高中英语语法虚拟语气全总结排版
(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。
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)虚拟语气语法归纳
完整版)虚拟语气语法归纳.虚拟语气语法归纳虚拟语气的使用主要体现在三个方面：虚拟条件句、虚拟语气在某些从句中的运用，以及虚拟语气的一些特殊用法。
虚拟条件句虚拟条件句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：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，以及与将来事实相反的虚拟条件句。
具体情况请看下表：例句：1.表示与现在事实相反If I had enough money now。
I would lend it to you.If I were you。
I would tell him my true feelings.If I were a boy。
I would join the army.If she had time。
she would go with you.2.表示与过去事实相反If he had XXX your advice。
XXX't have made such a bad mistake.She would have come to enjoy the party if she hadn't been very busy.If he had XXX my advice。
he would have XXX.3.表示与将来事实相反I would go shopping with you if it were Sunday tomorrow.If he were given another chance to do it again。
he could XXX.If it were to rain tomorrow。
the football match would be postponed.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。
高中英语虚拟语气讲解(很完整的总结)
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。
英语《虚拟语气》语法知识总结归纳
英语《虚拟语气》语法知识总结归纳虚拟语气（Subjunctive mood）是英语中一种特殊的语气形式，用于表示说话人的假设、愿望、建议、要求、命令等非真实情况。
虚拟语气在句子中通常与动词的调整和语法结构上的变化相关。
以下是对虚拟语气的语法知识的总结归纳：1.条件句中的虚拟语气：1.1 条件句中表示对现在的假设：使用虚拟语气的一般公式是：if + 主语 + 过去式，主句使用would/could/should/might + 动词原形。
例如：- If I were you, I would go to the meeting.（如果我是你，我会去开会。
）注意，这里的"were"是一个特殊的虚拟语气形式，用于所有人称和数。
- If she had studied harder, she might have passed the exam.（如果她努力学习，她可能会通过考试。
）1.2 条件句中表示对过去的假设：使用虚拟语气的一般公式是：if + 主语 + 过去完成时，主句使用would/could/should/might + have + 过去分词。
例如：- If I had known it, I would have told you.（如果我知道了，我会告诉你的。
）- If she had arrived earlier, she might have caught the bus.（如果她早点到，她可能会赶上公共汽车。
）2.虚拟条件句中的特殊情况：2.1 在虚拟条件句中表示命令、建议时，主句中的动词可以使用动词原形（而不是would/could/should/might + 动词原形）。
例如：- If you have any questions, please let me know.（如果你有任何问题，请告诉我。
）- If I were you, I would take a break.（如果我是你，我会休息一下。
高中英语知识点归纳虚拟语气的用法及常见表达方式
高中英语知识点归纳虚拟语气的用法及常见表达方式虚拟语气在高中英语中是一个重要的语法知识点。
它在表达与现实相反的情况、假设、建议和愿望等方面起到了重要作用。
本文将详细介绍虚拟语气的用法及常见表达方式。
一、虚拟语气的基本形式在英语中，虚拟语气的基本形式包括虚拟条件句和虚拟语气在从句中的使用。
1. 虚拟条件句虚拟条件句通常包括三个主要部分：if引导的条件从句、主句中的would/should/could/might以及从句中的动词形式（常为过去式或were）。
例如：- If I had more money, I would travel around the world.（如果我有更多的钱，我会周游世界。
）2. 虚拟语气在从句中的使用虚拟语气在从句中的使用主要是通过动词的变化形式来表达。
常见的动词形式包括：过去式、were（用于所有人称）、should/ought to。
例如：- I wish I could speak fluent French.（我希望我能说一口流利的法语。
）二、虚拟语气的用法虚拟语气在英语中的使用具有一定的规则和情境。
下面将介绍几种常见的情况。
1. 表达与现实相反的情况- If I were you, I would quit that job immediately.（如果我是你，我会立刻辞职。
）该句中，使用了“were”而不是“was”，表示与当前事实相反的情况。
2. 表达假设和想象- If I had a time machine, I would go back to the past.（如果我有时光机器，我会回到过去。
）该句中，使用了“had”而不是“have”，表示假设的情况。
3. 表达建议和命令- The teacher suggested that we should study harder for the exam.（老师建议我们应该更加努力地学习考试。
