●虚拟语气的使用范围及判断
一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。也可用于主语从句、表语从句、宾语从句等。
二 if 条件状语从句中虚拟语气的判断
If 条件状语从句有真实条件句和非真实条件句。假设条件可以实现的句子为真实条件句（如在阴天说if it rains, we would not go out），反之为非真实条件句，要用虚拟语气。
三假设条件一般为：
1）与过去事实相反，从句谓语动词用过去完成时，主句动词为情态动词＋完成时态。
e.g. If I had come here yesterday, I would have seen him.
2）与现在事实相反，从句谓语动词用一般过去时，主句动词为情态动词＋动词原形。
e.g. If I were a teacher, I would be strict with my students.
3）与将来事实可能相反，从句谓语动词用过去将来时，主句动词为情态动词＋动词原形。
e.g. If it should snow tomorrow, they couldn’t go out.
主句谓语动词为情态动词（should, would, could）＋和相应的从句一致的动词形式。
四 if 条件句中如果有were, should, had, 可以省去if, 并使用倒装句序。
●宾语从句中的虚拟语气
一 wish后面宾语从句中的虚拟语气：根据从句的意义来判断：
1．与现在和将来相反的事实，从句谓语动词用过去时态；
e.g. I wish I were a bird.
2．与过去相反的事实，从句谓语动词用过去完成时态。
e.g. I wished he hadn’t done that.
二表示“要求、建议、命令”等动词后面的宾语从句中的虚拟语气从句用“should + 动词原形”构成。而且should 可以省去。用于此结构的动词有：advise, direct, agree, ask, demand, decide, desire, insist, order, prefer, propose, request, suggest等。
e.g. I insisted that he (should) go with them.
He suggest that a meeting (should) be held to discuss the matter. He demanded that I (should) help him.
注意：当insist 表示“坚持认为”、suggest表示“表明，显示”时，不用虚拟语气。
e.g. He insisted that he was honest.
The look on his face suggested that he was quite satisfied with what
I had done for him.
三 would rather + 从句
在这种结构中，从句的谓语动词用过去形式表示虚拟。
e.g. I would rather you did this instead of me.
主语从句中的虚拟语气
一 It be + 形容词+ that…. (should)….
用于该句型的形容词有： necessary, good, important, right, wrong, better, natural, proper, funny, strange, surprising, etc.
e.g. It is necessary that we should get everything ready by the end of the week.
It’s natural that he should feel hurt.
一些名词也可用于此结构中，如 a pity, no wonder, …..
二 It be + 过去分词＋that……(should)……
用于该结构中的过去分词是表示“建议、请求、命令”等词的过去分词。如：desired, suggested, requested, ordered, proposed等。
e.g. It is desired that the building of the house be completed next month. 三It is time (about time/ high time) that…..(过去时动词
虚拟语气虚拟条件句的倒装
虚拟条件句的从句部分含有were， should，或had 时，可省略if，再把were，should或had 移到从句的句首，实行倒装。例如：
Were they here now， they could help us. =If they were here now， they could help us.他们现在在的话，就会帮助我们了。
Had you come earlier，you would have met him. =If you had come earlier，you would have met him.你来得早一点，就碰到他了。
Should it rain， the crops would be saved. =Were it to rain， the crops would be saved.假如下雨，庄稼就有救了。
注意：在虚拟语气的从句中，动词'be'的过去时态一律用"were"，不用was，
即在从句中be用were代替。例如：
If I were you， I would go to look for him. 如果我是你，就会去找他。
If he were here，everything would be all right. 如果他在这儿，一切都会好的。
典型例题
_____ to do the work， I should do it some other day.
A. If were I
B. I were
C. Were I
D. Was I
答案C. 在虚拟条件状语中如果有were， should，had这三个词，通常将if 省略，主语提前，变成were， should， had +主语的形式。但要注意，在虚拟条件状语从句中，省略连词的倒装形式的句首不能用动词的缩略形式。如我们可说 Were I not to do，而不能说 Weren't I to do.
