外研社必修四 module6 grammarmm

1、語法專題突破語法專題突破品味語法品味語法1When I got to the airport，they may have just left home.2Its surprising that you can drive. You must have learned it before.3There is nowhere to find them. Where can they have gone?4You neednt have taken a taxi here，for it was very near to my house.Shall:用于第一和第三人稱疑問句用于第一和第三人稱疑問句,

2、 表示征求對方的意見表示征求對方的意見,請求許可請求許可。Shall he come in?要他進來嗎要他進來嗎?Shall we go now?我們我們現(xiàn)在就走嗎現(xiàn)在就走嗎?Shall:用于第二和第三陳述句中用于第二和第三陳述句中,表示決心表示決心,強制強制,命令命令,警告警告,允諾等允諾等。The shares shall be divided into five parts according to the law. 根據(jù)法律這些股份將被分成五份根據(jù)法律這些股份將被分成五份。Will:表示客觀規(guī)律表示客觀規(guī)律Tomorrow will be Sunday.表示愿意：表示愿意：If you

3、 will wait, Ill call for you.明天將是星期日明天將是星期日。如果你愿意等如果你愿意等, 我就給你叫他我就給你叫他。表示臨時決定表示臨時決定-You have forgotten to turn off the light.-Really? I will go and turn it off.你忘記關(guān)燈了你忘記關(guān)燈了。真的嗎真的嗎？我這就去關(guān)上我這就去關(guān)上。 1. must have +done sth表示對過去事情的肯定推測，譯成表示對過去事情的肯定推測，譯成“一定一定做過某事做過某事”，該結(jié)構(gòu)只用于肯定句。，該結(jié)構(gòu)只用于肯定句。 2. ought to shoul

4、d have done sth.本應(yīng)該做某事，而事實上并沒有做。本應(yīng)該做某事，而事實上并沒有做。 1.You ought to / should have been more careful in this experiment.3. “shouldnthave done”本來不應(yīng)該做某事，而實際做了。本來不應(yīng)該做某事，而實際做了。1. 4. neednt have done sth本沒必要做某事而做了本沒必要做某事而做了I dressed very warmly for the trip, but I neednt have done so. The weather was hot.5. n

5、eedhave done”本來需要做某事而沒有做。本來需要做某事而沒有做。He need have hurried to the station. In that case，he wouldnt have missed the train.他本來需要快點去車站，那樣的話，他就他本來需要快點去車站，那樣的話，他就不會誤了火車。不會誤了火車。6“couldhave done”“本來能夠做某事而沒有做本來能夠做某事而沒有做”。He could have passed the exam，but he was too careless.本來他能夠通過考試的，但是他太粗心了。本來他能夠通過考試的，但是他太

6、粗心了。7“canthave done”“不可能做過某事不可能做過某事” 對過去事情的否定推測。對過去事情的否定推測。Mary cant have stolen your money. She has gone home.Mr.Smith cant have gone to Beijing，for I saw him in the library just now.4. would like to have done sth本打算做某事而沒有做本打算做某事而沒有做I would like to have read the article, but I was very busy then.情態(tài)

7、動詞情態(tài)動詞+ have +過去分詞過去分詞 表示否定的情態(tài)動詞的用法表示否定的情態(tài)動詞的用法:mustnt 不準(zhǔn)；禁止不準(zhǔn)；禁止 neednt 沒必要沒必要 ( = dont have to )cant 不能；不可能不能；不可能may not 不可以；可能不不可以；可能不shouldnt 不應(yīng)該不應(yīng)該 ( = ought not to )Function-1. Presentation1, 23unlikelyFUNCTION小結(jié)小結(jié):may: 可能會可能會,或許會或許會might: 可能可能,或許或許(語氣更不肯定語氣更不肯定)unlikely: 可能性不大的可能性不大的(形容詞形容詞)1

8、.It may be a new species.它可能是一種新的物種它可能是一種新的物種。他他或許不在那兒或許不在那兒。2.He may not be there.語語氣氣強強 弱弱3. His suggestion might be worth thinking about.他的他的建議或許值得考慮建議或許值得考慮。我有我有許多或許你感興趣的書許多或許你感興趣的書。4. I have got a lot of books that might interest you.7點鐘前她可能到不了點鐘前她可能到不了。他他不大可能受傷不大可能受傷。5. She is unlikely to arri

9、ve before 7.6. It is unlikely that he got injured.Function-3. Practice(4m) Do activity 2 on page 54.1Think of more reasons why the dinosaurs might have disappeared.注注: word : word 文檔文檔點擊此處鏈接點擊此處鏈接Individual activity.用所給動詞的適當(dāng)形式填空用所給動詞的適當(dāng)形式填空1Your mother must _(wait) for you now.答案：答案：be waiting2You c

10、ould _(do)better，but you didnt try your best.答案：答案：have done3You shouldnt _(take) away my measuring tape，for I wanted to use it.答案：答案：have taken1. Could I borrow your dictionary? Yes, of course, you_. A. might B. will C. can D. should 答案答案C could表示委婉的語氣，并不為表示委婉的語氣，并不為時態(tài)。答語中時態(tài)。答語中of course，表示肯定的，表示肯定

11、的語氣，允許某人做某事時，用語氣，允許某人做某事時，用can和和 may來表達，不能用來表達，不能用could或或might。2. Shall I tell John about it?No, you _. Ive told him already. A. needntB. wouldnt C. mustntD. shouldnt答案答案A neednt 不必，不用。不必，不用。 wouldnt 將不將不, , 不會的。不會的。 mustnt 禁止、不能。禁止、不能。 shouldnt不應(yīng)該。不應(yīng)該。本題為不需要，不必的意思，應(yīng)用本題為不需要，不必的意思，應(yīng)用neednt。 3. Dont f

12、orget to come to my birthday party tomorrow._.A. I dont B. I wont C. I cant D. I havent 答案答案B will既可當(dāng)作情態(tài)動詞，表請既可當(dāng)作情態(tài)動詞，表請求、建議、也可作為實義動詞表求、建議、也可作為實義動詞表“意愿、意志、決心意愿、意志、決心”，本題表示，本題表示決心，選決心，選B。 25.The children lost in the woods; otherwise, they would have been at the lakeside camp as scheduled. （2013陜西）陜西）

13、 A. must have got B. must get C. should have got D. should get26. Why are your eyes so red? You _ have slept well last night. Yeah, I stayed up late writing a report. （2013遼寧）遼寧） A. cant B. mustnt C. neednt D. wont 其它情態(tài)動詞小結(jié)其它情態(tài)動詞小結(jié):must have done:對過去或已完成的動作作出對過去或已完成的動作作出肯定肯定的推測的推測can/could not have done