高二英语虚拟语气PPT课件

1、一、 陈述语气 用来陈述一个事实，或提出一个看法。有肯定，否定，疑问或感叹等形式。There are two sides to every question.They didnt watch fireworks yesterday evening.What can I do for you ?第1页/共48页例如:Shall I turn on the radio?How disappointed Tom was !What lovely flowers those are!第2页/共48页二、 祈使语气 用来表示说话人的请求，命令或劝告等。动词要用原形，其否定式在动词前加do not. Le

2、t me have a try.Dont be late again.Dont say it in Chinese. Say it in English.Lets go and play basketball.第3页/共48页三 虚拟语气表示说话人所说的话不是事实，而是一种与事实相反的假设，愿望，猜测或建议等等。第4页/共48页三 虚拟语气 （一）在条件句中的用法 1 与现在事实相反条件状语从句谓语条件状语从句谓语主句谓语主句谓语动词过去式动词过去式Should/would/ could /might+动词原形动词原形第5页/共48页例如:If I had time now, we shoul

3、d read it again.If she knew about it, she would come.If he were here, everything would be all right.第6页/共48页If I _you , I wouldnt return the call.A. be B. am C. was D. were 第7页/共48页2 与过去事实相反条件状语从句谓条件状语从句谓语语主句谓语主句谓语had +过去分词过去分词should/would/could/might +have +过去分词过去分词第8页/共48页例如:If he had seen you yes

4、terday, he would have asked you about it.If I had had the money last year, I would have bought a car.If they had known her address, they would have written to her.第9页/共48页EX1. If I _more time, I would have gone with you.A. had B. had had C. Have had D. would have EX2. If I had known that, I _ so .A.

5、 wouldnt do B. wouldnt have done C. Wont do D. have not done BB第10页/共48页3 与将来事实相反条件状语从句谓语条件状语从句谓语v主句谓语主句谓语动词过去式动词过去式Should/would/could/might + V原形原形Should +V 原形原形were to +V原形原形第11页/共48页例如: If it were Sunday tomorrow, I would go to see my friends there.If she should come, I should ask her for help.If

6、 you were to fail to catch the train, you might take the bus.第12页/共48页1. If it_ tomorrow, what would we do?A. rains B. were to rain C. would rain D. rain 2. If it should rain, I _go there tomorrow.A. will B. would not C. wont D. would not have BB第13页/共48页补充1.Without (没有),but for(要不是), otherwise(否则),

7、 这些词可以表示某种假设情况,从而省略条件句.I was busy last week, I to see you.= I was busy last week, if I busy last week, I to see you 第14页/共48页 electricity, human life_ quite different today.A. is B. will be C. would have been D. would be If there were no electricity,2. the Party, he _of hunger 30 years ago. A. would

8、 have died B. would dieC. must die D. must have died If there hadnt been the Party, he.DA第15页/共48页3. I was busy yesterday, I _your birthday party.A. Attended B. have attended C. Would attend D. would have attendedIf I hadnt been busy, I D第16页/共48页补充2.错综时间条件句主句谓语动词所表示的动作和条件从句谓语动词所表示的动作并不是同时发生,这时动词的形式

9、并不完全按照上述表格形式进行,而需要按照各自的时间来调整,这样的句子就叫错综时间条件句.第17页/共48页例如1: If you had followed the doctors advice (then), you all right . 如果你那时听了医生的话,你就好了. (主句与从句发生的时间不同,应按照主句与从句各自的时间做调整.) If you had followed the doctors advice, you all right . 如果你那时听了医生的话,你就好了. (主句与从句发生的时间同时.)第18页/共48页例如2: If you had watered them m

10、ore ,the crops still better. 如果你再给庄稼多浇些水,他们会长得更好.(指现在长得更好.) If you had watered them more, the crops still better. (表示对过去的虚拟) 如果你早就给庄稼多浇些水,他们就会长得更好第19页/共48页例如3 如果他昨天把功课都准备好的话,他现在就不会这么困难. If he well for his lessons yesterday, he so many difficulties .第20页/共48页1. If you were older (对现在进行虚对现在进行虚拟拟), I _

