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1、簡(jiǎn)單句中的虛擬語(yǔ)氣一、情態(tài)動(dòng)詞的過(guò)去式用于現(xiàn)在時(shí)態(tài)時(shí)二、表祝愿1、常用“ may動(dòng)詞原形”表示祝愿,但愿,此時(shí) may須置于句首2、用動(dòng)詞原形。例如:(1).L o ng live the people!人民萬(wàn)歲!Have a good jour ney! 祝愿你旅途愉快!三、表示強(qiáng)烈愿望。(該類型虛擬語(yǔ)氣謂語(yǔ)僅用動(dòng)詞原形,第三人稱單數(shù)也不加“s) (1).God save me .四、表命令1. 命令虛擬語(yǔ)氣只能用在第二人稱(you),而且通常省略主語(yǔ)(也就是you)。2. 句子尾通常加上感嘆號(hào):!3. 虛擬語(yǔ)氣動(dòng)詞用一般現(xiàn)在時(shí)態(tài) (Simple Present),如:work, be ,
2、go4. 否定形式的命令語(yǔ)氣,可用助動(dòng)詞do,加上not。五、在一些習(xí)慣表達(dá)中。如:(1).You d better set off now.你最好現(xiàn)在就出發(fā)。名詞性從句中的虛擬語(yǔ)氣第一節(jié):賓語(yǔ)從句(Subordinate Clasue)中的虛擬語(yǔ)氣一、在動(dòng)詞wish后的賓語(yǔ)從句中的虛擬語(yǔ)氣在動(dòng)詞wish后的賓語(yǔ)從句中的虛擬語(yǔ)氣,常省去賓語(yǔ)從句的引導(dǎo)詞that o一)、對(duì)現(xiàn)在情況的虛擬(與現(xiàn)在的事實(shí)相反):從句用過(guò)去式或過(guò)去進(jìn)行式(時(shí)間上是同時(shí)的)。其句子結(jié)構(gòu)為:賓語(yǔ)從句的謂語(yǔ)be和were(was),實(shí)義動(dòng)詞用過(guò)去式。例:1.1 wish (that 可省略,下同)1 knew the an
3、swer to the question.(wish,動(dòng)詞過(guò)去式knew)我希望知道這個(gè)答案。(事實(shí)上是不知道)2.1 wish it were spring in my hometown all the year around.(wish, were)但愿我的家鄉(xiāng)四季如春。(事實(shí)上不可能)二)、對(duì)過(guò)去情況的虛擬(和過(guò)去的事實(shí)相反):用wish表示對(duì)過(guò)去事情的遺憾。其句子結(jié)構(gòu)為:賓語(yǔ)從句的謂語(yǔ)用過(guò)去完成時(shí),或would, could, might+ 現(xiàn)在完成時(shí)。例:1.1 wish (that 可省略,下同)1 had nt wasted so much time.我后悔不該浪費(fèi)這么多時(shí)間。(
4、事實(shí)上已浪費(fèi)了)三)、對(duì)將來(lái)情況的虛擬(表示將來(lái)的主觀愿望):從句動(dòng)詞would/should/could/might +動(dòng)詞原形(時(shí)間上較后)(請(qǐng)注意:主句和從句的主語(yǔ)不相同)。用wish表示對(duì)將來(lái)事情的愿望。例:1.1 wish it would stop raining.(虛擬動(dòng)詞 would+ 動(dòng)詞原形 stop)我希望雨能停止。(事實(shí)上雨還在下著呢)四)、注意:1. 如果將wish改為過(guò)去式wished,其后that從句中的動(dòng)詞形式不變。例如:I wished I had nt spe nt so much mon ey.我要是那時(shí)沒(méi)有花掉那么多錢(qián)就好了。2. 如果that從句中用w
5、ould , 一般表示對(duì)現(xiàn)狀不滿或希望未來(lái)有所改變或請(qǐng)求I wish he would an swer my letter.二、在表示建議、命令、要求、忠告等動(dòng)詞的后面的賓語(yǔ)從句中的虛擬語(yǔ)氣由于這些動(dòng)詞本身隱含說(shuō)話者的主觀意見(jiàn),認(rèn)為某事應(yīng)該或不應(yīng)該怎樣,這些詞語(yǔ)后面的“that從句應(yīng)用虛擬語(yǔ)氣,且均以“should+動(dòng)詞原形表示這種語(yǔ)氣,但事實(shí)上“should常被省略,故此從句中謂語(yǔ)動(dòng)詞用原形,常用的此類動(dòng)詞有:表示 要求的:ask, desire, request, demand, require, beg表示 提議、勸告、建議 的: move, prpose, suggest, recom
