高考虚拟语气用法详解 一·语气概述 和时态语态一样，语气也是谓语动词的一种形式，它表明说话者的目的和意图。英语中有三种语气：陈述语气，祈使语气和虚拟语气。（有的语法书说语气有四种，即还包括疑问语气）。 eg：①He doesn’t see very well in his right eye .他右眼视力不太好。（陈述语气） ②Have they ever been to Australia ?他们去过澳大利亚没有？（疑问语气） ③Please read through the instruction in advance .请先通读说明书。（祈使语 气） 二·虚拟语气概述 在英语中，由于说话人的意图不同，动词需用不同的形式，称为语气。虚拟语气是指说话人表示一种假设的情况，一种愿望，怀疑，推测，请求等，即认为动词所表示的动作或状态并非事实。虚拟语气可用于状语从句，名词性从句，定语从句及其他结构中。 三·非真实条件句中的虚拟语气 真实条件句（遵循主将从现原则） A.由If引导的两种条件句： 非真实条件句（虚拟语气） 以下为If在非真实条件句中虚拟语气的形式和用法： 假设类型If从句主句 与现在事实相反did (be用were)should/would/ could/might do 与过去事实相反had done should/would/ could/might have done 与将来事实相反1)did 2)were to do 3)should do should/would/ could/might do eg：①If I were you ,I would reconsider their advice .如果我是你的话，我会重新考虑他们的意见。（与现在事实相反） ②You would not have caught a cold if you had put on more clothes .如果你多穿了些衣服，你就不会得感冒了。（与过去事实相反）
高中英语虚拟语气详细讲解 虚拟语气 什么是虚拟语气？是的，我们要学习虚拟语气就必须先弄明白它的概念。 虚拟语气包含两种：一种指与事实相反或不可能发生。“虚拟条件句+虚拟主句”的结构都属于这一类；even if、even though、as if、as though引导的状语中如果需要用到虚拟语气也属于这一类；wish、would rather后面接的宾语从句表示不可能实现的愿望，还是属于这一类。 另一种指与事实实际是否发生没有直接关系。如和suggest、order、demand等表示建议、命令、要求等相关的名词性从句都属于这一类。 大家知道以上两类虚拟语气后，我们就从从句的角度来系统学习虚拟语气。紧跟小简老师的步伐哦！ 一. 虚拟条件句中的虚拟语气 1、表示与现在事实相反的情况 从句：If+主语+did(be动词用were) 主句：主语+ should/would/might/could+do
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） If I knew his telephone number,I would tell you. 如果我知道他的，我就会告诉你。（事实：不知道） 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) 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 If I had got there earlier,I should/would have met her. 如果我早到那儿，我就会见到她。（事实：去晚了） 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、表示与将来事实相反的情况
虚拟语气用法详解 一、条件句中的虚拟语气 1.条件句中虚拟语气的形式 从句中提出一种与客观现实不相符或根本不可能存在的条件，主句会产生的一种不可能获得的结果。条件句中的虚拟语气根 2. 条件句中的虚拟语气的举例 (1) 将来时的条件句中的虚拟语气。如： If he should go to Qing Hua Univer sity, he would make full use of his time. If he were to come here, he would tell us about it. (2) 现在时的条件句中的虚拟语气。如： If he were free, he would help us.
If he studied at this school, he wo uld know you well. (3) 过去时的条件句中的虚拟语气。如：If I had seen the film, I would have tol d you about it. If I had got there earlier, I would have met Mr. Li. 3.运用条件句中的虚拟语气时，须注意的几个问题 (1) 有时，虚拟条件句中，主、从句的动作若不是同时发生时，须区别对待。 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。如： If I had worked hard at school, I would be an engineer, too. If they had informed us, we would not come here now. (2) 当虚拟条件句的谓语动词含有wer e, should, had时，if可省略，而将were, s hould, had等词置于句首。如： Should he agree to go there, we wo uld send him there. Were she here, she would agree wit h us. Had he learnt about computers, we would have hired him to work here. (3) 有时，句子没有直接给出假设情况的条件，而须通过上下文或其他方式来判断。如：
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。 ①“wish + 宾语从句”表示不能实现的愿望，译为“要是……就好了”等。 表现在过去时 表过去过去完成时 表将来would, might, could＋动词原形 I wish it were spring all the year round. I wish I had known the answer. I wish I could fly like a bird. I wish (that) I were a bird. I wish (that) I had seen the film last night. I wish (that) I would\could go.
