模塊六unit3 虛擬語(yǔ)氣課件

1、Unit 3Understandingeach otherGrammar and usageUnreal conditionals(the subjunctive mood)虛擬語(yǔ)氣觀察下列兩個(gè)句子，根據(jù)體會(huì)說(shuō)出它們的差異：1. If it rains tomorrow, we will not climb the mountain. 2.If it rained tomorrow, we would not climb the mountain. real conditionalunreal conditionalthe subjunctive mood 語(yǔ)氣（mood）也是動(dòng)詞的一種形式變

2、化。它表示說(shuō)話者對(duì)所指的動(dòng)詞或狀態(tài)所持的態(tài)度，而且，在謂語(yǔ)動(dòng)詞上有所體現(xiàn)，語(yǔ)氣可分為三種：陳述語(yǔ)氣、祈使語(yǔ)氣和虛擬語(yǔ)氣。 Introduction 例1：These doggies are sleeping very soundly. （陳述語(yǔ)氣） 例2：Stop laughing!（祈使語(yǔ)氣） If you kept beating me like this, I would tell your teacher.例3：（虛擬語(yǔ)氣） 如果條件句假設(shè)的情況完全不存在或者實(shí)現(xiàn)的可能性很小,甚至可以說(shuō)幾乎沒(méi)有時(shí), 就需要用虛擬語(yǔ)氣來(lái)表達(dá), 也就是說(shuō),此時(shí)的條件句是非真實(shí)條件句。非真實(shí)條件句的謂語(yǔ)動(dòng)詞

3、形式：注意: 在非正式表述或口語(yǔ)中，if I/he/she/it之后, 可用was代替were。兩者在意義上沒(méi)有區(qū)別，但是were更為正式，特別是在表述心存懷疑的事情時(shí)：If Lucy were ready, we would start.假如露西準(zhǔn)備好了，我們就出發(fā)。與將來(lái)事實(shí)相反的條件句的結(jié)構(gòu)：條件句：Ifwas/were/did主句：would/could/might doIf it were sunny tomorrow, we would go camping.If I were free next Sunday, I would certainly go to your party

4、.注意:在與將來(lái)事實(shí)可能相反的條件句中,謂語(yǔ)動(dòng)詞還可用were to 或should +do來(lái)表示,如:If I were to fail my driving test, I would have to take it again next month.If he should come tomorrow, I would talk to him about it.If 從 句主 句與現(xiàn)在事實(shí)相反謂語(yǔ)動(dòng)詞用-謂語(yǔ)動(dòng)詞用-與過(guò)去事實(shí)相反謂語(yǔ)動(dòng)詞用-謂語(yǔ)動(dòng)詞用- 與將來(lái)事實(shí)相反謂語(yǔ)動(dòng)詞用-謂語(yǔ)動(dòng)詞用- 1)did2)be動(dòng)詞用 wereshould/would/ could/ might + d

5、oshould/would/ could/ might + doshould/would/could/ might +have + done1) did/were2)should do3) were to dohad + doneSummary注意：1. 除了if 外，還要關(guān)注其它幾個(gè)連詞，suppose, supposing,（假如）， provided, providing,(如果），Suppose there were no gravity, objects would not fall to the ground when dropped.2.用在lest(以免，免得）， for fe

6、ar that（唯恐）和in case引導(dǎo)的狀語(yǔ)從句中，這時(shí)謂語(yǔ)動(dòng)詞用（should）+動(dòng)詞原形1）She closed the windows lest she catch cold.2）The boy hid himself behind the door for fear that / in case his father (should) see him.3) Take your raincoat in case/ lest it (should )rain.Practice完成鳳凰學(xué)案p66自主學(xué)習(xí)A. If they had made preparations, they woul

7、d have succeeded. =Had they made preparations, they would have succeeded.They would have succeeded had they made preparations如果虛擬條件句中沒(méi)有were, had和should則不能省略if,當(dāng)然也不能倒裝。注意：Practice 1. Were it not for the snowy weather, we _ all right now. A. would be B. would have been C. were D. may be 2. If he _ me

8、tomorrow, I would let him know. A. should call B. should not have been able C. were not able D. are not able AA5. If you had rung us yesterday, we would_ you that the meeting had been put off. A. tell B. have told C. had told D. be tellingB高考鏈接：It might have saved me some trouble _ the schedule.(201

9、5江蘇高考） A. did I know B. have I known C. do I know D. had I known1. It might have saved me some trouble if I had known the schedule.2. If I had known the schedule, it might have saved me some trouble. the schedule, it might have saved me some trouble.(此題考察虛擬語(yǔ)氣表示與過(guò)去事實(shí)相反，省略if, 用部分倒裝，但難點(diǎn)是if 從句放在主句后面，看起來(lái)不習(xí)慣，有點(diǎn)別扭）D本節(jié)課總結(jié)：今天我們主要學(xué)習(xí)了以下三個(gè)內(nèi)容辨別連詞if 引導(dǎo)的真實(shí)性條件句和非真實(shí)性條件句。掌握虛擬語(yǔ)氣在if 從句中表示與三種事實(shí)相反的用法。（特別是主，從句謂語(yǔ)動(dòng)詞用什么形式）省略if, 助動(dòng)詞were, should, had 放在句首形成部分倒裝的用法。（注意if在主句前，后位置的靈活性）Practice:完成鳳凰