11、 you to go there yesterday(对过去进行虚拟对过去进行虚拟).A.will allow B. should allow C. would have allowed D. had allowed C第21页/共48页补充三:倒装形式表示虚拟条件句 从句中if有were ,had ,should等词语,可以将if省略,同时were ,had ,should提至句首,构成倒装.表示虚拟条件 (1) If I her, I her. = I her, I would tell her.(万一) (2) If I in your position, I it better. =

12、I in your position, I would do it better.第22页/共48页(3).If they preparations, they .= they made preparations, they would have succeeded.第23页/共48页1._, I would take an umbrella with me. A. Had I been you B. I were you C. Were I you D. I had been you C第24页/共48页( 二)在动词wish后面的宾语从句中，表示不可能实现的愿望，其动词形式有三种 1 表示

13、与现在事实相反的愿望，谓语动词用过去式。 I wish I had time to read. I wish I knew her address.第25页/共48页2 表示与过去事实相反的愿望，或表示已经发生的一件遗憾事，谓语动词用“had +动词过去分词”。 I wish I had studied very hard. He wishes he hadnt spent so much money.第26页/共48页3 表示将来难以实现的或很可能相反的愿望，谓语动词用“”。 I wish he would be more careful. I wish he would do the jo

14、b better. She wishes I would go with her.第27页/共48页1. I wish I _ able to tell him all about it last night.A. was B. were C. had been D. should be 2. How I wish I _to repair the watch! I only made it worse.A. had tried B. hadnt tried C. have tried D. didnt try 3. I wish I _what to do .A. knew B. have

15、known C. know D. would knowCBA第28页/共48页4. He wishes _mistakes.A. He doesnt always make B. he didnt always makeC. he wouldnt always make D. He wouldnt always making 5. I wish _.A. he were B. he leaves me alone C. He be left D. he would leave me aloneCD第29页/共48页(三)虚拟语气在其他从句中用法 1. 在“It +be +某些形容词或过去分词+

16、that”的句型中，主语从句中的动词形式常用“(should)+动词原形”。 常用的形容词有：necessary, important, impossible, natural, strange 常用的过去分词通常是表示建议， 要求，命令等suggested, required, requested, demanded, ordered, desired, advised,第30页/共48页例如:It is natural that he should say so.It is necessary that the problem should be discussed at once.第31

17、页/共48页例如 It is really strange that the girl _ so early. A. has been married B. has married C. be married D. would marryC第32页/共48页2.表示建议.要求.命令类的名词性从句一坚持. insist 二命令, order, command三建议,advise, suggest, propose,四要求,demand, require, request, desire ，通常用“should+动词原形”。should可以省略第33页/共48页例如He suggested tha

18、t we should visit the palace right away.She proposed that the meeting be put off.He ordered that they should start off immediately.I demanded that he should answer me at once.第34页/共48页在表示建议，要求，命令等名词之后的表语从句，同位语从句中，通常用“should+动词原形”。 这些名词有：idea, proposal, order suggestion, decision, advice His proposal

19、 is that the meeting (should) be put off. Our suggestion is that you (should) be the first to go.第35页/共48页4.as if ,as though as if ,as though引导的从句可以用来表示猜测，假定，谓语动词在从句中用表示，用“”表示。 He is running about as if he were a mad man. They talked as though they had been friends for years.第36页/共48页1.The two stran

20、gers talked as if they_ friends for years.A.were B. would be C. have been D. had been D第37页/共48页但是,需注意: 如果引导的从句所表示的内容与事实相符合,应该用陈述语气: It looks as if our team is going to win (场上情况表明有可能) It seems as if it is going to rain 各种迹象表明天要下雨.第38页/共48页一试身手 1.It seems as if it _rain. A. will B. is going to C. is

21、 to D. were going to 2.you talk as if you _there. A. were really B. has really been C. had really been D. would really beBC第39页/共48页5. 在“Its (about, high) time + that从句”结构中，从句中谓语动词用表示一种建议，意思是“该做某事了”。也可以You look so tired tonight. Its time you went to bed.Its high time you got up.It is time we started off.第40页/共48页1.It is high time that we _ off A. are B. were C. be D. will be B第41页/共48页6.if only句型“要是该多好啊！”