if的虚拟语气用法
虚拟语气if的三种用法教案-定义说明解析
虚拟语气if的三种用法教案-范文模板及概述示例1:标题：虚拟语气if的三种用法教案引言：虚拟语气if是英语语法中的一个重要概念。
它用于描述虚拟的情况或假设，与实际情况相反或不可能实现的情况。
在本文中，我们将介绍虚拟语气if的三种常见用法，并提供相关教学案例。
一、虚拟语气if表示对过去情况的假设1. 如果现在完成时表示过去的假设例如：If I had studied harder, I would have passed the exam.（如果我当时更努力学习，我就能通过考试。
）2. 如果过去完成时表示过去情况的假设例如：If you had told me earlier, I would have helped you.（如果你早点告诉我，我就会帮助你。
）教学案例：让学生完成以下句子，使用虚拟语气if表示对过去情况的假设：1. 如果他没有错过公交车，他就不会迟到了。
2. 如果我看到那本书，我就会告诉你。
3. 如果我知道你的生日，我就会为你准备礼物。
二、虚拟语气if表示对现在情况的假设1. 如果一种不可能实现的现实情况例如：If I were a bird, I would fly around the world.（如果我是一只鸟，我就会飞遍全世界。
）2. 如果一种与实际情况相反的情况例如：If it wasn't raining, we would go for a walk.（如果不下雨，我们就会去散步。
）教学案例：让学生完成以下句子，使用虚拟语气if表示对现在情况的假设：1. 如果我有超能力，我会帮助所有需要帮助的人。
2. 如果我有时间，我会去旅行。
3. 如果我不生病，我就会参加派对。
三、虚拟语气if表示对将来情况的假设1. 如果将来某种情况不会发生例如：If it doesn't rain tomorrow, we will have a picnic.（如果明天不下雨，我们将去野餐。
(完整版)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 time , 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 would 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。
if引导虚拟语气的用法
if引导虚拟语气的用法1、表示与现在事实相反的情况：从句：If主语+过去时(Be动词用were)主句：主语+XXXdoeg：1．If I were you,I would take an XXX.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）3．If there were no air or water,there would be no living things on the earth.如果没有水和空气，地球上就不会有生物。
(事实：地球上既有空气也有水)4．If I had any money with me,I could lend you some.假如我带钱了，我就会借给你些。
（事实：没有带钱）5．If he XXX,he might pass the exam.如果他再努力些，就能通过考试了。
（事实：没有努力）6．she looked at me as if I had been a stranger.她看我的样子好像我是一个陌生人。
（事实：我并非陌生人）2、表示与过去事实相反的情况从句：If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 XXX my advice,he would not have made such a XXX.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、透露表现对未来情形的客观推测主句：主语+should+do从句：①if+主语+were to do②if+主语+should/would/could/might+do③if+主语+did（动词过去式）/wereeg：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。
虚拟语气if的三种用法例句有什么
虚拟语气if的三种用法例句有什么三种情况，(1)对过去，从句had done主句would/could/might/have done(2)对现在，从句：did /were 主句：would/could/might do(3)对将来，should do/were to do/did.从句，更上一个一样。
注意，“主将从现”原则。
虚拟语气if的用法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、should或might 加动词原形，条件从句中的谓语用过去式。
如：If we walk faster,we can get there earlier.如果我们走快一点，就能早点到达那里。
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、should或might 加have再加动词原形，如：If I wear my clothes thicker,I won’t catch a cold.如果我把衣服穿厚点，就不会感冒了。
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、should或might 加动词原形，条件从句中的谓语用过去式。
如：If it rains tomorrow,will you go shopping?如果明天下雨，你还会逛街吗？虚拟语气if的结构1、表示与现在事实相反的情况：从句：If+主语+动词一般过去时(Be动词用were)。
主句：主语+ should/would/might/could+do。
2、表示与过去事实相反的情况：从句：If+主语+had+done。
主句：主语+should/would/might/could+have done。
3、表示与将来事实相反：从句：①if+主语+were to do。
②if+主语+should+do。
③if+主语+动词一般过去式（be动词用were）。
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
if虚拟语气用法
if虚拟语气用法虚拟语气（Subjunctive Mood）是英语中的一种语气，用于表示假设、建议、愿望、怀疑等非现实的情况。
在if虚拟语气用法中，通常有以下几种情况：1. 对现在或将来的假设：- 如果我是国王，我会做很多好事。
（If I were a king, I would do many good things.）- 如果我是你，我会去旅行。
（If I were you, I would travel.）2. 对过去的假设：- 如果我昨天赢了彩票，我就会买一辆新车。