虚拟语气详解 虚拟语气表示说话人的主观愿望（往往与客观事实相反），或是表示假象和猜测。虚拟语气无论从形式上还是时态上都比较复杂，需要归类记忆。 虚拟语气大体分为三类：(1) be型虚拟(2) were型虚拟(3) if 条件句及主句虚拟下面会详细说每种虚拟形式的特征和规律，考试时先判断属于哪种虚拟类型，剩下的皆是套路~ （1）be型虚拟（基本是套路） 形式：should + 动词原形，should可以省略 用法：1）表示“命令、建议、要求”等意义词语之后的宾语从句用be型虚拟，常见的词如下: demand, desire, insist, order, ask, command, propose, recommend, suggest, prefer, require, request等 最常见的形式是这类动词后面接着一个宾语从句，则宾语从句的谓语部分要用（should）+ 动词原形来虚拟 例: We demand that the meeting（should）be postponed. The manager suggested that we (should) work together. 注意：有时候你所见到不一定是上述动词引导的宾语从句，而是由上述词变体后所引导主语从句(it做形式主语，如：it is advised/ suggested/ requested/ ordered/ proposed that…)、表语从句或同位语从句 例如：It is required that the students (should) learn a foreign language. (主语从句) The requirement is that all the equipment in the meeting room (should) be checked twice before. (表语从句) We didn’t stand for his proposal that the meeting (should)be postponed. (同位语从句) 只要看到句中有上述动词或其变体，不管词性怎么变、句型怎么变，都用be型虚拟！ 特例：suggest和insist这两个比较特殊，当suggest作“暗示、表明、说明”讲，insist 作“坚持说”讲，后面一般跟的是客观事实，不需要虚拟~这是一个比较重要的考点，体会下面两组句子： We all suggest that a lab (should) be built. 我们都建议建一个实验室。 Her expression suggests that she is angry. 她的表情说明她生气了。 She insisted that we should find the source of the river. 她坚持主张我们应该找到河的源头。 She insisted that she had done nothing wrong. 她坚持说自己没做错事。 suggest 的区别很明显，但insist有点难辨别，一般来说如果insist后面跟的是某种主张，或是坚持要做一件事，那么用虚拟。 2）表示主观看法，常表示“某事是必要的、重要的。。。怎么怎么样的”，尤其是在“ it is +名词/形容词+ that从句”结构中，常见的形容词包括：advisable, desirable, essential, imperative, important, necessary, obligatory, proper, dispensable, impossible, natural, surprising等 例如：It is advisable that you (should) leave now. It is necessary that teenagers (should) take part in outside activities. It is of great importance that smoking (should) be banned in public area.
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） 2.If the weather were fine, I would go there. 如果天气好，我去那儿。（事实天气不好） 3.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） 4.If 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） 5.If 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） 6.What 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） 7.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buy) 9. 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study） 10. 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)
虚拟语气在as if/as though引导的方式状语从句中1.表示与现在事实相反或对现在情况有怀疑，谓语动词用过去式。 He treats the boy as if he were his own son. 2.表示与过去事实相反，谓语动词用过去完成时。 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 He acts as if he could win in the game . 注意：1.在as if/as though 句中，如果有可能成为事实，用陈述语气。 例：He looks as if he going to be ill. 2.as though或as if引导的状语从句，从句主语和主句主语相同时，从句中可省略主语和部分谓语。 虚拟语气用在lest，for fear that，so that及in order that引导的目的状语从句中表示“以防，以免”等意思谓语动词多用should/could/might+动词原型构成 For fear that it may rain tomorrow, we should bring an umbrella. 由“providing（that） /provided（that）/on condition that/suppose （that）/supposing （that）”引导的条件从句根据情况，1.可以用虚拟语气。 例：suppose/supposing that it rained,we shouldn’t go out. 2.也可以用陈述语气。 例：They are willing to surrender provided they are given free pardon..
