练习4：虚拟语气强化练习题
Part I. Multiple Choice
1. ______ go downtown this afternoon, please post the letter for me.
A. Had you
B. Were you to
C. If you did
D. Shall you
句意：如果你下午要去市中心，请帮我寄一下这封信。
解析：这是省略了if的条件句，完整的从句为If you were to go downtown this afternoon，从句是针对将来的虚拟语气，用于表示礼貌客气的态度。
2. You didn’t let me drive. If we ______ in turn, you ______ so tired.
A. drove, didn’t get
B. were driving, wouldn’t get
C. drove, wouldn’t get
D. had driven, wouldn’t have got
句意：你不让我开车。如果我们轮流开车，你就不会这么累了。
解析：这是针对已经发生了的事情的假设，开车是过去的事情了，因此从句中用过去完成时表示虚拟，主句中用would+have done的形式表示虚拟。
3. If it ______ for the snow, we _______ the mountain yesterday.
A. were not, could have climbed
B. were not, could climb
C. hadn’t been, could have climbed
D. hadn’t been, could climb
句意：如果不是因为那场雪，我们昨天本可以爬山的。
解析：这是针对已经发生了的事情的假设，下雪及爬山说的都是之前的事情，因此从句中用过去完成时表示虚拟，主句中用could+have done的形式表示虚拟。注意：此句中涉及一个it的句型。It is for …一般用于引起原因，If it isn’t for …，意为“要不是因为……”。此句中用了该句型的虚拟语气形式。
4. The new airport _______ if they had not stopped working on it.
A. would complete
B. had been completed
C. had completed
D. would have been completed
句意：如果他们没有停止建设，新机场早就建成了。
解析：这是针对已经发生了的事情的假设，因此从句中用过去完成时表示虚拟，主句中用would+have done的形式表示虚拟。新机场是被建成，这里有一个完成加被动。
5. If he _______ his do
A. had taken, might still have been
C. might have taken; had still been
D. took; might still be
句意：如果他听了医生的建议，他现在可能还活着。
解析：这是错综时间条件句，从句说的是过去听医生的建议，主句说的是现在的情况。因此从句中用过去完成时表示对过去事情的假设，主句中用“情态助动词might+动词原形”的形式表示对现在情况的假设。
A. were; would have let
C. had been; had let
D. were; had let
句意：如果你是健康的，昨天我就会让你去旅行了。
解析：这是针对已经发生了的事情的假设，健康状态及旅行说的都是昨天的事，因此从句中用过去完成时表示假设，主句中用would+have done的形式表示假设。
7. I lost your address, otherwise (or) I _________ you long before.
A. had visited
B. have visited
C. would have visited
D. should visit
句意：我弄丢了你的地址，否则我早就去看你了。
解析：otherwise后面的句子是针对已经发生了的事情的假设。因此用would+have done的形式表示本想做但是没有做。
8. The guard at the gate insisted that everybody _______ the rules.
A. obeys
B. obey
C. will obey
D. would obey
句意：门口的保安坚持要求每个人都遵守规则。
解析：这是表达主观意愿的虚拟语气。insist在句中意为“坚持要求”，其后的that从句中用动词原形，表示这是主观意愿。
9. The boss insisted that John ________ unfit for his work.
A. was
B. is
C. should be
D. were
句意：老板坚持认为John不称职。
解析：该句中没有虚拟语气，是直陈句，从句时态与主句时态应一致，都为一般过去时。句中的insist意为“坚持认为、坚持说”，是坚持自己的看法，而不是坚持要求别人要做什么的意思，因此表达的不是主观意愿，不用虚拟语气。
10. The officer commanded (ordered) the damaged bridge ____ before dawn.
A. must be repaired
B. would be repaired
C. be repaired
D. should have been repaired
句意：长官命令在天亮前修好损毁的桥梁。
解析：这是表达主观意愿的虚拟语气。Command/order后的that从句中用动词原形表示主观意愿。
11. He suggested (advised, proposed) that the wounded _______ to the hospital as
soon as possible.
