全部虚拟语气：6大时态型虚拟与should型虚拟
that he _____(wait) a while before we make any decisions Are you suggesting that I _____(be) fat in these trousers
It was a pity that you _______________________________(be) so
你竟然知道所有的
虚拟语气详解(自用版)
虚拟语气详解（自用版） 虚拟语气是一项语法难点，为了让学员们便于理解与记忆，我们把虚拟语气分成三大块来讨论： 1．名词从句中的虚拟语气标志词+should+动词原形 2．条件从句中的虚拟语气①三种基本态②倒装虚拟句③混时虚拟句④含蓄虚拟句⑤跳层虚拟句 3．其它情形中的虚拟语气（wish/would rather/It’s high time…/If only…/lest） 一．三种基本形态（1） 表虚拟的时间if从句谓语形式主句谓语形式 现在：did / were would (should, might, could)+do 过去：had done/ had been would (should/might/could)+have done(been) 将来：were to/ should+do would (should, might, could)+do 三种基本形态（2）（这是基础，建议牢记下面的例句，争取能脱口而出） 与现在事实相反：If I had enough money, I would buy a book. 与过去事实相反：If I had had enough money, I would have bought a book. 与将来事实相反：If I were to have enough money, I would buy a book. If I should have enough money, I would buy a book. 二、倒装虚拟句（只能与过去/将来事实相反，省去if，只有三种倒装形式） Had I had enough money, I would have bought a book. Were I to have enough money, I would buy a book. Should I have enough money, I would buy a book. 三、混合时间虚拟语气（主要是抓住时间状语） (对过去事实虚拟+对现在事实虚拟) If I had studied English at school, I could read the English novel now. (对现在事实虚拟+对过去事实虚拟) If she were not so careless, she wouldn’t have made such a mistake. 四、含蓄虚拟句（在四级考试中目前还未出现此考点，但在阅读中常见） 3. 虚拟语气用在主语从句中。在句型“It is important (necessar y, strange, natural等) that...” 中，that 后面的从句中的谓语动词用(should) + 动词原形。 It's necessary that we should have a walk now. 我们现在有必要出去散散步。 What would I have done without you? But for their help, I would not have finished the task. But that the doctor arrived on time that day, they would have been dead.
英语虚拟语气语法归纳总结
虚拟语气: 表示说的话不是事实，不可能发生或者说可能性很小的情况，表达一种愿望、建议、假设。 if were/did, would do if had done, would have done if were to do/should do, would do 举例： If I were you, I would do nothing about it. If you had taken your teacher’s advice, you wouldn’t have made such a mistake. If it were to/ should rain tomorrow(表示降水率很低)，they wouldn’t go shopping. 附注： 虚拟语气，条件状从倒装 状语从句中，去掉if,提前were/ had/ should 如：If I were you, I would give up. →Were I you, I would give up If you had taken the advice, you would have…. →Had you taken the advice, you would have… If the world shou ld come to an end,…… →Should the world come to an end…… 另外，without, but for, otherwise构成的条件状语从句中，也有含蓄的虚拟语气But for the popularization of electricity, we would lead a whole different life today. (popularization 普及，publicity 宣传) Without your help, I would have failed. We’ll go earlier, otherwise we wouldn’t get a seat.（表示可能性小）
英语虚拟语气解题技巧及经典题型及练习题(含答案)
英语虚拟语气解题技巧及经典题型及练习题(含答案) 一、初中英语虚拟语气 1． If I you,I buy a bike for him. A．was,would B．was,could C．were,would D．were,could 【答案】C 【解析】 试题分析：句意：如果我是你，我会给他买一辆自行车。buy sth for sb给某人买某物；本句用的是虚拟语气，表示与现在的事实相反，在虚拟语气中不能用was,而用were，因此选C。 考点：考查虚拟语气的用法。 2． If I ____Alice, I _____them the truth. A. was , would tell B. were ,would tell C. am, will tell D．is , will tell 【答案】B 【解析】 试题分析：本题的含义是如果我是你，我将告诉他们真相，本题if引导的是一个虚拟的条件句，在虚拟句中，be用were，主句通常用过去的一种，will应该用would，故本题选B。 考点：if引导的虚拟条件句。 点评：在英文中条件句有两种，一种是真实的条件句，if后遇到将来时用一般现在时，一种是虚拟的条件句，if后用过去时，be用were，在英文的实际使用中应该注意它们的区别。 3．If I you, I the army. A．am, would join B．were, would join C．am, will join D．were, will join 【答案】B 【解析】 试题分析：句意:如果我是你,我会参军.结合语境可知本句是对客观状况的虚拟,故用过去时态,主句用过去将来时态.选B. 考点：if引导的条件状语从句 点评：虚拟语气是一种特殊的动词形式，用来表示说话人所说的话并不是事实，而是一种假设、愿望、怀疑或推测。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。 1、与现在事实相反 若与现在事实相反，条件从句的谓语用过去式（be通常用were），主句谓语用“should （would, could, might）+动词原形”