We are all for your proposal that the discussion should be put off(推迟)
六、名词从句虚拟语气
(1) ask, advise, beg, command, demand, decide, desire, insist, order, prefer, propose, require, recommend, request, suggest, urge等表示命令、要求、建议等含义的动词后的宾语从句中，谓语动词用(should)+动词原形, eg. I suggest / suggested that we (should) go tomorrow.名词从句虚拟语气
(2) It is +(形容词/过去分词/特定名
词)+that的从句中，形容词主要是表示令
人吃惊的、重要的、必要的、关键的等词汇。形容词：astonishing, amazing, advisable, appropriate, crucial,
desirable, essential, important, imperative, keen, necessary, natural, normal, odd, proper, preferable, strange, sorry, shocked, surprising, urgent, unusual, vital等。名词从句虚拟语气
(3) 过去分词：decided, desired, demanded, ordered, requested, recommended, suggested等;名词：advice, decision, desire, demand, suggestion, motion, pray, resolution, wish, preference, proposal, recommendation, requirement, idea, order等
虚拟语气练习题2（填空） 1.I enjoyed the movie very much. I wish I _______________(enjoy) the book from which it was made. 2.You are late. If you _______________(come) a few minutes earlier, you ______________(meet) him. 3.The two students talked as if they _____________(be) friends for years. 4.It is important that I _____________(be) with Mr. Williams immediately. 5.He looked as if he ______________(be) ill for a long time. 6.If the doctor had come earlier, the poor child would not ____________________there for two hours. 7.I wish that I ____________(go) with you last night. 9.I can’t stand him. He always talks as though he _______________(know) everything. 10.______________ the fog, we should have reached our school. 11.If you had told me in advance, I ______________(meet) him at the airport. 12.Mike can take his car apart and put it back together again. I certainly wish he_____________(teach) me how. 13.I would have told him the answer had it been possible, but I _____________(be) so busy then. 14.He’s working hard for fear that he ________________(fall) behind. 15.If it ______________ (rain) another ten minutes, the game would have been called off. 16.He suggested that they _______________ use a trick instead of fighting. 17.My father did not go to New York; the doctor suggested that he _______________(go) there. 18.I would have gone to the meeting if I _______________(have) time. 20.You look so tired tonight. It is time you __________________(go) to sleep. 21.—Why didn’t you buy a new car?—I would have bought one if I ____________(have) enough money. 23._________ he leave today, he would get there by Friday. 24.His doctor suggested that he _______________(take) a short trip abroad. 25.The Bakers arriv ed last night. If they’d only let us know earlier,we _______________(meet) him at the station. 26.If I ________ (be) you, I ___________________ (pay) more attention to English idioms and phrases. 27.We might have failed if you ________________ (give) us a helping hand. 28.The law requires that everyone ______________(have) his car checked at least once a year. 29.It is strange that he ______________(speak) so. 31.He has just arrived, but he talks as if he ______________(know) all about that. 32.If I _____________(possess) the money, I would have bought a much bigger car. 33.He was very busy yesterday; otherwise, he _________________(come) to the meeting. 34.The librarian insists that John _____________(take) no more books from the library before he returns all the books he has borrowed. 35.I left very early last night, but I wish I ______________(leave) so early. 36.I do not have a job. I would find one but I _____________(have) no time. 37.I wish that you ________________(have) such a b ad headache because I’m sure that you would have enjoyed the concert. 38.He insisted that we all __________(be) in his office at one o’clock. 39.Helen couldn’t go to France after all. That’s too bad. I’m sure she would have enjoyed it if she ___________(go). 40.I must go there earlier. John has suggested that I _______________(go) an hour before the discussion begins. 倒装句练习 1.Not until I began to work ________ I ___________(realize) how much time I had wasted. 2.Only by practising a few hours every day _______ you be able to master the language. 3.If you don't go，neither ____. 4.No sooner ______ I ______ (go) to the station ________ the train left. 5. —— Your father is very strict with you. So ________. He never lets off a single mistake of ours. 6. ______ he __________(leave) today，he would get there by Sunday.