）该句中，使用了“should”来表示建议。
高中英语知识点归纳虚拟语气的用法和种类
高中英语知识点归纳虚拟语气的用法和种类虚拟语气是英语语法中的一个重要部分，它用来表达与现实事实相反、与过去事实相反、与将来事实相反和与现在事实相反的情况。
掌握虚拟语气的用法和种类对于高中英语学习者来说至关重要。
本文将对虚拟语气的用法和种类进行归纳总结。
一、与现实事实相反的虚拟语气1. 虚拟条件句虚拟条件句用来表示与现实相反的情况。
它的一般形式是：if + 主语（过去式）、主语（were） + 动词的过去分词，主语 +would/should/might/could + 动词原形。
例如：- If I were a bird, I would fly in the sky.（如果我是一只鸟，我会在天空中飞翔。
）- If he had studied harder, he would have passed the exam.（如果他学得更努力，他就会通过考试。
）2. 虚拟表达愿望或建议的句子虚拟语气在表达愿望或建议时常常被使用，常见的形式是：主语 + 过去式 + 动词原形。
例如：- I wish I had more time to travel.（我希望有更多的时间旅行。
）- She suggested that he go to the library.（她建议他去图书馆。
）二、与过去事实相反的虚拟语气1. 过去完成时的虚拟语气过去完成时的虚拟语气表示过去某个时间已经发生但实际并未发生的情况，常用的形式是：had + 动词的过去分词。
例如：- If I had known you were coming, I would have prepared a meal.（如果我知道你要来了，我会准备一顿饭的。
）- He wished he had studied harder when he was in high school.（他希望当他还在高中时学习更努力。
）2. 过去简单时的虚拟语气过去简单时的虚拟语气表示过去某个时间未发生的情况，常用的形式是：动词的过去式。
完整虚拟语气用法表格归纳___
完整虚拟语气用法表格归纳___虚拟语气是英语语法中的一种复杂的语态，主要用于表示假设、愿望、建议、命令等情况。
在条件状语从句中，虚拟语气常常出现。
其中，反向虚拟条件句、错综时间条件句、含蓄条件句和省略if的条件句都是常见的形式。
反向虚拟条件句的结构为：If+主语+动词的过去式（be用were）+主语+would（should could might）+动词原型。
例如，如果我去国外，我会去美国。
这种情况下，主语的动作是虚拟的，表示假设的情况。
在错综时间条件句中，从句和主句中的动作发生的时间不一致，需要根据时间加以调整。
例如，如果你听从了我的建议，现在就会更好。
在这种情况下，从句的动作是虚拟的，表示假设的情况。
含蓄条件句则是指从句中没有使用if来表达虚拟条件，而是用介词短语（如otherwise、or、without、but for）来表示。
例如，如果没有我的帮助，她可能已经死了。
有时，在if引导的条件状语从句中，可以省略if，并将助动词提到主语之前。
例如，如果她年轻些，她会做这件事。
去掉if后，变为：Had she been younger。
she would have done it。
最常见的虚拟语气形式是主语+would（should could might）+动词原型，用于表示现在事实相反的情况。
例如，如果我有时间，我会参加会议。
在这种情况下，主语的动作是虚拟的，表示现在的事实相反。
1.表示与现在事实相反或对现在情况有怀疑时，谓语动词用过去式。
例如：He treats the boy as if he were his own son.2.表示与过去事实相反时，谓语动词用过去完成时。
例如：He spoke as if he had known about it.3.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。
例如：He acts as if he could win in the game.4.在as if/as though句中，如果有可能成为事实，用陈述语气。
（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。
完整版虚拟语气表格整理
虚假语气（ Subjunctive Mood）1.if （条件状从句）与在事相反与去事相反与未来事相反条件句条件从句中省略 if 采纳倒装序的状况委宛条件从句（省略 if ，用其余取代）从句（ if）主句形式例句would/could/If I were you,I should did/were should/might study English.+dowould/could/If you had taken my had done should/might advice,you wouldn’t+have done have failed in the exam.①did would/could/If it were to rain②should do should/might tomorrow, the meeting③were to do+do would be put off.主、从句时间不一致，动词形式要依据它所表示的时间来调整。
eg. ： If I had worked hard at school,I would be an engineer,too.“ were,had,should +主语”放句首（否定词not 不可以放前方）。