（If I had won the lottery yesterday, I would have bought a new car.）- 如果我早点知道这个消息，我就不会错过那个会议了。
（If I had known this news earlier, I wouldn't have missed that meeting.）3. 建议、要求或命令：- 如果你能帮我一下，我会非常感激。
（If you could help me, I would be very grateful.）- 如果他不来参加会议，我们就取消吧。
（If he doesn't come to the meeting, let's cancel it.）4. 愿望、希望或遗憾：- 要是我能飞就好了。
（If only I could fly.）- 要是我昨天没生病就好了。
（If only I hadn't been sick yesterday.）5. 建议或要求某人做某事：- 如果你愿意的话，请帮我一个忙。
（If you would like to, please do me a favor.）- 如果他不介意的话，让他来参加我们的聚会吧。
（If he doesn't mind, let him come to our party.）。
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。
if从句的虚拟语气
if从句的虚拟语气如果从句的虚拟语气指的是构建一种假设或虚拟情况下的语气，有时也可称为“虚拟条件句”或“假设句”。
这种情况下，从句中所描述的情况可能不是现实的，而是一种假设、推测或不可能的情况。
在英语语法中，如果从句的虚拟语气有三种时态：过去时、现在时和将来时。
我们将逐一解析这三种语气。
如果从句的虚拟语气与过去时的结合是最常见的形式。
下面是句子的基本形式：- If + 过去式，would + 动词原形例如：- 如果我赢了一百万，我将搬到纽约。
，— If I won a million dollars, I would move to New York.在以上的例子中，“I won” 是假设句，假设其中描述的情况并不是现实的，因为事实上并没有赢得一百万美元。
因此，使用虚拟语气来表达这种假设是完全合理的。
要注意的是，在这个句子中，如果从句中所用的动词必须使用一个过去式的动词，因为它是与假设句配合使用的。
现在时的虚拟语气通常用于表示假设或不可能的情况。
下面是句子的基本形式：- If + 现在时，would + 动词原型例如：- 如果我生活在美国，我会像美国人一样庆祝感恩节。
，— If I lived in America, I would celebrate Thanksgiving like an American.在以上的例子中，“I lived” 是一个虚拟语气的例子，因为该从句所描述的情况并不是现实的。
也就是说，事实上并没有明确地描述过这个人是否住在美国，所以使用这种虚拟语气是合理的。
要注意的是，因为这个从句用于表示假设，所以主语“我”所使用的动词应该与“lived”一样使用过去式。
将来时的虚拟语气很少用于表示假设或不可行的情况，但也有时用于虚拟情况的叙述。
基本形式如下：- If + 将来时，would + 动词原型例如：- 如果我获得了奖学金，我会去上大学的。
，— If I were to receive a scholarship, I would go to college.在这个句子中，“I were” 表示这种假设情况。
if 条件状语从句中的虚拟语气
1.if 条件状语从句中的虚拟语气一、if 条件状语从句中表示对将来、过去、现在的虚拟1. If she invites me tomorrow, I shall go to the party.（真实条件句）如果她明天邀请我参加聚会,我就去.If she invited me , I should go to the party.[虚拟条件句] (说话人认为邀请的可能性较小或不可能)She will probably not invite me, so I shall not go to the party.2. If she had invited me yesterday, I should have gone to the party.假如她昨天邀请我参加聚会,我就去了.She didn`t invite me yesterday, so I didn`t go to the party. 她昨天没有邀请我参加聚会,因此我没有去.3. If she should invite me tomorrow, I should go to the party.If she were to invite me tomorrow, I should go to the party.If she invited me tomorrow, I should go to the party.1.对现在的虚拟条件状语从句的动词形式主句的动词形式If+主语+动词过去式(be的过去式用were) I (we) should+动词原形主语+would(might, could)+动词原形If I were you, I should study English. (I am not you , so I shall not study English.)If I had time, I would attend the wedding. (I does not have time, so I will not attend the wedding.)If they didn`t take physical exercises every day, they wouldn`t be so healthy.(They take physical exercises every day, so they are very healthy.)2.对过去的虚拟条件状语从句的动词形式主句的动词形式If+主语+had+过去分词 I(we) should+ have+过去分词主语+would(might, could)+have+过去分词If you had taken my advice, you wouldn`t have failed in theexamination.(You did not take my advice, so you have failed in the examination.)3.对将来的虚拟条件状语从句的动词形式(三种) 主句的动词形式⑴If+主语+动词过去式(be的过去式用were),通常要与一个表示将来的时间状语连用(tomorrow)⑵If+主语(任何人称和数)+should+动词原形⑶If+主语(任何人称和数) +were +to动词原形I (we) should+动词原形或主语(任何人称)+would(might, could)+动词原形If it rained tomorrow, our picnic would be put off.If it should rain tomorrow, our picnic would be put off. If it were to rain tomorrow, our picnic would be put off.。
