虛擬語氣的用法，用虛擬語氣翻譯句子如果不是你的幫助我不可能按時完成工作 _語氣

1，用虛擬語氣翻譯句子如果不是你的幫助我不可能按時完成工作 if_it_were_not_for_your_help,I_could_not_have_finished_the_work_on_time對將來的假設(shè)有2種。可能的就不用虛擬不可能或不太可能就用虛擬，比如如果我要成了億萬富翁。。。。如果我當(dāng)了聯(lián)合國秘書長。。。

2，虛擬語氣中be動詞一定用were嗎對的，虛擬語氣中，如果是be動詞，就一定得用were，沒有用was的情況哦，請及時采納，謝謝如果是由was變化得到，應(yīng)該改用were；其他情況如果用到be動詞，還可以用should+動詞原形的形式。不一定，were只限于使用在表示現(xiàn)在的虛擬語氣中，而虛擬語氣有三種：現(xiàn)在，過去，將來

3，would rather 后跟的虛擬語氣我寧愿你現(xiàn)在不去想它would rather 后的虛擬語氣句子里的動詞本來就必須用過去式不是，would rather本身后面就是加DO原型的，但是這里，因?yàn)閅OU做的事事過去式，所以本題用過去式。意思就是現(xiàn)在我寧愿你（當(dāng)時）沒有做這件事。for the time being是“目前”的意思，前面是現(xiàn)在時時后面用一般過去時來表示現(xiàn)在（前面是將來時時后面也用一般過去時）,前面是過去時時后面用過去完成時來表示過去的動作或狀態(tài) 我倒覺得你當(dāng)前不必考慮它。對現(xiàn)在的虛擬，謂語要用過去時。我希望你不要想以后的事但實(shí)際上"你"肯定想了,所以用虛擬語氣,現(xiàn)在時的虛擬用過去時要的，這句話的意思：我寧愿你不要考慮它。對現(xiàn)在的虛擬，謂語要用過去時【虛擬語氣的用法，用虛擬語氣翻譯句子如果不是你的幫助我不可能按時完成工作】

4，虛擬語氣的用法 1）虛擬語氣概念虛擬語氣用來表示說話人的主觀愿望或假想，而不表示客觀存在的事實(shí)，所說的是一個條件，不一定是事實(shí)，或與事實(shí)相反。虛擬語氣通過謂語動詞的特殊形式來表示。虛擬語氣常在表示條件和結(jié)果的狀語從句中。在表示與事實(shí)相反的虛擬語氣時動詞有三種時態(tài)：現(xiàn)在時，過去時，將來時。2）在條件句中的應(yīng)用條件句可分為兩類，一類為真實(shí)條件句，一類為非真實(shí)條件句。非真實(shí)條件句表示的是假設(shè)的或?qū)嶋H可能性不大的情況，故采用虛擬語氣。常見虛擬語氣用法1、真實(shí)條件狀語從句與非真實(shí)條件狀語從句eg .if he doesnt hurry up, he will miss the bus. ( 真實(shí)條件狀語)（不是虛擬語氣）if he was free, he would ask me to tell stories. （真實(shí)條件狀語）（不是虛擬語氣）if i were you, i would go at once. （非真實(shí)條件狀語從句）if there were no air, people would die. （非真實(shí)條件狀語從句）總結(jié)就是四個字：主將從現(xiàn)，主句用將來時，從句用一般現(xiàn)在時。2、虛擬語氣在非真實(shí)條件狀語從句中的用法及動詞形式① 表示與現(xiàn)在事實(shí)相反的情況（條件）從句謂語動詞形式主句謂語動詞形式謂語動詞用一般過去式（be用were） should/would/could/might+動詞原形（過去將來時）eg.if i were you, i would take an umbrella.如果我是你，我會帶把傘。（事實(shí)：我不可能是你）if i knew his telephone number, i would tell you. 如果我知道他的電話號碼，我就會告訴你。（事實(shí)：不知道）if there were no air or water, there would be no living things on the earth. 如果沒有水和空氣，地球上就不會有生物。(事實(shí)：地球上既有空氣也有水)if i had any money with me, i could lend you some. 如果我?guī)уX了，我就會借給你些。（事實(shí)：沒帶錢）if he studied harder, he might pass the exam.如果他再努力些，就能通過考試了。（事實(shí)：學(xué)習(xí)不用功）②表示與過去事實(shí)相反的情況從句謂語動詞形式主句謂語動詞形式 had+過去分詞（過去完成時） should/would/could/might+have+過去分詞（現(xiàn)在完成將來時）（過去將來完成時）eg. if i had got there earlier, i should/could have met her. 