A. had been sent
B. should have been sent
C. would be sent
D. (should) be sent
句意：他建议尽快把伤员送到医院。
解析：这是表达主观意愿的虚拟语气。Suggest/advise/propose后的that从句中用动词原形表示主观意愿。
12. He came home with a smile on his face, which suggested that he __ work.
A. should find
B. had lost
C. should have found
D. had found
句意：他回家时面带微笑，这意味着他找到了工作。
解析：该句中没有虚拟语气，从句的时态与整个句子的时态保持一致。句子是一般过去时，而找到工作是在回家之前发生的，所以要用过去完成时。该句中的suggest意为“表明、意味着、暗示”，不表示“建议”，因此不用虚拟语气。
13. Most of the members demanded (requested, required, asked) that the meeting
________ till after Friday.
A. shouldn’t put off
B. not be put off
C. wouldn’t be put off
D. not put off 句意：大部分成员要求会议不要推迟到周五以后。
解析：这是表达主观意愿的虚拟语气。Demand等词后的that从句中用动词原形表示主观意愿。这里相当于是should not be put off，省略了should。
14. I wish I ________ how to translate this sentence.
A. knew
B. know
C. have known
D. should know
句意：我希望我知道如何翻译这个句子。
解析：这是表达非现实的愿望。Wish后的that从句中，如果是针对现在的时间而言，那么动词用过去时表示非现实的愿望。
15. –Has Fangfang been to New York? –No, but she wishes she _____.
A. would
B. will next time
C. had
D. had next time
句意：芳芳去过纽约吗？——没有，但是她希望她去过。
解析：这是表达与过去事实不一致的愿望。Wish后的that从句中，如果是针对已经发生的事情而言，那么动词用过去完成时表示与过去事实不一致的愿望。该句是一个省略句，完整的句子为No, but she wishes she had been to New York。由于是对问题的回答，所以省略了问题中的相同成分，只保留了助动词had。
16. I wish I _______ the TV program last night.
A. could watch
B. have watched
C. watched
D. could have watched
句意：我希望我昨晚看了那个电视节目。
解析：这是表达与过去事实不一致的愿望。Wish后的that从句中，如果是针对已经发生的事情而言，那么动词用过去完成时表示与过去事实不一致的愿望，如果重点要表达遗憾情绪，也可以用“情态助动词+have done”的形式。
17. The two strangers talked as if they ______ fiends for years.
A. should be
B. would be
C. have been
D. had been
句意：那两个陌生人聊起天来就好像他们是多年的朋友一样。
解析：这是与过去事实不一致的比拟。as if从句中用过去完成时表达与过去事实不一致的比拟。
18. When a pencil is partly in a glass of water, it looks as if (though) it _______.
A. breaks
B. has broken
C. were broken
D. has been broken
句意：当一支铅笔一部分置于水杯中时，看起来就好像被折断了一样。
解析：这是与一般现实不一致的比拟。as if从句中用过去时表达与一般事实不一致的比拟，be动词用were。
19. Look at the clouds, it looks as if it _______ rain.
A. will
B. would
C. were
D. is going to
句意：看那些云，看起来好像就要下雨了。
解析：这是接近于事实的比拟，不适用虚拟语气。根据语境判断，下雨是很可能就要发生的事情，所以不适用虚拟语气。
20. _______ he were trying to teach them all he knew.
A. It seemed that
B. They had hoped
C. It seemed as if
D. They thought
句意：看起来好像他要把他所知道的都教给他们。
解析：根据后半句中的were得知，该句中有虚拟语气，并且是针对当前事实的非现实的比拟，因此需要选择一个能使用虚拟语气的结构。所给选项中只有as if 从句需要使用虚拟语气，其他结构不使用虚拟语气。
21. The doctor urged that she _________ an operation as early as possible.
A. had
B. has
C. have
D. would have
句意：医生催促她尽早做手术。
解析：这是表达主观意愿的虚拟语气。urge后的that从句中用动词原形表示主观意愿。
22. Without your encouragement and support, we ________________.
A. should not succeed
B. would not succeed
C. would have succeeded
D. would not have succeeded
句意：如果没有你的鼓励和支持，我们不可能取得成功。
解析：这是转化了的虚拟条件句，把if条件句转化为without介词短语，表达的仍然是一个假设的条件，因此句中仍要使用虚拟语气。此处，取得成功是已经发生的事，针对过去的事，使用“情态助动词+have done”的结构表达假设。