2020年高考英语写作新题型备考技巧 专题（八）强调倒装虚拟句型+丰富文章细节的手段 特殊句型是英语书面表达中的高级句式，其中强调句和倒装句是较为常见的特殊句型。而虚拟语气也是高中较难掌握的句型之一。它们的准确使用能够彰显考生的英语水平，提高写作档次。 一．重点突出的强调句型 （一）强调句的基本句式结构为：It is/was + 被强调部分+ that/who + 句子其他成分。它可以强调除谓语动词外的其它任何成分，如主语、宾语、状语等。在续写和概写中灵活运用强调句不仅能突出重点、增强表达，更能彰显考生的英语运用能力。 It is just the so-called inconvenience that displays the richness, delicacy and great fascination of Chinese culture with a history of thousands of years. (2019年浙江高考书面表达) 在写作中运用强调句型可以采取以下步骤： 1.在一个写好的句子中找出需要强调的成分，如主语、宾语、状语等； 2.根据句子的时态确定is或was； 3.然后把要强调的成分套进句式里，It is/was + 被强调部分+ that/who + 句子其他成分。 例：We created a harmonious atmosphere with sincerity and faithfulness. 如果我们要强调状语，即with sincerity and faithfulness，在确定好时态was后，把需要强调的部分放在it was后，that后放除强调外的剩余成分便得到： It was with sincerity and faithfulness that we created a harmonious atmosphere. （二）强调句常用句式 1. It is/was + 被强调的部分+ that/who + 句子其它成分 It is on the playground this Friday afternoon that a volleyball game will be held. (2019全国一卷书面 表达) It was because of their help that a disaster was avoided. (2017年浙江高考书面表达) 2. Is/was it + 被强调的部分+ that/who + 句子其它成分 Was it in the park that the children saw the strange green objects? 3.特殊疑问词+ is/was it + 被强调的部分+ 句子其它成分 When was it that you made up your mind to work as a volunteer teacher? 4.It is/was not until that + 句子其它成分
Subjunctive mood (1) Nevertheless, should a fight follow, neither creature will be badly hurt, for the loser will save himself by making a gesture of submission. (Line 5) (2) If it had not had this disability it would have undoubtedly stayed in the jungle and hunted for food in the customary way. (Line12) If the human population had not increased so rapidly, people would have had more space and freedom. (Line 23) (3) If the caged lion, for example, were free to wander on the grassy plains of Africa, it would be continually active, ranging over long distances, hunting in family groups. (Line 15) 此三类句子体现了虚拟语气的三种时态变化。 （1）第1句中“should a fight follow”是表示将来情况的虚拟语气，意思为“if a fight should follow”，句中省略了“if”，将“should”提前，构成倒装，表示“万一，一旦”的意思。值得注意的是本句中的主句部分未使用虚拟语气。 (2) 第二部分这两句是与过去事实相反的虚拟语气。这类句子，从句用“had +动词过去分词”，主句用“would/should/could/might + have + 动词过去分词”。 (3) 第3句是与现在事实相反的虚拟语气。从句用“did/were”，主句用“would/should/could/ might + 动词原型”。 虚拟语气专项复习： A．虚拟语气在非真实条件状语从句中的用法 1、表示与现在事实相反的情况： if+主语+过去时+其他+主语+should/would/could/might+do+其他 例：If I were you, I would take an umbrella.如果我是你，我会带把伞。 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。 If there were no air or water, there would be no living things on the earth. 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：没带钱）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：学习不用功）2、表示与过去事实相反的情况 if+主语+had done +其他+主语+should/would/could/might+have done+其他 例：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。 If he had taken my advice, he would not have made such a mistake. 3、表示对将来情况的主观推测 ①if+主语+did/should/were to do+sth.+主语+should/would/could/might+do+其他 ② if+主语+did/be(were)+sth.+主语+should/would/could/might+do+其他 ③if+主语+should+do+sth.+主语+should/would/could/might+do+其他 例：If he should come here tomorrow, I should/would talk to him. 如果他哪天来这儿的话，我就跟他谈谈。 If there were a heavy snow next Sunday, we would not go skating. If she were to be there next Monday, I would tell her about the matter. 4、有时，虚拟条件句中，结果主句和条件从句的谓语动作不是同时发生时， 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。 如：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