虚拟语气在从句中用should的情况
虚拟语气在从句中用should的情况 1. 在建议、要求、命令、想法后的动词后的宾语从句里, 用should + 动词原形, should 可以省略. 如advise, agree, command, decide, demand, determine, indicate, insist, order, propose, request, require, suggest, urge. The doctor suggested that she (should) take good care of herself. 2. 在建议,要求,命令,想法后的名词后的从句里, 用should + 动词原形, should可以省略. 如 advice, agreement, command, decision, demand, determination, indication, insistence, order, preference, proposal, request, requirement etc. It was Bill’s suggestion that everyone (s hould) have a map. (主语3. 在It is/was +形容词后that引起的主语从句中用should的结构, should 可以省略。这类形容词常见的有: advisable, anxious, compulsory, crucial, desirable, eager, essential, impossible, improper, important, natural, necessary, obligatory, possible, preferable, probable, recommended, urgent, vital; strange, surprising, unnatural，etc. It's natural that she (should) do so. It is important that we (should) learn English well. 4. 在It’s （about）/（high）time 后的that 从句中, 用过去式, 有时也可用should + do 的形式表示“该是做什么的时候” should不能
虚拟语气和倒装
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
英语虚拟语气类型用法
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：
英语常见虚拟语气最全总结
英语常见虚拟语气最全总结 一、初中英语虚拟语气 1．If I ____ a candle, I would light the world bright. A．am B．are C．be D．were 【答案】D 【解析】 试题分析：句意：如果我是一根蜡烛，我将点亮这个世界。if I were 如果我是…，were虚拟语气，be动词都用were,故选D 考点：if条件句的虚拟语气 点评：if条件句的虚拟语气，是中考要求掌握的知识点，分为三种情况： 表示与现在事实相反的情况，从句谓语动词用一般过去式（be用were），主句谓语动词 用should/would/could/might +do;2.表示与过去的事实相反的情况，从句谓语动词用过去完成时，主句谓语动词用should/would/could/might+have done;3.表将来的事实相反的情况，从句谓语动词用should+动词/did/were to do，主句谓语动词用should/would/could/might +do。 2．If I _______ you, I _______ go there. A．is; will B．is; would C．were; would D．was; will 【答案】C 【解析】本题考查虚拟语气，if引导的与现在事实相反的虚拟语气。从句用一般过去式，主句用过去将来时。句意：如果我是你的话，我会去那儿的。 1.57．---What would you do if you a million dollars? ---If I you, I’d g ive it to medical research. A．got, were B．win, am C．won, am D．get, were 【答案】A 【解析】本题是考查的虚拟语气，对于将来的假设，主句用过去将来时，从句用一般过去时，且be动词为were，故选A 2.58．What _____ you _____ if you had a million dollars? A．would, did B．will, do C．would, do D．will, did 【答案】C 【解析】本题是对于虚拟语气的特殊疑问句的考查，根据句子的结构，选C 3．I suggest that we Chinese people_______Chinese culture with love and joy everywhere we go. A．spread B．spreading C．to spread D．will spread 【答案】A 【解析】 【详解】 句意：我建议我们中国人无论走到哪里都要带着爱心和欢乐来传播中国文化， 考查动词suggest后跟虚拟语气。spread是动词原形；spreading是动名词；to spread是动
高中英语提高之虚拟语气用法
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
高二英语虚拟语气的用法虚拟语气的常见句型------
高二英语虚拟语气的用法虚拟语气的常见 句型 虚拟语气的用法归纳虚拟语气的三种时态 高二英语虚拟语气的用法虚拟语气的常见句型。高中家教班老师整理出知识点，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。紧跟高中家教班老师的步伐哦！ 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. 如果我知道他的电话号码，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
高中英语虚拟语气的用法
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
虚拟语气