6、mend, advise, vote表示決定、命令的:decide, order表示 主張的: maintain, urge表示 同意、堅(jiān)持的:consent, insist在表示命令、建議、要求等一類動(dòng)詞后面的從句中虛擬語(yǔ)氣很普遍,其結(jié)構(gòu)如:order, suggest, propose, require, dema nd, request, i nsist, comma nd, in sist +. (should) do在insist后的從句中,如果是堅(jiān)持自己,用陳述語(yǔ)氣,堅(jiān)持別人做什么事情,用虛擬語(yǔ)氣.suggest, insist不表示建議或堅(jiān)持要某人做某事時(shí),即它們用于其本意暗示、
7、表明、堅(jiān)持認(rèn)為時(shí),賓語(yǔ)從句用陳述語(yǔ)氣。三、 在expect, believe, think, suspect等動(dòng)詞的否定或疑問(wèn)形式后的賓語(yǔ)從句中的虛擬語(yǔ)氣在expect, believe, think, suspect等動(dòng)詞的否定或疑問(wèn)形式后的賓語(yǔ)從句中,我們經(jīng)常用“should動(dòng)詞原形(或完成形式)”表示驚奇,懷疑,不滿等。四、would rather , would sooner , had rather, would (just) as soon ,would prefer 之后的賓語(yǔ)從句中的虛擬語(yǔ)氣would rather , would sooner , had rather, wo
8、uld (just) as soon ,would prefer (希望)也用來(lái)表達(dá)主觀愿望,它們之后的賓語(yǔ)從句中需用虛擬語(yǔ)氣。謂語(yǔ)動(dòng)詞用過(guò)去式表示現(xiàn)在或?qū)?lái),用過(guò)去完成式表示與過(guò)去事實(shí)相反。表示”寧愿做什么”或?qū)^(guò)去做的事的懊悔”。注:若某人愿自己做某事,would rather后用動(dòng)詞原形I would rather stay at home today .would rather . than .中用動(dòng)詞原形I would rather stay at home tha n go out today .五、“had hoped后的賓語(yǔ)從句中的虛擬語(yǔ)氣用“had hoped表示原來(lái)希望做到
9、而實(shí)際上未能實(shí)現(xiàn)的事情,其賓語(yǔ)從句的謂語(yǔ)用“would+動(dòng)詞原形”第二節(jié):主語(yǔ)從句中的虛擬語(yǔ)氣一、“It is (was)+形容詞(或過(guò)去分詞)+that結(jié)構(gòu)中的虛擬語(yǔ)氣在形如“It is (was)+形容詞(或過(guò)去分詞)+t hat結(jié)構(gòu)中,使用某些表示愿望、建議、請(qǐng)求、命令、可能、適當(dāng)、較好、迫切、緊近、重要等形容詞后的主語(yǔ)從句的謂語(yǔ)也用虛擬語(yǔ)氣。其表達(dá)形式為 should +動(dòng)詞原形或省略should直接用動(dòng)詞原形常用的形容詞:* natural (自然的),appropriate (適當(dāng)?shù)模?advisable (合適的),preferable (更可取的),better (更好的)*
10、necessary (必須的), importa nt (重要的),imperative (急需的),urge nt (急迫的),esse ntial (本質(zhì)的),vital (必不可少的)* probable (很可能的),possible (可能的)* desirable (極好的)advisable (合理的),compulsory (必須的),crucial (緊急的),desirable (理想的),essential (必要的),imperative (迫 切的),in credible (驚人的),necessary (必要的),possible (可能的),stra nge (
11、奇怪的),urge nt (緊迫的)。常用的過(guò)去分詞(Past Participle):* required (需要的),demanded (要求),requested (被請(qǐng)求的),desired (要求)* suggested (建議), recommended (推薦)* orderd (命令)necessary, should + have)( 表示有需要去散步)necessary, should + make)( 表示有必要事先做好準(zhǔn)備required, should + smoke)(表示要求不要在此抽煙)importa nt, should + be)(表示重要的是學(xué)生都能了解校
