情態(tài)動(dòng)詞與虛擬語(yǔ)氣-資料下載頁(yè)
2025-08-03 23:47本頁(yè)面
【正文】 s ill.（三）虛擬語(yǔ)氣用于表語(yǔ)從句、同位語(yǔ)從句作advise、idea、order、demand、plan、proposal、suggestion、request等名詞的表語(yǔ)從句和同位語(yǔ)從句，其謂語(yǔ)動(dòng)詞要用虛擬語(yǔ)氣的結(jié)構(gòu)“(should)+動(dòng)詞原形”。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)。例如：He speaks English so fluently as if he had studied English in England.Even if he were here, he could not solve the problem.（五）虛擬語(yǔ)氣用于主語(yǔ)從句在主語(yǔ)從句中，謂語(yǔ)動(dòng)詞的虛擬語(yǔ)氣結(jié)構(gòu)用“should+動(dòng)詞原形”的結(jié)構(gòu)，表示驚訝、不相信、惋惜、理應(yīng)如此等。例如：It is necessary (important、natural、essential、urgent、surprising，etc) that we should clean the room everyday.It was a pity (a shame、no wonder , etc) that you should be so careless.It will be desired (suggested、decided、ordered、requested、proposed，etc) that she should finish her homework this afternoon.在上述三種主語(yǔ)從句中，should意為“應(yīng)該”，“竟然”，可以省去，但不可換用would。主句所用動(dòng)詞的時(shí)態(tài)不限。這種表示的是事實(shí)。如果說(shuō)話人對(duì)這種事實(shí)表現(xiàn)出驚奇的情感，就可用虛擬語(yǔ)氣。反之，that從句也可用陳述語(yǔ)氣。例如：It is a strange that he did not e yesterday. (六) 虛擬語(yǔ)氣用于定語(yǔ)從句這種從句常在It is (high) time (that)…句型中，定語(yǔ)從句的謂語(yǔ)動(dòng)詞用過(guò)去式，意為“（現(xiàn)在）該……”。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）。如：Would that I were young again! 我要是能返老還童就好了！If only I knew the answer! 我要是知道答案就好了! Suppose/Supposing it were fine tomorrow, I would go swimming with you.
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