if条件句中的虚拟语气
if条件状语从句的虚拟语气
if条件状语从句的虚拟语气推荐文章if条件状语从句的虚拟语气题目热度：关于救火的表扬信格式范文热度：专题辅导：高二英语虚拟语气用法指导及主谓一致练习题热度：高二英语学习：怎样提高英语成绩及虚拟语气讲解热度：高二英语语法虚拟语气专题练习及说明文写作模板热度：if 条件状语从句是英语中的一个难点，那么if 条件状语从句的虚拟语气又是怎么回事呢?下面是店铺为你整理的if 条件状语从句的相关资料，希望大家喜欢!if 条件状语从句的虚拟语气一.基本结构1. 与现在事实相反If + 主语+were/ did/ were doing, 主语+should/ would/ could/ might +动词原形强调：必须把上面的结构套用对!2. 与过去事实相反If + 主语+ had done, 主语 +should/would/ might/ could + have done.强调：必须把上面的结构套用对!3. 与将来事实相反If + 主语 + were/ did/ were to do/ should do, 主语+ should/ would/ could/ might do强调：必须把上面的结构套用对!第三个结构中，从句中的were to do可能性最小，should do的可能性稍大。
二.变化1. 错综时间条件句所谓错综，就是结构和我们的基本结构不一致，出现了从句用与过去事实相反，而主句则为与现在事实相反或与将来事实相反。
那么，我们就分别用各自的结构即可。
If + 主语+had done, 主语 +would/should/ could/ might do再将强调结构必须正确。
我们对比下面两个句子：If you had studied harder then, yoursituation would have been better.If you had studied harder then, yoursituation would be better now.注意：在错综时间条件句中，务必有明确的表示错综的时间状语，或者通过上下文能看出是时间的不同，否则，就必须按前面的基本结构套用。
虚拟语气在条件状语从句中的用法(if条件句)
在写作中的应用
创作文学作品中
在创作小说、诗歌等文学作品时， 虚拟语气可以用来表达虚构的情 节和角色情感，增强作品的情感
色彩和艺术效果。
撰写学术论文
在撰写学术论文时，使用虚拟语 气可以表达假设的情景或条件， 例如在讨论不同政策或方案的影
响时。
写邮件和信件
在写邮件或信件时，使用虚拟语 气可以表达礼貌和尊重，例如在
在撰写商务广告和宣传材料时，使用虚拟语气可以增强语 言的感染力和说服力，例如“假如您正在寻找更好的产品 ，那么您来对了地方。”
感谢您的观看
THANKS
if条件句中的虚拟语气与时间状语从句的时态不一致
总结词
当if条件句中的虚拟语气与时间状语从句的时态不一致 时，通常是为了强调或表达与时间状语从句相反的情 况。
详细描述
在英语语法中，当if条件句中的虚拟语气与时间状语从 句的时态不一致时，通常是为了强调或表达与时间状语 从句相反的情况。这种用法能够使句子更加生动和富有 表现力，突出说话者对某个特定时间点的态度或情感。 例如，在句子"If I had known the answer yesterday, I would have told you."中，虚拟语气"had known" 与时间状语从句的时态"yesterday"不一致，强调了说 话者对过去的遗憾或后悔。
虚拟语气在条件状语从 句中的用法(if条件句)
目录
CONTENTS
• 虚拟语气在条件状语从句中的基本结构 • 虚拟语气在条件状语从句中的用法 • 虚拟语气在条件状语从句中的特殊情况 • 虚拟语气在条件状语从句中的实际应用
01 虚拟语气在条件状语从句 中的基本结构
if虚拟语气的用法归纳
if虚拟语气的用法归纳IF虚拟语气是英语中的一种重要语法现象，主要用于表示与现实相反的假设、愿望、建议等。
它分为两种形式：if条件句和if非条件句。
以下是对IF虚拟语气用法的详细介绍：一、if条件句1. 表示与现在事实相反的假设：If + 主语+ 过去时态，主语+ would/could/might/should + 动词原形。
例如：If I were you, I would go to the party.（如果我处在你的位置，我会去参加派对。
）2. 表示与过去事实相反的假设：If + 主语+ had done，主语+ would/could/might/should + have done。
例如：If he had come to the meeting, he would have known the plan.（如果他参加了会议，他就会知道这个计划。
