虚拟语气句型

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虚拟语气的几个常见句型

虚拟语气的几个常见句型

虚拟语气的几个常见句型河北安新中学田姝晨虚拟语气表示说话人所说的话不是事实,而是一种假设、愿望、怀疑或推测。

常见的用法有以下几种:一. if 引导的虚拟语气1. 表示与现在事实相反或假设的情况If I were you,I would take his advice. 如果我是你,我就会接受他的建议。

If there were no air or water, there would be no living things on the earth.如果没有空气和水,地球上就不会有生命。

2. 表示与过去事实相反或假设的情况If I had got there earlier, I could have met her.如果我早一点到那的话就能见到她了。

If he had followed my advice, he would not have made such a big mistake. 如果他听了我的话,他就不会犯这么大的错误了。

3. 表示与将来事实相反或假设的情况If it rained tomorrow, our picnic would be put off.If it should rain tomorrow our picnic would be put off.If it were to rain tomorrow our picnic would be put off.如果明天下雨,我们的野餐将要被推迟了。

注意:在if引导的虚拟条件句中,如果谓语动词是had, were 或should 时,可以将if 省略并把had, were或should提前。

如:Should it rain tomorrow, our picnic would be put off.Had he followed my advice he wouldn’t have made such a big mistake. Were I you I would take his advice.二: It is (high) time that sb did sth/ should do sth. 是该某人做某事的时候了。

虚拟语气的八种情况

虚拟语气的八种情况

No.1虚拟语气的常见类型和句型(1)由wish引起的表示愿望的虚拟语气A.用wish表示对现在的愿望时,它所引起的宾语从句中谓语动词形式为:过去式(be动词用were)。

B.用wish表示对将来的愿望时,它所引起的宾语从句中谓语动词形式为:would, could, might+ 动词原形。

C.wish用于对过去的事实表示一种不可能实现的愿望时,宾语从句中的谓语动词形式为:had+动词过去分词或could, would + have +动词过去分词。

The picture exhibition bored me to death; I wish I had not gone to it.---“I let Joe borrow our radio for the afternoon.”---“That’s all right, but I wish he would buy one of his own.”I wish that he weren’t so lazy.(2)had hoped引起的宾语从句中备用语动词形式为would+动词原形,表示一种过去未实现的愿望或令人失望的事。

His father had hoped that his son would go to business with him, but his son became an artist later.(3)would (had) rather, would as soon, would sooner和would prefer所引起的从句中要求用过去式表示当时或将来的情况,用过去完成时表示过去的情况,表示希望或婉转的责备。

例如:I’d rather you posted the letter right away. 我倒希望你把这封信立刻寄出去。

I would prefer he didn’t stay there too long.我倒希望他不要在那儿可得太久。

常见的虚拟语气句型

常见的虚拟语气句型

常见的虚拟语气句型一、虚拟语气用于非真实条件句中1.与现在事实相反的虚拟语气形式If+主语+动词的过去式(be要用were)……, 主句主语+would(或should, could, might)+动词原形。

2.与过去事实相反的虚拟语气形式If+主语+had+过去分词……, 主句主语+would(或should, could, might)+have+过去分词。

3.与将来事实相反的虚拟语气形式If+主语+动词的过去式(或were to +动词原形, 或should +动词原形)……, 主句主语+would(或should, could, might)+动词原形。

二、虚拟语气的其它句型1虚拟语气用在动词wish带的宾语从句中, 宾语从句的谓语动词形式为:①谓语动词用过去式(be用were)表示现在的情况。

例如: I wish I didn't have a cold. 但愿我没有感冒。

②谓语动词用过去完成式表示过去的情况。

例如: I wish I had seen you yesterday.③谓语动词用would(或could, might)+动词原形表示将来的情况。

例如: I wish you could come tomorrow. 但愿你明天会来。

注: as if(=as though)引导的从句和if only后面所跟的句子也要用虚拟语气, 其形式和动词wish所带的宾语从句的形式相同。

例如: When a pencil is partly in a glass of water, it looks as if it were broken.If only I had followed his advice. 若是我听了他的劝告就好了。

