12.情態(tài)動(dòng)詞-中考英語(yǔ)專題復(fù)習(xí)ppt課件

1、 The basic uses of Modal Verbs 6、Dare 7、Need 8、ought to 9、三點(diǎn)說(shuō)明、三點(diǎn)說(shuō)明 10、典型錯(cuò)誤、典型錯(cuò)誤 1、Can / could 2、May / might 3、Must 4、Shall / should 5、will / would 1. 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(guò)去式；語(yǔ)氣更委婉2.

2、Can 與 be able toCan 表示習(xí)慣能力，表示習(xí)慣能力， 而而be able to表示經(jīng)過(guò)努力而做成了某事。表示經(jīng)過(guò)努力而做成了某事。2. 在否定結(jié)構(gòu)中，二者可以互換。在否定結(jié)構(gòu)中，二者可以互換。3. can./could + have +p.p1.在否定、疑問(wèn)句中表示在否定、疑問(wèn)句中表示“對(duì)過(guò)去發(fā)生行為對(duì)過(guò)去發(fā)生行為 的可能性猜測(cè)。的可能性猜測(cè)。2. 在肯定句中表示在肯定句中表示“本來(lái)可以做而未做本來(lái)可以做而未做”The door was locked. She couldnt have been at home.You could have been more careful.

3、1. May 表示可能性表示允許表示祝愿Might 過(guò)去式；語(yǔ)氣更委婉2. may/might + have +p.p1.在否定、肯定句中表示對(duì)過(guò)去動(dòng)作的推測(cè)在否定、肯定句中表示對(duì)過(guò)去動(dòng)作的推測(cè) “也許是也許是”2. Might+have+p.p表示虛擬，表表示虛擬，表“勸告、責(zé)備之意。勸告、責(zé)備之意。”Eg. 1. She may be still waiting for us. 2. May I come in? 3.May you have a happy holiday.Eg. 1. He might have spoken to her yesterday. 2. You might

4、 have told me earlier. 土豆-服裝 1. Must 表示肯定的猜測(cè)表示肯定的猜測(cè),但只用于肯定句，但只用于肯定句，而而mustnt 表示表示“禁止、不準(zhǔn)禁止、不準(zhǔn)”2. Must 、have to 與have got toMust表示主觀表示主觀Have to表示客觀需求表示客觀需求Have got to 多見于口語(yǔ)多見于口語(yǔ)3. must + have +p.p對(duì)過(guò)去事情的肯定猜測(cè)。對(duì)過(guò)去事情的肯定猜測(cè)。Eg. The road id wet. It must have rained last night.1、Shall /should 1、第一、三人稱疑問(wèn)句中表示、第

5、一、三人稱疑問(wèn)句中表示“請(qǐng)求請(qǐng)求 或征求對(duì)方意見?；蛘髑髮?duì)方意見。Eg. Shall I get you a cup of coffee?2、第二、三人稱陳述句中、第二、三人稱陳述句中表示命令表示命令/警告警告威脅威脅 “該回必須該回必須”2、shall/should + have +p.p ought to表示本應(yīng)該做而未做。表示本應(yīng)該做而未做。should 過(guò)去式 語(yǔ)氣更委婉Eg. You should have been five minutes ago.1、表示意愿、表示意愿 Ill try my best to overcome the difficulty.2、表示意圖、表示意圖W

6、hat will you do?3、表示請(qǐng)示、表示請(qǐng)示 Will you help me to put these books in order?4、表示習(xí)慣動(dòng)作、表示習(xí)慣動(dòng)作She will sit for hours without saying a word.1、情態(tài)動(dòng)詞用于否定、疑問(wèn)句；條件從句中。、情態(tài)動(dòng)詞用于否定、疑問(wèn)句；條件從句中。 eg. 1. Dare you go here alone? 2. How dare you do such foolish things? 3. I wont allow you to swim in the river, even if you

7、dare do it.Dare / dared2 、做實(shí)意動(dòng)詞后加不定式。、做實(shí)意動(dòng)詞后加不定式。 eg. I have never dared to tell him about it. Need /needed 1、情態(tài)動(dòng)詞用于否定句，疑問(wèn)句。2、實(shí)意動(dòng)詞用法似dare,用作不定式。3、need + not + have +p.p 表示“本來(lái)不需要做而做了。Ought to 1、其否定式為、其否定式為ought not to2、ought to + have + p.p 表示本來(lái)應(yīng)該做而沒(méi)有做到。表示本來(lái)應(yīng)該做而沒(méi)有做到。Eg. You ought not to have cut away

8、 the trees around the old building.三點(diǎn)說(shuō)明三點(diǎn)說(shuō)明1、情態(tài)動(dòng)詞 + v 表示對(duì)現(xiàn)在或?qū)?lái)現(xiàn)在或?qū)?lái)動(dòng)作的猜測(cè)。 情態(tài)動(dòng)詞 + have + p.p表示對(duì)過(guò)去過(guò)去動(dòng)作的猜測(cè)。2、情態(tài)動(dòng)詞的過(guò)去式與原形相比，多點(diǎn)禮貌，少點(diǎn)冒昧， 語(yǔ)氣更為委婉。情態(tài)動(dòng)詞在一般疑問(wèn)句中的回答： Can you sing? May I come in? Must I hand in the book now? Need I finish it now?Yes, I can.No, I cant.Yes, you may.No, you mustnt.Yes, you must.No,

9、 neednt /dont have to.Yes, you must.No, you neednt.1. He mustnt be in the classroom. ( )Cant2. You might leave the bag on the bag. ( )might have left3. You must have seen the film last week, havet you? ( )didnt you 4. Li ming must have been to Japan, didnt he? ( )hasnt he1.-There were already five p

10、eople in the car but they managed to take me as well. -It _a comfortable journey. ( )cant be B. shouldnt beC. mustnt have been D. couldnt have beenDB3. The fire spread through the hotel very quickly but everyone _get out. ( )had to B. wouldC. could D. was able toDB 5. With so much work on hand, you

11、_to see the game last night. ( )mustnt go B shouldnt goC. could have goneD. shouldnt have goneDD7.She must have forgotten about the class _? ( )doesnt she B. mustnt sheC. hasnt she D. won t sheCCA10.Toms father promised, “You _have a new computer if you pass the coming examination,” ( )can B. should C. shall D. mayCD12.-Would you change this bucket for