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1，If引導(dǎo)的虛擬語氣是什么

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If引導(dǎo)的虛擬語氣是什么

2，IF的虛擬語氣怎么表達

if +過去時,...would/should do sth 對現(xiàn)實（或?qū)恚┑奶摂M語句 if +過去完成時，......would/should do sth 對過去的虛擬語句

IF的虛擬語氣怎么表達

3，IF的虛擬語氣

由于字太多,不讓寫上去,你自己到這里看. 虛擬語氣主要用在非真實條件句(if從句) http://www.pen123.com/bbs/ShowPost.asp?ThreadID=353

IF的虛擬語氣

4，if虛擬語氣的用法

主句用一般過去時，從句用should do的形式，should 可以省略。

選a。這個就是主將從現(xiàn)的用法這個用在條件狀語從句當中意思是：主句用一般將來時，從句從一般現(xiàn)在時(如果主句用過去將來時，則) 如果將你問句換為陳述句可以這么說 i will stay at home,if it rains tomorrow如果條件狀語從句當中的時態(tài)不是一般現(xiàn)在時，那么一定是虛擬語氣，應(yīng)用完成時態(tài)

5，IF虛擬語氣的三種時態(tài)是什么

1、提出將來會發(fā)生的事：主句：主語＋would/should/might/could＋動詞原形；從句：should＋動詞原形/were to＋動詞原形；2、提出現(xiàn)在的條件：主句：主語＋would/should/might/could＋動詞原形；從句：動詞過去式；例句：If he studied at this school, he would know the enviornment around the school very much.3、提出過去的未發(fā)生的條件：主句：主語＋would/should/might/could have＋動詞過去分詞從句：had＋動詞過去分詞例句： If I had read the book, I would have told you about it.擴展資料if的用法if作為從屬連詞,可引導(dǎo)條件狀語從句、讓步狀語從句和名詞從句。if引導(dǎo)條件狀語從句,從句可為真實條件從句,也可為虛擬條件從句。如為真實條件從句,謂語用陳述語氣,表示可能性很大,作“假使”“如果”解,通常用一般現(xiàn)在時代替一般將來時; 如果if從句中用will,表示意愿。從句如為虛擬條件從句,謂語動詞要用虛擬語氣,表示可能性不大或與過去事實相反,作“要是,假如”解。可指過去的情況,也可指現(xiàn)在和將來的情況。指將來情況時可用were to或should。在現(xiàn)代口語中,一、三人稱后常用was代替were。if引導(dǎo)的虛擬條件句中,助動詞were,should,had可以移至主語前,此時if可省略。if引導(dǎo)的條件從句中可以省略be和主語。if引導(dǎo)的條件從句,有時后接only以加強其語氣,表示說話人非常盼望某人提出的條件能夠?qū)崿F(xiàn)。if可引導(dǎo)讓步狀語從句,作“雖然,即使”解,常和even連用。if可引導(dǎo)名詞性從句,作“是否”解,常放在ask, doubt, know, learn, see, wonder等動詞后。一般用在口語中,而且不能用于句首。

1、表示與現(xiàn)在事實相反的情況從句：If+主語+動詞一般過去時(Be動詞用were)主句：主語+ should/would/might/could+do：If I were you，I would take an umbrella.如果我是你，我會帶把傘。（事實：我不可能是你）2、表示與過去事實相反的情況從句：If+主語+had+done主句：主語+should/would/might/could+have done：If I had got there earlier，I should/would have met her.如果我早到那兒，我就會見到她。（事實：去晚了）3、表示與將來事實相反從句：①if+主語+were to do②if+主語+should+do③if+主語+動詞一般過去式（be動詞用were）主句:主語+should/would/might/could+do:If he should come here tomorrow，I would talk to him.如果他明天來這兒的話，我就跟他談?wù)劇＃ㄊ聦崳簛淼目赡苄院苄。豢赡埽?/section>