2用介词短语(without..., but for... )、副词(otherwise)表示某种假设的情况, 相当于if引导的虚拟条件句。

例如: Without electricity human life would be quite different today.3虚拟语气用在It +be +important(necessary, strange, natural)+that clause句型中, that clause的谓语动词应为“(should +)动词原形”。

虚拟语气常用句型

虚拟语气常用句型

1,was—were2,were,had在的时候,if省略,were,had提前3,从句中省略should4,It is…time that …should…例句:If I had not met you at that moment, I would have chased Mary.If I had not met you at that moment, I would stay with Mary now.If Mary were here now, I would chase her again.If Mary should come back here some day, Iwould chase her once more.需要使用虚拟语气的词,短语以及句型:一、句型:It is demanded…It is necessary …It is a pity…It is…time that …shouldWhether…or…二、词:Suggest/Insist+…(should)…三、短语1. as if, as though, seem as if,2.would rather, would (had) rather, would as soon, would sooner和would prefer+that…(should)…3.Supposing that, supposed that, given that…4.if it were not for…与现在事实相反,if it had not been for与过去事实相反but for that…but for+短语5.in case, so that ,unless, lest ,for fear thatWould have done 本来会Should have done 本来应该Could have done 本来可以/可能…May have done 本来可以…Might have done 本来可以…Must have done 一定已经…Needn’t have done 本来不需要…I would have had a trip to America last year, but my mother was ill, so I gave it up.If you were to smoke here, you would be punished.If you didn’t answer my question now, you would not get through the test.If you should open the door, you would find it is dangerous in it.Whether you like it or not, you should take it.。

虚拟语气十大句型

虚拟语气十大句型

虚拟语气的十大句型一、虚拟条件句:条件状语从句是非真实情况,在这种情况下要用虚拟语气。

1.条件从句与现在事实不一致,其句型为:句型1:If +主语+过去时,主语+ should (could, would, 或might) +动词原形(1) If I were you, I would study hard.(2) If it rained, I would not be here now.2.条件从句与过去事实不一致,其句型为:句型2:If +主语+had+过去分词,主语+ should(could, would, 或might)+ have +过去分词(3) If the doctor had come last night, the boy would have been saved.(4) If I had not studied hard, I would have failed in the exam last term. 3.条件从句与将来事实不一致,其句型为:句型3:If +主语+过去时/ should +动词原形/ were to+动词原形,主语+ should (could, would, 或might) +动词原形(5) If it should rain tomorrow, we would stay at home.(6) If I were to go to the moon one day, I could see it with my own eyes.(7) If you missed the film tonight, you would feel sorry.注意问题:1.If条件句中绝对不可以出现would。

2.根据句中的时间状语,有时可能出现“混合虚拟”的情况,即主句可能是现在的情况,条件句也许是发生在过去的情况,但都要遵守上述句型。

如:(8) If you had studied hard before, you would be a college student now and you would graduate from a college in four years’ time.3.条件句中如果出现were, had, should可省去if,将主语与这些词倒装。

虚拟语气15种句型

虚拟语气15种句型

3.as if / as though后的表语或状语从句 (与wish相同)
含义 动 词 形 式
例句
现在 did / were
He looks as if he knew the little girl.
过去 Have done
It appeared as if nothing had
happened.
5.动词形式为(should)+do 的虚拟
2. It’s + adj.+that 的主语从句 (adj: necessary / essential/
important / natural / strange / possible / impossible
eg. It is important that we should attend the meeting.
• 对过去的猜测 • 肯定 must have done • 否定 can / could not have done • 可能 may / might have done
• 本应该做(实际没有做,有责备意思) • should have done • shouldn’t have done • 本来有必要作(实际没有做,不含责
desire 命令:order / command/ 坚持:insist 不管是动词还是名词,不管是主动还是被动
,不管是引导主语从句, 宾语从句, 表语 从句还是同位语从句, 都要用(should) do
5.动词形式为(should)+do 的虚拟
• My suggestion is that we should listen to his opinion first.
It is time that we stopped work and went home.