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 ,
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、i f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.（2）、If I were a teacher , I would be strict with my students.⑶、If it should snow tomorrow, they could n't go out.2、注意事项：①if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。
if引导虚拟语气的用法
1、表示与现在事实相反的情况：从句：If 主语+过去时(Be动词用were)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.如果我知道他的电话号码，我就会告诉你。
（事实：不知道）3．If there were no air or water,there would be no living things on the earth.如果没有水和空气，地球上就不会有生物。
(事实：地球上既有空气也有水)4．If I had any money with me,I could lend you some.如果我带钱了，我就会借给你些。
（事实：没有带钱）5．If he studied harder,he might pass the exam.如果他再努力些，就能通过考试了。
（事实：没有努力）6．she looked at me as if I had been a stranger.她看我的样子好像我是一个陌生人。
（事实：我并非陌生人）2、表示与过去事实相反的情况从句：If 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主句：主语+should+do从句：①if+主语+were to do②if+主语+should/would/could/might+do③if+主语+did（动词过去式）/wereeg：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。
(完整版)if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’t 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.If 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.If 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.If I were you,I would take an umbrella.如果我是你，我会带把伞。
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：①if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：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;而事实上得到了你们的帮助the weather were fine, I would go there. 如果天气好,我去那儿;事实天气不好I were you, I would read it again. 如果我是你的话,我再读一遍;事实上我不是你time permitted, I would write it again. 如果时间允许的话,我再写一遍;事实上时间不允许it weren’t snowing, we wouldn’t stay in the house. 要是现在不下雪的话,我们就不会待在屋里;事实上现在下雪would I do if I were in your place要是我处于你地位我会怎么办事实上我不在你的位置上he hurried, he could catch the first bus. 他要是快点能够赶上头班公共汽车;可是他不着急8. If I were you, I should buy it. 从句用过去式动词were,主句用动词原形buy9. If I had time, I would study French. 如果有时间,我会学习法文;从句用过去式动词had,主句用动词原形study10. If she knew English, she would not ask me for help. 如果她懂英文,她就不必要我帮了;从句用过去式动词knew, 主句用动词原形ask 注意：如果动作在进行中,主句要用："主语+ would be + 进行式动词+ ……" 14. If they were here, he would be speaking to them now. 从句用过去式动词were, 主句用would be speaking例如:⑴、If you had taken my advice, you would not have made such a mistake.如果你听了我的劝告,就不会犯这样的错误;事实上你没有听我的劝告⑵、I shouldn’t have been able to write such good novels if I hadn’t lived among the peasants for five years.如果我不是和农民生活了五年,就不可能写出这样好的小说;事实上我和农民生活了五年⑶、If you hadn’t invited me, I shouldn’t have come to the party.如果你不邀请我,我就不会来参加你的舞会;事实上你邀请了我⑷、If I hadn’t been ill yesterday, I might have come to school.昨天要是不生病,我是可能来上学的;事实上我生病了⑸、If he hadn’t broken the law, he wouldn’t have been put in prison.如果他不违法的话,就不会被打入监狱;事实上他违法了⑹、If I had been your headmaster, I should have dismissed you from school. 我要是你们校长的话,就把你开除学籍了;事实上我不是注意：如果动作在进行中,主句要用："主语+ would + have + 完成进行式动词+……⑺、If they had been here, he would have been speaking to them.