2020高考英語(yǔ)情態(tài)動(dòng)詞專題(共44張PPT)

1、2020高考英語(yǔ)情態(tài)動(dòng)詞專題(共44張PPT)2020高考英語(yǔ)情態(tài)動(dòng)詞專題(共44張PPT)can a. for ability (skill/ knowledge)能力b. for guessing （疑問(wèn)，否定）猜測(cè)c. for request/permission 請(qǐng)求/許可d. for possibility 客觀可能性（可以肯定句） e. used especially in expression of surprise 驚異，懷疑，不相信等態(tài)度f(wàn). an offer/ suggestion 提議can a. for ability (skill/ kMatch the usage

2、of can in the sentences.Jim isnt very good at math or science, but he can speak English very well ._2. Can I use your computer for a while? Mine is being repaired. _ 3. Experienced teachers can make mistakes._acdMatch the usage of can in the 4. That cant be Mary. She is in New York. _5.- Can I go ho

3、me? -No, you cant. _ 6. How can it be true?_7. Can I help you ? You can eat in a restaurant if you like._8. Jogging can be harmful to health._bcefd 4. That cant be Mary. She i 注意： can 表示能力時(shí)與be able to do 的區(qū)別 abilitymanage to do / succeed in doingHe _ swim across the river.The house was burning, but

4、he _escape before the ceiling fell . canwas able to 注意： abilitymanage to do He 注意： 2. 句式 (cant too怎樣都不為過(guò)） You cant be too careful when you cross the street. A woman cant have too many hats.3. cant help doing 忍不住做4. as .as I/ you/ can 盡可能=asas possible 注意： could a. for ability 能力(past tense)for guess

5、ing （疑問(wèn)，否定）猜測(cè)for possibility（可能性）d. for politeness （語(yǔ)氣的委婉,無(wú)過(guò)去之意） e. Used in subjunctive mood （虛擬語(yǔ)氣）could a. for ability 能力(pastMatch the usage of could in the sentences.My grandfather could drive well even at the age of eighty._2. Could you please show me the way to the park ?_London could be rather

6、 cold in summer while I stayed there. _adcMatch the usage of could in thMatch the usage of could in the sentences.4. Could he be at home at the moment?_If I could solve the problem alone, I wouldnt ask you ._6. If I had had more time, I could have finished the work. _beeMatch the usage of could in t

7、hmay for request/permission 請(qǐng)求/許可(比can 正式） for guessing （常用于肯定/否定句） for wishes in subjunctive mood（虛擬語(yǔ)氣表示祝愿）May God be with you! 目的狀語(yǔ)從句中may for request/permission 請(qǐng)求Match the usage of may in the sentences.May I ask you a personal question?_2. It may snow tomorrow. _You may go home now ,Susie._ May s

8、he rest in peace._ Mr Smith speaks English slowly in order that his students may follow him. _abacdMatch the usage of may in the might may 的過(guò)去時(shí)（猜測(cè), 目的狀語(yǔ)從句等）虛擬語(yǔ)氣（”也許會(huì)”/ “要是就好了”表達(dá)責(zé)備）She said that she might come late.He got up early so that he might catch the first bus.If he had got up a little earlier

9、, he might have been in time for the train.You might have told me the truth.might may 的過(guò)去時(shí)（猜測(cè), 目的狀語(yǔ)從句等）注意： may 提問(wèn)表示請(qǐng)求，許可時(shí)， 注意回答 通常不用may.肯定回答： Why not? / Certainly. / Sure./ Yes, please.否定回答： Im sorry, but. / Im afraid.注意： 注意： 2.may / might 表示猜測(cè) may/ might + 動(dòng)詞原形 對(duì)現(xiàn)在猜測(cè) may/ might + have done 對(duì)過(guò)去猜測(cè) It

10、 may / might rain tonight. He might have left it in your house.注意： 注意： 3.may / might as well do （had better 的委婉表達(dá)“不妨”“還是為好”）You may as well stay at home since it is raining heavily.注意： must for necessity/ an order/ obligation“必須” （肯定句， 疑問(wèn)句）for guessing (猜測(cè)， 用于肯定句） “禁止”（否定句） do in spite of being unwi

