高中情態(tài)動詞虛擬語氣用法總結(jié)課件

1、Revision for Modal Verbs 1The basic uses of Modal Verbs 6、Dare 7、Need 8、ought to 1、Can / could 2、May / might 3、Must 4、Shall / should 5、will / would 21. Can 表示能力 The parrot can speak three languages.表示允許 Can I borrow the book from the library.表示可能性 Shanghai can be very cold in March.Could 過去式；語氣更委婉2.

2、 Can 與 be able toCan 表示一般能力，而be able to表示經(jīng)過學習訓練可以達到的 能力。31. Must 表示肯定的猜測,但只用于肯定句，而mustnt 表示“禁止、不準”Eg: She must be there. You mustnt smoke here.2. Must 、have toMust表示主觀Have to表示客觀需求 “不得不.”Eg: 1.You must eat it up. 2. Its raining, we have to go home.5Shall /should 1、第一、三人稱疑問句中表示“請求 或征求對方意見。Eg. Shall I

3、 get you a cup of coffee?2、第二、三人稱陳述句中表示命令/警告威脅 “應(yīng)該，必須”Eg: You should be here on time.should 過去式 語氣更委婉6Will/ would 1、表示意愿 Ill try my best to work out the difficulty.2、表示意圖What will you do?3、表示請示 Will you help me to put these books in order?71、情態(tài)動詞:用于否定、疑問句、條件從句中。 eg. 1. I dare not swim. ( dare not do

4、 sth) 2. How dare you do such foolish things? 3. I wont allow you to swim in the river, even if you dare do it.Dare 2 、實意動詞:后加不定式。 eg. She dares to jump. 8Ought to 1、應(yīng)該 一般可與should 互換 Eg: Lindy has a bad cold, we ought to visit her.2、其否定式為ought not toEg. The old ought not to eat too much sugar.10The

5、subjunctive mood 12一、虛擬語氣在條件狀語從句中的用法（if條件句）現(xiàn)在過去未來did / werehad donewould/could/should/might +V.(原)would/could/should/might+have+p.p.1. did / were2. should do3. were to dowould/could/should/might + V.(原)Eg: If I were you, I would work harder.Eg: If I had worked hard, I would have passed the exam.Eg:

6、1. If she should not come tomorrow, we should put off the meeting. 2.If it were to snow, I would be pretty happy. 從句 主句14If you _tomorrow, you _find the new manager working in the office. A. should come; would B. would come; wouldC. will come; should D. comes; mightAIf the parents _at the hospital e

7、arlier after the accident, the child would have been saved.A. arrives B. arrive C. had arrived D. has arrivedC15I didnt see your sister at the meeting. If she _, she would have met my brother.A. has come B. did come C. came D. had comeD If my lawyer _here last Sunday, he _ me from going .A. had been

8、; would have preventedB. had been; would preventC. were; would prevent D. were; would have preventedA16If you had told me in advance, I _him at the airport.A. would meet B. would had meetC. would have met D. would have meetCIf there were nor subjunctive mood, English _much easier.A. Will be B. would

9、 have been C. could have been D. would beD17二、虛擬語氣特殊句型： wish + 賓語從句現(xiàn)在：過去：未來：過去時 (did/were)過去完成時 (had done)would/could/might+V. shouldI wish I were a bird. (現(xiàn)在)I wish I hadnt made such a mistake. (過去)We wish our parents wouldnt punish(懲罰） us. (未來)18The picture exhibition bored me to death. I wish I_t

10、o it.A. hadnt gone B. havent goneC. didnt go D. could not have goneAHow I wish I _that! Everybody present was angry with me.A. didnt go B. hadnt done C. wouldnt do D. wasnt doingB20-He is a brave man.-Yes, I wish I _his courage.A. Have B. had C. will have D. would haveBTom can take his car apart and

11、 put it back together again. I certainly wish he _me how.A. teaches B. will teach C. has taught D. would teachD212. would rather that -現(xiàn)在：過去：未來：I would rather you paid me now. (現(xiàn)在)I would rather you had gone, too. (過去)Dont come. I would rather you came tomorrow. (未來)過去時過去時過去完成時233. as if /though + 從

12、句現(xiàn)在：過去：過去時過去完成時He looks as if he were drunk.They talked as if they had been friends for years.She loves the baby as if it were her own son.It seems as if it were spring.I remember the whole thing as if it had happened yesterday.24She sings as if she _a boy.CA. is B. was C. were D. areWe felt as if w

13、e _each other for years.CA. knew B. were knowing C. had known D. have knowing264.Its (about/high) time +that -過去時你該走了。我們該睡覺了。Its high time that you went.Its high time that you were going.Its time that we went to bed.275. 表示要求，命令，建議的虛擬語氣。賓語從句。常見動詞：一個堅持：insist兩個命令：order, command 三個建議：advise, suggest,

14、propose四個要求：demand , require, request, desire 這些動詞后面的賓語從句要使用虛擬語氣用法。即從句中的動詞 使用should + 動詞原形，或者將should省略。286.without和but for 構(gòu)成虛擬。(but for要不是)與現(xiàn)在事實相反，主句would/should/could/might +v原型與過去事實相反，主句would/should/could/might+ have done Without sunlight, peoples life would be different from today. But for your

15、help, I wouldnt have finished the work. Without your help, I would have failed. But for water, it would be impossible to live in the desert.307. If only (要是就好了) 與現(xiàn)在事實相反用過去式與過去事實相反 用過去完成時與將來事實相反 用should/could/would/might +v原型If only I knew his name!If only we had followed your advice!If only I could

16、see him again!要是我們的父母能和我們住在一起就好了。要是我沒錯過火車就好了！If only our parents could live with us!If only I hadnt missed the train!318. Its necessary /strange/ natural/ important + that - 從句中的動詞要用虛擬，即(should)+動詞原形It is important that we ( should ) master a foreign language.It is strange that she refuse to come to

17、 the party.Its necessary that we should study hard.32三： 虛擬語氣假設(shè)條件句型注意點：1.假設(shè)條件從句謂語動詞發(fā)生的時間與主句所假設(shè)的謂語動詞不一致，叫做錯綜條件虛擬語氣。主句和從句的謂語動詞要依照假設(shè)的時間而頂。If the weather had been finer, the crops would be growing still better.If you had followed the teachers advice, you wouldnt be in the hospital.332.假設(shè)條件虛擬倒裝。 條件從句中有sho

18、uld， were， had三個助動詞可以把if省略，并將這三個詞提至句首。If I were you, I would give it up.Were I you, I would give it up.If it were not for your advice, we couldnt have got over the difficulties.Were it not for your advice, we couldnt have got over the difficulties.34If I had had time, I would have run round that lake again.Had I had time, I would have run round that lake again.If there should be a flood, what should we do?Should there be a flood, what should we do?35_the exam, he would have attend a college.A. If he passed B. Had he passe