 3. were to do
将来
would/could/should/ might + V.(原)
与现在事实相反： 虚拟条件句
did be---were
主句
should/would/could/mig ht + do
二. 虚拟语气特殊句型与固定句式
(一) 两个常考虚拟语气句型
高中英语虚拟语气知识点总结精华(附答案)
高中英语虚拟语气知识点总结精华(名师总结必考语法知识点)第一节语气英语的动词一般可带有三种不同的语气：陈述语气，祈使语气和虚拟语气。
不同的语气用动词的不同形式（有的还借助句法形式）来表示。
第二节虚拟语气的概念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)。
它能实现下列交际功能：a.用来表达一个假设或纯粹的意愿（这种假设或意愿在多数情况下是与事实相反或不太可能实现的。
b. 经常用来缓和语气，使之更加委婉、礼貌、得体，使句子带有推测性和尝试性。
c. 表示烦恼、不耐烦等情绪。
d. 表示适度的责备或批评。
e. 表示美好的祝愿或祝福。
学习虚拟语气在条件句中的用法之前我们必须清楚条件句的种类：条件句有真实条件句与非真实条件句(或称虚拟条件句)两种。
真实条件句所表的假设是可能发生或实现的，句中的条件从句与结果主句都用陈述语气。
如：If it doesn’t rain tomorrow, I wi ll go for a picnic. 假若明天不下雨，我就去野餐。
Oil floats if you pour it on water. 你如把油倒在水里，油就浮起来。
虚拟条件句所表的假设则是不可能或不大可能发生或实现的，句中的条件从句与结果主句皆须用虚拟语气。
第三节虚拟语气在条件句中NOTE：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．２．在条件句中，可省略if，把were ,had, should 提到句首，变为倒装句式．（后面详细讲解）If you had come earlier, you would have met him.Had you come earlier, you would have met him.1. 与现在事实相反的虚拟条件句，条件从句的谓语用动词的过去式(be的过去式用were), 主句的谓语用should （would, might，could）+动词原形。
高中英语虚拟语气知识点总结
高中英语虚拟语气知识点总结高中英语虚拟语气知识点总结虚拟语气是英语语法中一种用于描述假设、假想或可能性的语气。
在高中英语中，虚拟语气是一个相当重要的语法知识点。
本文将总结高中英语虚拟语气知识点，帮助学生更好地掌握虚拟语气的使用规则和技巧。
一、虚拟语气的定义及用途虚拟语气指的是表示假想、虚构、愿望、建议等情况的语气。
它强调实现的可能性很小或很远，或者根本就不可能实现。
虚拟语气通常使用“if”引导条件从句或用于表达思想、态度。
虚拟语气的用途主要有以下几个方面：1. 表示假想或虚构情况例如：If I were you, I would not do that.（如果我是你，我不会那么做。
）2. 表示可能性很小或很远例如：If you asked him, he might help you.（如果你问他，他可能会帮你。
）3. 表示愿望、要求或建议例如：I wish I could speak fluent English.（我希望我能说流利的英语。
）二、虚拟语气的形式虚拟语气形式主要有以下几种：1. 虚拟语气的过去式：在虚拟语气中，一般用过去式来表示对现在或未来的虚拟。
例如：If I had more time, I would read more books.（如果我有更多时间，我就会多看书。
）2. 虚拟语气的过去完成式：过去完成式用于表示“如果过去已经发生了某些事情，结果会是怎样”。
例如：If I had studied harder in high school, I would have gone to a better college.（如果我在高中时学习更努力，我就能进入更好的大学。
）3. 虚拟语气的“would + 动词原形”形式：“would +动词原形”形式通常用于表示愿望、要求、建议或者可能性。
例如：I wish you would stop smoking.（我希望你戒烟。
）If you would like to come, you are welcome.（如果你愿意来，欢迎你。
高中英语虚拟语气(绝对全)
If my brother were here, everything would be all right. 要是我哥哥在这儿，一切都没问题虚拟语气表示所说的话只是一种主观愿望、假设或建议等。
虚拟语气的重点是：虚拟语气的特殊形式，即用来表示要求、建议、命令、提议、意愿等的主语从句、宾语从句、表语从句和同位语从句中的虚拟形式，含蓄条件句中的虚拟语气和表示愿望的虚拟形式等。
(一)虚拟语气的常见句型●与现在事实相反的虚拟语气与现在相反的虚拟语气的结构为：条件句动词为were或动词的过去式，主句为would/should/could/might+动词原形了。
If you had taken my advice，you wouldn't (couldn’t) have failed in the exam. 如果你按●与过去事实相反的虚拟语气与过去相反的虚拟语气的结构为：从句用had+过去分词，主句用would/should/could/might+have done照我的建议去做，你一定不会(不可能)考试不及格。
●与将来事实相反的虚拟语气If it were Sunday tomorrow, I should (would，could，might) go to see my grandmother. 与将来相反的虚拟语气的结构为：从句谓语动词为动词过去式或“should+动词原形”或“were to+动词原形”，主句为would/could/might +动词原形如果明天是星期天，我就(可能)去看望我奶奶。
