1、Discovering useful structuresDiscovering useful structures Modal Verbs(II)Enjoy a song,Nothings Gonna Change My Love For You by Westlife.If I had to live my life without you near meThe days would all be emptyThe nights would seem so longWith you I see forever oh so clearlyI might have been in love b
2、eforeBut it never felt this strongOur dreams are young And we both knowtheyll take us where we want to goHold me nowTouch me nowI dont want to live without youNothings gonna change my love for youYou ought to know by now how much I love youOne thing you can be sure ofIll never ask for more than your
3、 loveNothings gonna change my love for youYou ought to know by now how much I love youThe world may change my whole life throughBut nothings gonna change my love for youIf the road ahead is not so easy,Our love will lead the way for usJust like a guiding starIll be there for you if you should need m
4、eYou dont have to change a thingI love you just the way you areSo come with me and share the viewIll help you see forever tooHold me nowTouch me nowI dont want to live without youNothings gonna change my love for youYou ought to know by now how much I love youOne thing you can be sure ofIll never as
5、k for more than your loveNothings gonna change my love for youYou ought to know by now how much I love youThe world may change my whole life throughBut nothings gonna change my love for youNothings gonna change my love for youYou ought to know by now how much I love youOne thing you can be sure ofIl
6、l never ask for more than your loveNothings gonna change my love for youYou ought to know by now how much I love youThe world may change my whole life throughBut nothings gonna change my love for youRead the text again and pay attention to the sentences containing modal verbsand explain the meaning
7、of each modal verb.1.Then usually by lunchtime they would all be sold.2.What could have happened?3.Nothing could be better 4.Something terrible must have happened if 5.He could not believe his eyes.6.Perhaps he should go to the library and find out.PossibilityPossibilityPossibilityGuessingAbilityDut
8、y7.He could not have Yong Hui getting away with telling people lies!7.He had better do some research!8.Even though her customers might get thin after eating Yong Huis food 9.They would become tired very quickly.10.he could win his customers back.IntentionDutyPossibilityIntentionAbilityought to意思是“应该
9、”，是情态动词，只有一种形式，后边接动词不定式，to不能省略。ought to没有人称和数的变化，后接动词原形可以表示现在、将来或过去将来，由时间状语或上下文决定。They ought to come tomorrow.He thought that they ought to take part in the design.ought toought的否定形式由直接加not构成，疑问式将ought提到句首构成。He ought not to do it.=He oughtnt to do it.Ought we to do it at once?在反意疑问句里，下面两种形式都可以：He ou
10、ght to be here,shouldnt he?He ought to be here,oughtnt he?三者均表示建议，意为“应该”，“应当”或“最好做”，三者的语气程度为渐强。had better指一般性的建议，最弱。should&ought to含义相近，区别在于ought to语气重，偏重责任、义务、道德、法律等方面。had better,should&ought toYou ought to help him because he is in trouble now.(语气强，有命令意味)You should have a rest after finishing your
11、 sports.(一般性建议)ought to/should have done 表本应该做而实际未做 You ought to have told him about the news.He shouldnt have been told about the news.You should have got up early.have to 强调客观需要，有人称、时态的变化而must则表示主观愿望、主观看法，只能用于一般现在时和一般将来时。Would you like to come to my house on National Day?Thank you,Id love to.But I
12、 have to see my uncle on that day.We must finish the work before lunch.have to&mustMust they do?Yes,they must.No,they neednt/dont have to.must have to主观客观主观客观时态现在，将来多种表推测询问意愿否定意义禁止，不允许不必need和dare既可用作情态动词，也可用作实义动词。用作情态动词时，主要用于否定句和疑问句。用作实义动词时，可用于各种句式。1.用作情态动词You neednt telephone him now.I dont think y
13、ou need worry.She dare not go out alone at night.How dare you say Im unfair?dare&need2.用作实义动词You dont need to do it yourself.We need to tell them the news.We should dare to give our own opinion.He did not dare(to)look up.I dare say hell come again.（I dare say为固定习语）注意对need问句的回答:Need I finish the work
14、 today?Yes,_.No,_.No,_.you mustyou needntyou dont have toneednt 对其它情态动词的回答:Shall I tell John about it?No,you _.No,you _.Must we do it now?No,you _.No,you _.needntdont have toneedntdont have to【2015天津】7.I _ have worried before I came to the new school,for my classmates here are very friendly to me.A.