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 ol d 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。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. 4、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。
虚拟语气 第一部分：语气的定义和种类 1 语气(mood) 语气是动词的一种形式，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 ⑴、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。如： ①There are two sides to every question.每个问题都有两个方面。 ②Were you busy all day yesterday?昨天一整天你都很忙吗？ ③How good a teacher she is!她是多好的一位老师啊！ ⑵、祈使语气：表示说话人对对方的请求或命令。如： ①Never be late again!再也不要迟到了。 ②Don’t forget to turn off the light.别忘了关灯。 ⑶、虚拟语气：表示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。如： ①If I were a bird, I could fly in the air.如果我是一只小鸟，我就能在空中飞行。 ②I wish I could pass the examination.我希望我能通过考试。 ③May you succeed!祝您成功！ 虚拟语气在语法里算得上是个难点。让我们就从最简单的开始吧。 第二部分：简单句中的虚拟语气 一、情态动词的过去式用于现在时态时，表示说话人的谦虚、客气、有礼貌、或委婉的语气，常用于日常会话中。如： ⑴.Would you be kind enough to show me the way to the post office?请你告诉我去邮局的路好吗？ ⑵.It would be better for you not to stay up too late.你最好别熬夜到很晚。 二、表祝愿。 1、常用“may+动词原形”表示祝愿，但愿，此时may须置于句首（多用于正式文体中）。 ⑴、May good luck be yours!祝你好运！ ⑵、May you be happy!祝你快乐！ ⑶、May you do even better!祝你取得更大成就！ ⑷、May you have a good time. 祝愿你玩的痛快。 ⑸、May the friendship between us last long. 祝愿我们的友情天长地久。 ⑹、May you be happy. (注意那个be ) 祝你幸福。 2、用动词原形。例如： (1).Long live the people! 人民万岁！ (2).“God bless you,”said the priest.牧师说：“愿上帝保佑你！” (3).Have a good journey! 祝愿你旅途愉快！ 三、表示强烈愿望。（该类型虚拟语气谓语仅用动词原形，第三人称单数也不加“s”） (1).God save me． (2).Heaven help us． 四、表命令 1.命令虚拟语气只能用在第二人称(you)，而且通常省略主语(也就是you)。 2.句子尾通常加上感叹号：！ 3.虚拟语气动词用一般现在时态(Simple Present)，如：work, be , go 4.否定形式的命令语气，可用助动词do，加上not。 (1). Work ! (2). Work harder ! (3). Be more alert ! (虚拟语气动词Be) (4). You go out ! (5). Do not work so hard. (do not 表示否定的虚拟语气) (6). Don't be afraid. (口语中常用don't 代替do not) 五、在一些习惯表达中。如： (1).You’d better set off now.你最好现在就出发。 (2).I’d rather not tell you the secret.我情愿不告诉你这个秘密。 第三部分：名词性从句中的虚拟语气 第一节：宾语从句(Subordinate Clause)中的虚拟语气 一、在动词wish后的宾语从句中的虚拟语气 在动词wish后的宾语从句中的虚拟语气，常省去宾语从句的引导词that。 一）、对现在情况的虚拟（与现在的事实相反）： 从句用过去式或过去进行式(时间上是同时的)。其句子结构为：宾语从句的谓语be和were(was)，实义动词用过去式。例： 1. I wish (that可省略,下同)I knew the answer to the question.(wish, 动词过去式knew)我希望知道这个答案。(事实上是不知道) 2. I wish it were spring in my hometown all the year around.(wish, were)但愿我的家乡四季如春。(事实上不可能) 3. I wish I were a bird.(wish, were)但愿我是只小鸟。(事实上不可能) 4. When she was at the party, she wished she were at home.(wished,过去虚拟动词were)(事实上并不在家) 5. Now that he is in China, he wishes he understood Chinese.(wishes,过去虚拟动词understood) 现在他在中国，他希望能懂得中文。(事实上并不懂) 6. When we begin the trip, they will wish they were with us.(will wish,过去虚拟动词were)(事实上并不和我们在一起)