12、規(guī)importa nt, should + take)(表示重要的是照顧好病人 )形容詞natural, should+ 動(dòng)詞原形do在It is +名詞+ that的主語(yǔ)從句中的虛擬語(yǔ)氣在It is +名詞+ that的主語(yǔ)從句中,常用虛擬語(yǔ)氣,表示建議、命令、請(qǐng)求、道歉、懷疑、驚奇等。這類名詞有: advice , decisi on , desire , dema nd , idea,moti on , order, pity , prefere nee , proposal,recomme ndati on , requirement , resolution , shame, sug
13、gestion , surprise, wish,wonder 等。第三節(jié):虛擬語(yǔ)氣用在表語(yǔ)從句或同位語(yǔ)從句中當(dāng)某些表示建議、請(qǐng)求、命令等主觀意向的名詞作主語(yǔ)時(shí),其后的表語(yǔ)從句或同位語(yǔ)從句需用虛擬語(yǔ)氣,其表達(dá)形式為should +動(dòng)詞原形或直接用動(dòng)詞原形。這類名詞常見(jiàn)的有:dema nd (要求),desire (請(qǐng)求),requirme nt ( 要求)advice (勸告),recommendation ( 建議),suggestion ( 建議)order (命令)necessity (必要地),preferenee ( 優(yōu)先)proposal (計(jì)戈J), plan (計(jì)戈J), id
14、ea (辦法),recommendation 以及 plan, idea, resolution 等。(名詞 advice, should + leave)idea, should + get)( 表示做出主意) proposal, should + hold)( 表示做出計(jì)戈U )第四部分:條件句中的虛擬語(yǔ)氣第一節(jié):if引導(dǎo)的條件句中的虛擬語(yǔ)氣虛擬語(yǔ)氣表示一種不能實(shí)現(xiàn)的假設(shè)。該語(yǔ)法主要用于if條件狀語(yǔ)從句。一、if引導(dǎo)的條件狀語(yǔ)從句的分類及虛擬條件句的判斷1、可以把條件句分為兩類:1).真實(shí)條件句(Sentences of Real Condition ):凡是假設(shè)的情況發(fā)生性可能很大,就是
15、真實(shí)條件句2、.if條件狀語(yǔ)從句中虛擬語(yǔ)氣的判斷判斷是真實(shí)條件句還是非真實(shí)條件句。只有在非真實(shí)條件句中才使用虛擬語(yǔ)氣。通過(guò)句子意思,看假設(shè)的條件是否能夠?qū)崿F(xiàn),能夠?qū)崿F(xiàn)是真 實(shí)條件句,不能使用虛擬語(yǔ)氣;假設(shè)的條件不能實(shí)現(xiàn)則是非真實(shí)條件句,要用虛擬語(yǔ)氣。判斷這個(gè)假設(shè)是與哪個(gè)事實(shí)相反。通常有三種情況:與過(guò)去事實(shí)相反。與現(xiàn)在事實(shí)相反。與將來(lái)事實(shí)可能相反。3、后退一步法”后退一步法是指在準(zhǔn)確地判斷了該句與哪一事實(shí)相反后,按虛擬語(yǔ)氣的后退一步法處理從句謂語(yǔ)動(dòng)詞的時(shí)態(tài)。即:在非真實(shí)條件狀語(yǔ)從句中,謂語(yǔ)動(dòng)詞按正常情況后退一步”。也就是: 與過(guò)去事實(shí)相反,在從句中用過(guò)去完成時(shí)形式表示。 與現(xiàn)在事實(shí)相反,在從句中
16、用過(guò)去一般時(shí)形式表示。 與將來(lái)事實(shí)可能相反,在從句中用過(guò)去將來(lái)時(shí)形式表示。主句中則用情態(tài)動(dòng)詞 would, should, could等加一個(gè)與從句一致的動(dòng)詞形式。4、注意事項(xiàng) if條件句中如有were, should, had,可以省去if,并使用倒裝語(yǔ)序。 在現(xiàn)代英語(yǔ)中if條件狀與從句中的謂語(yǔ)動(dòng)詞如果是be其過(guò)去形式一般用were二、虛擬語(yǔ)氣在if引導(dǎo)的條件句中的用法:(一)、表示與現(xiàn)在事實(shí)相反的情況。其句子結(jié)構(gòu)為:從句:if + 主語(yǔ)+動(dòng)詞的過(guò)去式(be用were) + 主句:主語(yǔ) + would (should, could , might) + 動(dòng)詞原形 + 注意:如果動(dòng)作在進(jìn)行中,