高中英语虚拟语气的十大句型

高中英语虚拟语气的十大句型

高中英语虚拟语气的十大句型虚拟条件句:条件状语从句是非真实情况,在这种情况下要用虚拟语气。

1.条件从句与现在事实不一致,其句型为:句型1:If +主语+过去时,主语+should (could, would, 或might) +动词原形(1) If I were you, I would study hard.(2) If it rained, I would not be here now.2.条件从句与过去事实不一致,其句型为:句型2:If +主语+had+过去分词,主语+should(could, would, 或might)+have +过去分词(3) If the doctor had come last night, the boy would have been saved.(4) If I had not studied hard, I would have failed in the exam last term.3.条件从句与将来事实不一致,其句型为:句型3:If +主语+过去时/ should +动词原形/ were to+动词原形,主语+should (could, would, 或might) +动词原形(5) If it should rain tomorrow, we would stay at home.(6) If I were to go to the moon one day, I could see it with my own eyes.(7) If you missed the film tonight, you would feel sorry.注意问题:1.If条件句中绝对不可以出现would。

2.根据句中的时间状语,有时可能出现“混合虚拟”的情况,即主句可能是现在的情况,条件句也许是发生在过去的情况,但都要遵守上述句型。

如:(8) If you had studied hard before, you would be a college student now and you would graduate from a college in four years’time. 3.条件句中如果出现were, had, should可省去if,将主语与这些词倒装。

虚拟语气,汉译英句型

虚拟语气,汉译英句型

常考虚拟语气句型第一种:由“ if ”引导的虚拟句子1. 与现在的事实相反:[If --- + were/did---, --- + would do---]If I were you , I would marry him. 如果我是你,就会嫁给他。

2. 与过去的事实相反:[If --- + had done---, --- +would have done---]If you had worked hard , you would have passed the exam.如果你用功学习,就会通过考试了。

3. 与将来的事实可能相反:[If ---+ should do---, ---+ would do---]If it should rain tomorrow , what would you do ? 如果明天下雨,你怎么办?第二种:用在表示要求、建议、命令等的动词或名词从句中,从句谓语形式为:“---(should ) + do sth”(在美语中should常省去) 。

insist (坚持) , suggest (建议) , order(命令) , propose (建议) , demand (要求) , command (命令) , advise (建议) , desire (要求、请求) , request (请求) , require (需要、要求) , ask (要求) , prefer (宁愿), recommend(推荐) , arrange ( 安排) , advocate ( 拥护、提倡) ,maintain(坚决主张)等后面的宾语从句中。

第三种:用在“It + be + important (,necessary , natural , essen tial , strange , absurd , amazing , annoying , desirable, surprising , vital , advisable , anxious , compulsory , crucial , imperative , eager , fitting , possible , impossible , improper , obligatory , probable , preferable , strange , urgent 等, 以及insisted , suggested , ordered , requested , arranged , recommended 等) + that ---”结构中的that 引导的主语从句中,从句谓语形式为:“---(should ) + do sth”(在美语中should常省去) 。