高考虚拟语气试题 1. ____ to the doctor right away, he might have been alive. A. If he went B. Were he gone C. Should he have gone D. Had he gone 2. If you were older, I ____ you to go there yesterday. A. will allow B. should allow C. would have allowed D. had allowed 3. If we ____ here ten minutes earlier, we ___ the bus. A. arrived/would catch B. arrived/would have caught C. had arrived/had caught D. had arrived/would have caught 4. If I ___ more time, I would have gone with him. A. had B. had had C. have had D. would have 5. If he had not gone out in the storm _____. A. he will be alive now B. he would be alive now C. he would have been alive now 6. If it ___ tomorrow, what would we do? A. rains B. were to rain C. would rain D. rain 7. If only I _____ how to operate an electronic computer as you do. A. had known B. would know C. should k now D. knew 8. If it ___ rain, we ___ get wet. A. is to, should B. were to, would C. were going to, would D. was going to, should 9. If he ___ to the teacher attentively, he ___ the answer to the problem now. A. had lis tened, would have known B. listened, would know C. listened, would have known D. had listened, would know 10. ---- I thought you would come back tomorrow. ---- I would if I ___ to attend a meeting. A. don’t have B. didn’t have C. will not have D. would not have 11. If I had hurried, I ___ the train. A. would catch B. could catch C. would have caught D. had caught 12. If I had known that, I ___ so. A. wouldn’t do B. wouldn’t have done C. won’t do D. have not done 13. If I ___ you, I wouldn’t return the call. A. be B. am C. was D. we re 14. If the doctor had been available, the child ___. 教育是一项良心工程 1
虚拟语气用法 英语中的语气分为陈述语气、祈使语气、虚拟语气、疑问语气和感叹语气五类。 1、表示动作或状态是客观存在的、确定的或符合事实的，用于陈述句、疑问句和某些感叹句中。 China is an Asian country. (肯定句) How interesting my stay in China has been! (感叹句) 2、祈使句表示说话人对对方的请求、警告，建议或命令。如: Please come over here. 请到这边来。 Watch your steps! 当心!(走路) 3、虚拟语气表示说话者做出的假设而非事实，或难以实现的情况，甚至表达彻底相反的概念。此外，如需表达主观愿望或某种强烈的感情时，也可用虚拟语气。虚拟语气是由句中的谓语动词的特殊形式表示出来的。如: If I were a bird，I would be able to fly in the air. 如果我是一只小鸟，我就能在空中飞行。 I wish I could pass the examination. 我希望我能通过考试。
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。 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。 4、有时，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。 If I had worked hard at school, I would be an engineer, too.如果我在学校学习刻苦的话，我现在也会成为一个工程师了 If they had informed us, we would not come here now. 如果他们通知过我们的话，我们现在就不会来这里了。 ②从句的动作与现在事实相反，而主句的动作与过去事实不符。 If he were free today, we would have sent him to Beijing. 如果他今天有空的话，我们会已经派他去北京了。 If he knew her, he would have greeted her. 要是他认识她的话，他肯定会去问候她了。 5、当虚拟条件句的谓语动词含有were, should, had时，if可以省略，这时条件从句要用倒装语序，即把were, should, had等词置于句首，这种多用于书面语。 