17、主句要用:主語(yǔ)+ would be +進(jìn)行式動(dòng)詞+ 14. If they were here, he would be speak ing to them now.(從句用過(guò)去式動(dòng)詞 were,主句用 would be speaking)(二)、表示與過(guò)去事實(shí)相反的虛擬條件句。其句子結(jié)構(gòu)為:從句:If + 主語(yǔ)+ had +過(guò)去完成式動(dòng)詞+ 主句:主語(yǔ) + would (should, could, might) + have +過(guò)去完成式動(dòng)詞 +If it had snowed, I would have skied in the park.( 從句動(dòng)詞用 had snowed, 主句動(dòng)詞
18、用have skied)如果下雪的話,我就可在公園里滑雪了。 注意:如果動(dòng)作在進(jìn)行中,主句要用:主語(yǔ)+ would + have +完成進(jìn)行式動(dòng)詞 +(三)、表示與將來(lái)事實(shí)相反的虛擬條件句(對(duì)將來(lái)的事實(shí)實(shí)現(xiàn)的可能性不大)。其句子結(jié)構(gòu)為:從句:If + 主語(yǔ)+ should (或were) + 動(dòng)詞原形+主句:主語(yǔ) + would (could, should, might) +動(dòng)詞原形 +注意:如果動(dòng)作在進(jìn)行中,從句(不是主句喔)要用:If +主語(yǔ)+過(guò)去進(jìn)行式動(dòng)詞 +、If she were staying here now, I would let her ride my horse.(從句
19、動(dòng)詞用 were staying, 主句動(dòng)詞用let)如果她現(xiàn)在留在這兒,我可能會(huì)讓她騎我的馬。三、混合條件句-主從句時(shí)間不一致情況下的虛擬語(yǔ)氣有時(shí)條件從句中的動(dòng)作和結(jié)果與主句中的動(dòng)作,發(fā)生的時(shí)間不一致,這時(shí)動(dòng)作的形式應(yīng)根據(jù)它所表示的時(shí)間加以調(diào)整。如:1. 從句表示過(guò)去,主句表示將來(lái):、If they had started the early morning yesterday, they would be here now.2. 從句表示將來(lái),主句表示過(guò)去:、If I were not to make a preparatio n for my experime nt this after
20、 noon, Iwould have gone to see the film with you last n ight.3. 從句表示過(guò)去,主句表示將來(lái):)、If we had nt made adequate preparati ons, we should nt dare to do theexperime nt n ext week.4. 從句表示將來(lái),主句表示現(xiàn)在:)、If we should nt have an exam this after noon, I would go shopp ing now.5. 從句表示過(guò)去,主句表示現(xiàn)在。、If they had stared t
21、he early morning yesterday, they would be here now.、If you had followed my advice, you would be able to finish the work now.如果你當(dāng)時(shí)聽(tīng)了我的話,現(xiàn)在就能完成這份工作了。(從句說(shuō)明過(guò)去,主句說(shuō)明現(xiàn)在。)6. 從句表示現(xiàn)在,主句表示過(guò)去、If I were you, I would have gone to her birthday party.如果我是你,我就去參加她的生日晚會(huì)了。(從句說(shuō)明現(xiàn)在,主句說(shuō)明過(guò)去。)7. 從句表示過(guò)去,主句表示過(guò)去和現(xiàn)在(1) 、 If yo
22、u hadn tlent me some money, I couldn thave bought the new house and most likely I would be still living in the dange rous house now.假若你不借錢(qián)給我,我不可能買下這幢新房,很可能現(xiàn)在還住在危房里。(從句說(shuō)明過(guò)去,主句說(shuō)明過(guò)去和現(xiàn)在。)四、含蓄條件句非真實(shí)條件句中的條件從句有時(shí)不表岀來(lái),只暗含在上下文中,這種句子叫做含蓄條件句。含蓄條件句大體有三種情況;1. 條件暗含在短語(yǔ)中。如:(I) 、What would I have done without you?如沒(méi)有