虚拟语气例句1

虚拟语气例句1

1. If he were free, he would help us. 要是他有空的话,它会协助我们的。

2. If I had seen the film, I would have told you about it. 我假设看过这场电影,我会把电影内容告诉你了。

3. If I had got there earlier, I would have met Mr. Li. 假设我早点到那儿,我就会会到了李先生。

4. If you should miss the chance, you would feel sorry for it. 假设你错过了这次机会,你会难过的。

5. If I knew German,I would read the paper to you.我要是懂德语,我就会给你读这篇文章。

6. If he were here,we could ask him.假设他在这里,我们会问他的。

7. If I were you, I would accept his offer.我要是你,就接受他的协助。

8. If I were a bird, I would fly to you. 假设我是一只鸟,我会飞到你身边。

9. If it were to rain(=Should it rain=Rained) tomorrow, we would not go for a picnic. 假设明天下雨的话,我们就不去野炊了。

10. If it were to rain tomorrow, the football match would be put off.11. If he had taken my advice, he would have succeeded in the competition.12. If you had come a few minutes earlier, you would have met him.假设你早来几分钟,你就会碰上他。

虚拟语气超详细讲解

虚拟语气超详细讲解

虚拟语气超详细讲解虚拟语气类型一、(should)+do1、<无论词性,无论其从句,一律用should+do, should可省略>建议advise, suggest, propose,recommendn命令order, command请求ask, demand, require, request坚持insist 敦促urge 希望desire 指示direct**suggest表“暗示”insist表“坚持认为”不用虚拟语气The man insisted that he had never stolen the moneyThe smile on his face suggested that he had passed the examination.I suggested that he __________(stay)where he is.It is suggeated that he __________where he is.My suggestion is that he _________where he is.My suggestion that he ________where he is has been accepted.2、It is/was + 紧急,重要,奇怪/建议,要求,命令(带感情色彩)+that从句①important,natural,strange ,necessary,surprised, crucial, essential,②requested/suggested/desired/pro posed/ recommended/orderedIt is ordered/important that we (should) stay where we are.类型二Were 型虚拟语气基本原则:对现在虚拟:过去时did/were对过去虚拟:过去完成时had done对将来虚拟:过去时did/were to do或者would, might, could +动词原形1. if 条件句中的虚拟时间从句谓语形式主句谓语形式将来动词过去式(be用were)should + 动词原形were to + 动词原形would / should / might / could + 动词原形现在动词过去式(be 用were) would / should / might / could + 动词原形过去had +动词过去分词would / should / might / could have + 动词过去分词1.1 与现在事实不一致,其句型为:If +主语+did ,主语+should (could, would, 或might )+do .If I were you, I would study hard. (可倒装)If it rained, I would not be here now.1.2 与过去事实不一致,句型为:If +主语+had +done ,主语+should (could, would, 或might )+have +done. If the doctor had come last night, the boy would have been saved. (可倒装)1.3 将来事实不一致,句型为:If should were to 主语++do ,主语+should (could ,would, 或might )+do. If it should rain tomorrow, we would stay at home.(可倒装)If I were to go to the moon one day, I could see it with my own eyes.(可倒装) If you missed the film to night, you would feel sorry.(混合虚拟)难点:①在条件句中如果出现were, had, should 可省去if ,将主语与这些词倒装 Had the doctor come last night , the boy would havesaved.Were I to go to the moon one day , I would see it with my own eyes.Should it rain tomorrow , we would stay at home.②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”,常常表现为if+过去虚拟+主句现在虚拟If you had followed my advice, you would be better now.If you had studied hard before, you would be a college student now.2. wish 后面的宾语从句中与现在愿望不一致: 主语+did ; I wish I were you.与过去愿望不一致: 主语+had +done ;I wish I had visited the white House when I was in the states.与未来愿望不一致: 主语+would (could )+do 。

虚拟语气特殊句型

虚拟语气特殊句型
要是我没错过火车就好了!
(2) = as long as常用陈述语气.
We can surely overcome these difficulties if only we are closely united.如果我们紧密团结就一定能战胜一切困难。
5.It’s necessary /strange/ natural/ important + that-Clause从句中的动词要用虚拟,即(should)+动词原形
(暗含条件是butfor your help)
(4)This same thing, happening in wartime, would lead to a disaster.
(条件暗含在分词短语happening in wartime中)
(5)He must have the strength of a hippopotamus, or he never could have vanquished that great beast.
(2)我宁愿不再见到你。
I’d rather I didn’t see you again.
(3)我倒希望他们和我一起去。
I would rather they went with me.
注意:如果表示的事情可能会发生,那么状语从句中的谓语动词可用陈述语气。
It looks as if you are tired.
含蓄条件句非真实条件句中的条件从句有时不表现出来只暗含在上下文中这种句子叫做含蓄条件句
虚拟语气特殊句型
注意:在主语+would (had) rather+that宾语从句中,从句谓语一般用过去式表示虚拟形式。例如:
(1)我真希望你告诉我真相。