Should he agree to go there, we would send him there.要是他答应去的话，我们就派他去。 Were she here, she would agree with us.如果她在这儿的话，她会同意我们的。 Had he learnt about computers, we would have hired him to work here. 如果他懂一些电脑知识的话，我们已经聘用他来这里工作了。 【注意】 若条件从句为否定句，否定词not应置于主语之后，而不能与were，should，had 等缩略成Weren't，Shouldn't，Hadn't而置于句首。 Had it not been for the bad weather we would have arrived on time. 若不是天气坏，我们就准时到达了。 ②有时省略if后提前的had不是助动词: Had I time，I would come. 假若我有时间，我会来的。(=If I had time…) 6、非真实条件句中的条件从句有时不表达出来，暗含在副词、介词短语、上下文或其他方式表示出来，这种句子叫做含蓄条件句。 ①将条件会暗含在介词短语中，如without…, but for…,otherwise（要不是因为）等 But for his help, we would be working now. (要不是他的帮助，我们还会在工作呢。
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 yｏｕwith ｔhisｗork.如果我有时间会帮助你做此工作的。 (２)、Iｆtimｅperｍiｔs，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 UnrｅaｌCoｎditiｏn):当假设是不大可能实现时，就是虚拟条件句。例如: ⑴、ＩfＩｗｅrｅyou ,I woｕｌd haｖe ａttenｄｅd th e meｅtiｎｇ．如果我是你的话，就去参加会议了。?⑵、I f ｈe had come ｈeｒe yesterday, ｈｅwouｌd haｖe sｅen ｈis ｏlｄfriｅnd.假如他昨天来这儿的话,就会看见他的老朋友。?⑴、If iｔｈaｄrained yｅsｔerday, we would hａve stayｅｄaｔｈｏme．(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。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 ｈeｒyestｅrdａy，Ｉｗoｕlｄhave seen hiｍ. ⑵、Ｉf Ｉwｅｒe a teaｃhｅr, I ｗｏｕｌd bｅｓtrｉct wｉth my studenｔｓ. ⑶、Ｉｆit ｓhouｌd snow ｔomorｒow,ｔheｙcoulｄn't g o out. 4、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
虚拟语气（the subjunctive mood）用法归纳 第一部分：语气的定义和种类 1、语气(mood) 语气是动词的一种形式，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 ⑴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。如： ①There are two sides to every question. 每个问题都有两个方面。 ②Were you busy all day yesterday? 昨天一整天你都很忙吗？ ③How good a teacher she is! 她是多好的一位老师啊！ ⑵祈使语气：表示说话人对对方的请求或命令。如： ①Never be late again! 再也不要迟到了。 ②Don’t forget to turn off the light. 别忘了关灯。 ⑶虚拟语气：表示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。如： ①If I were a bird, I could fly in the air. 如果我是一只小鸟，我就能在空中飞行。 ②I wish I could pass the examination. 我希望我能通过考试。 ③May you succeed! 祝您成功！ 第二部分：简单句中的虚拟语气 一、情态动词的过去式用于现在时态时，表示说话人的谦虚、客气、有礼貌、或委婉的语气， 常用于日常会话中。如： ⑴Would you be kind enough to show me the way to the post office? 请你告诉我去邮局的路好吗？ ⑵It would be better for you not to stay up too late. 你最好别熬夜到很晚。 二、表祝愿。 1、常用“may+动词原形”表示祝愿，但愿，may须置于句首（多用于正式文体中）。如： ⑴May good luck be yours! 祝你好运！ ⑵May you be happy! 祝你快乐！ ⑶May you do even better! 祝你取得更大成就！ ⑷May you have a good time. 祝愿你玩的痛快。 ⑸May the friendship between us last long. 祝愿我们的友情天长地久。 ⑹May you be happy. 祝你幸福。 【注意】本句型属于部分倒装句型，主语后用动词原形。 2、用动词原形。如： ⑴Long live the people! 人民万岁！ ⑵“God bless you,” said the priest. 牧师说：“愿上帝保佑你！” ⑶Have a good journey! 祝愿你旅途愉快！ 三、表示强烈愿望。（该类型虚拟语气谓语仅用动词原形，第三人称单数也不加“s”） ⑴God save me. ⑵Heaven help us. 四、表命令。 1. 命令虚拟语气只能用在第二人称(you)，而且通常省略主语(也就是you)。