）二、if非条件句1. 表示建议、劝告：主语+ should/would/might/ought to + 动词原形。
例如：You should go to the party.（你应该去参加派对。
）2. 表示愿望：主语+ could/would/might + 动词原形。
例如：I wish I were a bird.（我希望我是一只鸟。
）3. 表示假设：If + 主语+ 动词过去式，主语+ would/could/might + 动词原形。
例如：If I had time, I would go to the park.（如果我有时间，我会去公园。
）三、if虚拟语气的特殊结构1. 省略if，将were、had、should等词置于主语之前：主语+ were/had/should + 动词原形。
例如：She were here, she would meet him.（如果她在这里，她会见到他。
）2. 使用倒装结构：were/had/should + 主语+ 动词原形。
if条件句中虚拟语气的用法
if条件句中虚拟语气的用法1、If条件句中虚拟语气的用法,主讲人：高争利,虚拟语气在虚拟条件句中的运用1.虚拟语气如今时2.虚拟语气过去时3.虚拟语气将来时,1.虚拟语气如今时用以表示与如今事实相反的假设或如今实现可能性不大的状况,1)Example:-Mom,ifIwereyou,Iwouldn’taskmysontostudyatwee kends.-Unfortunately,youarenot.,2〕structure:,条件从句主句动词过去式(be多用were)would/could/should/might+动词原形3〕eg:IfIwereabird,Iwouldflytoyou.IfIwonthelottery,Iwo2、uldtravelaroundtheworld.,虚拟语气如今时练习题,假如我有足够的钱，我就会出国。
IfIhadenoughmoney,Iwouldgoabroad.假如我处于你的位置，我就接受他们的提议。
IfIwereinyourposition,Iwouldaccepttheiroffer.,2.虚拟语气过去时,与过去事实完全相反的假设1〕Example:IfIhadn’tcometoworkinXinjiang,Iwouldn’thavemetyou ,andIwouldneverhaveknownyou.ButIdid.,2)structure:,条件从句主句had+过去分词would/cou3、ld/should/might+have+过去分词,3)Eg:Ifwehadstartedearlier,weshouldnothavemissedthetrain.假如我们早点出发，我们本不该错过这趟火车。
,Ifshehadn’tbeenill,shemighthaveco me.假如她没生病，她就会来。
,虚拟语气过去时练习题,假如我知道你的地址，我早就给你写信了.IfIhadknownyouraddress,Iwouldhavewrittentoyou.假如你听从我的建议,你就不会考试不及格了.Ifyouhadtakenmyadvice,youwouldnthavefailedintheexamin 4、ation.,3.虚拟语气将来时,表示与将来情形相反的假设或极少有可能实现的状况Structure：条件从句动词过去式/should+动词原形/wereto+动词原形主句Would/could/should/might+动词原形,Eg:Ifyouweretogetafullmarknexttime,shouldgetIwouldholdap artyforyou.,got,虚拟语气将来时练习题,假如太阳从西边升起，我就听你的。
高中英语if条件虚拟语气
英语动词有三种语气：陈述语气、祈使语气、虚拟语气（用来表示说的话不是事实，或者是不太可能发生的情况，而是一种愿望，建议，假设的语气叫虚拟语气。
）虚拟语气的考点：1•条件句中的虚拟语气的用法；2.条件句中虚拟语气的倒装；3•名词性从句中虚拟语气的用法；4•几种特殊结构中虚拟语气的用法；5.虚拟语气时态的判定。
一、If引导的虚拟条件句区别：If it rains tomorrow，the crops will be saved.陈述语气If it rained tomorrow，the crops would be saved.虚拟语气真实条件状语从句与非真实条件状语从句真：eg .If he doesn' 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）二、虚拟语气在条件从句中：【例句】1.If you had come a few minutes earlier，you would have met him.要是你早来几分钟的话，你就能见到他了。