虚拟语气15种句型总结

虚拟语气15种句型总结

C.didn’t hurt; would go
D.didn’t hurt; would have gone
17 21 19
2.wish 后的宾语从句 = if only
含义
动词形式
对现状 表达愿望 Did / were
对过去表示 遗憾/后悔
Had done
例句
I wish I had a little lab of my own.
备意思)
• Need have done • Needn't have done
Practice
1. If I _k_n_e_w__ (know) her address, I would write to her. 2. What would you have done if you _h_a_d__m__is_s_e_d(miss) the train? 3. If he h__a_d_n_o_t_b__ee_n_ il(lnot be ill ), he would have done something. snows 4. If itw__er_e__to__/s_h_o_u_l_d__sn_o_w__/_s_n_o_w_e_d(snow) tomorrow, we _sh__o_u_ld__g_e_t_u_p_(get up) early.
• My suggestion that we should listen to his opinion first is being discussed.
• 注意当insist—硬说,suggest—表明, 不能有虚拟语气。
5.动词形式为(should)+do 的虚拟
2. It’s + adj.+that 的主语从句 (adj: necessary / essential/

虚拟语气讲义(15个句式)

虚拟语气讲义(15个句式)

虚拟语气讲义1.虚拟语气句型1If + were/ did/ (动词的过去式), 主语+would/ might/ should / could + do 。

(表示对现在的假设)eg. If I were you, I would not be so proud . 如果我是你,我不会如此自负.eg. I don’t have a cellphone. If I had one , it would be convenient for me to get in touch with others 我没有手机,如果我有手机的话,和别人联系就方便的多了。

eg. If I were in your position, I would think better of it .如果我处在你现在的境地,我会重新考虑然后放弃。

2. 虚拟语气句型2If + had done, 主语+would/ might/ should / could + have done表示对过去或已经发生事情的虚拟假设。

eg. What a pity it is that you didn’t attended the concert yesterday! If you had attended the concert, you would have seen the famous singer.真遗憾你昨天没有去听音乐会。

如果你去了,你就会见到那位名歌手。

eg. Anyone in his position would have done the same= If anyone had been in his position, he would have done the same.3. 虚拟语气句型3If + were/ did(动词过去式)/should/ were to do , 主语+would/ might/ should / could + do (表示对将来的假设).eg. If he should refuse (= if he were to refuse = if he refused ), it wouldn’t matter万一他拒绝了. 那也没有什么关系.eg. If you shouldn’t pass the college entrance e*amination, what would you do"万一你高考不中,你该怎么办?4. 虚拟语气条件句的倒装在虚拟条件句中,如果出现有were, had, should,可省去if,可将主语与这些词倒装,构成虚拟倒装句。

虚拟语气总结(简单实用)

虚拟语气总结(简单实用)

虚拟语气总结虚拟语气是一种动词形式,表示说话人的一种愿望,假设,怀疑,猜测,建议等含义,虚拟语气所表示的含义不是客观存在的事实。

一、主语+advise that… (would/ should) +动词原形…此类宾语从句中,其中的连接词that 以及情态动词would 或者should常可以省略。

类似的动词还有:ask 要求advise 劝告determine 决定decide 决定command 命令insist 坚持intend 打算propose 提议order 命令recommend 推荐request 要求r equire 要求suggest 建议demand要求desire 渴望比如:1. He insisted that all of us should be there on time by any means.2. He teacher suggested that we (should) clean the blackboard after class.二、It is important (necessary, strange, natural) that .... 此类的形式主语的真正主语,即主语从句的句型中。

