虛擬語(yǔ)氣的用法及專(zhuān)項(xiàng)練習(xí)題(已修改)
2025-08-05 18:55 本頁(yè)面
【正文】 虛擬語(yǔ)氣的用法及專(zhuān)項(xiàng)練習(xí)題虛擬語(yǔ)氣表示一種假設(shè)的情況，或一種主觀(guān)的愿望，即動(dòng)詞所表示的動(dòng)作或狀態(tài)并非事實(shí)，或不可能實(shí)現(xiàn)。英語(yǔ)虛擬語(yǔ)氣的形式有下列幾種：一 .虛擬語(yǔ)氣用于條件狀語(yǔ)從句注意:主句中的should通常用于第一人稱(chēng),would可用于任何人稱(chēng),同時(shí)也可根據(jù)意思用情態(tài)動(dòng)詞could,might等代替should,would。 連接詞條件從句If1).動(dòng)詞過(guò)去式(或were)2).助動(dòng)詞（過(guò)去式）+動(dòng)詞原形ShouldWould +動(dòng)詞原形couldmight(1) If had the time, John would make a trip to China to see the Great Wall.(2) If I were you, I would give up drinking immediately.連接詞條件從句Ifhad+過(guò)去分詞ShouldWould + have+過(guò)去分詞couldmightIf I’d known that it was going to rain, I would never have gone for a walk in the country.連接詞條件從句If1.should+動(dòng)詞原形2.動(dòng)詞過(guò)去式were to+動(dòng)詞原形ShouldWould +動(dòng)詞原形couldmightIf it were to/should rain tomorrow,the meeting would be putoff. If you went there next time, you would see what I mean.當(dāng)條件狀語(yǔ)從句表示的行為和主句表示的行為所發(fā)生的時(shí)間不一致時(shí),動(dòng)詞的形式要根據(jù)它所表示的時(shí)間來(lái)調(diào)整。例如: If I were you, I would have gone home.If you had followed the doctor39。s advice, you would be quite all right now.(從句說(shuō)的是過(guò)去,主句指的是現(xiàn)在。)If the weather had been more favorable ,the crops would be growing still better.狀語(yǔ)從句1. 方式狀語(yǔ)as if(as though)如果從句表示與現(xiàn)在事實(shí)相反,謂語(yǔ)動(dòng)詞用一般過(guò)去時(shí)。表示與過(guò)去事實(shí)相反,謂語(yǔ)動(dòng)詞用had+過(guò)去分詞。表示與將來(lái)事實(shí)相反,謂語(yǔ)動(dòng)詞用would(might,could)+動(dòng)詞原形。例如: (1) He looks at me as if I were mad. (2) He spoke English so fluently as if he had studied English in if(as though)后的從句也常用陳述語(yǔ)氣,這是因?yàn)閺木渲械那闆r往往是可能發(fā)生的或可能被設(shè)想為真實(shí)的。例如:It looks as if our side is going to win.2. 目的狀語(yǔ)in order that,so that , lest ,for fear that等從句謂語(yǔ)動(dòng)詞用 may/might,can/could)+動(dòng)詞原形。例如: (1) She listened carefully in order that she might discover exactly what he wanted. (2) We hid behind some bushes for fear that passerby should see us.3. 連詞引導(dǎo)的條件狀語(yǔ)從句:in case , unless ,supposing ,providing, on condition that從句謂語(yǔ)動(dòng)詞用(should)或 might, could)+動(dòng)詞原形。, advise 等動(dòng)詞之后賓語(yǔ)從句須用虛擬語(yǔ)氣，其句子結(jié)構(gòu)如下：要求：ask demand require request beg plead insist pray maintain urge 建議：suggest advise propose remend move 命令、決定：order mand decide determine resolve其它：consent deserve desire intend prefer等后面的賓語(yǔ)從句中 +that…(should )+動(dòng)詞原形注意：在此結(jié)構(gòu)中that不可省略；should省不省均可。He suggested that they (should ) stop smoking.They demanded that the black people should be treated as well as white people.如果that 引導(dǎo)的從句所表達(dá)的內(nèi)容是事實(shí)，也可用陳述語(yǔ)氣。He insists that he
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