（与过去事实相反）2.lf it were sunny tomorrow, i would come to see you.明天要是天气好的话，我来看你。
（与将来事实可能相反）3.lf i were you, i would go at once.假如我是你的话，我会马上走。
（与现在事实相反，事实上我不可能是你）主从句的谓语形式（一）与现在事实相反的虚拟条件句表示与现在事实相反的情况，例 1.lf I were you, I would take an umbrella.如果我是你，我会带把伞。
if 条件句虚拟语气
if 条件句虚拟语气虚拟语气是英语语法中的一种特殊语气，用来表示与事实相反或假设的情况。
在if条件句中，虚拟语气通常用来表达非真实的、假设的情况。
本文将列举10个以if条件句虚拟语气为主题的例子，并对其进行详细解释。
1. If I were rich, I would travel around the world.如果我很富有，我会环游世界。
解释：这个句子中的虚拟语气表达了对现实情况的假设，暗示说我并不富有，因此无法实现环游世界的愿望。
2. If I had studied harder, I would have passed the exam.如果我学得更努力，我就能通过考试了。
解释：这个句子中的虚拟语气表示对过去情况的假设，暗示说我没有努力学习，所以没有通过考试。
3. If I had a time machine, I would go back to the past and change some things.如果我有一台时间机器，我会回到过去改变一些事情。
解释：这个句子中的虚拟语气表达了对现实情况的假设，暗示说我没有时间机器，因此无法改变过去的事情。
4. If I were the president, I would make education free for all.如果我是总统，我会让教育对所有人免费。
解释：这个句子中的虚拟语气表达了对现实情况的假设，暗示说我并不是总统，所以无法实现让教育免费的目标。
5. If it didn't rain tomorrow, we could go hiking.如果明天不下雨，我们可以去远足。
解释：这个句子中的虚拟语气表达了对未来情况的假设，暗示说明天可能会下雨，所以无法去远足。
6. If I had known you were coming, I would have prepared a meal for you.如果我知道你要来，我会为你准备一顿饭。
虚拟语气在if条件状语从句中的用法
错综条件句
虚拟条件句中,结果主句和条件从句的谓语动 作若不是同时发生时,虚拟语气的形式应作相 应的调整.这种条件句叫错综条件句.
①从句的动作与过去事实相反,而主句的动 作与现在或现在正在发生的事实不符.〔假如 过去... 现在就会... 过去和现在都是与实 际不符的 eg：
表示对将来情况的虚拟
▪ 从句：①if+主语+were to do
▪
②if+主语+should+do
▪
③if+主语+过去式〔be动词用were
▪ 主句：主语+should/would/might/could+动词原形
▪ 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：来的可能性很小,不可能
▪ 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：下雪可能性很小,不可 能
▪ 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.〔事实：来的可 能性很小,不可能
表示对过去情况的虚拟
▪ 从句：If+主语+过去完成时 ▪ 主句：主语+should/would/might/could+have done ▪ 1． If I had got there earlier,I should/would have met her. 如果我早
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。
if引导的条件句中的虚拟语气
if引导的条件句中的虚拟语气虚拟语气表示一种不能实现的假设。
该语法主要用于if条件状语从句。
一、if引导的条件状语从句的分类及虚拟条件句的判断1、可以把条件句分为两类：1).真实条件句（Sentences of Real Condition）：凡是假设的情况发生性可能很大，就是真实条件句。