If it were to snow this evening, they would not go out. 如果今晚下雪，他们将不出去了。
●省略if形式的虚拟语气有时条件从句中的动作和主句中的动作发生的时间不一致（表示错综时间的虚拟语气），省略连词if。
在书面语中，如果虚拟条件从句中有were，had 或should，可以把if省略，把这几个词放到主语之前，构成主谓倒装。
（完整版）英语虚拟语气语法归纳总结
虚拟语气:表示说的话不是事实，表示说的话不是事实，不可能发生或者说可能性很小的情况，不可能发生或者说可能性很小的情况，不可能发生或者说可能性很小的情况，表达一种愿望、表达一种愿望、表达一种愿望、建建议、假设。
议、假设。
一、条件状语从句中的用法一、条件状语从句中的用法从句 谓语形式谓语形式主句 谓语形式谓语形式现在现在were/ didwould/could/should (+not) + do 过去过去 had donewould/could/should/might (not)+ have done将来将来1. were/did2. should do3. were to dowould/could/should/might (not) + do简单记法：简单记法：if were/did, would doif had done, would have done if were to do/should do, would do举例：举例：If I were you, I would do nothing about it.If you had taken your teacher’s advice, you wouldn’t have made such a mistake. If it were to/ should rain tomorrow(表示降水率很低)，they wouldn’t go shopping.附注：附注：虚拟语气，条件状从倒装虚拟语气，条件状从倒装状语从句中，去掉if, 提前were/ had/ should 如：If I were you, I would give up. →Were I you, I would give upIf you had taken the advice, you would have…. →Had you taken the advice, you would have… If the world should come to an end,…… →Should the world come to an end……另外，without, but for, otherwise 构成的条件状语从句中，也有含蓄的虚拟语气构成的条件状语从句中，也有含蓄的虚拟语气 But for the populariza on of electricity, we would lead a whole different life today. (populariza on 普及，publicity 宣传) Without your help, I would have failed.We’ll go earlier, otherwise we wouldn’t get a seat. （表示可能性小）（表示可能性小）但其实，高中英语考试也常考：但其实，高中英语考试也常考：错综虚拟语气条件句错综虚拟语气条件句 即：即：假设条件状从发生的时间与所假设的谓语动词不一致，此时，主句和从句要根据各自的时间而定。
高中英语虚拟语气语法规则总结
高中英语虚拟语气语法规则总结在英语中，虚拟语气是对事实的虚构或非现实条件的表达。
以下是高中英语虚拟语气语法规则总结：条件句中的虚拟语气1. 与现在或将来相反的情况：* 如果我明天不忙碌，我会去听音乐会。
* 如果他更加努力，他就不会挂科了。
如果条件句的主语是“be”，则使用“were”代替“was”：* 如果我是你，我就不会放弃努力。
2. 与过去相反的情况：* 如果他早点儿来，他就不会错过演讲了。
* 如果我中彩票了，我就会买一辆房车。
如果条件句是虚拟的，主句需要使用“would/should/could/might”等情态动词：* 如果我有机会，我会去环游世界。
* 如果我知道这个消息，我可能会告诉你。
wish后面的虚拟语气wish后面的虚拟语气可以用来表达悔恨或希望不同的事情发生。
1. 对现在或将来不可能实现的愿望：* 我希望我会说流利的法语。
* 我真希望我有翅膀，就可以飞向天空了。
如果愿望的主语是“he/she/it”时，需要使用“were”代替“was”：* 我希望他现在在这儿。
→ I wish he were here now.2. 对过去不可能实现的愿望：* 我希望我去年参加了夏令营。
* 我真希望我能见到爷爷最后一面。
如果愿望的主语是“he/she/it”时，需要使用“had been”代替“was”或“were”：* 我希望他昨晚在这里。
→ I wish he had been here last night.推测1. 对现在的推测：* 他看上去好像生病了。
（他可能生病了。
）* 她肯定没有收到我的邮件。
推测主句中使用“can’t/couldn't/must/mi ght/may/would/will/shall/should等情态动词。
2. 对过去的推测：* 他一定错过了公交车。
（他错过公交车了。
）* 我想他可能已经走了。
推测主句中使用“can’t/couldn't/must/might/may/would/will/shall/should等情态动词。
高中英语语法-虚拟语气全总结
高中英语语法-虚拟语气全总结虚拟语气通常用于表达与现实相反的假设情况。
在非真实条件句中，虚拟语气的形式有两种：与现在事实相反的假设和与过去或将来事实相反的假设。
与现在事实相反的假设通常使用if+主语+助动词的过去式（如were。
did。
had）+动词原形，主句则使用XXX动词原形。
