虛擬語氣的用法及專項練習(xí)題-全文預(yù)覽
【正文】 ave grown ,這些樹本來可以生長得更好的。意為如果當(dāng)時沒有……,表示同過去事實相反的假設(shè)。例如:She came to town yesterday, otherwise/or I would not have met her.昨天她到城里來了,不然我就不會遇見她了。例如:You would be a fool to refuse his offer.(=If you should refuse his offer,you would be a fool.)要是你拒絕他的建議,就太傻了。例如:Would you like a cup of tea. You had better go now.3)用may+動詞原形,表示祝愿、但愿。如：It’s time (that) you had a hair cut.It’s high time (that) we took some action. only引導(dǎo)的感嘆句:If only I had taken his 。反之,如果不表示驚奇,that從句也可用陳述語氣。例如:It is necessary( appropriate crucial desirable dreadful essential important improper incredible indispensable insistent natural preferable possible probable proper right significant surprising strange tragic urgent vital wrong etc.)that we should clean the room every day. 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.在上述三種主語從句中,should意為應(yīng)該、竟然,可以省去,但不可換用would。試比較：We hope they will e,(We don’t know if they can e.We wish they could e,(We know they are not ing.would rather/would sooner/would just as soon后接從句:I39。表示將來不能實現(xiàn)的愿望,用would(could)+動詞原形。He insists that he is right.注意:insist作力言、強調(diào)解時,賓語從句不用虛擬語氣。例如:It looks as if our side is going to win.2. 目的狀語in order that,so that , lest ,for fear that等從句謂語動詞用 may/might,can/could)+動詞原形。)If the weather had been more favorable ,the crops would be growing still better.狀語從句1. 方式狀語as if(as though)如果從句表示與現(xiàn)在事實相反,謂語動詞用一般過去時。虛擬語氣的用法及專項練習(xí)題虛擬語氣表示一種假設(shè)的情況，或一種主觀的愿望，即動詞所表示的動作或狀態(tài)并非事實，或不可能實現(xiàn)。 連接詞條件從句If1).動詞過去式(或were)2).助動詞（過去式）+動詞原形ShouldWould +動詞原形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+過去分詞ShouldWould + have+過去分詞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.s advice, you would be quite all right now.(從句說的是過去,主句指的是現(xiàn)在。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氣,這是因為從句中的情況往往是可能發(fā)
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