1、外研版高一年级(必修4)Module 5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 有的情态助动词有现在时和过去时两种形式。有的有现在时而无过去时。有的有过去时而无现在时。现在时过去时maymightcancouldmust(had to)ought to-willwouldshallshouldneed-daredared-used to Two eyes can see more than one.I am so strong tha
2、t 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.C
3、ould 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,willcould/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
4、workers could support their families.表可能性(猜测)must may,might,can,could肯定句语气强弱语气强弱 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,couldntmay not,might not否定句mustnt,shouldnthad better not We mustnt wast
5、e our time.They shouldnt left so soon.Youd better not disturb him.表禁止 You should do what your parents tell you.If you cant finish the book by then,you mustcome 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
6、 way.should,musthave to表义务(应该)有时态变化翻译下列句子,体会情态动词的不同用法:1.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
7、 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”)(对目前状态表示否定推测,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 supervisio
8、n 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 r
9、ude 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 thin
10、gs 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.)(表示对现在事情的推测)need引起的疑问句肯定回答用must.Practice1.That must be a mistake.No,it _ a mistake.2.A.must not be B.neednt be 3.C.cannot
11、 be D.would not be 4.2._ I water the trees on Tuesday?No,you neednt.A.Can B.Must C.May D.Shall3.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 do5._ I turn on the radio?Youd better not.I
12、t 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.
13、wont go to D.doesnt go9.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 miss11.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 hav
14、e 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 to14._ to have lunch with us today?A.Do you like B.Would you like C.Will you like D.Have you like15.Will you lend me your book?Ye
15、s,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 lot
16、tery.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 goneB.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 21.As physics i
17、s hard enough,I _ study it.A.am not able B.couldnt C.am not able to D.cannot 22.You _ to the meeting this morning if you have something important to do.A.neednt to come B.dont need come C.dont need coming D.neednt comeCorrect the mistakes and say why.John shoulds go to school on time.At that time we
18、 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.shouldmustcantshould/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,should1.He _ tell a lie,because he is an honest boy.2.The last bus has gone.We _ tak
19、e a taxi.3.Harrys been driving all day he _ be tired.musthave tocant4.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.maymust/ought to/should高考链接1.I often see lights in that empty house.Do you think I _ report it to the police?
20、(2004全国卷III)A.should B.may C.will D.can2.Tom,you _ leave all your clothes on the floor like this!(2005全国卷I)A.wouldnt B.mustnt C.neednt D.may notAB3.Is Jack on duty today?No,it _ be him.Its his turn tomorrow.(四川2006)A.mustnt B.wont C.cant D.neednt4.Liza _ well not want to go on the trip she hates tra
21、veling.(2008全国卷II)A.will B.can C.must D.mayCD5.Must we finish copying all these articles this morning?No,you _.A.mustnt B.havent C.not have to D.dont have to DTalking about obligation,permission and prohibitionChoose the correct meaning.1.The captain lets passengers use his cabin.a.Passengers must u
22、se the captains cabin.b.Passengers can use the captains cabin.c.Passengers musnt use the captains cabin.2.There are lectures but you dont have to go to them.a.It is necessary to go to the lectures.b.It isnt necessary to go to the lecrures.c.It isnt possible to go to the lectures.3.Swimming from the
23、boat is forbidden.a.You can swim from the boat.b.You must swim from the boat.c.You mustnt swim fromt the boat.d.4.Youre not allowed to smoke.e.It is against the rules to smoke.f.You can smoke if you wish.g.You dont have to smoke.5.Passengers are required to take their passports with them.a.They can take their passports with them.b.they cant take their passports with them.c.They must take their passports with them.
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