如果我早到那兒，我就會見到她。（事實(shí)：去晚了）if he had taken my advice, he would not have made such a mistake. 如果他聽我的勸告的話，就不會犯這樣的錯誤了。（事實(shí)：沒有聽我的話）③表示對將來情況的主觀推測（可能相反或可能性很小）從句謂語動詞形式主句謂語動詞形式 if+主語+ ① should+動詞② did③were to do(①通常與一個表示時間狀語連用)其中were to do可能性最小，should/would/could/might+動詞原形eg.if he would come here tomorrow, i should/would talk to him. 如果他哪天來這兒的話，我就跟他談?wù)?。（事實(shí)：來的可能性很小）if there were a heavy snow next sunday, we would not go skating. 如果下周日下大雪，我們就不能去滑冰了。（事實(shí)：不知能否下雪）if she were to be there next monday, i would tell her about the matter. 如果她下周一來這兒的話，我就會告訴她這件事得始末。在表示建議、命令、要求等含義的賓語從句，謂語動詞常用虛擬語氣，"should＋動詞原形"構(gòu)成，should 可省略。5，虛擬語氣的用法Source: http://baike.baidu.com/view/26751.htm?fr=ala01）虛擬語氣概念虛擬語氣用來表示說話人的主觀愿望或假想，而不表示客觀存在的事實(shí)，所說的是一個條件，不一定是事實(shí)，或與事實(shí)相反。虛擬語氣通過謂語動詞的特殊形式來表示。虛擬語氣常在表示條件和結(jié)果的狀語從句中。在表示與事實(shí)相反的虛擬語氣時動詞有三種時態(tài)：現(xiàn)在時，過去時，將來時。2）在條件句中的應(yīng)用條件句可分為兩類，一類為真實(shí)條件句，一類為非真實(shí)條件句。非真實(shí)條件句表示的是假設(shè)的或?qū)嶋H可能性不大的情況，故采用虛擬語氣。常見虛擬語氣用法1、真實(shí)條件狀語從句與非真實(shí)條件狀語從句eg .If he doesnt hurry up, he will miss the bus. ( 真實(shí)條件狀語)（不是虛擬語氣）If he was free, he would ask me to tell stories. （真實(shí)條件狀語）（不是虛擬語氣）If I were you, I would go at once. （非真實(shí)條件狀語從句）If there were no air, people would die. （非真實(shí)條件狀語從句）總結(jié)就是四個字：主將從現(xiàn)，主句用將來時，從句用一般現(xiàn)在時。2、虛擬語氣在非真實(shí)條件狀語從句中的用法及動詞形式① 表示與現(xiàn)在事實(shí)相反的情況（條件）從句謂語動詞形式主句謂語動詞形式謂語動詞用一般過去式（be用were） should/would/could/might+動詞原形（過去將來時）eg.If I were you, I would take an umbrella.如果我是你，我會帶把傘。（事實(shí)：我不可能是你）If I knew his telephone number, I would tell you. 如果我知道他的電話號碼，我就會告訴你。（事實(shí)：不知道）If there were no air or water, there would be no living things on the earth. 如果沒有水和空氣，地球上就不會有生物。(事實(shí)：地球上既有空氣也有水)If I had any money with me, I could lend you some. 如果我?guī)уX了，我就會借給你些。（事實(shí)：沒帶錢）If he studied harder, he might pass the exam.如果他再努力些，就能通過考試了。（事實(shí)：學(xué)習(xí)不用功）②表示與過去事實(shí)相反的情況從句謂語動詞形式主句謂語動詞形式 had+過去分詞（過去完成時） should/would/could/might+have+過去分詞（現(xiàn)在完成將來時）（過去將來完成時）eg. If I had got there earlier, I should/could have met her. 如果我早到那兒，我就會見到她。（事實(shí)：去晚了）If he had taken my advice, he would not have made such a mistake. 如果他聽我的勸告的話，就不會犯這樣的錯誤了。