23. I think it’s high time the children __________ to school.
A. go
B. are going
C. will go
D. went
句意：我想该是孩子们上学的时候了。
解析：这是表达主观意愿的虚拟语气。句型it is (high) time that…从句中要用动词过去式表达主观意愿，有时也可以用“should+动词原形”，但是should不能省略。
24. Given more time and money, he ____________better than what it is.
A. did
B. had done
C. could have done
D. would do
句意：如果有更多的时间和钱，他本可以做得比现在更好。
解析：这是转化了的虚拟条件句，把if条件句转化为given引起的短语，表达的仍然是一个假设的条件，因此句中仍要使用虚拟语气。此处他做事情是已经发生的事，针对过去的事，使用“情态助动词+have done”的结构表达假设。
25. The same thing, happening in war time, ___________ great disaster.
A. will amount to
B. amounts to
C. would have amounted to
D. would amount to
句意：同样的事，如果发生在战争时期，将会构成巨大的灾难。
解析：这是转化了的虚拟条件句，把if条件句转化为happening in war time分词短语，表达的仍然是一个假设的条件，因此句中仍要使用虚拟语气。此处，是针对一般情况的假设，因此使用针对现在时间的虚拟语气，句中用“情态助动词+动词原形”表达假设。
注意：该句中，amount to sth.是重点动词短语，意为“相当于、等同于、构成”。
Part II. Error Analysis
1. Your director would have been inclined to favor your request if you would have
waited for another occasion when he was less busy with other more important matters.
修改：would have waited →had waited
句意：如果你能等到主管处理不太重要事情的、不太忙的其他时候，他是有可能愿意接受你的请求的。
解析：根据语境及句中时态判断，找主管提出请求这件事已经发生了，针对过去事情的假设，从句中应该使用过去完成时。
expects cast takes the time to
句意：重要的是，每个想要投选票的公民要花点时间公开评估这些问题。
解析：It is important that…句型中，用动词原形表达主观意愿。此处that从句中包含一个定语从句who expects to cast his vote，that从句的主语为every citizen, 谓语动词为take，只在谓语动词上使用主观意愿的虚拟语气，其他动词不涉及。
Part III. Translation
1.The general manager insisted that the project be carried out as planned.
2.He would not resign even if the heaven should collapse.
3. A more responsible person would not have left the work half done.
4.It is necessary that immediate effort (should) be made.
5.Now it is time that you made some sentences by using this pattern.
高中英语语法虚拟语气 教学设计 集团档案编码：[YTTR-YTPT28-YTNTL98-UYTYNN08]
高中英语语法虚拟语气教学：The subjunctive mood 厦门第十中学吕瑞珠 一、概述 本节课是高中英语语法教学课，授课内容为虚拟语气，授课对象是高三年学生。从呈现、加深记忆、巩固到实践并将语言项目运用于写作中并做适当的点评，大概需要两课时。但我这里着重阐述的是第一课时的教学内容、教学策略等。 通过本节语法教学课的学习，学生重新整合自己的有关虚拟语气的知识，复习已知的虚拟语气的表达形式如：I wish I could fly freely in the sky like a bird; It is high that you got up.等等，并学习新的表达形式如：The English teacher suggested that we should read the English newspaper every day; I would have passed the English exam if I had worker harder in the past 20 days.最为重要的是，学生在学习完虚拟语气的表达形式后，要在写作中运用。 虚拟语气在高中英语语法的难点之一，多数学生感到费解，因此也更需要老师的指导与相应的实践与运用，并且较好地掌握虚拟语气的表达形式，有助于扫除学生阅读过程中对个别句子的理解。 二、教学目标分析 1．知识与技能 1）复习学生已掌握的虚拟语气表达的句型： I wish I were… / I could … It is high time that you did your homework.. If I were you, I would… 2) 学习虚拟语气新的表达方式，尤其是if引导的虚拟条件状语从句，掌握与现在事实、与过去事实、与将来事实相反的三种虚拟语气的表达，特别是主句与从句时态的呈现；还有引导出的宾语从句需要运用虚拟语气的动词，如suggest, insist, propose, demand and so on. 3）培养学生运用所学知识表达自己的思想的能力。 2．过程与方法 1）引导学生在欣赏英文歌曲An Angel的情景教学过程中，开启对虚拟语气表达已有的知识记忆。
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。