倒装句练习 1. So fast_______ that it is difficult for us to imagine its speed. A. light travel B. does light travel C. travels light D. has light travelled 2.That scientist isn’t too happy with the project, and______________. A. so are her supervisors B. either are her supervisors C. neither are her supervisors D. so her supervisors are 3.______ the door than somebody started knocking on it. A. I had closed no sooner B. I had no sooner closed C. No sooner have I closed D. No sooner I closed 4.Is this beautiful? Yes, it is. ________. A. Rarely before have I seen this B. Rarely I have seen this before
C. Rarely have I seen before this D. Rarely have I seen this before 5._____but he also proved himself a good athlete. A. He showed himself not only a good student B. Not only did he show himself a good student C. He showed not only himself a good student D. Not only he showed himself a good student 6.Nowhere else along the coast____ such shallow water so far from land. A. is there B. there is C. it is D. is 7._____did we try to persuade her to give up her plan. A. In failure B. With no result C. In vain D. With no end 8.______I couldn’t lift the box. A. As I might try
当我们陈述了一个事实，而又不是很有把握，就可以在陈述句后加一个简短问句，称为反意疑问句。首先看以下例句：（1） You like calssical music, don't you? 你也喜欢古典音乐，对吗？(2 He lived in Vienna, too,didn't he? 他也住在维也纳，对吗？（3）Your parents can swim, can't they? 你父母会游泳，是吗？（4） Tony doesn't like classical music,does he? 托尼不喜欢古典音乐，对吗？（5） This music isn't very popular, is it? 这音乐并非十分流行，对吗？从以上句子可以看出，反意疑问句是由“助动词/ 系动词be（肯定或否定）+主语（代词）” 构成的。在反意疑问句的构成中要注意以下几点： 1.前面当陈述句如果是肯定的，反意疑问句就要用否定形式，如（1）、（2）、（3）；前面的陈述句如果是否定的，反意疑问句就要用肯定形式，如（4）、（5）； 2.反意疑问句的主语必须是代替前面主语的代词； 3.翻译疑问句的谓语动词在时态和人称上要与前面陈述句谓语动词保持一致。陈述句部分如果有标识否定意义的词，反意疑问句要用肯定式。如：They have never visited his home, have they? 他们从来没有到他家玩过，是吧？在回答反意疑问句时，要特别注意英、汉两种语言习惯的差别。试看下面当例句：——Mr Smith isn't American, is he? 史密斯先生不是美国人，对吧？——Oh yes, he is.不对，他是美国人。可以看出，在英语中，无论问题是怎样问的，只要答语的事实是肯定句，就要用YES；只要答语的事实是否定的，就要用NO. 编辑本段英语18种特殊的反意疑问句介绍 1.祈使句。祈使句后一般加上will you或won't you构成反意疑问句，用will you 多表示“请求”，用won't you 多表示提醒对方注意。例如：Look at the blackboard, will you/ won't you?看黑板，好吗？Let引导的祈使句有两种情况：1Let's...,后的反意疑问句用shall we或shan't we。例如：Let's go home, shall we/ shan't we? 回家吧，好吗？还可以用may I来表示征求对方的同意或许可。2Let us/me...后的反意疑问句用will you或won't you。例如： Let me have a try, will you/won't you? 让我试一试，行吗？ 2.感叹句。感叹句后加反意疑问句时，其反意疑问句需用be的一般现在时态的否定形式。例如：What fine weather, isn't it? 多好的天气啊，是吧？ 3. 当陈述部分谓语动词是need, dare, used to，且这些词被用作实义动词时，其反意疑问句需用do的适当形
二、虚拟语气的判断： 1. if 条件状语从句中虚拟语气的判断。if 条件状语从句有真实条件句和非真实条件句。假设条件可以实现的句子为真实条件句，反之为非真实条件句，要用虚拟语气。其形式分为以下三种： (1) 与过去事实相反的假设。结构为：从句的谓语动词用“had + 过去分词”，主句用“should (would, could, might) + have + 过去分词”。例如： If it had not rained so hard yesterday, we could have played tennis. 如果昨天没有下大雨，我们就能玩网球了。 (2) 与现在事实相反的假设。结构为：从句的谓语动词用过去式，系动词用were，主句的谓语用“should (would, could, might) + 动词原形”。例如： If I were in your position, I would marry her. 如果我是你，我就娶她为妻。 (3) 与将来事实相反的假设。结构为：从句的谓语动词用“should (were to) + 动词原形”，主句用“should (would, could, might) + 动词原形”。例如： If you should miss the chance, you would feel sorry for it. 如果你错过了这次机会，你会难过的。 2. 宾语从句中的虚拟语气。 (1) wish后接宾语从句中的虚拟语气：根据从句的意义来判断。 A: 表示与现在和将来事实相反的愿望，从句谓语动词用过去时态。例如： I wish they were not so late. 要是他们来得不是这么晚就好了。 B: 表示与过去事实相反的愿望，从句谓语动词用过去完成时态。例如： I wished he hadn't done that. 我真希望那件事不是他做的。 (2) 表示“要求、建议、命令”等动词后面的宾语从句中的虚拟语气。用于此结构的动词有：advise, direct, agree, ask, demand, decide, desire, insist, order, prefer, propose, request, suggest 等。从句的谓语动词用“should + 动词原形”，其中should 可以省去。例如： I insisted that he (should) go with us. 我坚持让他和我们一起去。 注意：当insist 表示“坚持认为”、suggest表示“表明，显示”时，不用虚拟语气。例如：