1、提出將來會發(fā)生的事：主句：主語＋would/should/might/could＋動詞原形從句：should＋動詞原形/were to＋動詞原形If he should go to Harvard University, he would make full use of his time.如果他要上哈佛大學(xué)的話，他就會充分利用他的時間了。2、提出現(xiàn)在的條件：主句：主語＋would/should/might/could＋動詞原形從句：動詞過去式If he studied at this school, he would know the enviornment around the school very much.如果他在這所學(xué)校學(xué)習(xí)的話，他會很了解周邊環(huán)境。3、提出過去的未發(fā)生的條件：主句：主語＋would/should/might/could have＋動詞過去分詞從句：had＋動詞過去分詞If I had read the book, I would have told you about it.我如果看過本書，我會把內(nèi)容告訴你了。擴展資料虛擬語氣用法：1、用在含蓄條件句中句子中，假設(shè)的情況不用條件從句表示出來，而是用一個介詞短語來表示，句子的謂語形式也可遵循上表的規(guī)則。這種用法也常見于or, or else, otherwise和but后面的分句中。例如：Without music, the world would be a dull place.2、用在錯綜時間條件句中有時候，條件從句表示的動作和主句表示的動作發(fā)生的時間并不一致，這時，謂語動詞的形式要根據(jù)表示的時間來調(diào)整，這種句子可稱作錯綜時間條件句。例如：If you hadnt watched television so late, you wouldnt be so sleepy now.此句為時間交錯的虛擬條件句，從句表示與過去事實相反的假設(shè)，主句則假設(shè)與現(xiàn)在情況相反3、用在wish后的賓語從句中這種句子主要表示愿望，that常省略。若指現(xiàn)在或?qū)淼脑竿瑥木溆眠^去時;若指過去沒有實現(xiàn)的愿望，從句用過去完成時。例如：I wish I had learned to play chess.(與過去事實相反)若wish 后的賓語從句中用would，可以表示請求，通常意味著說話人的不快或不滿。例如：I wish you would help us.4、用在if only感嘆句中當表示“但愿”，“要是…就好”時，它的用法和wish基本相同，只是更富有感情色彩，表示一時很難實現(xiàn)的愿望。例如：If only I knew what you wanted.5、用在以as if (as though) 引出的方式狀語從句中當表示過去想象中的動作或情況時，用過去完成時;當表示和現(xiàn)在事實相反或?qū)ΜF(xiàn)在情況有所懷疑時，用一般過去時。例如：The old couple loved the orphan girl as if she had been their daughter.6、用在某些虛擬的定語從句中He was the very person I should have been wished to see.7、用以表示說話人的主觀愿望或選擇，僅用在一些慣用句型的從句中Id rather they came tomorrow.但had rather, would rather, would just as soon, would sooner等慣用語如用在簡單句中，其后都用不加to的動詞不定式。例如：Id rather die than give up my principle.

6，關(guān)于if的虛擬語氣

原發(fā)布者:cyz091214如果上天能夠再給我一次機會,我會對那個女孩說：“我愛你”。IfIhadonemorechance,Iwouldsaytothegirl“Iloveyou”.IfIhadonemorechance,Iwouldgotouniversityagain.虛擬語氣定義：用來表示說的話不是事實，或者是不可能發(fā)生的情況，而是一種愿望，建議，假設(shè)的語氣叫虛擬語氣。if引導(dǎo)的虛擬條件句Ifsheinvitedme,Iwouldgototheparty.假如她邀請我參加聚會，我就去。Ifshehadinvitedmeyesterday,Iwouldhavegonetotheparty.假如她昨天邀請我參加聚會，我就去了。Ifsheshouldinvitemetomorrow,Iwouldgotothepart如果她明天邀請我參加聚會，我會去的。1.對現(xiàn)在的虛擬if條件句中的謂語動詞動詞用過去形式(be動詞用were)主句的謂語動詞should/would/could/might+動詞原形IfIwereyou,Iwould/could/should/mightdothat.IfIhadmoney,Iwould/could/should/mightbuythathouse.2.對過去的虛擬if條件句中的謂語動詞haddone主句的謂語動詞should/would/could/might+havedoneIfIhadknownthatyesterday,Iwould/could/should/mighthavetoldyou.Ifshehadnteatensomuchcandy,shewouldnthavehadherteethpulledout.3.與將來事實相反的假設(shè)if條件句中的謂語動詞1.動詞過去式(be動詞用were)2.should+動詞原形3.wereto+動詞原形

should常用于第一人稱和第三人稱would表示結(jié)果might只表示可能性could表示能力、可能性、允許、虛擬語氣常考錯綜句和wish+賓語從句、在wish賓語從句中不能should（警記）其余情況均分析句子意思、在適合情景用適應(yīng)的詞

