0909虚拟语气用法总结V11.docx

1、0909虚拟语气用法总结V11虚拟语气用法总结(1) 虚拟语气用法总结一英语中表示假设的句子主要是虚拟语气，其表示方式有：1) 以“if条件从句”为虚拟语气标志：A. 与现在事实相反，从句时态用一般过去时（be用were)，主句用过去将来时；例如：If I were you, I would finish homework first.B. 与过去事实相反，从句用过去完成时，主句用过去将来完成时；例如：If I had gone there, I would have bought two tickets.C. 与将来事实相反 从句用一般过去时或过去将来时, 主句用过去将来时。例如：If he

2、 had/would have time, he would come to your birthday party tomorrow.2) 以even if / though让步从句为虚拟语气时，主从句的时态同“if条件从句”的时态规则相同。A. 例如：He might give you more help, even though he was very busy.3) 以as if / though引导的表语从句或状语从句为虚拟语气时，主从句的时态同“if条件从句”的时态规则相同。A. 例如：It seems as if he had known the news.4) 以wish后的宾

3、语从句为虚拟语气标志A. 与现在事实相反，从句时态用一般过去时（be用were)例如：I do wish I knew more about the subject.B. 与过去事实相反，从句用过去完成时例如：I wish I had seen you yesterday.C. 与将来事实相反，从句用过去将来时例如：I wish you wouldnt smoke any more.(2) 虚拟语气的用法总结二英语中的语气分为陈述语气、祈使语气、虚拟语气三类。 虚拟语气的基本形式和用法在含有虚拟条件句的复合句中，主从句的谓语都要用虚拟语气。1) 虚拟条件句的三种基本类型：与现在事实相反、与过去

4、事实相反、与将来事实相反。条件句有真实条件句和非真实(虚拟)条件句两种。真实条件句所表示的假设是有可能发生的，而非真实条件句则通常表示一种假想，与事实相反或不大可能会发生：If I have time, I will go with them. 假若我有时间，我就同他们去。(陈述语气)If I were you, I would go with them. 假若我是你，我就同他们去。(虚拟语气)A. 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 I knew her numb

5、er ，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)B. 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 Id left sooner，Id have been on time. 要是我早点动身，我就准时到了。(但我动身太迟了)C. 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 I ask

6、ed him，Im sure hed 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)注：几点特别说明 主句谓语中的should主要用于第一人称后。would, might, could的大致区别是：would表示结果，might表示可能性，could表示能力、允许或可能性。比较：If you tried again ，you would succeed. 要是你再试一试，你就会成功的。(would表结果)If you tried again， you might succeed. 要是你再试一试，你可能会成功的。(might表可能)If you tried ag

7、ain ，you could succeed. 要是你再试一试，你就能成功了。(could表能力) 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，常译为“万一”)或“were to+动词原形”(表示与将来事实相反的假设)；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，也可用直陈语气或祈使语气：If it should rain tomorrow,

8、 dont expect me. 万一明天下雨，就不要等我了。（祈使语气）If I should see him, Ill tell him. 万一我见到他，我就告诉他。（直陈语气）2) 2、错综时间虚拟条件句所谓错综时间虚拟条件句即条件从句与主句所指时间不一致，如从句指过去，而主句即指的是现在或将来，此时应根据具体的语境情况，结合上面提到的三种基本类型对时态作相应的调整：If it had rained last night, the ground would be wet now. 要是昨晚下过雨的话，现在地面就会是湿的。You would be much better now if yo

9、u had taken my advice. 假若你当时听我的话，你现在就会好多了。3) 两个常考虚拟语气句型 句型介绍这两个句型是If it werent for和If it hadnt been for，这是两个很常用的虚拟语气句型，也经常受到命题人的青睐，其意为“若不是(有)”“要不是有”。如：If it werent for water, no plant could grow. 要是没有水植物就无法生长。If it hadnt been for your assistance ，we wouldnt have succeeded. =But for your assistance ，

10、we wouldnt have succeeded.=Without your assistance ，we wouldnt have succeeded.4) wish后宾语从句用虚拟语气 用法说明动词wish后接宾语从句时，从句谓语要用虚拟语气。若要表示与现在事实相反的愿望，从句谓语用一般过去时或过去进行时；若表示与过去相反的愿望，从句谓语用过去完成时或would / could+have +过去分词；若表示将来没有把握或不太可能实现的愿望，用would (could)动词原形。如：注：特别注意从句的时态只与从句所指的时间有关，而与wish的时态无关，比较：I wish I were ri

11、ch. 要是我现在有钱就好了。I wish I had been rich. 要是那时我有钱就好了。I wished I were rich. 当时我后悔自己没有钱。I wished I had been rich. 当时我后悔自己曾经没有钱。5) if only后的句子用虚拟语气if only 与 I wish一样，也用于表示与事实相反的愿望，其后所虚拟语气的时态与 wish后所接时态的情况相同：If only she had had more courage! 她再勇敢一些就好了。If only I had listened to my parents! 我要是当时听了父母的话就好了。If