语法 一、虚拟语气 Ⅰ.suggest；require； order； recommand； insist sb.suggest that …（should）do His suggestion is that… What do you think of his suggestion that 注：suggest,insist表明、暗示 He insisted that he hadn’t made a mistake. Ⅱ.wish 1)对现在的虚拟，用一般现在时 How I wish I were you ! 2)对过去虚拟，用过去完成时 How I wish I had followed your advice. 3)对将来虚拟 could+v.原形 How I wish /If only I could fly in the sky Ⅲ.It is (high)time that…should (should 不可省) It is necessary that… I would rather that… Ⅳ.隐含虚拟 But ;but for ;without ;otherwise without后一般+n. Eg:I could have come to school on time,(but I got up late).=I got up late otherwise. Ⅴ.虚拟条件句 If it didn’t rain tomorrow If it shouldn’t(只能用should) rain tomorrow. If it weren’t to rain tomorrow Were it not to rain tomorrow…/Should it not to… Were I you,… 从句都往过去推一个时态 Ⅵ.时间错纵 If she hadn’t stayed up all night studying,She would feel energetic now .
虚拟语气中的含蓄条件句常见用法 先看一道高考题： ____ more attention，the trees could have grown better． A．Given B．To give C．Giving D．Having given （答案是A） 句中"．．．the trees could have grown better"是一个表达虚拟语气的句子。题中要求选择的是如何表达假设条件的形式。如果我们把这个句子用另一种形式"If they had been given more attentio n ，the trees could have grown better．"来表示，就不难理解了。很多情况下，在表示假设的虚拟语气中，有时假设的条件并不以条件从句的形式表达，而是通过上下文或句中内在的逻辑关系，或用其它形式表达出来，我们称之为"含蓄条件句"。 含蓄条件句主要通过名词、连接词、不定式、分词、动名词短语、介词短语及分句来暗示。这些表达形式在句中实际起着虚拟条件从句的作用。现分述如下： 一、介词短语 常用来表示虚拟条件的介词有with，without，in，under，but for等等，它们表示的虚拟条件都可以被if从句替换。 （1）without，with without表示否定的条件，意为if．．．not；with与without意义相反，表示肯定的条件。如：Without air，there would be no living things．（without air ＝if there were no air）没有空气，便没有生物。 With her help（＝If I had her help），I would do the experiment well．假如有她帮助，我就可以把这个实验做好。 （2）under Under the leadership of a less experienced person，the experiment would have failed．（u nder．．．＝If there had been the leadership of a less experienced person）假设在一个缺少经验的人领导下进行实验，实验准会失败。 （3）in I would have lost my head in that position．（in that position ＝if I had been in that po sition）我处在那种情况下，是会丧失理智的。 （4）but for
虚拟语气翻译练习 1．假如你得了一万美金，必须在一天内花掉，你会怎么做呢？ 2．如果我是她，我宁愿死了也不嫁给他。 3．假如没有电，生活会是什么样子呢？ 4．昨晚如果她来了，问题就解决了。 5．即使你告诉了我她是谁，我也认不出她来。 6．假如当初他接受运动员的训练，早就闻名世界了。 7．如果明天不考试，我就和你一起去看电影。 8．如果湛江下雪，那可是新闻头条啊。 9．如果你没有背叛过我，也许我们现在还是很好的朋友。 10．如果你将来嫁有钱人，那我都成百万富翁了。 11．要不是英语考试，上周六我就去听音乐会了。 12．难道你不该开始认真对待生活了吗？ 13．你很自私，你的该意识到自己并不是世界上最重要的人。 答案： 1.If you had ten thousand dallors,what would you do if you had to spend it in a day? 2.If I were you, I would die rather than marrying him. 3.If we had no electricity, what life would be? 4.If he had come yesterday, the problems might have been solved. 5.I should not have recognized her even if you had told me her name. 6.If he had been trained as an athlete, he would have been word famous long ago. 7.If we shouldn’t take the exam tomorrow, I would go with you to the movie. 8.If it were to snow in Zhanjing, it would be the headline of the newspaper. 9.If you hadn’t turned your back on me( betrayed me), we were still friends maybe. 10.If you should marry a rich man in future, I would be a millionior. 11.But for the Enlish examination, I would have gone to the concert last Saturday. 12.Isn’t it about time you started taking life seriously? 13.You’re selfish. It’s high time you realized that you are not the most important person in the world.