从句动词用had been, 主句动词用have been speaking⑴、I f I were to work at this problem, I would do it in another way.要是我来解这道难题,我会用另外一种方法的;⑵、I f you were to do such a thing again, you would be punished. 如果你再做这样的事情,就会受到惩罚;⑶、I f I should work harder, I could make much more progress.假如我更努力学习的话,我会取得更大的进步;事实上我不可能努力学习⑷、I f it should rain tomorrow, I would stay at home.如果明天下雨的话,我将待在家里;根据天气情况,明天不可能下雨⑸、I f he should come, I could ask him for some advice.万一他来了,我就能够向他请教;事实上他来的可能性很小⑹、I f he came tomorrow, I would do it with him.如果明天他来的话,我将和他一起做此事;事实上他来的可能性很小⑺、If it should rain, the crops would be saved.从句动词用should rain,主句动词用be 如果天下雨,庄稼可能就收获了;⑻、If he were here, I would give him the books.从句动词用were, 主句动词用give 如果他在这儿,我可能会把书给他;注意：如果动作在进行中,从句不是主句要用："If + 主语+ 过去进行式动词+……"⑼、If she were staying here now, I would let her ride my horse.从句动词用were staying, 主句动词用let如果她现在留在这儿,我可能会让她骑我的马;。
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if导的条件状语从句可以分为两类：真实条件句和虚拟条件句。
凡是假设的情况发生可能性很大，就是真实条件句；当假设不太可能实现时，就是虚拟条件句。
下面我们一起看看在条件状语从句中的虚拟语气。
1)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+……If I were you, I would read it again.如果我是你的话，我再读一遍。
(事实上我不是你)If he hurried. he could catch the first bus.他要是快点能够赶上头班公共汽车。
(可他不急)If she knew English, she would not ask me for help.如果她懂英文，她就不必要找我帮忙了。
2)表示与过去事实相反的虚拟条件句。
其句子结构为：从句:If+主语+had+过去分词+“主句：主语should,could,might)+have+过去分词+....If you had taken my advice, you would not have made such a mistake.如果你听了我的劝告，就不会犯错了.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。
If I hadn't been ill yesterday, I might have come to school.昨天要是不生病，我就来上学了。
(事实上我生病了)If you had studied harder last term, you could have passed the exam.如果你在上个学期用功一些，你就会通过考试了。
if的用法虚拟语气
if的用法虚拟语气一、概述使用虚拟语气的一个重要方面是if条件句。
在英语中，if引导的条件句可以表达对现实情况的假设、猜测以及对未来可能发生情况的虚构和愿望。
本文将介绍if 条件句的三种形式以及它们在不同语境中的用法。
二、Type 1 条件句：对现实情况的假设Type 1 条件句表示真实或可能发生的事实，并使用“现在时”来描述。
这种条件句引导下，主句可以使用一般现在时或将来时。
1. If + 简单现在时，主句一般现在时如果明天下雨，我会带伞。
If it rains tomorrow, I will take an umbrella.2. 如果明天下雨，我就不去野餐。
If it rains tomorrow, I won't go on a picnic.3. 如果你迟到，老板会生气。
If you are late, the boss gets angry.4. 如果他学习努力，他可以通过考试。
If he studies hard, he can pass the exam.三、Type 2 条件句：对现在虚拟情况及假设提出建议或警告Type 2 条件句用于描述目前不太可能或不太可能发生事实，并使用“过去时”来描述。
这种条件句引导下，主句使用虚拟语气来表达对未来情况的假设。
1. 如果我有更多时间，我会旅行。
If I had more time, I would travel.2. 如果她付出更多努力，她会取得好成绩。
If she worked harder, she would get better grades.3. 如果你离开公司，你将失去机会。
If you leave the company, you will miss the opportunity.4. 如果我是你，我会接受那份工作。
If I were you, I would take that job.四、Type 3 条件句：对过去虚拟情况及假设提出后悔或反悔Type 3 条件句用于描述过去不可能发生的事实，并使用“过去完成时”来描述。
if虚拟语气的用法
if虚拟语气的用法1. If I were a bird, I would fly freely in the sky! Just like if you had the wings of an angel, wouldn't you be excited to soar high? Example: If I were a bird, I would go wherever I wanted.2. If he had more time, he could achieve so much more! Isn't it like when you have more free time, you can do all those things you always wanted to? Example: If he had more time, he would learn a new language.3. If she were braver, she would take more risks! It's like if you