if虚拟语气，If引导的虚拟语气是什么

1，If引导的虚拟语气是什么

是个句子

If引导的虚拟语气是什么

2，IF的虚拟语气怎么表达

if +过去时,...would/should do sth 对现实（或对将来）的虚拟语句 if +过去完成时，......would/should do sth 对过去的虚拟语句

IF的虚拟语气怎么表达

3，IF的虚拟语气

由于字太多,不让写上去,你自己到这里看. 虚拟语气主要用在非真实条件句(if从句) http://www.pen123.com/bbs/ShowPost.asp?ThreadID=353

IF的虚拟语气

4，if虚拟语气的用法

主句用一般过去时，从句用should do的形式，should 可以省略。

选a。这个就是主将从现的用法这个用在条件状语从句当中意思是：主句用一般将来时，从句从一般现在时(如果主句用过去将来时，则) 如果将你问句换为陈述句可以这么说 i will stay at home,if it rains tomorrow如果条件状语从句当中的时态不是一般现在时，那么一定是虚拟语气，应用完成时态

5，IF虚拟语气的三种时态是什么

1、提出将来会发生的事：主句：主语＋would/should/might/could＋动词原形；从句：should＋动词原形/were to＋动词原形；2、提出现在的条件：主句：主语＋would/should/might/could＋动词原形；从句：动词过去式；例句：If he studied at this school, he would know the enviornment around the school very much.3、提出过去的未发生的条件：主句：主语＋would/should/might/could have＋动词过去分词从句：had＋动词过去分词例句： If I had read the book, I would have told you about it.扩展资料if的用法if作为从属连词,可引导条件状语从句、让步状语从句和名词从句。if引导条件状语从句,从句可为真实条件从句,也可为虚拟条件从句。如为真实条件从句,谓语用陈述语气,表示可能性很大,作“假使”“如果”解,通常用一般现在时代替一般将来时; 如果if从句中用will,表示意愿。从句如为虚拟条件从句,谓语动词要用虚拟语气,表示可能性不大或与过去事实相反,作“要是,假如”解。可指过去的情况,也可指现在和将来的情况。指将来情况时可用were to或should。在现代口语中,一、三人称后常用was代替were。if引导的虚拟条件句中,助动词were,should,had可以移至主语前,此时if可省略。if引导的条件从句中可以省略be和主语。if引导的条件从句,有时后接only以加强其语气,表示说话人非常盼望某人提出的条件能够实现。if可引导让步状语从句,作“虽然,即使”解,常和even连用。if可引导名词性从句,作“是否”解,常放在ask, doubt, know, learn, see, wonder等动词后。一般用在口语中,而且不能用于句首。

1、表示与现在事实相反的情况从句：If+主语+动词一般过去时(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）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：If I had got there earlier，I should/would have met her.如果我早到那儿，我就会见到她。（事实：去晚了）3、表示与将来事实相反从句：①if+主语+were to do②if+主语+should+do③if+主语+动词一般过去式（be动词用were）主句:主语+should/would/might/could+do: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，不可能）

1、提出将来会发生的事：主句：主语＋would/should/might/could＋动词原形从句：should＋动词原形/were to＋动词原形If he should go to Harvard University, he would make full use of his time.如果他要上哈佛大学的话，他就会充分利用他的时间了。2、提出现在的条件：主句：主语＋would/should/might/could＋动词原形从句：动词过去式If he studied at this school, he would know the enviornment around the school very much.如果他在这所学校学习的话，他会很了解周边环境。3、提出过去的未发生的条件：主句：主语＋would/should/might/could have＋动词过去分词从句：had＋动词过去分词If I had read the book, I would have told you about it.我如果看过本书，我会把内容告诉你了。扩展资料虚拟语气用法：1、用在含蓄条件句中句子中，假设的情况不用条件从句表示出来，而是用一个介词短语来表示，句子的谓语形式也可遵循上表的规则。这种用法也常见于or, or else, otherwise和but后面的分句中。例如：Without music, the world would be a dull place.2、用在错综时间条件句中有时候，条件从句表示的动作和主句表示的动作发生的时间并不一致，这时，谓语动词的形式要根据表示的时间来调整，这种句子可称作错综时间条件句。例如：If you hadnt watched television so late, you wouldnt be so sleepy now.此句为时间交错的虚拟条件句，从句表示与过去事实相反的假设，主句则假设与现在情况相反3、用在wish后的宾语从句中这种句子主要表示愿望，that常省略。若指现在或将来的愿望，从句用过去时;若指过去没有实现的愿望，从句用过去完成时。例如：I wish I had learned to play chess.(与过去事实相反)若wish 后的宾语从句中用would，可以表示请求，通常意味着说话人的不快或不满。例如：I wish you would help us.4、用在if only感叹句中当表示“但愿”，“要是…就好”时，它的用法和wish基本相同，只是更富有感情色彩，表示一时很难实现的愿望。例如：If only I knew what you wanted.5、用在以as if (as though) 引出的方式状语从句中当表示过去想象中的动作或情况时，用过去完成时;当表示和现在事实相反或对现在情况有所怀疑时，用一般过去时。例如：The old couple loved the orphan girl as if she had been their daughter.6、用在某些虚拟的定语从句中He was the very person I should have been wished to see.7、用以表示说话人的主观愿望或选择，仅用在一些惯用句型的从句中Id rather they came tomorrow.但had rather, would rather, would just as soon, would sooner等惯用语如用在简单句中，其后都用不加to的动词不定式。例如：Id rather die than give up my principle.