例如：⑴、If I have tim e , I will help you with this work.如果我有时间会帮助你做此工作的。
(2)、If time permits, we'll go fishing together.(如果有时间的话，我们就一起去钓鱼。
）2).虚拟条件句（Sentences of Unreal Condition）：当假设是不大可能实现时，就是虚拟条件句。
例如：⑴、If I were you , I w ould have attended the meeting. 如果我是你的话，就去参加会议了。
⑵、If he had come here yesterday, he would have seen his old friend.假如他昨天来这儿的话，就会看见他的老朋友。
⑴、If it had rained yesterday, we would have stayed at home.（如果昨天下雨的话，我们就会留在家里。
）2、.if条件状语从句中虚拟语气的判断判断是真实条件句还是非真实条件句。
只有在非真实条件句中才使用虚拟语气。
通过句子意思，看假设的条件是否能够实现，能够实现是真实条件句，不能使用虚拟语气；假设的条件不能实现则是非真实条件句，要用虚拟语气。
判断这个假设是与哪个事实相反。
通常有三种情况：①与过去事实相反。
②与现在事实相反。
③与将来事实可能相反。
3、“后退一步法”后退一步法是指在准确地判断了该句与哪一事实相反后，按虚拟语气的后退一步法处理从句谓语动词的时态。
虚拟语气if的用法
虚拟语气if的用法虚拟语气是英语中一个重要的语法现象，通过使用if引导的虚拟条件句来表达假设、愿望、建议或者表示与现实相反的情况。
以下是虚拟语气if的几种常见用法：1. 表达假设和假设的结果：使用虚拟语气if来表达假设和假设的结果，通常形如“If + 主语+ 动词过去式，主语 + would/could/might/could have + 动词过去分词”。
例句1: If I were rich, I would travel around the world.（假如我很有钱，我会环游世界。
）例句2: If it had rained, we could have stayed at home.（如果下雨的话，我们本来可以待在家里。
）2. 表达愿望：使用虚拟语气if来表达愿望，通常形如“If only + 主语 + 动词过去式”。
例句：If only I could speak fluent French.（要是我能流利地说法语就好了。
）3. 表达建议：使用虚拟语气if来表达建议，通常形如“If I were you, I would + 动词原形”。
例句：If I were you, I would take a break and relax.（如果我是你，我会休息放松一下。
）4. 表达对现在和过去不可能实现的条件：使用虚拟语气if来表达对现在和过去不可能实现的条件，通常形如“If + 主语 + had/could + 动词原形”。
例句1: If I had wings, I could fly in the sky.（如果我有翅膀，我就能在天空中飞翔。
）例句2: If I could play the piano, I would perform at the concert.（如果我会弹钢琴，我将会在音乐会上表演。
）总结起来，虚拟语气if的用法包括表达假设和假设的结果、愿望、建议以及对现在和过去不可能实现的条件。
if条件句虚拟语气
有关英语if条件句虚拟语气用法
if的虚拟语气用法：
1、现在时:当if引导的虚拟语气表示与现在事实相反时，主句谓语用could、would、shoul d或mi ght加动词原形，条件从句中的谓语用过去式。
2、过去时:当if引导的虚拟语气表示与过去事实相反时，主句谓语用could、would、shoul d或mi ght加have再加动词原形，
3、将来时:当if引导的虚拟语气表示与将来事实相反时，主句谓语用could、would、shoul d或mi ght加动词原形，条件从句中的谓语用过去式。
虚拟语气中，表条件的状语从句的if可以省略，但主语必须与动词易位（也就是倒装）：
If it were not for his illness, he could do better.
=Were it not for his illness, he could do better.
如果不是因为他生病，他可以做得更好。
If he had money, he would buy that villa.
= Had he money, he would buy that villa.
