湖南省株洲市第四中学高中英语（牛津译林版必修4）同课异构课件 ：UNIT 2《SECTION FOUR GRAMMAR AND USAGE》 2.ppt

1、Unit 2 Sports events 情态动词modal verbsHow many modal verbs do you know?can couldmay mightshall shouldmust will wouldought tohave to dare (darent)need (neednt)used to表示推测不表示推测modal verbs1.To talk about ability2.To talk about obligation3.To talk about uncertainty4.To talk about permission5.To make reque

2、sts6.To make suggestions7.To make offers8.To give advice不表示推测时,注意以下用法：can,could,be able to *be able to 能用于各种时态。can/could 只能表示现在或过去的能力。*was/were able to:“设法做成某事”相当于managed to do sth.succeeded in doing sth.All the people trapped in the burning house were able to get out of it.1.To talk about ability 2

3、.To talk about obligationought to/should have to must*have to 能用于各种时态,且有人称和数的变化.ought to 的否定式为ought not to/oughtnt to强 3.To talk about uncertaintymight may should ought to will must强may/might,can/could*might,could 比较委婉,一般多用于疑问句.*can,may 表达的语言比较随便.*在以could,might 表示征询对方意见或表示请求时，回答应相应使用can,may.4.To tal

4、k about permissionwill can could would5.To make requests6.To make suggestionsShall we dosome exercise this morning?7.To make offers8.To give adviceShall I get a ticket for you?You should not/ought not to eat a lot before swimming.1.A computer _ think for itself;it must be told what to do.A.cant B.co

5、uldnt C.may not D.might not2.The fire spread through the hotel very quickly but everyone _ get out.A.had to B.would C.could D.was able toA D 3.They will _ run this machine on theirown in three months.A.can B.could C.may D.be able to4.That big cinema _ seat 2,000 people.A.can B.should C.ought to D.is

6、 able toD A 5.Could I borrow your dictionary?Yes,of course you _.A.might B.will C.can D.should6.Might I watch TV after supper?Yes,you _.A.may B.must C.might D.canC A 表示推测情态动词的重要用法.1.You must be Mr Smith-I was told to expect you here.2.He must have known what we wanted.3.We may have read the same rep

7、ort.4.He cant have slept through all that noise.5.Theres someone outside-who can it be?6.What can they be doing?7.These pills might help to cure your disease.8.You could be right,I suppose.表示推测情态动词的重要用法.肯定的推测可能的推测否定的推测疑问的推测must对将来对现在对过去情态动词may,mightcould cant,couldntcan,could+V.+V.+have done常见must b

8、e +be doing+V.+V.+have done +be doing+V.+V.+have done +be doing+V.+V.+have done +be doing 1.I dont know where she is,she _ be in Wuhan.2.At this moment,our teacher _ our exam papers.这时，我们老师想必在批改试卷。3.The road is wet.It _ last night.昨晚一定下雨了.4.Your mother _ for you.你妈妈一定一直在找你。maymust be markingmust hav

9、e rainedmust have been looking5.Philip _ seriously in the car accident.菲利普可能在车祸中受了重伤.6.-Linda has gone to work,but her bicycle is still here.-She _(go)by bus.7.Mike _ his car,for he came to work by bus this morning.迈克一定还没有找回他的车，因为早上他是坐公共汽车来上班的。may(might)have been hurtmay(might)have gonecant have fou

10、nd高考考题:1.I thought you _like something to read,so I have brought you some books.A.may B.might C.would D.must 2.Where is my pen?I _it.A.might lose B.would have lost C.should have lost D.must have lost3.I didnt hear the phone.I _asleep A.must be B.must have been C.should be D.should have beenBDB4.-The

11、re were already five people in the car,but they managed to take me as well.-It _a comfortable journey A.cant be B.shouldnt be C.mustnt have been D.couldnt have been 5.Its nearly seven oclock.Jack _be here at any moment.A.must B.need C.should D.could D D 不同的“肯定”程度可按下列层次排列：He is at home.(事实)He must be