一、选择题 1．—________ you Mary? —Yes, I ________. A．Are; is B．Is; am C．Are; am D．Am; is 2．In the past he often made his sister____, but now he is often made ___by his sister. A．to cry; to cry B．cry; cry C．to cry; cry D．cry; to cry 3．—Do you like watching cooking programs on TV? —No, I don’t , but my twin brother . He's very fond of cooking. A．does B．do C．is D．are 4．These chicken wings taste ________. I want more. A．well B．wonderfully C．nice D．bad 5．Parents always hope their children a happy and healthy life. A．to live B．can live C．living D．should live 6．What kind of music ________ he ________? A．does; listen B．does; listen to C．is; listen D．is; listen to 7．I think the music is great , and it is worth________ A．to listen B．to listen to C．listening D．listening to 8．A number of visitors ________visiting our school. The number of them________ about 180. A．is;are B．are; is C．is; is D．are; are 9．—William, your hat _______ nice. —Thanks. A．buys B．looks C．finds 10．Which of the following sentences is right? A．My books on the desk B．Nice meet you, too C．These are my dictionaries D．Thanks you for your help. 11．Lily and Lucy _______ their mother. They have big eyes and yellow hair. A．like both B．both are like C．both like D．are both like 12．Many students are so crazy about mobile games that they lose interest in their schoolwork, which _________ their parents and teachers a lot. A．worries about B．is worried about C．worries D．is worried 13．—Hey, Jack. Do you want to go to the library? —That ________ great. I love reading. A．hears B．looks C．sounds D．listens 14．— Tom in the library? —Yes,and his friends Eric and Dale in the library,too. A．Is;are B．Is;is C．Are;is 15．I have bought a Chinese – English dictionary. When and where_____ you _____ it?
虚拟语气在非真实条件句中 ①错综时间条件句: 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表示的时间作出相应的调整。如： If you had followed my advice just now, you would be better now. If you had studied hard before, you would be a college student now. ②if省略句 在条件句中可以省略if, 把were, had, should提到句首，变成倒装句式。否定句时not留在原来位置不变。如： If I were at school again, I would study harder. →Were I at school again, I would study harder. 如果我还有上学的机会，我会更加努力学习。 If you had come earlier, you would catch the bus. →Had you come earlier, you would catch the bus. 如果你来得早点，你就能赶上公共汽车。 If it should rain tomorrow, we would not go climbing. →Should it rain tomorrow, we would not go climbing. 如果明天下雨的话，我们就不能登山去了。 ③用介词代替条件状语从句 常用的介词有with, without, but for。如： What would you do with a million dollars? (=if you had a million dollars)
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 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
初中英语语法专项练习——虚拟语气（2） 1. Well, it is high time you ________the train. A. had caught B. caught C. will catch D. catch 2. He talks as though eh ________all the work himself, but in fact Jim and John did most of it. A. did B. has done C. does D. had done 3. He spoke as though he ________in space at that moment. A. walked B. would walk C. were walking D. would have walked 4. He looked ________he had just woken. A. that B. if though C. as if D. like 5. If only we ________a recorder of our own. A. had B. have C. will have D. would have 6. Mother told me to put on my coat ________I should catch cold. A. if B. unless C. in order that D. for fear that 7. She insisted that we ________there for another two days. A. stay B. would stay C. stayed D. must stay 8. I requested that he ________ us some advice on how to do it. A. must give B. give C. were to give D. gave 9. It was requested that the play ________again.