类似的形容词还有:appropriate 适当的advisable 适当的,合理的better 较好的desirable 理想的essential 精华的preferable 优越的,较好的urgent 紧迫的vital 极其重要的下面几个过去分词也适用这个句型:desired, demanded, ordered, requested, suggested, recommended, required比如:1.It’s necessary that we should have a walk now. 我们有必要出去散散步。

2. It’s natural that she should do so. 她这样做是很自然的。

最基本的虚拟语气句型

最基本的虚拟语气句型

: 最基本的虚拟语气句型:1. 虚拟现在时表示与现在事实相反的假设,其if 从句的谓语形式用动词的过去式(be 一般用were),主句用would/ should/ could/ might +动词原形。

If places were alike, there would be little need for geographers.如果各个地方都一样,就不需要地理学家了。

2. 虚拟过去时是表示与过去事实相反的假设,if 从句的谓语形式用过去完成时即had+过去分词,主句用would / should / could / might + have +过去分词。

If he had known your address yesterday,he would have telephoned you.3. 虚拟将来时是表示对将来实现的可能性很小的或不确定的假设。

If从句的谓语形式用一般过去式或用were to / should +动词原形,主句用would / should/could/ might +动词原形。

If he were to leave today, he would get there by Friday4.省略if 采用倒装语序的条件句。

有时可以把含有助动词、情态动词、be或have的虚拟条件句中的连词if省去,而将had , should, were等词提到主语之前,即用倒装结构。

If he had worked harder, he would have got through the exams.==>Had he worked harder, he would have got through the exams.If he were to leave today, he would get there by Friday.==>Were he to leave today, he would get there by Friday.If I were in your place, I wouldn’t do that.==>Were I in your place, I wouldn’t do that.5. 有时虚拟条件句并没用if 从句表示出来,而是用介词短语(otherwise, or, without, but for)、上下文或其它方式来表示。

什么是虚拟语气

什么是虚拟语气

什么是虚拟语气?虚拟语气(Subjunctive Mood)是英语中一种用来表达假设、愿望、建议、要求等非真实情况的语气。

与陈述语气不同,虚拟语气用于表达与事实相反或与现实不一致的情况。

虚拟语气常见于条件句、表达愿望的句子和建议命令等语境中。

虚拟语气的使用有以下几个方面:1. 条件句中的虚拟语气:- If I were rich, I would travel around the world.(如果我富有,我会周游世界。

)- If he had studied harder, he would have passed the exam.(如果他学习更努力,他就会通过考试。

)在虚拟语气的条件句中,谓语动词的过去式常用于表示与现实相反的假设情况。

对于"be"动词,无论主语是什么,都使用"were"。

2. 表达愿望和建议的虚拟语气:- I wish I were taller.(我希望我更高。

)- It's important that she study for the test.(她应该为考试学习很重要。

)在表达愿望和建议时,虚拟语气常用于动词的基本形式,而不是现实情况下的时态形式。

3. 命令和要求的虚拟语气:- I insist that he be here on time.(我坚持要求他准时到达。

)- It is essential that they submit the report by Friday.(他们必须在星期五之前提交报告。

)当我们使用虚拟语气来表达命令和要求时,谓语动词常用于动词的基本形式,并使用"that"引导从句。

虚拟语气在英语中的使用非常灵活,可以用于不同的语境和句型中。

掌握虚拟语气的使用可以帮助我们准确地表达假设、愿望、建议和要求等非真实情况,从而提升英语表达的准确性和表达能力。

英语语法:三个常考虚拟语气句型

英语语法:三个常考虚拟语气句型

英语语法:三个常考虚拟语气句型一、句型介绍这两个句型是If it weren’t for…和If it hadn’t 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 weren’t for water, no plant could grow. 要是没有水植物就无法生长。