11、se or unwanted （非得，偏要）e. 必然性（注定）f. 勸誘must for necessity/ an order/ Match the usage of must in the sentences.-We must stay at home, mustnt we? -Yes, you must./ No, you neednt / No, you dont have to._Man must die._Its ten oclock. He must be sleeping._Its delicious. You must have a try._ aebfMatch the

12、usage of must in the 5. Look ,all his stuff is gone. He must have come back last night._6. You must be joking. _7. Why must you play the piano at mid-night?_8. -Must I wash the dishes at once? -Yes, you must ./No,you neednt._bbda bbda關(guān)于表示猜測(cè)的情態(tài)動(dòng)詞must 肯定句 may/ might 一般肯定句或否定句 can / could 一般否定句或疑問(wèn)句對(duì)現(xiàn)在猜

13、測(cè)：情態(tài)動(dòng)詞+ be / do 對(duì)“此時(shí)正在”猜測(cè)：情態(tài)動(dòng)詞+be doing 對(duì)過(guò)去猜測(cè) ：情態(tài)動(dòng)詞+ have done關(guān)于表示猜測(cè)的情態(tài)動(dòng)詞must 肯定句比較He must be a student.（肯定句）He may / might be a student.（肯）He may / might not be student.（否）He cant/ couldnt be a student.（否） 可能性對(duì)現(xiàn)在猜測(cè)：情態(tài)動(dòng)詞+ be / do 比較He must be a student.（肯定句）可比較He must be sleeping now（肯定句）He may / mi

14、ght be sleeping.（肯） He cant/ couldnt be sleeping.（否） 可能性“此時(shí)正在”猜測(cè)：情態(tài)動(dòng)詞+be doing比較He must be sleeping now（肯定句比較 He succeeded in the exam. He must have worked hard .(一定努力了）He may/ might have come back from abroad. (也許已經(jīng)回來(lái)了）He cant/ couldnt have attended that meeting because we were togetherat that time

15、.（不可能參加了） 可能性對(duì)過(guò)去猜測(cè) ：情態(tài)動(dòng)詞+ have done比較 He succeeded in the exam. Hwill for future tense （助動(dòng)詞，構(gòu)成將來(lái)時(shí)） 情態(tài)動(dòng)詞用法for a will （意愿）for a habit/ a tendency （習(xí)慣， 傾向） for a request （ 疑問(wèn)句，第二人稱，表請(qǐng)求） 祈使句的反義疑問(wèn)句will for future tense （助動(dòng)詞，構(gòu)Match the usage of will in the sentences.She will be back in a minute._2. When I

16、 am on a bus , I will read newspapers._ I am free now, but I will not help you._4. Will you pass me the salt please?_5. Come with me, will you?_ 6. Oil will float on water._將來(lái)時(shí)bacdbMatch the usage of will in thewould for future tense （助動(dòng)詞，構(gòu)成過(guò)去將來(lái)時(shí)） 情態(tài)動(dòng)詞用法委婉地提出請(qǐng)求，建議，和看法 強(qiáng)烈的意愿，主張過(guò)去的習(xí)慣,傾向（“過(guò)去常?！?）虛擬語(yǔ)氣 w

17、ould for future tense （助動(dòng)詞，Match the usage of would in the sentences.She said she would be back in a minute._2. His father was angry because he wouldnt obey him._ When I was a child , I would often go skiing._ 5. Come with me, will you?_ 6. Oil will float on water._過(guò)去將來(lái)時(shí)bcMatch the usage of would in

18、 thMatch the usage of would in the sentences. 4. Would you please lend me a bike?_ 5. If he had worked hard , he would have passed the exam._6. Would you mind opening the window? Would you like to go with me?_7. At that time people would starve ._adacMatch the usage of would in thshall for future te

19、nse（用于第一人稱主語(yǔ) I，We ） for promise for rules & regulationfor threatfor determinnation Shall he/she/it/they(第三人稱）.? = Do you want/Would you liketo do ?g. 反義疑問(wèn)句（Lets.）h. Shall we .? f, g ,h 征求對(duì)方意見(jiàn)（一，三人稱）shall for future tense（用于第一人稱Match the usage of shall in the sentences.1. We shall be sleeping at that