Unit13虚拟语气专题讲解 【知识要点】 语气（mood）是一种动词形式，用以表示说话者的意图或态度。 英语有三种语气： ＊直陈语气（indicative mood）---- 事实 France lies to the east of England. ＊祈使语气（imperative mood）---- 请求、命令 Make yourself at home. ＊虚拟语气（subjunctive mood） If there were no air and water , we should not be able to live on the earth. 虚拟语气表示说话人的一种主观愿望或假想，所说的是一个条件而不一定是事实，或与事实相反。 一. 虚拟语气在if条件状语从句中的用法 假设类型条件从句谓语 动词形式 主语谓语 动词形式 与现在事实相反动词的过去式(be用were而不用was) should/ would /could/ might+动词原形 与过去事实相反had + 过去分词 should/ would/could /might + have+过去分词 与将来事实相反1.should+动词原形 2.动词过去式 3.were to+动词原形 should/ would/ could/ might +动词原形 1. 在错综条件句子中，虚拟条件从句和主句动作发生的时间不一致，因此，主句和从句的谓语动词应根据所指的时间选用适当的虚拟语气形式。 1）If I were you，I wouldn't have missed the film last night． 2）If he had followed the doctor's advice，he would recover already．（从句与过去事实相反，主句与现在事实相反。） 2、在if虚拟条件句中，有时可把连词省去，采用倒装语序把谓语动词were或助动词did，had，should 移到句 首构成非真实条件从句的另一种句型，其意思不变。 1）Had we time to spare，we would be glad to go to the park． 2）Were it not for the discovery of electricity，the modern world would experience great inconvenience． 3、有时假设的情况不用if引导虚拟条件从句来表述，而用介词（如without， but for等）引出的短语、分词 （如supposing等）引出的短语、并列连词（如or，otherwise，but，though等）、由动词suppose引出的祈使句或通过上下文的意思来表达。此时句中谓语动词仍采用虚拟语气的相应形式。 1）But for your advice，I would not be able to do this work． 2）Victor obviously doesn't know what's happened，otherwise he wouldn't have made such a stupid remark．。
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 的虚拟语气根据不同的时间有三种不同的形式。 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 University, he would make full use of his time. 如果他要上清华大学的话，他就会充分 利用他的时间了。 If he were to come here, he would tell us about it. 如果他要来的话，他会通知我们一声。 (2) 现在时的条件句中的虚拟语气。如： If he were free, he would help us. 要是他有空的话，它会帮助我们的。 If he studied at this school, he would know you well. 如果他在这所学校学习的话，它会对你很熟悉。 (3) 过去时的条件句中的虚拟语气。如： If I had seen the film, I would have told you about it. 我如果看过这场电影，我会把电影内容告诉你了。 If I had got there earlier, I would have met Mr. Li. 如果我早点到那儿，我就会会到了李先生。 3. 运用条件句中的虚拟语气时，须注意的几个问题 (1) 当从句的主语为第三人称单数时，谓语动词若是系动词be 时，可用was 代替were。但在倒装虚拟结构及if I were you, as it were 中，只能用were。如： Were I ten years younger, I would study abroad. 要是我还年轻十岁的话，我会去国外学习。 If I were you, I would try my best to grasp the chance. 要是我是你的话，我要尽力抓住这次机会。 (2) 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。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，我现在也会使工程师了 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。
初中英语语法三大从句总结 在初中英语中，主要有三大从句，即宾语从句、定语从句、状语从句（包括时间、条件、结果、目的、原因、让步、地点、方式等）。 宾语从句 一、定义:在句子中起宾语作用的从句叫做宾语从句。 二、连接词 that: I think that you can pass the exam. Whether/if: I don’t know what the word means. “Wh”: I don’t know what the word means. I don’t know where he found the book. 只用whether的情况： 1. 与or not连用： I don’t know whether it’s raining or not. 2. 与动词不定式连用： He doesn’t know whether to accept the invitation. 3. 连接词前有介词时： It depends on whether he is coming. 三、时态 1. 主句是一般现在时态，从句根据实际情况而定(各种时态均可) She wants to know what he has done for the exam. 2.主句是一般过去时态，从句用相应的过去的时态。 1）She said that she was a student. 2）She said that she would fly to Japan in a week. 3）She said that she had finished her homework already. 3. 如果宾语从句说的是客观真理、自然现象或事实时，这时宾语从句要用一般现在时态。The teacher said that the earth goes round the sun. 定语从句 一、定义:在复合句中修饰名词、代词的从句叫定语从句。 二、先行词 先行词指人who /that 先行词指物which/ that 定语从句一般紧跟被修饰的名词或代词（即先行词）后
高中英语语法讲解--虚拟语气 1. 语气的定义和种类 （1）语气的定义 语气是动词的一种形式，它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 A. 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。 We are not ready. Did it rain all day yesterday? What a fine day today！ B. 祈使语气 表使说话人的建议、请求、邀请、命令等。 Be careful. Don’t forget to clo se the window. Open the door, please. C. 虚拟语气 表使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。 2. 虚拟语气 一. 虚拟语气在条件句中的应用 学习虚拟语气在条件句中的用法之前我们必须清楚条件句的种类：条件句有真实条件句与非真实条件句(或称虚拟条件句)两种。真实条件句所表的假设是可能发生或实现的，句中的条件从句与结果主句都用陈述语气。如： If it doesn’t rain tomorrow, I will go for a picnic. 假若明天不下雨，我就去野餐。 Oil floats if you pour it on water. 你如把油倒在水里，油就浮起来。 虚拟条件句所表的假设则是不可能或不大可能发生或实现的，句中的条件从句与结果主句皆须用虚拟语气。 1. 与现在事实相反的虚拟条件句，条件从句的谓语用动词的过去式(be的过去式用were), 主句的谓语用should （would, might，could）+动词原形。 如： If it were not raining, we should go for a picnic.如果现在不下雨的话，我们就出去野餐了。 （事实是：天在下雨，我们不能出去野餐。表示愿望。） If he came here, he might be able to help you. 如果他来这，他就能够帮助你了。 （事实是：他没来这，他不可能帮助你。表示对他的良好印象。） 2. 与过去事实相反的虚拟条件句，条件从句的谓语用had+过去分词，主句的谓语用should （would, might，could）+ have ＋过去分词。 如：She would have gone to the party if she had been invited.