23、你,我會(huì)怎么辦呢?(條件暗含在分詞短語(yǔ) without you中)、It would be easier to do it this way.這樣做會(huì)比較容易。(條件暗含在不定式短語(yǔ) to do it this way中)(3) 、 This same thing, happening in wartime, would lead to a disaster.同樣的事,如發(fā)生在戰(zhàn)時(shí),就會(huì)釀成大禍。(條件暗含在分詞短語(yǔ) happening in wartime 中)、 But for your help we couldn have succeeded in the experiment.如果沒(méi)
24、有你的幫助,我們的實(shí)驗(yàn)是不會(huì)成功。(暗含條件是butfor your help)(5) 、 He must have the strength of a hippopotamus, or he never could have vanquished that great beast.他一定是力大如河馬,否則他絕不會(huì)擊敗那只龐大的野獸。(暗含條件是連詞or)(6) 、 Alone, he would have been terrified. 如是單獨(dú)一人,他是會(huì)感到害怕的。(暗含條件是 alone)2. 條件暗含在上下文中。如:、 You might stay her forever .你可以永
25、遠(yuǎn)待在這兒。(可能暗含if you wanted to)(8) 、We would have succeeded.我們本來(lái)是會(huì)成功的。(可能暗含 if we had kept trying)(9) 、Your reputation would be ruined.你的名譽(yù)會(huì)敗壞的。(可能暗含 if you should accept it)(10) 、I would appreciate a little of your time.謝謝你給我一點(diǎn)時(shí)間吧。 (可能暗含 if you were so kind as to give me a little of your time)3. 在不少情況
26、下,虛擬式已變成習(xí)慣說(shuō)法,很難找岀其暗含的條件。如:(II) 、You wouldn kt now.你不會(huì)知道。(12) 、I would like to come.我愿意來(lái)。(13) 、I wouldn htave dreamed of it.這是我做夢(mèng)也不會(huì)想到的。(14) 、He told the story in such minute detail that he might himself have been an eye-witness. 他將那事講的非常仔細(xì),簡(jiǎn)直就象他親眼看見(jiàn)一樣。五、條件從句中省略if采用倒裝語(yǔ)序的情況1、在if引導(dǎo)的表示虛擬的條件狀語(yǔ)從句中,有時(shí)可以把含有
27、助動(dòng)詞、情態(tài)動(dòng)詞、be或have的虛擬條件句中的連詞if省去,而將had , should, were等詞提到主語(yǔ)之前,即用倒裝結(jié)構(gòu)。例如:1) .原句:If she were younger, she would do it.去 If: Were she younger, she would do it.(把動(dòng)詞 were 移到主語(yǔ) she 的前面)2) .原句:If he had tried it, he could have done it.去 If: Had he tried it, he could have done it.(把 had 移到主語(yǔ) he 的前面)3) .Had he
28、 worked harder, he would have got through the exams.4) .Were he to leave today, he would get there by Friday.5) .Were I in your place, I wouldn do that.6) .Had I seen the film, I would have discussed it with them last night.假如我看了那部電影,昨晚我就可以和他們一起討論了。7) .Were I a bird, I could fly freely.假如我是一只小鳥(niǎo),我就能自