eg.: ①Were I in school again，I would work harder.②H ad you been here earlier,you would have seen him.③S hould there be a meeting tomorrow,I would come.注意： Were it not for the expense,I would go to Italy.(√）Weren’ t it for the expense,I would go to Italy.(×）常用词：①介词：with,without,but for(要不是，假如没有）；②连词： or,but；③副词：otherwise.eg.: ①Without air, there would be no living things.②But for your help,I couldn ’ t have finished it in advance.③I was ill that day.Otherwise,I would had taken part in the sports meeting.=If I hadn’ t been ill that day,I would had...2. wish （从句） /if only( 假如⋯⋯就好了）从句形式与在事相反did/were 与去事相反had done例句①I wish it were spring all the year round.②If only I were a bird!①Jack drove fast and was in an accident. Hesaid, “ I wish I had driven more carefully!” .②If only I had taken his advice.would/could/I wish you could go with us tomorrow.与未来事相反might do3.would rather +从句（表示宁愿某人在此刻或未来要做某事或过去做过某事）从句形式例句与在或未来事相反did/were I would rather you came tomorrow.与去事相反had done I ’ d rather you hadn ’ t been present.4. as if/as though,even if/though+ 从句从句谓语形式例句与此刻事实相反did/were He looked as if he were an artist.与过去事实相反had done He talked about the Great Wall as if he had been there before.与未来事实相反would/could/He opened his mouth as if he would say might do something.注意： 1. 在 as if/as though句中，假如有可能成为事实，用陈说语气。
英语虚拟语气语法总结
英语虚拟语气语法总结虚拟语气（Subjunctive Mood）是英语中一种特殊的语气形式，用来表达非真实情况、假设情况、愿望、建议等。
虚拟语气需要根据上下文来区分，采用特定的动词形式。
以下是对英语虚拟语气的语法总结：一、假设与虚拟条件：1. 表示假设情况时，使用"if"引导从句，主句使用虚拟语气。
- If I were you, I would study harder.（如果我是你，我会更努力学习。
）- If you had told me earlier, I could have helped you.（如果你早告诉我，我本可以帮你。
）2. 当表示与现实相反的情况时，主句使用过去时的虚拟语气，从句使用过去完成时的虚拟语气。
- He wishes he were taller.（他希望自己长得更高。
）- I wish I hadn't eaten so much.（我希望我没吃那么多。
）3. 在嵌入式虚拟语气中，主句使用过去时的虚拟语气，从句使用过去完成时的虚拟语气。
- She suggested that he have a rest.（她建议他休息一下。
）- It is important that he be on time.（他准时到达很重要。
）二、愿望与建议：1. 表示愿望时，使用"would like"或"hope"，后接宾语从句。
- I would like you to come to my party.（我希望你来参加我的派对。
）- She hopes that the weather will be good tomorrow.（她希望明天天气会好。
）2. 表示建议时，使用"should"或"would rather"等，后接宾语从句。
- I suggest that you see a doctor.（我建议你去看医生。
虚拟语气语法总结表格
虚拟语气语法总结表格
一、虚拟语气的基本概念
定义：用于表达假设、愿望或与现实相反的情况。
二、虚拟语气的类型
1. 现在虚拟语气
- 结构：动词原形（如：If I were you）
2. 过去虚拟语气
- 结构：had + 过去分词（如：If I had known）
3. 未来虚拟语气
- 结构：would + 动词原形（如：If I should win）
三、常用句型
1. 条件句
- 形式：If + 主语 + 虚拟动词，主句 + would/could/might + 动词原形2. 愿望句
- 形式：I wish + 主语 + 过去时/过去完成时
3. 建议句
- 形式：It is recommended that + 主语 + 动词原形
四、注意事项
1. 在条件句中，主句和从句的时态需要一致。
2. “were”用于所有人称，尤其在正式语境中。
总结人（签名）：____________________
总结日期：____________________。
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。
虚拟语气语法总结笔记
虚拟语气语法总结笔记
虚拟语气是一种语法结构，在表示一种假设、愿望、建议、命令或怀疑等情况下使用。
它与现实情况相反，表达一种非真实或假设的情况。
虚拟语气在英语中有多种形式和用法，下面是一些常见的虚拟语气结构和用法的总结：
1. 虚拟条件句：
- 类型1：如果+主语+动词的过去式，主语+would/could/might+动词的原形。
- 类型2：如果+主语+动词的过去完成式，主语
+would/could/might+动词的原形。
- 类型3：如果+主语+had+动词的过去分词，主语
+would/could/might+have+动词的过去分词。
2. 虚拟语气与愿望：
- 表示对现在的虚拟愿望：主语+were/was to+动词的原形。
- 表示对过去的虚拟愿望：主语+had+动词的过去分词。
3. 虚拟语气与建议：
- 表示建议：主语+should+动词的原形。
- 表示命令：主语+动词的原形。
- 表示要求：主语+动词的原形。
4. 虚拟语气与怀疑：
- 表示怀疑：主语+动词的过去式。