虚拟语气 1. I wish (that可省略,下同)I knew the answer to the question.我希望知道这个答案。(事实上是不知道) 2. He wishes he hadn't lost the chance. 他真希望没有失去机会。(其实已失去) 3. You wished she would arrive the next day.(would + arrive) 你希望她第二天会到。(事实上她还没到) Subjunctive Mood作为专门表达假设意义和其他非事实意义的动词形式，仅是古英语遗留下来的残余。它仅有两个形式，即be型虚拟式和were型虚拟式。 Be型虚拟]----- be型虚拟式是以动词原形表示的，不管主语是什么人称，动词一律用原形，如动词为被动态，则助动词be也用原形。其主要用法如下： 1)用于表命令、决定、建议、坚持等词语之后的that分句中 这一用法又分三种情况： a)用在 decide,decree,demand,insist,move,order,prefer,propose,recommend,request,require, suggest,vote等动词之后的that分句中.（宾语从句） 在expect, believe, think, suspect等动词的否定或疑问形式后的宾语从句中，我们经常用“should＋动词原形(或完成形式)”，表示惊奇，怀疑，不满等。 He ordered that all the books be sent at once. He ordered that all the books be sent at once. we propose that somebody neutral take the chair. She insisted that she go to the south for her holiday. b)用在 advisable,appropriate,desirable,essential,fitting,imperative,important,impossible,nece ssary,obligatory,proper等形容词之后的that分句中。（主语从句） It is essential that all the facts be examined first. It was appropriate that thisi tax be abolished. I thousht it advisable that an armed guard stand in readiness. c)用在 decision,decree,demand,instruction,order,requirement,resolution等名词之后的that分句中。 The board has given instructions that the agent fly to Boston. We were faced with the demand that this tax be abolished. Their decision was that the school remain closed. 在这一用法中be型虚拟式能与“should+不定式”交替使用，也能与to-不定式交替使用。 He ordered that the books be sent at once . = He ordered that the books should be sent at onc. = He ordered that the books to be sent at once. 2）用于由if,though等引导的分句中.