对将来情况的虚拟：
主句：主语＋would/should/might/could＋动词原形从句：should＋动词原形/were to＋动词原形。
对现在情况的虚拟：
主句：主语＋would/should/might/could＋动词原形从句：动词过去式
对过去情况的虚拟：
主句：主语＋would/should/might/could have＋动词过去分词从句：had＋动词过去分词。
if条件句中虚拟语气的用法
if虚拟条件句 与现在 事实相 反的假 设 与过去 事实相 反的假 设 与将来 事实相 反的假 设
主句
If+主语+ 动词的过去式 （be动词一般用were) 即：If+一般过去时态 （be动词一般用were)
主语+would ( should / might / could )＋动词 原形
If+主语+had +动词的过 主语 + would ( should / might 去分词 / could )＋have 即：If+过去完成时态 done
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 主语+would ( should / might / could )＋动词 原形
注意以下问题：
• 1. 错综时间虚拟条件句 • 2. (if省略) 倒装虚拟现方式做保护处理对用户上传分享的文档内容本身不做任何修改或编辑并不能对任何下载内容负责
If条件句中虚拟语气的用法
a. if真实条件句 表示条件是真的或有可 能实现的, 采用陈述语气。
b. if虚拟条件句 表示条件是虚拟的或几 乎无法实现的, 采用虚拟语气。
与现 在事 实相 反的 假设
If+主语+ 动词的过 去式 （be动词一般用 were) 即：If+一般过去时 态 （be动词一般用were)
主语+would ( should / might / could ) ＋动词原形
与现在事实相反
If I were the schoolmaster ,
英语语法虚拟语气用法(if)
虚拟语气虚拟语气用来表达说话人的愿望、请求、建议、假想等不能实现的情况。
1.虚拟语气用于条件句（1）if条件句与现在相反：If I had had a car, I would drive it to Beijing by myself.与将来相反：If I were to do it, I should do it at once.（2）省略if的条件句如果虚拟条件句中含有were\had\should时，if可以省略，这时从句要用倒装语序，把were\had\should移到主语前面。
如Had I known it, I wouldn’t had made such a silly mistake.注意：如果if引导的条件句谓语动词是否定形式，省略if,否定词not 不提前如：Were it not for rain, I would go shopping now.（3）含蓄条件句有是虚拟条件句不一定要用if条件句的形式表达，而是借助介词、介词短语等，常见形式有：without\thanks to\but for\or\otherwise等。
如：But for your help,I could not get home.2.虚拟语气用于名词性从句（1）主语从句It is important\require...+主语从句在这里表示建议，必要，命令等意思的结构中，要用should +动词原形，should可以省略。
这类形容词和分词有：advised\advisable\better\desired\demand\imperative\important\natural\neces sary\ordered\proposed\possible\required\recommended\suggested\urgent\str ange等。
如： It is important (that)we (should) finish the work.（2）宾语从句A: suggest,require,order...+宾语从句在一些表示建议、愿望、要求、请求、劝告、意志、欲望、命令、安排、决定等动词引导的宾语从句中，要用虚拟语气。
if的条件句的三种用法
千里之行，始于足下。
if的条件句的三种用法条件句在英语中是非常常见的一种句型，用于表达假设、可能性和条件关系。
if（如果）是条件句的引导词，它可以有不同的用法和用途。
下面将详细介绍if条件句的三种常见用法。
1. 条件虚拟语气条件虚拟语气用于表示假设、与事实相反的情况或不可能的情况。
它包括三种类型：与现在事实相反、与过去事实相反和与将来事实相反。
与现在事实相反：这种类型的条件句用于描述与现实情况相反或与过去和现在的条件不一致的情况。
它的结构是：“if + 过去完成时，主语 + would/could/might + 动词原形”。
例如：- If I had studied harder, I would have passed the exam.（如果我学习更努力点，我就会通过考试了。
）- If she had told me earlier, I could have helped her.（如果她早点告诉我，我本来可以帮助她的。
）与过去事实相反：这种类型的条件句用于描述与过去事实相反的情况。
它的结构是：“if + 过去完成时，主语 + would/could/might + have + 过去分词”。
例如：- If I had known he was sick, I would have visited him.（如果我知道他病了，我本来会去看望他的。
）第1页/共3页锲而不舍，金石可镂。
- If the weather had been better, we might have gone to the beach.（如果天气好些的话，我们也许会去海滩的。
）与将来事实相反：这种类型的条件句用于描述与将来事实相反的情况。
它的结构是：“if + 过去完成时，主语 + would/could/might + 动词原形”。