英语中的语气分为陈述语气、祈使语气、虚拟语气三类。语气除了用语音或语调去表现外，最主要的是通过动词的变化而表示不同语气。英语中的语气分为三类：现在式{谓语动词用原型（第三人称-s)}；过去式(谓语动词用动词单位过去式)；将来时（谓语动词用will、shall+动词或be going to +v、were to）例如：I am a teacher. He finished his homework. They're going to visit the Great Wall next week. 虚拟语气：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。虚拟语气常在表示条件状语从句中。在表示与事实相反的虚拟语气时动词有三种时态：现在时，过去时，将来时。例如：if you are free, please help me with my homework.(陈述句）If I were free, I would help you with your homework.（虚拟句）通过比较你会发现第二句的动词形式非常特殊"I were""would help", 然而虚拟句正是通过这样的动词变化来达到这样的表达效果：委婉的说出我想帮助你，可我没时间。下面分别介绍虚拟语气在各种句式中的用法。 一. if引导的虚拟条件句 1. 虚拟条件句的标准句 (1)表示与现在事实相反: If I were you, I should stay at home. 如果我是你的话，我该呆在家里。 If the peasants could farm the land themselves, food production would be much higher. 如果这些农民可以自己种田，粮食产量会更高些。 If fewer cash crops were grown, and more food could be produced, then there would be less or no starvation. 如果少种些经济作物，多生产些粮食，那么就会少些或者没有挨饿情况。 (2)表示与过去事实相反: If you had come yesterday, you would have met him. 要是你昨天来的话，你就会遇到他。 If the hurricane had happened during the daytime, there would have been many deaths. 如果飓风在白天发生的话，就不会造成许多人死亡。 (3)表示与将来事实相反: If you came tomorrow, we would have the meeting. 如果你明天来，我们就会开会。 If it were to/should rain tomorrow, the meeting would be put off. 要是明天（万一）有雨，会议就会推迟。 If it should rain, the crops would be saved. 如果天万一下雨的话，这些庄稼还有救。 通过观察我们不难发现if引导的虚拟条件句中主从句动词时态的变化规律如下： 与事实相反 If从句主句 现在were/did would* do 过去had done would* have done 将来should do或were to do would* do （1）上表中“*”，would都可转换为should、could、might。 （2) 如果为时间错综句的话，左右两栏可互相搭配，排列组合。 例句： He would still be alive today if he hadn't taken that drug. (下文) [与现在事实相反] [与过去事实相反] 2. 错综时间虚拟条件句
Should型虚拟语气练习题
Should型虚拟语气练习题 1. 用于if引导的虚拟条件句中 在表示与现在或将来事实相反的非真实条件句中，谓语动词形式可用“should + do”。如：If she should refuse, they could be greatly disappointed. 【考例】This printer is of good quality. If it _______ break down within the first year, we would repair it at our expense. （2009年，天津） A. would B. should C. could D. might 2. 用于省略if的倒装句中 如果条件状语从句的谓语动词中含有should，可以省略连词if，而把should放在主语前构成倒装。如： Should he fail in the examination, he would have to wait for another year. 【考例】______ fired, your health care and other benefits will not be immediately cut off. (2006年，湖北) A. Would you be B. Should you be C. Could you be D. Might you be 3. 用于主语从句中 在“It is ＋形容词／某些动词的过去分词＋that从句”的结构中，从句的谓语动词用“（should）+ do ”虚拟语气形式来表示命令、要求和建议。这些形容词和过去分词常见的有important（重要的）、essential（必要的）、necessary（必须的）、natural（自然的）、decided（决定的）、ordered（命令的）、demanded（要求的）、proposed（建议的）、required （要求的）等。如： It is necessary that we (should) make everything ready ahead of time. 【考例】It is essential that all these figures ________ twice. (2008年，四川联考) A. check B. checked C. are checked D. be checked 4. 用于宾语从句中 表示主观判断、推测、建议、命令和要求的动词后的宾语从句中，谓语动词常采用“（should）+ do”的形式。这类动词包括advise（劝告），ask（要求），insist（坚持），order（下令），suggest（建议），command（命令），demand（要求），require（要求）等。 He insisted that a deadline (should) be set for completing the task. 【考例】The doctor recommended that you ______ swim after eating a large meal.（2009年，浙江） A. wouldn’t B. couldn’t C. needn’t D. shouldn’t 【疑难辨析】动词insist如不表示要求，而表示“坚持己见”时，宾语从句用陈述语气。同样，当suggest所表示的意思为“表明”或“暗示”时，谓语动词也不采用“should + do”的形式。如：Jane insisted that she had done nothing wrong and that she should be treated properly. The surprised look on his face suggested that he did not believe the fact.
