高中英语外研版必修四module5.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Module5 Grammar,情态动词的语法特征,情态动词除,ought,和,have,外,后面只能接不带,to,的不定式。,情态动词没有人称,数的变化,即情态动词第三人称单数不加,-s,。,情态动词没有非谓语形式,即没有不定式,分词等形式。,情态动词的形式,现在时,过去时,may,might,can,could,must,(had to),ought to,-,will,would,shall,should,need,-,dare,dared,-,used to,Two eyes,can,see more than one.,I am so strong that I,can,lift this stone.,He said that Jack,couldnt,finish his work in such a short time.,Could,you follow my step?,He is only four,but he,is able to,read.,She,was able to,do it without my help.,Will,you,be able to,come to my party tomorrow?,表能力,can couldbe able to,有时态变化,You,can,go now.,I,wont,let you down.,Could,I say it in Chinese?,May,I know your name?,Would,you mind closing the door?,Shall,we dance?,Might,I have a word with you?,语气,强 弱,表许可,征询意见,can,will,could/may/would/shall/might,There,must,be a mistake.,You,may,walk ten miles without seeing a house.,He,might,get there on time.,It,can,be true.,In those days few workers,could,support their families.,表可能性(猜测),must,may,might,can,could,在肯定句中,语气,强,弱,语气,强,弱,She,cant,be serious.,We,couldnt,have done better.,People,may not,pick flowers in this garden.,She was afraid they,might not,like the idea.,表不可能(猜测),cant,couldnt,may not,might not,在否定句中,mustnt,shouldnthad better not,We,mustnt,waste our time.,They,shouldnt,left so soon.,You,d,better not,disturb him.,表禁止,You,should,do what your parents tell you.,If you cant finish the book by then,you,must,come and renew it.,This is a lovely party,but we,have to,go because of the baby-sister.,The bridge was not wide enough so that somebody,had to,give way.,should,musthave to,表义务(应该),有时态变化,翻译下列句子,注意情态动词的不同用法:,Tom,you,mustnt,leave all your clothes on the floor like this!,2.He,must have completed,his homework;otherwise,he couldnt be enjoying himself by the seaside.,(表示禁止,意为“不许”),(must+have+过去分词,表示对过去事情肯定的推测),3.Helen,may,go on the trip with us,but she isnt quite sure yet.,4.-Isnt that Anns husband over,there?,-No,it,cant be,himIm sure,he doesnt wear glasses.,(表示可能性,意为“可能”),(对现在的否定性推测,意为“不可能”),5.I often see lights in that empty house.Do you think I,should,report it to the police?,6.Children under 12 years old in that country,must,be under adult supervision when in a public library.,(表示应该),表示义务或必要,意为“必须”,7.-Who is the girl standing over there?-Well,if you,must,know,her name is,Mabel.,8.-Ill tell Mary about her new job,tomorrow.-You,should have told,her last week.,表示主张,意为“一定要”,表示与过去事实的相反,意为“本应该”,9.You cant imagine that a well-behaved gentleman,should,be so rude to a lady.,10.The interest,shall,be divided into five parts,according to the agreement made by both sides.,表示吃惊,意为“竟然会”,(表示义务或规定),11.-Is John coming by train?-He should,but he,may,not.He,likes driving his own car.,12.Since it is raining,we,have to,stay indoors.,13.I,must,go now.There are a lot of things I want to do.,(表示对现在或将来的推测),(表客观需求),(强调主观意图),14.There,must,be some reason for his absence.,15.-,Need,I do the experiment again,after class?,-Yes,you,must,.(No,you,neednt/dont have to.),(表示对现在的肯定性推测),need引起的疑问句肯定回答用must.,Practice,That must be a mistake.No,it _ a mistake.,A.must not be B.neednt be,C.cannot be D.would not be,2._ I water the trees on Tuesday?No,you neednt.A.Can B.Must C.May D.Shall,3.He _ not pay unless he is punished to pay.A.shallB.will C.can D.would,4.I _ such a mistake again.A.shall never make,B.may never make,C.can never do,D.need never do,5._ I turn on the radio?,Youd better not.It is noisy enough in this room.,A.Shall B.Must C.Need D.Do,6.Lets go to the library this afternoon,_?,A.shall weB.will we,C.can we D.should we,7.Where are my keys?I _ lost them.,A.ought to B.should have,C.will have D.must have,8.Even if he has time,he _ shopping in town on Sunday.,A.wont go B.will go,C.wont go to D.doesnt go,9.He _ finished earlier.A.shall have B.ought to,C.could have D.must have,10.In case I _,I would try again.A.will fail B.would miss,C.should fail D.shall miss,11.Since the road is wet this morning,_ last night.A.it must rain,B.it must have rained C.it must be rained,D.it must have been rained,12.He asked me if he _ open the,window.A.shall B.would C.will D.should,13.Everyone _ do his best to,make the world safe and clean.A.can B.may C.should D.had to,14._ to have lunch with us today?A.Do you like,B.Would you like,C.Will you like,D.Have you like,15.Will you lend me your book?,Yes,I _.,A.will B.need C.can D.must,16.If I had time,_ see that new,movie at the Capital Theater.,A.I will B.I may,C.I shall D.I would,17.The English of her composition is too,good.She cant _ it herself.A.have to write,B.have written,C.write,D.be written,18.You _ the look on his face when he won the lottery.A.would have seen B.can be seeing C.must see D.may see,19.The light is out in her room;she _ to bed.A.must have gone B.had gone C.must be going D.must go,20.They _ that far;but they stopped to have a snack on the way.A.might be gone,B.needed go,C.could have gone,D.ought have gone,Correct the mistakes and say why.,John shoulds go to school on time.,At that time we thought we musted hand in our paper.,You must to finish your homework in time.,We dont can be there tomorrow.,They should may do that.,should,must,cant,should/may,从方框中选择合适的情态动词并用其适当形式(包括否定式)填空。,must,can,may,ought to,have to,should,1.He _ tell a lie,because he is an,honest boy.,2.The last bus has gone.We _ take,a taxi.,3.Harrys been driving all day he,_ be tired.,must,have to,cant,4.I knew things are hard with you,but,you _ try to get,over the difficulties.,5.The girl _ know the truth,but I,am not sure.,may,must/ought to/should,Choose the correct meaning.,The captain lets passengers use his cabin.,Passengers must use the captains cabin.,Passengers can use the captains cabin.,Passengers mustnt use the captains cabin.,2.There are lectures but you dont have to go to them.,It is necessary to go to the lectures.,It isnt necessary to go to the lectures.,It isnt possible to go to the lectures.,3.Swimming from the boat is forbidden.,You can swim from the boat.,You must swim from the boat.,You mustnt swim from the boat.,4.Youre not allowed to smoke.,It is against the rules to smoke.,You can smoke if you wish.,You dont have to smoke.,5.Passengers are required to take their passports with them.,They can take their passports with them.,they cant take their passports with them.,They must take their passports with them.,