6，关于if的虚拟语气

原发布者:cyz091214如果上天能够再给我一次机会,我会对那个女孩说：“我爱你”。IfIhadonemorechance,Iwouldsaytothegirl“Iloveyou”.IfIhadonemorechance,Iwouldgotouniversityagain.虚拟语气定义：用来表示说的话不是事实，或者是不可能发生的情况，而是一种愿望，建议，假设的语气叫虚拟语气。if引导的虚拟条件句Ifsheinvitedme,Iwouldgototheparty.假如她邀请我参加聚会，我就去。Ifshehadinvitedmeyesterday,Iwouldhavegonetotheparty.假如她昨天邀请我参加聚会，我就去了。Ifsheshouldinvitemetomorrow,Iwouldgotothepart如果她明天邀请我参加聚会，我会去的。1.对现在的虚拟if条件句中的谓语动词动词用过去形式(be动词用were)主句的谓语动词should/would/could/might+动词原形IfIwereyou,Iwould/could/should/mightdothat.IfIhadmoney,Iwould/could/should/mightbuythathouse.2.对过去的虚拟if条件句中的谓语动词haddone主句的谓语动词should/would/could/might+havedoneIfIhadknownthatyesterday,Iwould/could/should/mighthavetoldyou.Ifshehadnteatensomuchcandy,shewouldnthavehadherteethpulledout.3.与将来事实相反的假设if条件句中的谓语动词1.动词过去式(be动词用were)2.should+动词原形3.wereto+动词原形

should常用于第一人称和第三人称would表示结果might只表示可能性could表示能力、可能性、允许、虚拟语气常考错综句和wish+宾语从句、在wish宾语从句中不能should（警记）其余情况均分析句子意思、在适合情景用适应的词

有时你也可以选择用could或 might，但是如果是选择题的话肯定不能这些词都在选项里，那就又好几个答案了。没法选了。我做四级的时候就碰到过各种虚拟语气的题，比如有的要倒装，有的前半句用虚拟、后半句用真实语气。。。。这都要读懂题判断的、、、下面是总结。。你参考参考、1. 虚拟语气在if条件状语从句中的用法与现在事实相反：（从句谓语动词）动词的过去式(be用were而不用was) （主句谓语动词） should/ would /could/ might+动词原形与过去事实相反：（从句谓语动词） had + 过去分词（主句谓语动词） should/ would/could/might + have+过去分词与将来事实相反：（从句谓语动词）1.should+动词原形 2.动词过去式 3.were to+动词原形（主句谓语动词） should/ would/ could/ might +动词原形2. Wish 引导的宾语从句与现在事实相反：过去时（were）与过去事实相反： had+过去分词与将来事实相反： would/could/might+动词原形 eg. I wish I were a bird. I wish he hadnt done that. (do) I wish I would be rich in the future. 3. 表示要求,命令,建议的虚拟语气 Keys：1). insist 2). order, command 3). advise, suggest, and propose 4). demand, require, request, desire 这些动词后面的宾语从句要使用虚拟语气用法。即从句中的动词使用should + 动词原形, 或者省略should.直接家原形 eg. The doctor suggested that he (should) try to lose his weight. He insisted that we (should) tell him the news. 虚拟语气(二) the Subjunctive mood （假设语气）1. 表语从句、同位语从句中的虚拟语气在suggestion， proposal， order， plan， idea， advice， decision等需要有内涵的名词后面的表语从句、同位语从句中，要使用虚拟语气。其谓语动词应用：should＋原形动词。另外连接从句的that不能省略。 eg. My suggestion is that we should go there at once. What do you think of his proposal that we should put on a play at the English evening?2、 Its necessary/strange/natural/ important/pity/no wonder/impossible + that Clause 从句中的动词要用虚拟, 即(should)+动词原形 eg. It is strange that he (should) say so. 他居然会这样说，真是奇怪。 It is a great pity that you (should) think so. 他居然会这样想，真是一件憾事。 It is natural that a bird (should) rest in trees. 鸟在树上安歇是很自然的。3、在It is/was suggested /ordered / demanded / proposed / etc. 结构中要使用虚拟语气 eg. Its requested that we （should） keep the stability of the society for the peoples peaceful life. Its suggested that the plan be carried out. It is ordered that all the troops (should) withdraw three miles away. 根据命令，所有部队撤至三英哩以外。 It is arranged that he leave for Canada on Friday. 照安排，他星期五动身去加拿大。 It is suggested that the English evening be held on Saturday. 4. would rather 后的宾语从句。 eg. I would rather you could teach me again. The manager would rather that his secretary went to the meeting instead of him .经理宁愿他的秘书代替他去开会。5. as if， as though引导的从句。以as if 、as though（似乎，仿佛）引出的方式状语从，如果表示真实情况应该用直陈语气；如果表示非真实情况则应该用虚拟语气, 其谓语动词的虚拟式与wish后面宾语从句中谓语动词的虚拟式相同。 eg. The little boy knows so many things as if he was a man.6. 由if only （要是……，那该多好啊！）引导的惊叹句。如： If only I had passed the test ！比较if only与only if： only if表示"只有"；if only则表示"如果……就好了"。If only也可用于陈述语气。 eg. I wake up only if the alarm clock rings. 只有闹钟响了，我才会醒。 If only the alarm clock had rung.　　　当时闹钟响了，就好了。 If only he comes early.　　　　　　　但愿他早点回来。7. It is (high) time that It is (high) time that 后面的从句谓语动词要用过去式或用should加动词原形，但should不可省略。 eg. It is time that the children went to bed. It is high time that the children should go to bed. It is high time that we had our lunch. 该是我们吃午饭的时候了。 It is time that he made up his mind. 该是他作出决定的时候了。

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。he talks as if he had been abroad. 他说起话来好像曾经出过国。

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