情態(tài)動(dòng)詞與虛擬語(yǔ)氣-wenkub.com
2025-07-31 23:47 本頁(yè)面
【正文】 例如：It is (high) time we left.（七）虛擬語(yǔ)氣用于If/If only/suppose/supposing/Oh, that/Would(that)/ Would to God(that)/Wish to Heaven(that)等+主語(yǔ)的句中，其后的賓語(yǔ)也分為現(xiàn)在時(shí)（be—were，do—did），過(guò)去時(shí)（had +.），將來(lái)時(shí)（would/ should/could+動(dòng)詞原形）。這種表示的是事實(shí)。例如：We all agreed to his suggestion that we (should) go to Beijing for sightseeing.My idea is that we (should) do exercises first.（四）虛擬語(yǔ)氣在as if (as though)、even if (even though)等引導(dǎo)的表語(yǔ)從句或狀語(yǔ)從句中的應(yīng)用如果從句表示的動(dòng)作發(fā)生在過(guò)去，用過(guò)去完成時(shí)，指現(xiàn)在狀況，則用過(guò)去時(shí)，指將來(lái)則用過(guò)去將來(lái)時(shí)。、mand、demand、desire、insist、order、propose、request、require、suggest（建議）、advise、prefer、agree、expect、intend、remend、ask、decide、object、persist、determine、urge等后面的賓語(yǔ)從句中用“(should)+動(dòng)詞原形”。例如：It would produce bad results to do that. =If you have done that, it would produce bad results. （二）虛擬語(yǔ)氣用于賓語(yǔ)從句1.“wish +賓語(yǔ)從句”表示不能實(shí)現(xiàn)的愿望。例如：If you had worked hard, you would be very tired now. (從句說(shuō)的是過(guò)去，主句指的是現(xiàn)在)。虛擬語(yǔ)氣通過(guò)謂語(yǔ)動(dòng)詞的特殊形式來(lái)表示。（否定式do/does/did not dare to do）例如：The litter girl dare not go out in the dark at night.I dare say.（我敢說(shuō)、可能、或許）（6）當(dāng)用于各種人稱(chēng)時(shí)，will和would不僅可以將來(lái)時(shí)，而且可以表示有做某事的意圖、意愿、決心、或打算。 （4）must表示偏要，硬要做某事。例如：4）Ask her to ring me up if you should see her. 你萬(wàn)一見(jiàn)到她，請(qǐng)讓她給我打個(gè)電話(huà)。3）This is something I should have liked to ask you. 這是我本來(lái)想問(wèn)你的。你要借給他錢(qián)，不如把錢(qián)扔了。may as well = had better 最好may as well+動(dòng)詞原形+as+動(dòng)詞原形，意為：與其……不如；最好……不要。would like/love to have done過(guò)去本愿意或本打算做某事，而實(shí)際未做成。should/ought to have done用于肯定句表示過(guò)去本應(yīng)該做某事，而實(shí)際上未做。may/might have done對(duì)過(guò)去已發(fā)生行為的沒(méi)有把握的推測(cè)，意為：也許已經(jīng)/沒(méi)有……，一般只用于肯定句或否定句，不用于疑問(wèn)句，might語(yǔ)氣更加不肯定。can’t have done對(duì)過(guò)去已發(fā)生行為的否
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