(完整版)if引导的条件句中的虚拟语气

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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。

(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。

虚拟语气在if条件句中的用法

A. Were
If it were/ should be fine tomorrow , I would go to see him.
如果上天能够给我一个再来一次的机会，我会对那个女孩子说三个字：我爱你。如果非要在这份爱上加上一个期限，我希望是--一万年!
If the God ___sh__o_u_l_d_/_w__e_r_e_t_o__g_i_v_e_/_g_a(gveive) me another chance，I__w_o_u__ld__t_e_l_l__ (tell)the girl three words: I love her! If our love __h_a__d_t_o__ (have to) be set a time limit, I wish it w__o_u_l_d__b_e___ (be)10,000 years!
If they had had enough rain last year, they would have gained good harvest.
If he had driven more carefully yesterday, he would not have had the car accident .
错综时间虚拟条件句
• 所谓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：
错综时间虚拟条件句
If it had rained last night, the ground would be wet now.
省,并倒装成：Were / Should / Had +主+其他如果If 这the只li小ttl老e m鼠o是us只e w鸟er，e 它a b就ir能d, 在it 天上

If 引导的虚拟语气

If虚拟语气在if引导的条件句中的用法三点：从句（条件）主句（目的）例句表示于现在事实相反的虚拟条件句If+主语+动词的过去式（be用were）主语+would(shouldcould might)+动词原型If he were free, he would help us. 要是他有空的话，它会帮助我们的。

表示与过去事实相反的拟条件句If+主语+had+动词的过去分词主语+would（shouldcould might）+have+动词的过去分词If I had seen the film, I would havetold you about it. 我如果看过这场电影，我会把电影内容告诉你了。

表示与将来事实相反的虚拟条件句If+主语+should（wereto）+动词原型/动词的过去式主语+would（couldshould might）+动词原型If he were to come here, he wouldtell us about it. 如果他要来的话，他会通知我们一声引导真实条件状语从句引导真实条件状语从句（虚拟语气）与将来事实相反的虚拟语气请看下面的题目：If we __________ 200 years old，we __________ everything.A. were to be，could changeB. had been，changedC. were，would have changedD. should be，changed该题考查与将来事实相反的虚拟语气，此时的主句谓语通常用would(should，could，might)＋动词原形，而从句谓语可能有以下几种情况：1.从句谓语用过去式：If your father knew this，he would be angry. 要是你父亲知道了，他会生气的。

If it rained tomorrow，the sports meet would be put off. 要是明天下雨，运动会就推迟。

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。

(完整版)完整虚拟语气用法表格归纳图

The man insisted【坚持认为】that he had never stolen the money.
在expect，believe，think，suspect等动词的否定或疑问形式后的宾语从句中的虚拟语气
经常用“should+动词原型（或完成形式），表示惊奇，怀疑，不满等情绪。
I cannot believe that you should think so.
在“It is (was)+名词+that…..”结构句中的虚拟语气
表示建议，命令，请求，道歉，怀疑，惊奇等。
It’s a pity that you (should) miss a good chance.
这类名词有：advice，decision，desire，demand，idea，order，pity，proposal，recommendation，suggestion，surprise，wish，wonder等。
“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.
2.The game will be put off in case it snows.
名词性从句中的虚拟语气
表示“要求”的：ask,desire, request,demand,require,beg
表示“同意，坚持”的：insist
表示“决定，命令”的：decide,order
注意：suggest,insist不表示建议或坚持要某人做某事时，即它们用于其本意暗示，表明，坚持认为时，宾语从句用陈述语气。

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。

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：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。

（而事实上得到了你们的帮助）2.If the weather were fine, I would go there. 如果天气好，我去那儿。

if条件句中虚拟语气PPT课件

在英语中，虚拟语气通常通过动词时态的变化来体现，如使用过去时、过去完成时或过去将来时等。
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。