（事實(shí)：沒有聽我的話）③表示對將來情況的主觀推測（可能相反或可能性很小）從句謂語動詞形式主句謂語動詞形式 If+主語+ ① should+動詞② did③were to do(①通常與一個表示時間狀語連用)其中were to do可能性最小，should/would/could/might+動詞原形eg.If he would come here tomorrow, I should/would talk to him. 如果他哪天來這兒的話，我就跟他談?wù)?。（事實(shí)：來的可能性很小）If there were a heavy snow next Sunday, we would not go skating. 如果下周日下大雪，我們就不能去滑冰了。（事實(shí)：不知能否下雪）If she were to be there next Monday, I would tell her about the matter. 如果她下周一來這兒的話，我就會告訴她這件事得始末。在表示建議、命令、要求等含義的賓語從句，謂語動詞常用虛擬語氣，"should＋動詞原形"構(gòu)成，should 可省略。虛擬語氣有些條件句是可能實(shí)現(xiàn)的,稱為真實(shí)條件句. 虛擬語氣是動詞的一種特殊形式,用來表達(dá)說話人的意愿.請求,設(shè)想,等未能或不可能實(shí)現(xiàn)的事實(shí),或說話人看來實(shí)現(xiàn)可能性很小的情況.做這類題時首先要弄清楚虛擬語氣的各種句型,即由if引導(dǎo)的虛擬條件句,省略if的倒裝形式,可跟虛擬語氣的賓語從句,同位語從句,表語從句的句型,以及表示祝愿或感嘆的句子和由without, but for等介詞引導(dǎo)的短語或句子.四級對虛擬語氣的測試主要涉及以下方面:1). 主語從句,同位語從句中虛擬語氣的用法.2). 賓語從句中虛擬語氣的用法,尤其是wish 虛擬語氣結(jié)構(gòu)的用法.3). If條件句中虛擬語氣的用法,應(yīng)特別注意省略if的倒裝結(jié)構(gòu)是考試的重點(diǎn).4). would rather 等結(jié)構(gòu)中虛擬語氣的用法.5). if only結(jié)構(gòu)中虛擬語氣的用法.6). But, or, otherwise 等含蓄條件句的用法.7). Its time (that) 等結(jié)構(gòu)中虛擬語氣的用法.1. 虛擬語氣在虛擬條件句中的運(yùn)用(1)虛擬語氣現(xiàn)在時.用以表示與現(xiàn)在事實(shí)相反的假設(shè)或現(xiàn)在實(shí)現(xiàn)可能性不大的情況.條件從句主句動詞過去式(be多用were)Would/should/could/might + 動詞原形Eg. If I were a bird, I would fly to you.If it were not for their help, we should be in a very difficult position.(2) 虛擬語氣過去式.表示與過去事實(shí)完全相反的假設(shè).條件從句主句had + 過去分詞would/should/could/might + have +過去分詞Eg. If we had started earlier, we should not have missed the train.If she hadnt been ill, she might have come.(3)虛擬語氣將來式.表與將來情形相反的假設(shè)或極少有可能實(shí)現(xiàn)的情況.條件從句主句動詞過去式或should +動詞原形或were to +動詞原形would/should/could/might +動詞原形Eg. If Professor Li should have time tomorrow, we could ask him some questions.If there should be no air, there would be no living things.◆ 書面語中,上述(1),(2),(3)三種時態(tài)的虛擬句中,如果從句里含有should, had, were或其他助動詞,則可將從屬連詞if省去,將助動詞.情態(tài)動詞.be或have放在句首形成部分倒裝.Eg. Were he in your position, hed have done the same.Had I had time, I would have done that yesterday.Should he come tomorrow, I should give him the dictionary.