12、 only she would go with me! 她要是愿意和我一道去就好了! 注：if only 通常独立使用，没有主句。6) as if (though) 从句用虚拟语气 基本用法以as if (as though)引导的方式状语从句或表语从句，有时用虚拟语气，若表示与现在事实相反，谓语动词用一般过去时；若表示与过去事实相反，用过去完成时；表示将来的可能性不大，用would (might, could)+动词原形：He acts as if he knew me. 他显得认识我似的。They treat me as though I were a stranger. 他们待我如陌生人

13、。He talks as if he had been abroad. 他说起话来好像曾经出过国。注：两点说明(1) 从句所表示的内容若为事实或可能为事实，也可用陈述语气：It looks as if well be late. 我们似乎要迟到了。(2) 注意 It isnt as if的翻译：It isnt as if he were poor. 他不像穷的样子(或他又不穷)。7) Its time后的从句用虚拟语气 基本用法从句谓语通常用过去式表示现在或将来，有时也用过去进行时或“should+动词原形”(较少见，且should不能省略)，其意为“(早)该干某事了”：Its time we

14、 went were going, should go. 我们该走了。Its time I was in bed. 我该上床睡了。(不用were)8) would rather后句子用虚拟语气在would rather, would sooner, would just as soon 后的that从句中, 句子谓语习惯上要用虚拟语气， 表示”宁愿做什么” ，具体用法为： 一般过去时表示现在或将来的愿望Id rather you went tomorrow (now). 我宁愿你明天(现在)去。 用过去完成时表过去的愿望Id rather you hadnt said it. 我真希望你没有这

15、样说过。9) 宾语从句用虚拟语气的10种类型 I wish后的宾语从句动词wish后接宾语从句时，从句谓语要用虚拟语气。若要表示与现在事实相反的愿望，从句谓语用一般过去时或过去进行时；若表示与过去相反的愿望，从句谓语用过去完成时或would / could+have +过去分词；若表示将来没有把握或不太可能实现的愿望，用would (could)动词原形。如：I wish I could be of some use. 我希望我能有什么用处。We wish he didnt smoke. 我们希望他不吸烟。I wish prices would come down. 我希望物价能降下来。 表示

16、“坚持”后的宾语从句主要是指insist的宾语从句，从句谓语由“should+动词原形”构成，其中的should在美国英语中通常可以省略。如：I insisted that he (should) stay. 我坚持要他留下。注：动词insist后接宾语从句时，除可用虚拟语气外，也可用陈述语气，两者的区别是：若谓语动词所表示的动作尚未发生，或尚未成为事实，则用虚拟语气；若谓语动词所表示的动作已经发生，或已经成为事实，则要用陈述语气。比较：He insisted that I had read his letter. 他坚持说我看过他的信。He insisted that I should re

17、ad his letter. 他坚持要我看他的信。 表示“命令”后的宾语从句主要是指order, command的宾语从句，从句谓语由“should+动词原形”构成，其中的should在美国英语中通常可以省略。如：He ordered that it (should) be sent back. 他命令把它送回去。 表示“建议”后的宾语从句主要是指advise, suggest, propose, recommend等的宾语从句，从句谓语由“should+动词原形”构成，其中的should在美国英语中通常可以省略。如：He suggested that we should leave earl

18、y. 他建议我们早点动身。注：与动词insist相似，动词suggest后接宾语从句时，除可用虚拟语气外，也可用陈述语气，两者的区别也是：若谓语动词所表示的情况尚未成为事实，则用虚拟语气，此时suggest通常译为“建议”；若谓语动词所表示的情况为既成事实，则要用陈述语气，此时的suggest通常译为“表明”、“认为”。比较并体会：He suggested that we (should) stay for dinner. 他建议我们留下吃饭。I suggested that you had a secret understanding with him. 我觉得你与他心照不宣。 表示“要求”

19、后的宾语从句主要是指ask, demand, require, request等后的宾语从句，从句谓语由“should+动词原形”构成，其中的should在美国英语中通常可以省略。如：I ask that he leave. 我要求他走开。He requires that I (should) appear. 他要求我出场。 表示“提议”“投票”后的宾语从句主要是指move, vote等后的宾语从句，从句谓语由“should+动词原形”构成，其中的should在美国英语中通常可以省略。如：I move that we accept the proposal. 我提议通过这项提案。 表示“敦促”

20、后的宾语从句主要是指动词urge后的宾语从句，从句谓语由“should+动词原形”构成，其中的should在美国英语中通常可以省略。如：He urged that they go to Europe. 他敦促他们到欧洲去。 表示“安排”后的宾语从句主要是指动词arrange后的宾语从句，从句谓语由“should+动词原形”构成，其中的should在美国英语中通常可以省略。如：He arranged that I should go abroad. 他安排我去国外。 表示“希望”“打算”后的宾语从句主要是指动词desire, intend后的宾语从句，从句谓语由“should+动词原形”构成，其