were gutsier, you'd be more daring, right? Example: If she were braver, she would ask for that promotion.4. If we had a magic wand, we could solve all problems! Just as if there was a fairy's wand in your hand, how amazing would that be? Example: If we had a magic wand, we would end poverty.5. If they knew the truth, they would be shocked! It's similar to if you found out something really surprising, you'd be astonished too, wouldn't you? Example: If they knew the truth, they would change their minds.6. If I had a million dollars, I would live a luxurious life! Just like if you suddenly had a fortune, how would you spend it? Example: If I had a million dollars, I would buy a mansion.7. If he listened to others, he would learn more! It's as if you opened your ears to different opinions, you'd gain so much knowledge! Example: If he listened to others, he would grow wiser.8. If she stopped being so stubborn, she would get along better with people! Just as if you let go of your stubbornness, you'd have better relationships, right? Example: If she stopped being so stubborn, she would have more friends.9. If we all cared more, the world would be a better place! It's like if everyone had a big heart, how wonderful the world would be! Example: If we all cared more, there would be less suffering.My conclusion is that if we use the power of "if" in our imagination and actions, we can bring about many positive changes and possibilities. It allows us to dream, to strive for better, and to make a difference.。
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选的候选人）If I became President,I'd...(表示极少可能发生， 说话者是学生）If I win this r
ace,I'll...(说话者是跑得最快的运动员）If I won this race,I'd...(说话者是跑得最慢的运动员）4.
条件句虚拟语气中的情态动词的使用条件句虚拟语气主 句除了可使用would外还可以便用might, could和should。 其中sho
ob?如果你失去了工作，你做什么？【注】在正式用语中， 条件句虚拟语气中从句中的be动词不管是什么人称,多用 were形式代替"was"
.If I were rich,I would spend all my time travelling.如果我很 富有，我将花所有的
时间旅行。2.表示过去未实现的条件(例如由于不可能实 现或某人之未能实行)，if从句中用过去完成式（had+过 去式），主句用“woul
d + have + 过去分词”结构。If you had worked harder,you would have passed
your exam.如果你工作更努力，你将通过考试。If you had asked me,I would have told yo
u.如果你问我，我将告诉你。I’d have been in bad trouble if Jane hadn't helped m
if引导条件状语从句时，常用虚拟语气。这篇我们接着说 if的用法-if的虚拟语气用法。虚拟语气是英语中用来表示 对不可能发生的事物的一种
猜测或假设的语气。1.表示对不可能发生或不太可能发生 的现在或将来情况的假设，if从句中用过去式，主句用 “would+动词原形”。If
I knew her name,I would tell you.（NOT If I would know... NOT
uld多用于第一人称后。在美国英语中在第一人称后多用 would。If I have enough t. 如果我有足够的时间,我会完成它的。If he hadn't been ill, he might h
ave come. 要不是生病,他可能就来了。If I had been more careful, I could have do
...I will tell you.）如果我知道她的名字，我将告诉你。If you came tomorrow,I would h
ave more time to talk.如果你明天来，我将有更多的时间 交谈。I would be perfectly happy
if I had a car.如果我有一辆车，我会很高兴.What would you do if you lost your j
e.如果简没帮助过我，我将不会碰到麻烦。3.if引导从句， 虚拟语气和一般语气的区别“If I get”和"if I got”，“If
I have"和”If I had"的区别不是时间的区别，它们都可以 指现在或将来，if后面用过去时态（即虚拟语气）表示” 不可能发生
或不太可能发生的情况的假设“，试比较下面的句子：If I become President,I'll...（表示可能发生，说话者是竞
ne better. 我要是细心一点,是可以做得更好的。更对人阅 读：if的一般用法
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