(1)錯綜時間虛擬句通常情況下,在非真實(shí)條件句中主句和從句的謂語動詞所指時間是一致的, 但有時也可能指不同的時間,這時要根據(jù)上下文的意思采用不同的謂語動詞形式.P 116, 2Eg. If I were you, I would have taken his advice. (從句指現(xiàn)在, 主句指過去)If I had taken my raincoat with me this morning, I would not be wet now. (從句指過去,主句指現(xiàn)在).(2)含蓄條件句有時假設(shè)的情況并不以條件從句表示出來,二是暗含在上下文中,比如通過介詞短語來表示.Eg. But for your advice, I could not have done it so successfully.The change could not have taken place without the open-door policy.I was so busy then, Otherwise, I would have told him the answer.(3)虛擬語氣在某些從句中的應(yīng)用.A)在wish, suggest, order, demand, propose, command, request, recommend, require, decide, insist, desire, urge等動詞的賓語從句以及would rather /sooner 后要用 “ (should) +動詞原形” 來表示愿望,建議, 命令,要求等; 由上述動詞派生或轉(zhuǎn)化的名詞suggestion, proposal, plan, motion, recommendation, demand, order, desire, request, requirement, insistence, advice, decision , obligatory義不容辭的, 必須的等的同位語從句或表語從句中也要用相應(yīng)的虛擬形式.Eg. B)在It is/was + 某些形容詞 + that 從句的句型中,that從句中的謂語動詞常用虛擬語氣,即 “should + 動詞原形” 這些形容詞有:important, necessary, essential, imperative, natural, strange, advisable, desirable, possible, probable, astonishing, surprising, desired, suggested, requested, recommended, ordered, proposed, decided, moved等.“ should + 動詞原形(或完成形式)” 可表示驚奇,遺憾,懷疑,不滿等.ⅰ. 用于expect, believe, think, suspect 等動詞的否定或疑問形式后的賓語從句中.Eg. I never expected that the new apartment should be so small.ⅱ. 用于 “It is a pity, it is a shame, it is no wonder 等 + that” 等結(jié)構(gòu)后的主語從句中.Eg. It is a pity that he should be so careless.C)在由for fear that, in case, lest 等引導(dǎo)的狀語從句中,用 “ should + 動詞原形” 表示 “惟恐”的意思.Eg. He handled the instrument with care for fear that it should be damaged.D)在 “ It is (about/ high ) time + that (從句)” 中,謂語動詞常用過去式表表示虛擬語氣.Eg. It is high time that people learnt English.E)在 “as if/ as though” 引導(dǎo)的狀語從句中,謂語動詞與wish的賓語從句的虛擬形式相同.Eg. He works with such enthusiasm as if he never knew fatigue.He speaks English as though he were an American.F)在 look, seem等動詞后的 “as if / as though”從句中,當(dāng)表示真實(shí)情況時,用陳述語氣; 否則,用虛擬語氣.Eg. It seems as if they know each other. (真實(shí)情況)It seems as though it were already spring. (虛擬語氣)G)用在if only 引起的感嘆句中.Eg. If only the driver didnt drive so fast!虛擬就是if ....., sb would....if 后面不能用3W ：was would will例子if i were you, i would find a girlfriend.不能用wasif 從句永遠(yuǎn)不可能是事實(shí) 。