例如：- If I had more money, I would travel around the world.（如果我有更多的钱，我就会周游世界。
高考if条件句虚拟语气
高考if条件句虚拟语气1.Had he gone to the doctor right away。
he might still be alive.2.If you were older。
I would have allowed you to go there yesterday.3.If we had arrived here ten minutes earlier。
we would have caught the bus.4.If I had had more time。
I would have gone with him.5.If he had not gone out in the storm。
he would still be alive.6.If it were to rain tomorrow。
what would we do?7.If only I knew how to operate an electronic computer as you do.8.If it were to rain。
we would get wet.9.If ___。
he would have known the answer to the problem now.10.---- I thought you would come back tomorrow.I would if I didn't have to ___.11.If I had hurried。
I would have caught the train.12.If I had known that。
I wouldn't have done it.13.If I were you。
I wouldn't return the call.14.If the doctor had been available。
the child would not have died.15.If the doctor had come earlier。
if条件句中的虚拟语气讲解
虚拟语气(一)一、考点聚焦1、虚拟语气用于条件状语从句中If I were a boy, I would join the army.If she had time, she should go with you.If h e had taken my advice, he would have succeeded in the competition.If i t were to rain tomorrow, the football match would be put off.If I had time, I would attend the meeting.If he had hurried ,he could have caught the train.If I were to go abroad ,I would go to America如果我是你，我就会努力学习If I were you, I would work harder at my lessons.如果我知道他的电话号码，我就给他打电话了If I had known his telephone number, I would have called him.如果明天下雨的话，我们会取消比赛．If it should \were to rain, we would call off the match.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.如果你努力学习的话，你现在就会是大学生了．If they had worked hard, they would be very tired now.(从句说的是过去，主句指的是现在)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.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。
if条件状语从句中虚拟语气
if 条件状语从句中的虚拟语气一、 if 条件状语从句中虚拟语气的判断判断是真实条件句还是非真实条件句。
只有在非真实条件句中才使用虚拟语气。
通过句子意思，看假设的条件是否能够实现，能够实现是真实条件句，不能使用虚拟语气； 假设的条件不能实现则是非真实条件句，要用虚拟语气。
1. “后退一步法” 后退一步法是指在准确地判断了该句与哪一事实相反后， 按虚拟语气的后退一步法处理从句谓语动词的时态。
即：在非真实条件状语从句中，谓语动词按正常情况“后退一步”。
也就是：① 与过去事实相反，在从句中用过去完成时形式表示。
② 与现在事实相反，在从句中用过去一般时形式表示。
③ 与将来事实可能相反，在从句中用过去将来时形式表示。
主句中则用情态动词would, should, could 等加一个与从句一致的动词形式。
例： ⑴、 If I had come her yesterday, I would have seen him.⑵、 If I were a teacher , I would be strict with my students. ⑶、 If it should snow tomorrow, they couldn't go out.2 、注意事项：① if 条件句中如有 were,should, had ，可以省去if ，并使用倒装语序。
②在现代英语中 if 条件状与从句中的谓语动词如果是be 其过去形式一般用 were 。
二、虚拟语气在if 引导的条件句中的用法：（一）、表示与现在事实相反的情况。
其句子结构为：从句：if+ 主语 + 动词的过去式 (be 用 were) +,, ，主句： 主语 + would (should, could ,might) + 动词原形 + ,, 例： 1. If it weren ’ t for your help, we would get into trouble. 如果没有你们的帮助，我们就会陷入困境。