20、 time_2. I shall never forget the shame. _3. Fine shall be paid in cash._4. Lets go now , shall we ?_5. We shall get there before dark._6. Shall he come at once?_aegcafMatch the usage of shall in thMatch the usage of shall in the sentences. 7.If you cheat me, you shall never get away with it._8. Don

21、t worry . You shall get your books next Monday._9. Shall we go to the concert tonight?_10. The law says nobody shall kill others. _dbhcMatch the usage of shall in thshoulda. To express duty/ what is necessary or desirable （“應(yīng)該”語(yǔ)氣弱于must/ought to ）b. To express likelihood esp. a desirable result （“應(yīng)該”

22、表推測(cè)）c. “竟然”表達(dá)驚奇，差異d. should have done “本該做”表責(zé)備，后悔e. 用于虛擬語(yǔ)氣句式shoulda. To express duty/ whaMatch the usage of should in the sentences.1. You should apologize to him._2. Its strange /surprising /a pity /a shame that he shouldnt have been invited._3. He shouldnt have told others my secret. _4. The photo

23、 should be ready by tomorrow morning._5. I am surprised that you should speak in such a way._acdbcMatch the usage of should in t6. You shouldnt be so impatient with him. _7. She demanded that they should leave at once ._8. I should have been kinder to him when he was here._9. I dont understand why h

24、e should have made such a mistake._10. There shouldnt be any difficulty about getting you a visa._aedcb6. You shouldnt be so impatieshould 虛擬語(yǔ)氣用法的總結(jié) 對(duì)過(guò)去責(zé)備，差異，驚奇，推測(cè)，無(wú)論翻譯“本該”“竟然” “按理說(shuō)”都要should (not) + have doneI am sleepy today. I shouldnt have stayed up late last night.“本不該” It is a shame that he sho

25、uld have cheated in the exam.“竟然”Its ten oclock. The train should have already left. “按理說(shuō)已經(jīng)”should 虛擬語(yǔ)氣用法的總結(jié)should 虛擬語(yǔ)氣用法的總結(jié)常見(jiàn)句式（名詞性從句） Its a pity / a shame/ that should do Its strange/ necessary /vital/natural /. that . should do.主語(yǔ)desire/ demand/ insist/ suggest/ advise/ command / request/ require

26、/recommend/ order /propose/urge/. that.(should) do.（賓語(yǔ)從句）should 虛擬語(yǔ)氣用法的總結(jié)should 虛擬語(yǔ)氣用法的總結(jié)常見(jiàn)句式 It is suggested/ ordered/ required.that (should ) do.（主語(yǔ)從句）My suggestion / advice /order/ requirement/ proposal/ is that.(should) do .（表語(yǔ)從句） Youd better follow my suggestion/advice that . (should ) do .（同位語(yǔ)

27、從句） should 虛擬語(yǔ)氣用法的總結(jié) (aux )情態(tài)動(dòng)詞，后接不定式to do “應(yīng)該”（語(yǔ)氣比should 強(qiáng)，比must 弱）肯定形式：You ought to come on time.否定形式：You ought not (oughtnt) to drink too much.疑問(wèn)形式：Ought I to go there alone? Yes, you ought ( to ) ought (aux )情態(tài)動(dòng)詞，后接不定式to do “應(yīng)該”（語(yǔ)氣注意 ought to do（“應(yīng)該”肯否定回答可省略為“yes, you ought to . / No, you ought

28、not to” ） ought to have done（“本應(yīng)該”對(duì)過(guò)去事情虛擬，肯否定回答“Yes, I ought to have./ No, I ought not to have”)注意 ought to do（“應(yīng)該”肯否定回答可省略為“Ex1. -You ought to do it more carefully this time, you know? -Yes, I _.Ex2. -He failed again. - He_ (work) hard before the exam. ought to ought to have workedEx1. -You ought to do it mo 實(shí)義動(dòng)詞（有