You wouldn’t be anywhere if it weren’t for Ruth. 若不是有鲁思你不会有任何成就。

If it hadn’t been for the doctor, he would have died.要不是医生救了他,他就会死了。

If it hadn’t been for Mary, I might not have understood. 要不是有玛丽,我可能还不理解。

二、与but for, without等替换这两个句型有时可用but for, without等替换。

如:要不是有你帮忙,我们是不会成功的。

If it hadn’t been for your assistance we wouldn’t have succeeded.=But for your assistance we wouldn’t have succeeded.=Without your assistance we wouldn’t have succeeded.三、时间上的同与异原则上说,if it weren’t [wasn’t] for 用于谈论现在的情况,而if it hadn’t been for 用于谈论过去的情况。

但实际上if it weren’t [wasn’t] for有时也可用于谈论过去的情况:If it weren’t for their help, we couldn’t have got over the difficulties. 要不是他们协助,这些困难我们是克服不了的。

虚拟语气句型

虚拟语气句型

常用虚拟语气句型1.if条件句条件状语从句可分为真实条件句,即条件满足,事实就发生的情况;和非真实条件句,即与事实相反或难以实现的假设情况。

虚拟语气的基本句型,即是这种非真实条件状语从句。

If I had got up early, I wouldn’t have been late.If I were to do it, I should do it at once.【说明】①在非正式英语中,条件从句中的第一、第三人称单数主语后可用was代替were。

If I was you, I would accept the invitation.②主句中的would可用于各种人称,而should只用于第一人称。

③在主句中也可用情态动词could,might代替would,should。

If I had had enough time, I might have done it better.④条件从句中的谓语动词含有were,had,should时,可以省略从属连接词if,然后采用倒装结构,把were,had,should移到主语前面。

Should you pass this way, do drop in for a visit.= If you should pass this way,…… Had I known it, I wouldn’t had made such a silly mistake.= If I had known it,…… Were it left to me to decide whether I should have a job immediately or go on to study at college, I wouldn’t hesitate a moment to choose the latter.= If it were left to me to decide……..⑤在同一个句子中不能一部分表示真实条件,另一部分表示非真实条件。

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虚拟语气
一、if 引导的虚拟条件句(表示与事实相反的假设):
现在:If+主语+过去式/were ,主语+should/would/could/might+动词原形
过去:If+主语+had+过去分词,主语+should/would/could/might+have+过去分词
过去式/were
将来:If+主语
+ should +
动词原形, 主语+should/would/could/might +动词原形
were to + 动词原形
另外:有些词,如:or /otherwise (否则);without (没有);but for (要不是……)等,表示一个隐含的条件,所用的虚拟语气与if 引导的虚拟条件句结构相同
注意:if 引导的虚拟条件句中,谓语部分含有were /had /should ,可将引导词if 省略,并将were /had /should 提到句首。

二、wish 之后接的宾语从句(表示不可能实现的愿望):
过去式/were (现在)
Wish +(that ) had + 过去分词 (过去)
would/could/might +动词原形 (将来)
三、as if/as though 常与seem/look/appear 等动词连用,表示“看起来似乎……好象……”;以及if only 表示“要是……该多好啊”所用的虚拟语气结构与wish 结构相同;
四、虚拟语气在名词从句中的运用:
1、表示“命令”、“建议”、“要求”、“坚持”等词后所带的名词从句用虚拟语气,should 可以省略。

记忆口诀:
insist
2、动词 order +(that )+ 主语+ advise/suggest/recommend (宾语从句)
require
3、名词:advice/suggestion/order /request之后接表语从句或同位语从句,谓语部
4、在主语从句中:
It is suggested/required/ordered/…that + 主语+
It is important/strange/necessary/…that + 主语+
过去式(现在/将来)
五、would rather + sb. +
had + 过去分词(过去)
六、It is (high) time that + 主语+ 过去式。

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