if条件句中虚拟语气PPT课件
虚拟在事实相反的情况，使用一般过去时或过去进行时。
与过去事实相反的虚拟语气
表示与过去事实相反的情况，使用过去完成时。
与将来事实相反的虚拟语气
表示与将来事实相反的情况，使用过去将来时。
在委婉语气中的使用
总结词
虚拟语气在if条件句中还可以用于表达委婉的语气，通过使用相应的时态和谓语动词形式来缓和语气或避免直接表达 。
详细描述
在某些情况下，使用虚拟语气可以表达更加委婉的语气，使话语更加柔和、礼貌或含蓄。这种用法通常用于避免直接 表达某些可能引起冲突或敏感的话题。
例子
If I were you, I would consider carefully before making a decision.（如果我是你，我会在做出决定 之前仔细考虑。）这句话使用虚拟语气来委婉地提出建议或建议对方谨慎行事。
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if条件句中虚拟语气的例句分析
与现在事实相反的例句
01
02
03
总结词
表示与现在实际情况相反 的情况
例句
If I were you, I would choose this option.（如 果我是你，我会选择这个 选项。）
解释
这句话表示与现在实际情 况相反的情况，即说话者 不是听话者，所以选择的 情况也是不存在的。
与过去事实相反的例句
总结词
表示与过去实际情况相反的情况
例句
If I had known the answer, I would have told you.（如果我 早知道答案，我早就告诉你了。）
解释
这句话表示与过去实际情况相反 的情况，即说话者没有早知道答 案，所以告诉你的情况也是不存
if 条件句虚拟语气
If条件状语从句虚拟语气三种时态1、对现在情况的虚拟条件从句中谓语动词用一般过去式，主句用“would/should/might/could+动词原形”形式，表示对现在不可能实现情况的假想。
If I were you,I would choose to work in a small town.如果我是你，我会选择在小城镇工作。
（事实上我不是你）注意：在条件从句中，如果谓语动词是be的形式，不管主语是单数还是复数，书面语中用were,而口语中如果是单数，也可以用was,不过在if I were...中一般用were.2、对过去情况的虚拟条件从句中谓语动词用过去完成式，主语用“would/could/should/might+have+动词的过去分词”形式。
If it had not been for your help yesterday,I could not have caught the bus.如果昨天没有你的帮助，我不会赶上公交车。
（事实是你昨天已经帮助了我，所以我赶上了车)3、对将来情况的虚拟在表示与将来事实相反的条件从句中，谓语动词可用should do,were to do或动词的过去式三种形式表示，但意义略有不同。
should表示的可能性最大，动词过去式的可能性次之，were to do 的可能性最小。
If things were to be twice，all would be wise.假如凡事都可以重新做一次，人人皆可成为聪明人。
（事实是并不是所有的事都可以重新做一次)注意：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。
if的虚拟语气用法总结
if的虚拟语气用法总结虚拟语气是指根据说话人的主观意愿、假设、推测等来表示假设、愿望、命令等情态的一种语气。
在条件句中，常用虚拟语气来表示与事实相反的情况。
总结if的虚拟语气用法如下：1. 虚拟条件句：- 类型1：表示可能实现的条件- If + 主语+ 动词(简单现在时)，主语+ will + 动词原形。
- 例句：If it rains tomorrow, I will stay at home.（如果明天下雨，我会呆在家里。
）- 类型2：表示与事实相反的条件- If + 主语+ 动词的过去式，主语+ would/could + 动词原形。
- 例句：If I had money, I would buy a new car.（如果我有钱，我会买一辆新车。
）- 类型3：表示与过去事实相反的条件- If + 主语+ had + 过去分词，主语+ would/could + have + 过去分词。
- 例句：If I had studied harder, I would have passed the exam.（如果我学得更努力，我就能通过考试。
）2. 虚拟表达愿望：- 类型1：表示对现在或将来的愿望- 希望、愿望等动词+ (that) + 主语+ (should) + 动词原形。
- 例句：I wish (that) I could speak fluent English.（我希望我能说一口流利的英语。
）- 类型2：表示对过去的愿望- 希望、愿望等动词+ (that) + 主语+ (should) + have + 过去分词。
- 例句：I wish (that) I had studied abroad when I was younger.（我希望我年轻时出国留学了。
）3. 虚拟表达建议、命令等：- 动词原形+ (that) + 主语+ (should) + 动词原形。
- 例句：I suggest (that) you should take a break.（我建议你应该休息一下。
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------if条件句中的虚拟语气(虚拟条件句)
do we use Subjunctive Mood?
In what situation do we use Subjunctive Mood?