例如：If I had time。
I would XXX。
如果我有时间，我会参加会议。
与过去或将来事实相反的假设则有三种形式：①if+主语+动词过去式；②if+主语+wereto+动词原形；③if+主语+should+动词原形（注意不能是would）。
主句同样使用XXX动词原形。
例如：If you had taken my advice。
you would not have failed in the exam。
如果你听了我的建议，你就不会在考试中失败了。
在错综时间条件句中，动词形式要根据表示时间的状语从句作出相应的调整。
另外，在条件句中可以省略if，把were、had、should提到句首，变成倒装句式。
例如：Were I at school again。
I would study harder。
如果我还有上学的机会，我会更加努力研究。
Had you arrived earlier。
you would have caught the bus.If it rains tomorrow。
XXX climbing.What would you do with a n dollars?We couldn't have finished the work ahead of time without your help.Otherwise。
I would have taken part in the sports meeting.XXX me of your birthday。
or else I would have known nothing about it.A man who s drinking water would be dead in about seven days.I might have been XXX assistance。
高中英语知识点归纳虚拟语气的种类与用法
高中英语知识点归纳虚拟语气的种类与用法虚拟语气是英语中常见的一种语法现象，用于表示与事实相反、假设或建议等非真实情况。
在高中英语学习中，掌握虚拟语气的种类与用法对于提高语言表达能力至关重要。
本文将归纳总结高中英语中常见的虚拟语气种类及其用法。
一、虚拟语气的种类1. 与过去事实相反的虚拟该类虚拟语气用于表达对过去事实的否定、怀疑或假设，通常由“should/ought to + have + 过去分词”构成。
例如：He should have come to the party last night.（他本应该昨晚来参加派对的）I wish I had studied harder for the exam.（我希望我当时更努力地学习）2. 与现在事实相反的虚拟该类虚拟语气用于表达对现在事实的否定、怀疑或假设，通常由“动词原形＋宾语＋过去式”构成。
例如：If I were you, I would apologize.（如果我是你，我会道歉）She wishes she had more time for hobbies.（她希望她有更多的时间去爱好）3. 与将来事实相反的虚拟该类虚拟语气用于表达对将来事实的否定、怀疑或假设，通常由“should/shall/would + 动词原形”构成。
例如：If it should rain tomorrow, we would have to cancel the picnic.（如果明天下雨的话，我们将不得不取消野餐）I would help you if I had the time.（如果我有时间的话，我会帮助你的）4. 与现在事实相反的虚拟假设该类虚拟语气用于表达对现在事实的否定、怀疑或假设，通常由“were/shou ld + 动词原形”构成，用于表示与现在事实相反的情况。
例如：If I were you, I would quit that job.（如果我是你，我会辞职的）It is high time that he should start studying.（早该是他开始学习的时候了）二、虚拟语气的用法1. 表示假设和建议虚拟语气常用于表示假设和建议，帮助我们在语言表达中更加灵活地运用条件句和建议句。
高中英语虚拟语气语法总结
高中英语虚拟语气语法总结高中英语虚拟语气语法总结一、引言在高中英语语法中，虚拟语气是一个重要的知识点。
掌握虚拟语气的用法不仅可以提高英语表达的准确性和流畅性，还可以帮助理解许多英语文学作品的深层次含义。
本文将详细介绍高中英语虚拟语气的用法及其在句子中的应用。
二、语法总结1、虚拟语气的使用虚拟语气在英语中表示一种假设或非真实的条件，通常用于表达建议、愿望、假设或怀疑等。
根据不同的情境和表达需要，虚拟语气有多种形式，下面列举几种常用的虚拟语气表达方式：1、与现在事实相反：If I had time, I would go for a walk.2、与过去事实相反：If he had known the answer, he would have replied.3、与未来事实相反：If it were to rain tomorrow, we would stay at home.4、表达建议或请求：If it were you, I would choose the blue dress.2、语气助词的运用虚拟语气在句子中的运用常常与特定的语气助词结合。
以下是几种常见的语气助词及其功能：1、if条件从句：用于表达条件或假设，如上述例子所示。
2、Otherwise：用于表达相反的情况或假设，例如：Otherwise I would have told you the truth.3、Otherwise：用于表达相反的情况或假设，例如：Without your help,I would not have achieved this success.3、句子结构与语法规则虚拟语气的句子结构及其语法规则对于正确使用非常重要。
以下是几个需要注意的要点：1、主句和从句的时态关系：在含有虚拟语气的句子中，主句和从句的时态通常是不一致的，以表达假设或非真实的情况。