虚拟语气用法 虚拟语气用法
概念
虚拟语气用来表示说话人的主观愿望或假想， 而不表示客观存在的事实， 所说的是一个条件， 不一定是事实，或与事实相反。虚拟语气通过谓语动词的特殊形式来表示。英语中的语气分 为陈述语气、祈使语气、虚拟语气三类。
应用条件
在表示虚假的、与事实相反的或难以实现的情况时用虚拟语气，表示主观愿望或 某种强烈情感时，也用虚拟语气。即当一个人说话时欲强调其所说的话是基于自己的 主观想法，而不是根据客观实际，就用虚拟语气。
在非真实条件状语从句中的用法
真实条件状语从句与非真实条件状语从句
条件句可分为两类，一类为真实条件句，一类为非真实条件句。非真实条件句表 示的是假设或实际可能性不大的情况，故采用虚拟语气。 例： 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) 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） If I were you, I would go at once. 如果我是你， 我马上就会去。（非真实， 虚拟语气） If there were no air, people would die. 如果没有空气，人就会死亡。 （非真实，虚拟语气）
用法及动词形式
从句
If+主语 +did If+ 主语+did 主语 were） （ be 动词 were ）
主句
与现在事实相反
主语+should/would/ 主语 +should/would/ could/might+do
语法系列复习专题十-----虚拟语气、倒装句型 虚拟语气 虚拟语气是通过特殊的谓语动词形式来表达的愿望、假设、怀疑、猜测或建议等语气，它不表示客观存在。 一、虚拟语气在单句中的用法 常用来表示祝愿、采用固定的倒装句式。例如： Long live the People s Republic of China!中华人民共和国万岁！ be happy! 快乐！ have a good time! 玩得愉快！ May you 祝你 succeed! 成功！ make progress! 进步！ 二、虚拟语气在复合句中的用法： 1．在非真实性条件句和主句中的用法 条件从句主句 一般过去时（be多用于were）would/should/could/might＋动词原形 如果我是你，我会接受邀请的。 If I had time,I would go there. 如果我有空，我就去那儿。 条件从句主句 过去完成时would/should/could/might＋have done 如果你早点来，你就不会错过那辆公共汽车了。 If he had seen you yesterday,he would have returned your book. 如果他昨天见到了你，他就会还你的书的。 条件从句主句 一般过去时（be多用were） would/should/could/might＋动词原形 should do,were to do put off.万一明天下雨，运动会就推迟。（事实上明天下雨的可能性不大。） If you dropped/should drop/were to drop the glass,it would break. 万一杯子掉下来会打碎的。 4）i f的省略 如果条件句中有were,had,should 等助动词，可将if省略，而把were,had或should 置于句首,来表达以if引导的条件句的相同意思。 例如：Should it rain/were it to rain tomorrow,the sports meet would be put off./Had he seen you yesterday,he would have returned your book. 5)条件句或主句的省略 当有上下文或上下句中的语言环境暗示的时候，表示虚拟语气的从句或主句往往可以省略，以避免重复。 例如：——Why didn t you attend the party yesterday? ——I would/should have,but I was too busy then. I was surprised that you didn t like this job.You could have done it better.（后面省略了if you had liked it.） 6)混合时间条件句和主句 条件句和主句的动作发生的时间有先后之差，应按各自动作时间搭配好相应的结构形式。 例如：If the teacher hadn t been ill yesterday,who could give us a lecture now?/If you had
高中英语虚拟语气的用法 一、考查虚拟语气在条件从句中的用法 时间从句谓语形式（be用were不可改变）主句谓语形式 将来一般过去时(be用were) would/should/might/could+动词原形 现在一般过去时(be用were) would/should/might/could+动词原形 过去现在完成时would/should/might/could+had done （1）If he my advice, he wouldn' t have lost his job. A. followed B. should follow C. had followed D. would follow （2）If we the other road, we might have arrived here in time for the meeting. A. taken B. had taken C. took D. have taken （3） -John went to the hospital alone. -If he me about it, I would have gone with him. A. should tell B. tells C. told D. had told 二、考查特殊句型中的虚拟语气 英语中需要使用虚拟语气的特殊句型不多，主理有以下类: 1.“倒装”类虚拟语气 当虚拟条件句中含有were, should, had时,有时可将引导虚拟条件句的连词if省略,而将从句中的were,should, had提到句首,构成倒装形式的虚拟语气。如: If he were here, she would agree too.→Were she here, she would agree too.如果她在这里,她也同意的。. If it should rain tomorrow, we should have to put off the match. →Should it rain tomorrow, we should have to put off the match.假若明天下雨,我们只好推迟这场比赛。 If we had found him earlier we could have saved his life.