21、中的should在美国英语中通常可以省略。如：She desires that he do it. 她希望他做此事。 表示“指示”后的宾语从句主要是指动词direct后的宾语从句，从句谓语由“should+动词原形”构成，其中的should在美国英语中通常可以省略。如：The general directed that the prisoners should be set free. 将军指示释放那些俘虏。10) 主语从句中的虚拟语气在It is necessary，important，strange，natural， advisable, anxious, compulsory, cruc

22、ial, desirable, eager, essential, fitting, imperative(绝对必要), impossible, improper, obligatory, possible, preferable, probable, recommended, urgent, vital etc. ；it is a pity；It is requested/suggested/desired/proposed等结构后的主语从句中要用虚拟语气，即Should+动词原形或只用动词原形。如： Its important类这一类型主要包括It is (was) important (

23、necessary, desirable, imperative, advisable)that. . .句型。如：It is impossible that he should go home. 他不可能会回家去。 Its a pity类It is a pity that she should fare so badly. 她竟吃得这么差，真可怜。 Its desired类这种主语从句还常用在It is (was) desired (suggested, settled, proposed, requested, decided, etc. ) that.句型。如：It is request

24、ed that a vote be taken. 建议付诸表决。11) 表语从句、同位语从句中的虚拟语气 在advice, agreement, command, decision, decree, demand, determination, indication, insistence, order, preference, proposal, request, requirement, stipulation ，suggestion， idea，plan，order等名词后的表语从句、同位语从句中要用虚拟语气，即should+动词原形或只用动词原形。如： Our suggestion i

25、s that you（ should）be the first to go 我们的建议是你应该第一个去。12) 在 lest ，for fear that( 以免) , in case (以防)引导的目的状语从句中的虚拟语气在 lest ，for fear that( 以免) , in case (以防)从句中用should动词原形, should 可以省略. She walked quietly lest she (should) wake up her roommates. 她走得很轻以免吵醒她的室友。使用虚拟语气的主要句型谓语动词的虚拟形式例句表现在的虚拟条件句从句：用动词过去（be 多

26、用were）1. If I were you, I should study English.2. I would certainly go if I had time.主句：would/should/could/might+动词原形表过去的虚拟条件句从句：had + PP1. If you had taken my advice, you would not have failed in the test.2. If I had left a little earlier, I would have caught the train.主句：would/should/could/might +

27、have + PP表将来的虚拟条件句从句：用动词过去should +V原（were +to do）1. If it were to rain tomorrow, the meeting would be put off.2. If you came tomorrow, we would have the meeting.主句：would/should/could/might +have + PP省略 if 的条件句从句：用倒装形式，即把were,had等置于句首。(并只限were/ had)主句：根据虚拟的情况采取与从句相应的形式。1. Were I in school again(= If

28、I were in school again, I would work harder.)2. Were it not for the rain, (不能说Werent it for the rain, ) I would go swimming. 错综时间条件句（从句与主句所表示时间不一致）根据从句与主句表示的不同时进行调整。1.If you had worked hard yesterday, you would be tired now2. If we hadnt been working hard in the past few years, things woud be going

29、so smoothly.含蓄条件句（虚拟条件暗含在短语或上下文之中，从句不表现出来）(常见有but for“要不是” without等)根据句子表达的实际情况选用相应的虚拟条件句中的主句的动词形式1.Without air, there would be no living things.2.I would have given you more help, but I was busy now.名词性从句中的虚拟语气wish, “可惜”“就好了”，“悔不该”“但愿”wish后从句：与表各种时间的虚拟条件句中的从句动词形式基本相同。具体：，表与现在不能实现的愿望，从句用“过去时，be 用wer

30、e”.表与过去不能实现的愿望，从句用“had+PP 或 could/would +have +PP“. .表与将来不能实现的愿望，从句用“could/would +动词原形”1.I wish I were a bird.2. I wish I had known the answer.would rather 后的宾语从句would rather后从句：动词常用过去式1. I would rather they came tomorrowdemand, insist,suggest, command, order, require, request, desire等一类动词后的宾语从句（sug

31、gest表“暗示、隐含等”insist表“强调，力言等”不用虚拟语气。）从句谓语用“should+动词原形”，should可省。1. I suggest you (should)go at once.2. He suggested that he patients leg should be cut and this suggested that he was not good at the case.(注意两个suggest的准确翻译)“It is (was)+上述demand/suggest等动词过去分词（或important,natural,strange ,necessary等形容词）”后的主语从句从句谓语用“should+动词原形”，should可省。1. It ordered that the army (should) get there by 4 a.m.2. It is necessary that she (should) be sent there at once.order,suggestion,idea,plan, proposal, advice,