2、主谓结构：虚拟语气的主谓结构通常与陈述语气的结构不同，特别是当从句表达非真实的情况时，主谓结构需要进行相应的调整。
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Subjunctive Mood虚拟语气(1)If I had got there earlier, I would have met Mr. Li.If he hadn’t been warned，he would have taken that food.(2)If he were free, he would help us. If I had money, I would buy the car.If it were not for the expense, I would go abroad now.(3) If he should come/were to come/came here, we would hold the party.If it were to rain tomorrow, the meeting would be put off.1.倒装/省略当虚拟条件句中的谓语动词含有were, should, had时，if可省略，而将were, should, had 等词置于句首。
请改写以上六个例句中符合倒装/省略条件的句子！2.错综时间虚拟条件句。
主从句的动作若不是同时发生时，须区别对待。
①从句的动作与过去事实相反，而主句的动作与现在/将来的事实不符。
If they had informed us, we would not come here now.If you had listened to me, you wouldn’t be in such trouble now.If you hadn’t watched television so late, you wouldn’t be so sleepy now.If I had studied hard at school, I would be a student in the key university now and find a good job after four years.②从句的动作与过去发生的情况相反，而主句的动作与现在正在发生的情况相反。
If it had not been raining too much, the crops would be growing much better.3. 含蓄虚拟条件句。
指将条件从句隐藏在上下文中的一类条件句。
But for your help, we couldn’t have succeeded in the experiment. 如果没有你的帮助，我们的实验是不会成功的。
(But for your help=If it hadn’t been for your help...) Without your instruction, I wouldn’t have made such great progress.Without air, there would be no living things.I didn’t know he was a cheat, or (else) I wouldn’t have believed him. 我不知道他是个骗子，不然我也不会相信他了。
(or else=if I had known he was a cheat…) I’m really very busy; otherwise I would certainly go there with you. 我真的是太忙了，不然我就会同你一道去了。
(otherwise=if I were not so busy…)A few hours earlier, and you would have seen the famous writer. 要是你早来几个小时，你就见到这位著名的作家了。
(A few hours earlier=If you had come a few hours earlier…)Born in better times, he would have been a scholar. 如果出生在好时代，他早就成为学者了。
(Born in better times=If he had been born in better times…)I would write to her, but I don’t know her address. 我会给她写信的，就是不知道她的地址。
(but =i f I knew her address…)Given more attention, the flowers could have grown better.⊙Tom shouldn't/ought not to have told me your secret, but he meant no harm.She should/ought to have attended the meeting, but she injured her leg.You could have done it better, but you didn't try your best.You needn't have watered the flowers, for it's going to rain.(1)He behaved as if nothing had happened.It looks as if he hadn’t had a meal for a week.He talked about Rome as if he had been there before.They began to talk warmly as if they had known each other for long.(2)He looks as if he were an artist.It looks as if he were ten years younger today.She treats the boy as if he were her own son.When a pencil is partly in a glass of water, it looks as if it were broken.(3)It looks as if it might snow.She talks and talks as if she would never stop.It looks as if he could live for another century.He learns English so hard as if he would go to America.⊙如果as if/though引导的从句表示的情况是真实的或可能性很大，则用陈述句语气。