12、 at home.（非常肯定的推断）He could be at home.（很可能）He ought to be at home.（很可能）He may be at home.（仅仅可能而已）He might be at home.（或许,非常不确定）He might not be at home.（也许不在家）He may not be at home.（比might可能）He couldnt be at home.（很可能不在家）He cant be at home.（一定不在家）He isnt at home.（事实）Notice!1.情态动词：shall,will 的多种意义:sha

13、ll/will+动词原形:*shall 可表示必须、命令、警告或征询意见.*will 可表示意愿、常出现的动作、在疑问句中表示请求和建议.*均可表示将来。过去时为 should,would.1.He _ be punished if he disobeys.如果他不服从,就要受到惩罚.2.We are not going to quarrel at all if you _ only let me speak.只要你让我说话,我们根本就不会吵架.3.-Sir,_ he go or stay?-Let him go.A.will B.shall C.might D.couldshallwillB

14、 4.The door _ open.这门经常打不开.5.Ronald _ stay in his small garden for a long time every day in the past.A.could B.might C.should D.would6.You _ have the book after I read it.我看完以后一定把这本书给你.wontD shall2.表示否定的情态动词的用法:部分情态动词的否定式是情态动词中的考点之一。mustnt 不准,禁止neednt 没必要(=dont have to)cant 不能;不可能may not 不可以;可能不shou

15、ldnt 不应该(=ought not to)1.You _ return the book now.You can keep it till next week if you like.A.cant B.mustnt C.neednt D.may not2.Johnny,you _ play with the knife,you _ hurt yourself.A.wont;cant B.mustnt;may C.shouldnt;must D.cant;shouldntC B 3.-Will you stay for lunch?-Sorry,_.My brother is coming

16、to see me.A.I mustnt B.I cant C.I neednt D.I wont4.-May I pick a flower in the garden?-_.A.No,you neednt B.Not,please.C.No,you mustnt D.No,you wontB C 3.可兼做行为动词的情态动词：need、dare情态动词(+动词原形)行为动词.needdare1.无人称和数的变化;2.尤其用于：*否定句及疑问句中;*在if/whether之后;*或与hardly,never,no one,nobody连用;3.常以neednt 和darent的形式出现;4.

17、dare有其过去时dared.多用于肯定句;need to dodare to doneed to be done need doing 判断正误:How dare you say such a thing?How dare you to say such a thing?He darent to speak English before such a crowd,did he?He darent speak English before such a crowd,dare he?Nobody need to be afraid of catching the disease.Nobody n

18、eed be afraid of catching the disease.These dishes needed be cleaned carefully.These dishes need to be cleaned carefully.These dishes need cleaning carefully.Practice:1.Read the article on P29 and then complete itAnswers(1)must (2)has to (3)must (4)must (5)should (6)ought to(7)could (8)may (9)could2

19、.Read Part A on page 31,and then complete the passage.Answers(1)can (2)dare (3)can/could (4)may/might/could(5)mustnt/shouldnt/cant (6)mustnt/shouldnt/cant(7)can (8)neednt3.Read Part B on page 31,and then complete the passage.Answers(1)Shall (2)shall (3)will (4)will/shall(5)will (6)will/shall (7)shal

20、l/willplenty of,a lot of,lots of1.many,many a,a great/good many,a large/great number of/numbers of+Cn.2.much,a great deal of,a large amount of,large amounts of+Un.3.plenty of,a lot of,lots of,a large quantity of,large quantities of+Cn/Un.1.We have _ books in our school library.2.food are wasted by t

21、he students every day.3._there has lived a rich life since the village was developed as an attraction.a large number/plenty of/many/a good manyLarge quantities ofMany a peasantsuggest 1.propose,advise 提议，建议suggest sth.(to sb.)suggest(to sb.)that sb.(should)do sthsuggest doing sth.他建议我们早点出发He suggested our starting off earlier/that we should start off earlier.2.bring(an idea,possibility,etc)into the mind 提醒，暗示suggest sth,suggest that(陈述语气)他伤心的表情表明他又一次未能通过考试.His sad look suggested that he hadnt passed the text again.1.Revise the usage of modal verbs2.Get prepared for the next period