虚拟语气在英语中用于正式的书面语、虚拟条件、假设情况、愿望、建议和怀疑等方面。
需要注意的是，虚拟语气的用法在口语和书面语中可能有所不同。
使用虚拟语气时，需要注意动词的时态和语态的变化。
总而言之，掌握虚拟语气的使用可以帮助我们更好地表达假设、愿望、建议、命令或怀疑等情况，使我们的语言更加丰富和灵活。
完整虚拟语气用法表格归纳图21562
For fear that it may rain tomorrow, we should bring an umbrella.
“In case”引导的从句中即可用陈述句，也可以用虚拟语气
（should）+动词原型
例：1.The game will be put off in case it (should) snow.
If you had followed my advice, you would be better now.
If you had studied hard before, you would be a college student now.
含蓄条件句
有时虚拟条件句并没用if从句表示出来，而是用介词短语（otherwise，or，without，but for）上下文或其他方式来表示。
其动词形式用一般过去时或should+动词原型
It is high time that you went / should go to school.
注意：在this is the first time/ second time that….句型中，从句中谓语动词用陈述语气完成时态。
This is the second time that we have achieved such a great success.
She would have died without my help.。
条件从句中省略if采用倒装语序的情况
在if引导的表示虚拟的条件状语从句中，有时可以把虚拟条件中的连词if省去，而将had，should，were等助动词提到主语之前。
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虚拟语气在非真实条件句中
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.
②if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.
→Were I at school again, I would study harder.
如果我还有上学的机会，我会更加努力学习。
If you had come earlier, you would catch the bus.
→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 climbing.
→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’t got your help)
没有你的帮助，我们不可能提前完成这项工作。
Without your help, we couldn’t have finished the work ahead of time.
= But for your help, …
= If it had not been for your help, …
= Had it not been for you help, …
没有你的帮助，我们不可能提前完成这项工作。
④含蓄条件句
有时在虚拟语气中并不总是出现if引导的条件句，而是通过其他手段来代替条件句。
如：
I was ill that day. Otherwise, I would have taken part in the sports meeting. (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 raised their output quickly. (独立主格结构)
⑤even if, even though也可用于虚拟语气，其形式与if 从句在虚拟语气中的形式相同。
虚拟语气(2)——虚拟语气在名词从句中
1.在由suggest, demand, require, request, insist, order, command, propose等表示建议、请求、命令、愿望等动词或其同根词引出的名词从句中，名词从句虚拟句的谓语变化的形式只有一条规律——名词从句虚拟句无论其主句的谓语动词时何种形式，从句的谓语形式均为should+动词原形，其中
1. If my lawyer＿＿＿here last Saturday, he＿＿＿me from going.
been, would have prevented been, would prevent , would prevent , would have prevented 2. If it＿＿＿for the snow, we＿＿＿the mountain yesterday.
not, could have climbed not, could climb
not been, could have climbed not been, could climb
3. Without electricity(电) human life＿＿＿quite difficult today.
A. is
B. will be
C. would have been
D. would be
4. I didn’t see your sister at the meeting, if she＿＿＿, she would have met my brother.
A. has come
B. did come
C. came
D. had come
5. When the pencil is partly in a glass of water, it looks as if it＿＿＿.
A. breaks
B. has broken
C. were broken
D. had been broken
6. He hesitated(犹豫) for a moment before kicking(踢) the ball. Otherwise he＿＿＿a goal.
A. had scored
B. scored
C. would score
D. would have scored。