should + 动词原形 的虚拟语气
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.
if引导虚拟语气的教学设计
If引导非真实条件句（虚拟语气）语法教学设计 汉中市宁强县天津高级中学外语组：邱怡 一、?高中英语课程标准？分析： 虚拟语气这一语法项目是各类英语考试中心测试的重点之一，在高考题型中都有可能会涉及到，是高中阶段英语学习的一个重点和难点，也是高考英语常考的一个考点，掌握好虚拟语气对于语言理解和运用也具有重要的意义。 1.什么是虚拟语气即虚拟语气的概念； 2.掌握if引导虚拟语气的语法规则； 二、学情分析： 我所在的学校是一所山区高中，学生英语学习习惯差，语法知识混乱。很多学生学习英语困难，基础知识不扎实，在实际做题时常常无从下手，不能灵活运用。 三、教学目标： 1.知识与技能目标：掌握if引导虚拟语气语法的基本规则；能解决有关虚拟语气的习题。 2.过程与方法目标：教师讲解引导，举例并做练习 3.情感和价值目标：通过教师主动性和创造性的发挥，激发学生的学习兴趣，体验成就感。 四、教学重难点： 1.教学重点：了解和掌握if引导虚拟语气语法项目的基本规则 2.教学难点：能运用语法规则去完成各种练习，并在实际语言活动中去灵活应用，培养学生的语言运用能力和英语思维。 五、教学和学法方法： 教法讲授法：情景教学法，任务型教学法 六：教学手段： 多媒体辅助教学 七、教学过程： stepl Leadi ng in Show the following questions on the screen ，ask students to answer the questio ns will you do when you finish education you had 100 milli on yua n, what would you do Show a picture from a film which stude nts are familiar with, and list senten ces used subj un ctive mood in the film. （通过这几个问题的讨论，让学生了解虚拟语气的基本概念，引出if非真实条件句） step2 Prese nting Suppose three con diti ons of prese nt, past and future senten ces. First con diti on 1. If I were you, I would seize the cha nee to relax myself. am too busy now. If I had time, I would go shopping with you. Con cludi ng:
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）
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
虚拟语气详解
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.
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
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
(完整版)if引导的非真实性条件状语从句即虚拟语气
if 引导的非真实性条件状语从句即虚拟语气 通过动词形式的变化来表示说话人对发生的动作或存在的状态所持的态度或看法的动词形式称为语气。.英语中的语气分三种：陈述语气、祈使语气、虚拟语气。虚拟语气表示说话人所说的话不是事实，而是一种祝愿，建议，与事实相反的假设或实际可能性不大的情况等（即非真实的假设）。 If 引导的条件状语从句分为真实和非真实条件句（虚拟条件句）。真实条件句表示在假设的条件下，有可能实现的情况。非真实条件句表示的是假设的或实际可能性不大的情况，故采用虚拟语气。 If he does n’t hurry up, he will miss the bus.( 真实条件状语) If he was free, he asked me to tell stories.（真实条件状语） If I were you, I would go at once.（非真实条件状语从句） If there was no air, people would die.（非真实条件状语从句）1）非真实条件句中虚拟语气的基本形式。 假设类型条件从句的动词结果主句的动词 与现在事实相反动词过去式（be只用were）would/should/could/might + 动词原形 与过去事实相反had+过去分词would/should/could/might + have + 过去分词 与将来事实相反动词过去式/(should/were to)+动词原形would/should/could/might + 动词原形
①与现在事实相反 If I had time, I would go for a walk. 如果我有时间，我就会去散步。(实际情况：我现在没有时间，也不会去散步。) If I were you, I would take an umbrella. 假如我是你的话，我会带上雨伞。(事实上我不可能是你。) I would say no if someone asked me to be in a movie. 假如有人请我当电影演员，我会表示拒绝。(事实上现虚拟语气专项练习 1．Were it not for the snowy weather, we __________all right. A. would be B. would have been C. were D. may be 2. ________more careful, his ship would not have sunk. A. If the captain were B. Had the captain been C. Should the captain be D. If the captain would have been 3. If he _________ me tomorrow, I would let him know. A. should call B. should not have been able C. were not able D. are not able 4.If you asked your father, you ______________ permission. A. may get B. might get C. should have called D. maybe get
英语虚拟语气试题经典及解析
英语虚拟语气试题经典及解析 一、初中英语虚拟语气 1．If I _____ you ,I _____ them the story. A. was , tell B．were , will tell C．were ,wou ld tell D．am. would tell 【答案】C 【解析】 试题分析：句意：如果我是你，我会告诉他们这个故事。本题考查虚拟语气，if 从句中用一般过去时，主句中用would +动词原形，表示与现在的事实相反。故选C。 考点：考查虚拟语气的用法。 2．--------- Come and join us, Jim! ---------- I’m sorry I can’t . If I _______ time, I would certainly go. A．will have B．have had C．had D．had had 【答案】C 【解析】 试题分析：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” （2）、与过去事实相反 若与过去事实相反，条件从句的谓语用过去完成时（had+过去分词），主句谓语用“should （would, could, might）+have+过去分词” （3）、与将来事实相反 若与将来事实相反，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”： 句意：吉姆，来加入我们吧！抱歉，我不能。如果我有时间，我肯定会去的。结合语境可知下文中表示与现在相反的事实，故条件状语从句中用一般故去时态，选C。 考点：考查虚拟语气 3．Mr. White _____ at 8:30 for the meeting, but he didn't show up. A．should have arrived B．should arrive C．should have had arrived D．should be arriving 【答案】A 【解析】 试题分析：句意：怀特先生本来应该在8：30到会，但他却没有出现。should have done：
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：
英语虚拟语气讲解
虚拟语气 虚拟语气(Subjunctive Mood)这一语法项目是各类英语考试中心测 试的重点之一。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。 Ⅰ用以表示虚拟条件的虚拟语气 虚拟条件句的三种基本类型: 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”： If you took a taxi，you’d get there quicker.如果你坐出租车去，你可以快一点到那里。(但你不坐) 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。(可惜我不知道) 2.与过去事实相反。若与过去事实相反，条件从句的谓语用过去完成时(had+过去分词)，主句谓语用“should (would, could, might)+have+过去分词”：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 we had 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。(可惜我们找到他太晚了) 3.与将来事实相反。若与将来事实相反，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”： If he went，would you go too? 如果他去，你也去吗?(大概他不会去) If I asked him，I’m sure he’d help us. 如果我向他提出要求，肯定他会帮助我们。(不过我不打算这样做) 大多数的虚拟条件句属于上面三种情况的一种，但并不排除存在条件和 后果中，一个和现在情况相反，另一个和过去情况相反，例如：If you had followed what the doctor said, you would not have been so painful now. 这个句子在高中出现频率颇高。 但是，如果后果用了虚拟语气，而条件却用陈述语气，这种用法是错的。 2. 除了表示虚假条件外，if从句还可以表示对将来的推测，由于是 将来还没有发生的，所以谈不上是真实的还是虚假的，只能说这个事情 发生的可能性有多大。一般情况下，可以用陈述语气的if从句来表示对
be型虚拟语气及倒装
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、
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.