英語語法教學課件：虛擬語氣

1、1. 虛擬語氣的考點虛擬語氣的考點 1、條件句中的虛擬語氣的用法；、條件句中的虛擬語氣的用法；2、條件句中虛擬語氣的倒裝；、條件句中虛擬語氣的倒裝；3、名詞性從句中虛擬語氣的用法；、名詞性從句中虛擬語氣的用法；4、幾種特殊結(jié)構(gòu)中虛擬語氣的用法；、幾種特殊結(jié)構(gòu)中虛擬語氣的用法；5、虛擬語氣與陳述語氣的判定。、虛擬語氣與陳述語氣的判定。1、陳述語氣與虛擬語氣、陳述語氣與虛擬語氣典型例題典型例題1) The volleyball match will be put off if it _. A.will rain B. rains C. rained D. is rained2) - Would y

2、ou have called her up _ possible? - Yes, but I _ busy doing my homework. A. had it been wasB. if it was were C. if it had been had beenD. if it were would beB該句為陳述語氣，因為主句用的是 will be put off。真實條件句主句為將來時，從句用一般現(xiàn)在時代將來時。問句中用的是虛擬語氣，主句用 would have called, 從句中與過去相反的動詞形式為 had done；答句中表示的是真實的情況，所以該用陳述語氣。A2、條件

3、句中的虛擬語氣、條件句中的虛擬語氣時時 間間 If If 條件句條件句主主 句句過過 去去had donewould have done現(xiàn)現(xiàn) 在在did / werewould do將將 來來should dowere to dodid / werewould do高考題點擊高考題點擊1) You didnt let me drive. If we _ in turn, you _ so tired. （96 N） A. drovedidnt getB. had drivenwouldnt have got C. drovewouldnt get D. were drivingwouldnt

4、get 2) It is hard for me to imagine what I would be doing today if I _ in love, at the age of seven, with the Melinda Cox Library in my hometown.(02 上海) A. wouldnt have fallenB. had not fallen C. should fallD. were to fall前句用的是陳述語氣，表示過去發(fā)生的事；后句是虛擬語氣，表示與過去相反。BB該句主句中用的是與現(xiàn)在相反的虛擬語氣，而從句中使用的是與過去相反的虛擬語氣。全句意

5、思為“如果我不在七歲時迷上了我們家鄉(xiāng)的 Melinda Cox Library，我真不能想象我今天會做什么。” 3、條件句中虛擬語氣的特殊情況、條件句中虛擬語氣的特殊情況1)虛擬倒裝句虛擬倒裝句What would have happened, _ as far as the river bank? (01 上海)A.Bob had walked fartherB. if Bob should walk fartherC. had Bob walked fartherD. if Bob walked farther2) 錯綜條件句錯綜條件句If you _ him yesterday, you

6、 _ what to do now. A.asked would knowB. had asked would have knownC. asked him knowD. had asked would knowCD3) 介詞短語表條件介詞短語表條件 But for your help, we couldnt have succeeded. They wouldnt have reached the agreement so easily without that common ground.4) 情境中提供虛擬語氣情境中提供虛擬語氣 Suppose there were no gravita

7、tional force, objects would not fall to the ground when dropped. She wasnt feeling very well. Otherwise she wouldnt have left the meeting so early.高考題點擊：高考題點擊： Jack _ yet, otherwise he would have phoned me. (N 97) A. mustnt have arrivedB. shouldnt have arrived C. cant have arrivedD. neednt have arri

8、vedC5) 比較比較if only與與only if only if 表示“只有”；if only 則表示“如果就好了”。 If only 也可用于陳述語氣。I wake up only if the alarm clock rings. 只有鬧鐘響了，我才會醒。If only the alarm clock had rung. 當時鬧鐘響了，就好了。If only he comes early. 但愿他早點回來。 4. 名詞性從句中的虛擬語氣名詞性從句中的虛擬語氣 A、賓語從句中的虛擬語氣、賓語從句中的虛擬語氣在動詞 suggest, order, demand, request, des

9、ire, insist, require, decide, determine, advise, recommend, deserve (值得提及) 后需用 should 型的虛擬語氣。考題點擊：考題點擊：1. The teacher demanded that the work _ before 4 oclock. A. finished B. be finished C. should finish D. finish2. - What did the doctor say about your mothers illness? - He suggested that she _ an o

10、peration at once. A. must haveB. hadC. haveD. had hadBCB、主語從句中的虛擬語氣、主語從句中的虛擬語氣基本句型：基本句型：a. It is suggested, ordered, proposed, required, demanded, requested, insisted； + (should) do b. It is important, necessary, natural, desirable, strange, advisable, imperative c. It is a pity, a shame, no wonder

11、考題點擊：考題點擊：1. Is it necessary that he _ the examination? A. takesB. has to takeC. must takeD. take2. It is strange that he _ you this. A. would tell B. should tell C. had told D. has toldDBC、表語從句和同位語從句中的虛擬語氣、表語從句和同位語從句中的虛擬語氣 在 suggestion, proposal, idea, plan, order, advice 等名詞后面的表語從句、同位語從句中要用虛擬語氣，即（

12、should）+動詞原形。My idea is that we (should) get more people to attend the conference.I make a proposal that we (should) hold a meeting next week. 考題點擊：考題點擊：1. His suggestion that you _ once more sounds reasonable. A. try B. tries C. must try D. can tryA5. 虛擬語氣在其它情況下的使用虛擬語氣在其它情況下的使用 1) wish 后的虛擬語氣：后的虛擬語

13、氣：高考題點擊：高考題點擊：How I wish every family _ a large house with a beautiful garden! (02 上海) A. hasB. hadC. will haveD. had had2) as if 從句：從句：高考題點擊：高考題點擊： When a pencil is partly in a glass of water, it looks as if it _. (95 N) A. breaksB. has broken C. were broken D. had been brokenBC3) Its time 從句：從句： It is (high) time that 后面的從句謂語動詞要用過去式或用should加動詞原形，但should不可省略。 It is time that the children went to bed. It is high time that the children should go to bed. 類似的結(jié)構(gòu)為 would rather 從句： I would rather you attended the meeti