It sounds to me as if he needs some help.It smells as if something in the kitchen is burning.Dark clouds are gathering. It looks as if it is going to rain.三、wish之后的宾语从句，表示一种没有实现或根本不可能实现的愿望。
(1) I wish you hadn’t given him my telephone number.How I wish I had seen her off at the station，but I was too busy.I wish I had been there with them last week. I wish I hadn’t wasted so much time.(2)I wish I were a teacher. I wish it were spring here all the year round.(3)I wish he would come at once. I wish you could go with me tomorrow.四、If only(但愿/要是…就好了)：用法与含义均与I wish相似，以上各例中的I wish均可用If only代之，含义大致相同。
If only I had listened to my parents! If only she had had more courage!If only I remembered her address. If only it would stop raining!I’d rather you had seen the film yesterday.I’d rather you were here now.We’d rather you went there tomorrow.六、表示过去没有实现的愿望/计划/打算had hoped/wished/wanted/meant/intended/planned/expected to do…hoped to have done…had hoped that…would do…would rather have done…would like to have done…I had meant to finish my work last night, but I didn’t feel very well.We had thought that all of your family would come, but you didn't.I would rather have watched the movie with you yesterday.七、It is (high) time that + 主语+ 动词的过去式/ should + 动词原形It is time that I went to pick up my daughter at school. 我该去学校接我的女儿了。
It is high time that you should go to work. 你早该上班了。
八、名词性从句中的虚拟语气(1)宾语从句suggest/advise/propose/recommend/require/request/demand/order/command/instruct/insist /prefer/urge/arrange/ask(要求)/ desire... 之后的宾语从句用（should）do的形式表示虚拟语气.The doctor ordered that the patient (should) be sent to hospital without delay.特例：She insisted that she was right.The expression on her face suggested that she was very angry.The doctor insists that I (should) give up smoking.I suggest that we (should) go tomorrow.(2)主语从句①It is suggested that …(should) do…(suggested/advised/proposed/recommended/required/requested/demanded/ordered/commanded/ins tructed /insisted /preferred/urged/arranged/asked/desired)It is demanded that the project should be completed soon.②It is important/necessary/essential/vital/strange/surprising/natural that…(should) do…It is necessary that I should return it right now.我有必要马上把它还回去。