15、mightnt B.mustnt C.neednt D.couldnt【解析】句意：我来新学校之前本没有必要担心，因为在这里的同学对我非常友好。neednt have done本没有必要做某事，表示实际上已经做了某事。根据句意可知选C。C高考真题【2015北京】29Cant you stay a little longer?Its getting late.I really _ go now,My daughter is home alone.A.may B.can C.must D.dare【解析】句意：你不能再多待会儿吗?很晚了，我必须得走了。我女儿一个人在家。A.may可能，可以，也许；
16、B.can能，会；C.must必须，必然要，必定会；D.dare敢，胆敢。结合句意，故选C。C（2014江苏卷）31.It was sad to me that they,so poor themselves,_ bring me food.A.might B.would C.should D.could【解析】句意：让我难过的是，如此贫穷的他们竟然给我带来了食物。might也许；would会，过去常常做某事；should应该，竟然；could能够；根据句意可知本句中的should表示“竟然”。故C正确。C（2014重庆卷）3.Ive ordered some pizza,so we _ wo
17、rry about cooking when we get home tired.A.cant B.dare not C.neednt D.may mot【解析】句意：我已经点了一些披萨，所以当我们很累地到家的使用，不必担心做饭的问题。cant不可能；做不到；dare not不敢；neednt 不必；may not也许不；根据句意说明C正确。C (2013陕西)My mom suggests that we _ eat out for a change this weekend.A.should B.might C.could D.would (2013四川)Why are your eyes
18、 so red?You _ have slept well last night.A.cant B.mustnt C.neednt D.wontAA I _ use a clock to wake me up because at six oclock each morning the train comes by my house.（2012全国高考I）A.couldnt B.mustnt C.shouldnt D.neednt The new law states that people _ drive after drinking alcohol.（2012上海高考）A.wouldnt
19、B.neednt C.wont D.mustntDD Its quite warm here;we _ turn the heating on yet.（2012天津高考）A.couldnt B.mustnt C.neednt D.wouldnt We _ have bought so much food now that Suzie wont be with us for dinner.（2012江西高考）A.may not B.neednt C.cant D.mustntCB1.You _ your tooth pulled out before it rot completely.A.h
20、ad better gotB.had to get better C.had better to getD.had better get2.When we got to the cinema,the film hasnt started yet,so we _.A.neednt hurryB.didnt need hurry C.neednt to hurry D.neednt have hurried3.It was really very dangerous;you _ him seriously.A.might have injuredB.could injure C.should ha
21、ve injuredD.must injureDDAPractice4.As he had heart attack,he was told that he _ continue the work.A.neednt B.may not C.mustntD.cant5.We ought to help each other in our work,_?A.oughtnt weB.should we C.shouldnt weD.ought to we6.Two eyes _ see more than one.A.canB.mayC.willD.should7.When I got to the
22、 cinema,the film had already started;I _ there earlier.A.ought to getB.ought to have got C.must have gotD.must getBAAC8.I thought you _ like something to read,so I have brought you some books.A.may B.might C.would D.must 9.Where is my pen?I _ it.A.might lose B.would have lost C.should have lost D.mu
23、st have lost 10.I didnt hear the phone.I _ asleep A.must be B.must have been C.should be D.should have beenBDB11.There 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 12.Its nearly seven
24、 oclock.Jack _ be here at any moment.A.must B.need C.should D.couldDC13.Did the train arrive in time?No.It _ two hours ago.A.must have arrived B.ought to have arrived C.must arrive D.ought to arrive14.Must I drive to his house and pick up the children?No,.A.you shouldntB.you might not C.you neednt D
25、.you mustntBC15.We didnt see Tom at the meeting yesterday.He it.A.mustnt have attended B.cannot have attendedC.neednt have attended D.would have not attendedB16.There is someone knocking at the door._ it be Tom?A.Can B.Must C.Should D.Ought toA17.You _ take me to the station,and my brother is taking
26、 me.A.dont have to B.mustnt C.cant D.shouldnt18.Must I hand in the homework now?_.You can hand it in tomorrow morning.A.Yes,you must B.No,you neednt C.Yes,you need D.No,you mustntAB19.Mum,I climbed to the top of the shelf and got the Teddy Bear.My goodness!You may have hurt yourself.You _ do that ag
27、ain.A.dont have to B.may not C.neednt D.mustnt 20.Everybody is working hard.There _ be trouble in finishing the work on time.A.ought not to B.neednt C.mustnt D.ought to notDAHomework1.Summarize the rules of the modal verbs in your own way.2.Finish the exercises in Discovering useful structures.3.Finish exercises in Using structure in Workbook.