谈英语中虚拟语气的用法
连云港育青外国语学校李老师谈英语中虚拟语气的用法 虚拟，在汉语中表示一种假设的，不存在的情况，同样，英语中虚拟语气是用来表示说话人 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。在初中阶段，虚拟语气一般用于下列情况： 一、条件状语从句 1、与现在事实相反 若与现在事实相反，虚拟语气的条件从句的谓语用过去式(be通常用were)，主句谓语用“should (would, could, might)+动词原形”。如： If I were you, I would take an umbrella. 如果我是你，我会带把伞。（事实上我不可能是你） If I knew her number I could ring her up. 要是我知道她的电话号码，我就可以给她打电话了。 (事实上我不知道) 2、与过去事实相反 若与过去事实相反，从句：主语+had done ，主句：主语+should/would/could/might+have done，例如： If I'd left sooner，I'd have been on time. 要是我早点动身，我就准时到了。(但我动身太迟了) 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） 3、与将来事实相反 从句：①if+主语+were to do 主句：①主语+should/would/could/might+do ②if+主语+did/were ②主语+should/would/could/might+do ③if+主语+should+do ③主语+should/would/could/might+do 例如：If he went，would you go too? 如果他去，你也去吗?(大概他不会去) 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） 注意与说明：对于与将来事实相反的情形，请注意以下几点： 一是这里说的与将来事实相反，实为对将来情况的推测； 二是此用法中的条件从句谓语除用过去式外，有时也用“should+动词原形”（ 表示可能性极小， 表示与将来事实相反的假设)； 常译为“万一”） 或“were to+动词原形”（ 三是当条件从句使用“should+动词原形”这样的谓语时，主句谓语除可用“should (would, could, might)+动词原形”这样的虚拟语气外，也可用陈述语气或祈使语气。如： I should see him, I'll tell him. 万一我见到他，我就告诉他。 万一明天下雨，就别等我了。 If it should rain tomorrow, don’t expect me. 二、wish 后宾语从句 1、表示与现在事实相反的愿望，谓语动词用过去式。例如： I wish I had your brains. 我希望我有你那样的头脑。(事实：我根本比不上你) 2、表示与过去事实相反的愿望，谓语动词：had+done 例如： I wish I had knownthe truth of the matter. 我希望我那时就知道这件事情的真相。（事实：那时还不知道） 3、表示将来难以实现的愿望，谓语动词：should/would（情态动词）+ 动词原形 I wish I should havea chance again. 我希望我还能有一次这样的机会。（事实：很难再有 这样的机会了） 常见考法
虚拟语气详解及时态
二、虚拟语气（Subjunctive Mood） 1. 主语从句中的虚拟语气 主语从句（常用形式主语it 来代替，结构为It is that…）中的虚拟语气主要取决于某些用来表示建议、命令、要求、惊异和失望等的形容词和过去分词，其形式为：（should）+ 动词原形。常这样用的形容词有： appropriate，advisable，better，desirable，essential，imperative，important，insistent，natural，necessary，preferable，strange，urgent，vital等。 过去分词有： desired, demanded, ordered, requested, suggested, recommended, required 等。 例如： It is essential that you (should) win the voters’ hearts. It was suggested that he (should) join the club activities. 2. 表语从句和同位语从句中的虚拟语气 在表示建议、命令、主张、目的和愿望等的名词后面的表语从句和同位语从句中谓语动词要求使用虚拟语气。其形式为：（should）+ 动词原形。 常这样用的名词有： resolution, pray, decision, motion, suggestion, preference, proposal, advice, recommendation, desire, demand, requirement, order, necessity, request, idea 等。 例如： He gave orders that the guests (should) be hospitably entertained. 他下令热情款待这些客人。 His proposal is that we (should) get rid of the bad habits. 3. 宾语从句中的虚拟语气 1）某些动词后所接宾语从句中的谓语动词要求用虚拟语气，用来表示建议、命令和要求等。其形式为：（should）+ 动词原形。 常这样用的动词有：ask (要求), advise, determine, decide, command, insist, intend, move, prefer, propose, order, recommend, request, require, suggest, urge, demand, desire, direct等。例如：He insisted that the meeting (should) be put off. 他要求推迟那个会议。 They proposed that all the plans (should) be discussed at the meeting. 他们建议所有的计划都应该在会上讨论。 2）在以it为形式宾语的复合宾语从句中也可以用虚拟语气，其形式为：（should）+ 动词原形。这一句型中使用的形容词（宾补）与主语从句中的虚拟语气所使用的形容词相同。例如： We think it advisable that he (should) think deeply before acting. 我们认为他在行动之前好好考虑一下才是明智的。 3）wish后面所跟的宾语从句中的虚拟语气表示某种不能实现的愿望。 例如： I wish I knew what was going to happen. 但愿我能知道要发生什么事。 She wished she had stayed at home. 她后悔当时不在家。 I wish I were rich. 我巴不得我很有钱。