高中英语虚拟语气语法总结 （名师剖析必考语法知识点，值得下载背诵） 虚拟语气 1）概念 虚拟语气用来表示说话人的主观愿望或假想，所说的是一个条件，不一定是事实，或 与事实相反。 2）在条件句中的应用 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 是假设的或实际可能性不大的情况，故采用虚拟语气。 真实条件句 真实条件句用于陈述语气，假设的情况可能发生，其中if 是如果的意思。[来源学科网]时态关系 句型：条件从句主句 一般现在时shall/will + 动词原形 If he comes, he will bring his violin. 典型例题[来源:https://www.doczj.com/doc/528859003.html,] The volleyball match will be put off if it ___. A.will rain B. rains C. rained D. is rained 答案B。真实条件句主句为将来时，从句用一般现在时。 注意： 1）在真实条件句中，主句不能用be going to表示将来，该用shall, will. (错) If you leave now, you are never going to regret it. (对) If you leave now, you will never regret it. 2）表示真理时，主句谓语动词便不用shall (will) +动词原形，而直接用一般现在时的动词形式。 非真实条件句 1）时态：可以表示过去，现在和将来的情况。它的基本特点是时态退后。
a.同现在事实相反的假设。 句型：条件从句主句 一般过去时should( would) +动词原形 If they were here, they would help you. b.表示于过去事实相反的假设。 句型：条件从句主句 过去完成时should(would) have+ 过去分词 If she had worked harder, she would have succeeded. The rice would not have been burnt if you had been more careful. If my lawyer had been here last Saturday, he would have prevented me from going. If he had come yesterd ay, I should / would have told him about it. 含义：He did not come yesterday, so I did not tell him about it. If he had not been ill and missed many classes, he would have made greater progress.[来源学科网ZXXK]含义：He was ill and missed many lessons, so he did not make greater progress. c.表示对将来的假想 句型：条件从句主句 一般过去时should+ 动词原形 were+ 不定式would + 动词原形 should+ 动词原形 If you succeeded, everything would be all right. If you should succeed, everything would be all right. If you were to succeed, everything would be all right. 混合条件句 主句与从句的动作发生在不同的时间，这时主，从句谓语动词的虚拟语气形式因时间不 同而不同，这叫做混合条件句。 If you had asked him yesterday, you would know what to do now. （从句与过去事实相反，主句与现在事实相反。） If it had rained last night (过去), it would be very cold today (现在). 虚拟条件句的倒装[来源:Z+xx+https://www.doczj.com/doc/528859003.html,] 虚拟条件句的从句部分如果含有were, should, 或had, 可将if省略，再把were, should
虚拟语气(the subjunctive mood,又称假设语气,是谓语动词的一种形式,表示说话人叙述的内容与事实相反,在现实中并不存在,或实现的可能性很小。 一、动词的语气 语气用来区别讲话人对某一行为或事情的看法和态度。英语中的语气(mood有三种,分别是陈述语气、祈使语气和虚拟语气。 1.陈述语气 陈述语气一般用来叙述事实或就事实提出询问,主要用于陈述句、疑问句和某些感叹句。 Where there is a will, there's a way. 有志者事竟成。 Can you help me carry the box upstairs 你能帮我把箱子搬到楼上吗? How I missed the life in the countryside! 我多么想念乡村的生活啊! 2.祈使语气 祈使语气表示说话人向对方提出请求或下达命令。 Come this way,please! 请这边走。 Don't make any noise, will you 别吵,行吗? Do be careful when crossing the street. 过马路时一定要小心。 3.虚拟语气 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。 If 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。 I wish it were spring all the year round. 但愿四季如春。 May good luck be yours! 祝你好运! 二、条件句中的虚拟语气 英语中条件从句有两类,一类是真实条件句,另一类是非真实条件句。如果假设的情况可能发生,是真实条件句;如果假设的情况是不存在的或不大可能发生的,则是虚拟条件句。 A.真实条件句 真实条件句表示的假设是可能发生或实现的,主句和从句的谓语动词都要用陈述语气。 If he doesn't come at 8, we won't wait for him. 如果他八点不来,我们就不等他了。 If a flood happened in the past, there was usually a great loss of life and property.过去发生洪水的话,常有很大的生命和财产损失。 We shall go there unless it rains tomorrow. 如果明天不下雨,我们将去那里。 I'll let you use my bike on condition that you keep it clean. 如果你能保持车子干净,我就让你用我的自行车。 B.非真实条件句 在含有非真实条件句的复合句中,主句和从句的谓语动词都要用虚拟语气,其构成有三种形式: 与现在事实相反if条件句的谓语:were did
虚拟语气在非真实条件句中
①错综时间条件句: 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表示的时间作出相应的调整。如： If you had followed my advice just now, you would be better now. If you had studied hard before, you would be a college student now. ②if省略句 在条件句中可以省略if, 把were, had, should提到句首，变成倒装句式。如：If I were at school again, I would study harder. →Were I at school again, I would study harder. 如果我还有上学的机会，我会更加努力学习。 If you had come earlier, you would catch the bus. →Had you come earlier, you would catch the bus. 如果你来得早点，你就能赶上公共汽车。 If it should rain tomorrow, we would not go climbing. →Should it rain tomorrow, we would not go climbing. 如果明天下雨的话，我们就不能登山去了。 ③用介词代替条件状语从句 常用的介词有with, without, but for。如： What would you do with a million dollars? (=if you had a million dollars) 如果你有100万元，你会做什么？ We couldn?t have finished the work ahead of time without your help. (=if we