→Had we found him earlier we could have saved his life. 要是我们当时早点找到他的话,我们就可以救活他。 注意,如果条件从句的谓语为否定式,其中的否定词not应置于主语之后,而不能与were,should, had等缩略成Weren' t, Shouldn' t, Hadn'场置于句首。如:我如不是警告了你,你就可能丧命了。 正: If I hadn' t warned you, you could have been killed. 正: Had I not warned you, you could have been killed. 误: Hadn' t I warned you, you could have been killed. 另外,有时省略if后提前到句首的had可能不是助动词,而是实义动词。 如: Had I time, I would go with you.假如我有时间,我就同你们一起去。句中的had不是构成过去完成时的助动词,而是表示“有”,如果不省略if ,完整形式为:If I had time, I would go with you. (1) Had I known about this computer program, a huge amount of time and energy____. (2010浙江卷) A.would have been saved B. had been saved C. will be saved D. was saved （2） fired, your health care and other benefits will not be immediately cut off. (2006湖北） A. Would you be B. Should you be C. Could you be D. Might you be 2.“宁愿”类虚拟语气 这里说的“宁愿”主要是指would rather。当它后接句子的时候,句子的谓语通常要用虚
be-型虚拟式的主要用法如下。 用于表示命令、决定、建议等词语之后的that-分句中 be-型虚拟式的这一用法又有以下三种情况: a)用在decide, decree, demand, insist,moveorder,prefer,propose,recommend,request,require,suggest,vote等动词之后的that分句中。例如: He ordered that all the books be sent at once、 We propose that somebody neutral take the chair(担任主席)。 She insisted that she go to the south for her holiday、 Congress has decided /voted/ decreed that the present law be maintained、 The doctor insisted that he not eat meat、 b)用在decision, decree, demand, Instruction, order, requirement, resolution等名词之后的that-分句中。例如: The board(理事会) has given instructions that the agent fly to Boston、 We were faced with the demand that this tax be abolished、 Your advice that she wait till next week is reasonable、 Their decision was that the school remain closed、 His order that the troops not be sent at once was carried out、 在这一用法中be-型虚拟式能与“should +不定式”交替使用,也能与不定式被动语态交替使用。例如: He ordered that the books be sent at once、 =He ordered that books should be sent at once、 =He ordered the books to be sent at once、 It is important that she be placed in an appropriate job、 =It is important that she should be placed in an appropriate job、 =It is important for her to be placed in an appropriate job、 be-型虚拟式能用于由if, though, whatever, lest, so long as等引导的分句中表示推测、让步、防备等含义。例如: If he be found guilty, John shall have the tight of appeal、 If the rumour be true, everything is possible、 Though everyone desert you, I will not Whatever be his defense, we cannot tolerate this disloyalty、 So long as a volume hold together, I am not disturbed as to its outer appearance、 Whether she be right or wrong, she will have my unswerving support、 Quietly we sat on the river bank lest the fish swim away、 上述用法现在只限于正式书面语体,在非正式语体中通常用动词陈述式或者用should/may+不定式。例如: If the rumour is true, everything is possible、 He hid himself in the bush lest he should be seen、 Whatever his defense may be, we can\'t tolerate this disloyalty、 用于某些公式化的语句中 be-型虚拟式用于某些公式化语句中可表示祝愿、诅咒、禁止等意义。例如: Long live the People\'s Republic of China! God bless you! Heaven forbid!(天理不容) Devil take him!(混蛋) So be it、(但愿如此/就这样吧。) Suffice it to say that、、、(只需说……就够了。) Far be it from me to(我极不愿) spoil the fun、