Subjunctive mood is used to talk about situations that are not true or not likely to become true. 表示说话人所说的话不是事实, 而是一 种假设, 愿望, 怀疑或推测,（情况与事 实相反或者不太可能成为事实），动词 需用一种特殊形式——虚拟语气
In Dialogue 4, how would the woman most probably get to work? A. By bus. B. By bike. C. By taxi D. On foot
与过去事实相反的假设
条件状语从句 主句
If+主语+ had+过去分词 +其他
主语+would/should/could/might
Exercise 2: Choose the best answer to each question according to the dialogues in exercise 1. In Dialogue 3, What’s the woman’s comment(评论) on the man’s paper? A. The ideas of the paper are not convincing. B. Some parts of the paper are not well written. C. The handwriting of the paper is not good. D. The paper is not complete.
But if I ____ had you All of the things I would _____ do Everyday we _____ would start something new And I‘d put my world around you Oh baby, if I ____ had you
Exercise 1:Listen to the dialogues and fill in the blanks. 3) —What do you think of my paper? — The ideas are good. If I were you, though, I’d ______ rewritten the last two paragraphs to make it ______. 4) —If I were you, I’d ride a bike to work. Taking a crowded ______ during rush hours is really ______. — Thank you for your advice. ______ my bike has got a flat tyre.
Is Subjunctive Mood used in the sentence?
If I have time tomorrow, I will go with you. No If I were a bird, I would fly high to touch the cloud. Yes
If I get more information, I will tell you immediately. No If I were God, I would make all the blind see the beautiful world.
+have+过去分词
+其他
eg. I would have come if I hadn't been so busy. If she had been given some help, she would have done it better.
1. If I ___________out of my ink, I would have finished writing the paper.
If you ____ were my man I ____ was your woman We ____ were in love Here‘s what _____ would happen I‘d show you things You _____be so open would I know I never will
A. didn’t run C. haven’t run B. shouldn’t run D. hadn’t run
2.If we ___ the other road, we might have arrived here in time for the meeting. A. take B. had taken C. took D. have taken 3.You didn’t let me drive. If we ____ in turn, you ____ so tired. A. drove…didn’t get B. had driven…wouldn’t have got C. drove…wouldn’t get D. were driving…wouldn’t get
Hours Minutes Seconds
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Hours Minutes Seconds
Exercise 1:Listen to the dialogues and fill in the blanks. 1) — I found an expensive diamond ring in the restroom this morning. — If I ______ were you, I’d turn it in to the security office. It’s behind the administration building. would ______ have accepted 2) — If I ______ were you, I ______ the job. down the offer because it would turned ______ — I ______ mean frequent business trips away from my family.
Exercise 2: Choose the best answer to each question according to the dialogues in exercise 1. In Dialogue 1, what does the man suggest the woman do? A. Give the ring to a policeman. B. Wait for the owner of the ring in the rest room. C. Hand in the ring to the security office. D. Take the ring to the administration building. In Dialogue 2, did the man accept the job? Why? YES? NO? Because he wants to ________________________________ spend more time with his family.
+其他
+其他
eg. If I had the book, I would lend it to you. He would attend the meeting if he weren’t ill today.
1.如果我有五百万， 我会去环游世界。
If I ____ had 5 millions, I ______ would _____ travel all over the world.
If But you if I____ ____my you man I All ____ of the your things woman I _____ do We Everyday ____ in we love _____ start If I Had You Here‘s something what new _____ happen Claude Kelly I And ‘d show I‘d put you my things world You around _____ yoube so open I know I never will you Oh baby, if I ____
Group Work
Work in groups of 6 and check your answers to Exercise 1. Then finish Exercise 2 together.
பைடு நூலகம்
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2.如果我知道她的电话号码，我会马上打电话给她。 ring her up right now. If I knew ____ her number，I would _____ ____ 3.如果我是你，我会带把伞。 If I were ____ you, I ______ would ____ take an umbrella.
2) — If I ______ you, I ______ ______ accepted the job. — I ______ ______ the offer because it would mean frequent business trips away from my family.