29、由翱翔。8) .Should it rain next week the farmers would have a good harvest.要是下周能下雨的話,農(nóng)民們就能有個(gè)好收成了。2、 如果虛擬條件句中有 were, had或should時(shí),把它們放在if的位置上;但是如果條件句中沒(méi)有were, had或should不能用倒裝。例如:、Should it rain tomorrow, what should we do? 要是明天下雨的話,我們?cè)趺崔k呢?、Were I you, I would have asked him for some advice.要是我是你的話,我就向他請(qǐng)教了。
30、、Were he to do this work by himself, he would get a lot of money.如果他自己能夠做此工作,他就會(huì)得到一些錢(qián)。3、 在 開(kāi)放式條件句”(openconditional clause)和讓步狀語(yǔ)從句中should是被省略了的。在這種情況下,如果if省略,動(dòng)詞be與主語(yǔ)的位 置要倒裝。如:、If any person be guilty of a crime, the court shall have the right to appeal.(任何人犯罪,法院有權(quán)起訴。)Be any person guilty of a crime,
31、the court shall have the right to appeal.、Whether she be right or wrong, she will have my unanswering support.(不管她是對(duì)還是錯(cuò),我都會(huì)支持她的。)Be she right or wrong, she will have my unanswering support.、 ,I will take her as my wife.A Were she rich or poor B Being rich or poor C Be she poor or rich D Whether is s
32、he poor or rich4、 注意:有時(shí)虛擬條件句并沒(méi)來(lái)if從句表示出來(lái),而是用介詞短語(yǔ)(otherwise, or, without, but for)、上下文或其它方式來(lái)表示。、We didnt know his telephone number; otherwise we would have telephoned him.、Without you help, I wouldn t have achieved so much.、But for your help, I would not have succeeded.六、有時(shí)虛擬條件句的從句或主句都可以省略其中一個(gè):1. I co
33、uld help you.(只有主句) 2. If I had time.(只有從句)3. She should have come to the meeting.(只有主句)4. If he had much more money.(只有從句)第二節(jié):其他形式的條件句中的虛擬語(yǔ)氣一、 用 “without/but for/in the absence of ”表示要不是”,如果沒(méi)有”(相當(dāng)于 if it were notfor 表示條件時(shí),句中一般用虛擬語(yǔ)氣。(也可用陳述語(yǔ)氣)Without your help, I couldn t finish my work on time.In th
34、e absence of water and air, nothing could live.二、由 “providing (that)/ provided (that)/on condition that/ in orderthat引導(dǎo)的條件從句或目的從句,根據(jù)情況,可用虛擬語(yǔ)氣。(有時(shí)也可用陳述語(yǔ)氣)They are willing surrender provided they are given free passage.三、 用without / but for / in the absence of表示“要不是、“如果沒(méi)有“,表示條件虛擬句:(1) . Without air, n
35、othing could live.要是沒(méi)有空氣,什么也不能生存。(2) . But for your assistance, we could not accomplish it.要不是你的幫忙,我們是難有成就的。(3) . In the absence of water and air, nothing could live.如果沒(méi)有水和空氣,什么也不能生存。第五部分:其他幾種情況下的虛擬語(yǔ)氣第一節(jié):虛擬語(yǔ)氣在 as if / as though引導(dǎo)的方式狀語(yǔ)從句中的應(yīng)用虛擬語(yǔ)氣在as if / as though引導(dǎo)的方式狀語(yǔ)從句中,謂語(yǔ)動(dòng)詞形式與wish后的賓語(yǔ)從句基本相同1.表示與現(xiàn)