有時你也可以選擇用could或 might，但是如果是選擇題的話肯定不能這些詞都在選項里，那就又好幾個答案了。沒法選了。我做四級的時候就碰到過各種虛擬語氣的題，比如有的要倒裝，有的前半句用虛擬、后半句用真實語氣。。。。這都要讀懂題判斷的、、、下面是總結(jié)。。你參考參考、1. 虛擬語氣在if條件狀語從句中的用法與現(xiàn)在事實相反：（從句謂語動詞）動詞的過去式(be用were而不用was) （主句謂語動詞） should/ would /could/ might+動詞原形與過去事實相反：（從句謂語動詞） had + 過去分詞（主句謂語動詞） should/ would/could/might + have+過去分詞與將來事實相反：（從句謂語動詞）1.should+動詞原形 2.動詞過去式 3.were to+動詞原形（主句謂語動詞） should/ would/ could/ might +動詞原形2. Wish 引導(dǎo)的賓語從句與現(xiàn)在事實相反：過去時（were）與過去事實相反： had+過去分詞與將來事實相反： would/could/might+動詞原形 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,建議的虛擬語氣 Keys：1). insist 2). order, command 3). advise, suggest, and propose 4). demand, require, request, desire 這些動詞后面的賓語從句要使用虛擬語氣用法。即從句中的動詞使用should + 動詞原形, 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. 虛擬語氣(二) the Subjunctive mood （假設(shè)語氣）1. 表語從句、同位語從句中的虛擬語氣在suggestion， proposal， order， plan， idea， advice， decision等需要有內(nèi)涵的名詞后面的表語從句、同位語從句中，要使用虛擬語氣。其謂語動詞應(yīng)用：should＋原形動詞。另外連接從句的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 從句中的動詞要用虛擬, 即(should)+動詞原形 eg. It is strange that he (should) say so. 他居然會這樣說，真是奇怪。 It is a great pity that you (should) think so. 他居然會這樣想，真是一件憾事。 It is natural that a bird (should) rest in trees. 鳥在樹上安歇是很自然的。3、在It is/was suggested /ordered / demanded / proposed / etc. 結(jié)構(gòu)中要使用虛擬語氣 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. 根據(jù)命令，所有部隊撤至三英哩以外。 It is arranged that he leave for Canada on Friday. 照安排，他星期五動身去加拿大。 It is suggested that the English evening be held on Saturday. 4. would rather 后的賓語從句。 eg. I would rather you could teach me again. The manager would rather that his secretary went to the meeting instead of him .經(jīng)理寧愿他的秘書代替他去開會。5. as if， as though引導(dǎo)的從句。以as if 、as though（似乎，仿佛）引出的方式狀語從，如果表示真實情況應(yīng)該用直陳語氣；如果表示非真實情況則應(yīng)該用虛擬語氣, 其謂語動詞的虛擬式與wish后面賓語從句中謂語動詞的虛擬式相同。 eg. The little boy knows so many things as if he was a man.6. 由if only （要是……，那該多好啊！）引導(dǎo)的驚嘆句。如： If only I had passed the test ！比較if only與only if： only if表示"只有"；if only則表示"如果……就好了"。If only也可用于陳述語氣。 eg. I wake up only if the alarm clock rings. 只有鬧鐘響了，我才會醒。 If only the alarm clock had rung.　　　當時鬧鐘響了，就好了。 If only he comes early.　　　　　　　但愿他早點回來。7. It is (high) time that It is (high) time that 后面的從句謂語動詞要用過去式或用should加動詞原形，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. 該是我們吃午飯的時候了。 It is time that he made up his mind. 該是他作出決定的時候了。

以as if (as though)引導(dǎo)的方式狀語從句或表語從句，有時用虛擬語氣，若表示與現(xiàn)在事實相反，謂語動詞用一般過去時；若表示與過去事實相反，用過去完成時；表示將來的可能性不大，用would (might, could)+動詞原形：he acts as if he knew me. 他顯得認識我似的。they treat me as though i were a stranger. 他們待我如陌生人。he talks as if he had been abroad. 他說起話來好像曾經(jīng)出過國。