36、在事實(shí)相反或?qū)ΜF(xiàn)在情況有懷疑,謂語(yǔ)動(dòng)詞用過(guò)去式。例如:(1) .He felt as if he alone were responsible for what had happened.他感到仿佛唯獨(dú)他要對(duì)發(fā)生的一切負(fù)責(zé)。(2) . He acts as if he were / was a TV expert.他做起事來(lái)好象是個(gè)電視專家。.Alan talked about Rome as if he were a Roman .艾倫談起羅馬來(lái)好像他是個(gè)羅馬人一樣。 John pretends as if he didn t know the thing at all, but in fa
37、ct he knows it very well.(用過(guò)去式表示與現(xiàn)在事實(shí)相反的假設(shè))(5). He pretends as if he didnt know the thing at all, but in fact he knows it very well.(用過(guò)去式表示與現(xiàn)在事實(shí)相反的假設(shè))他假裝好象完全不懂那事,其實(shí)他對(duì)那事非常了解。2. 表示過(guò)去想象中的動(dòng)作或情況,謂語(yǔ)動(dòng)詞用過(guò)去完成式。如:(1).The tree looked as if it for a long time.A. hasnt wateredB. didnt water C. hadnt bee watered
38、D. wasnt watered那棵樹(shù)看上去好象很久沒(méi)人給澆水了。(答案是c)(2).The old man looked at the picture, he felt as though he had gone back to time 20 years ago.(用過(guò)去完成式表示與過(guò)去相反的 事實(shí))(3). The old man looked at the picture, he felt as though he had gone back to time 20 years ago.(用過(guò)去完成式表示與過(guò)去相反的事實(shí))那老人看著照片,他覺(jué)得仿佛回到20年前的時(shí)光。3. 表示與將來(lái)事實(shí)
39、相反:(1).They talked and talked as if they would never meet again (would+ 動(dòng)詞原形,表示與將來(lái)事實(shí)相反 )(2). They talked and talked as if they would never meet again.(would + 原形動(dòng)詞 meet,表示與將來(lái)事實(shí)相反)他們談了又談,仿佛他 們不會(huì)再相見(jiàn)的樣子。注:在as if / as though句中,如果有可能成為事實(shí),用陳述語(yǔ)氣.He looks as if he is going to be ill.第二節(jié):虛擬語(yǔ)氣用在lest,for fear
40、that及in case引導(dǎo)的目的狀語(yǔ)從句中在由lest等引導(dǎo)的目的狀語(yǔ)從句中需用虛擬語(yǔ)氣,表示以防,以免”等意思,其謂語(yǔ)動(dòng)詞多由should +動(dòng)詞原形構(gòu)成,should也可省略。例如: 、He was punished lest he should make the same mistake again .他被處以懲罰以免他再犯。、The mad man was put in the soft-padded cell lest he himself.a. injure b. injured c. had injure d. would injure這個(gè)瘋子被關(guān)進(jìn)墻上裝有襯墊的病房,以免傷了他自己。(答案是a)第三節(jié):介詞短語(yǔ)表示虛擬有時(shí)假設(shè)的情況并不以條件從句表示出來(lái),而是通過(guò)一個(gè)介詞短語(yǔ)來(lái)表示,或通過(guò)上下文或其他方式表示出來(lái)。如but for, but that,in case of, otherwise, supposing, under more favourable conditi
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