情态动词(南宁14中何秀媛）(教育精品).ppt

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1、 Modal Verbs 南宁十四中南宁十四中 何秀媛何秀媛 情态动词情态动词Can/could,may/might,must,have to(has to)/had to,shall/should,will/would,need,dare/dared,ought to 常见的情态动词常见的情态动词v一、情态动词的一般用法一、情态动词的一般用法v二、情态动词表示推测二、情态动词表示推测v(三、情态动词用于虚拟语气中三、情态动词用于虚拟语气中)v一、情态动词的一般用法一、情态动词的一般用法1)_ I take this seat?2)When he was seven,he _ swim.3)I

2、n a few months,we will _ go to university.Can/Could/Maycould/was able tobe able to1.1)_ I come in?Yes,you _.No,you _.2.may/mightMay/Can/CouldMay/canmustnt/had better not/maynt2)-My bike is broken._ I borrow yours?-Yes,of course.Here it is.A.Can B.Must C.Need D.ShouldA1)Must I hand in the papers now?

3、Yes,you must.No,you _2)You_(禁禁止止，绝绝不不允允许许)take the magazines out of the reading room.3)Tom doesnt_ water the flowers every day.3.neednt/dont have tomustnthave to1)Ought he to support his parents?Yes,he ought(to).No,he oughtnt(to).2)“You are late again.You _(be)here five minutes ago.”said the teacher

4、.3)Jack_(finish)his homework yesterday but he didnt.4.Should/ought to be(1)should/ought to do sth.(2)should/ought to have done sth.Should/ought to have finished1)Need he pay for the meal?Yes,he _.No,he _2)_ She _hiking alone in the mountain last summer?No,she dared not.Its dangerous.3)She_hiking alo

5、ne in the mountain.4.Its so near.We_ a taxi.5.neednt have donemustneednt/doesnt have toDared godidnt dare(to)goneednt have taken1)Fish_ out of water.2)When I was young,I _ in winter.3)_you please turn off the electric fans?6.Will/wouldwill die would go swimming 1)Where shall we wait for you?2)Shall

6、Miss.Lee make some coffee for you?3)You want justice.You shall get it,more than you wanted.4)Tell him he shall return me the money or7.Shall(作为情态动词用时）作为情态动词用时）:（1）在疑问句中，用于第一、三人称，表示在疑问句中，用于第一、三人称，表示征求对方意见或请求指示。征求对方意见或请求指示。（2）在肯定句或否定句中，用于第二、三人在肯定句或否定句中，用于第二、三人称，表示命令、威胁、警告、强制、允称，表示命令、威胁、警告、强制、允诺等意思。诺等意

7、思。特特 殊殊 的的 情情 态态 动动 词词v1.had better(not)do sth.v2.would/had rather(not)do sth.v3.would/should like/love to do sth.feel like doing sth.v4.used to do sth.(He used to be a thief,but he isnt now.)(1)be/get used to doing sth.(2)be used to do sth.1)Doctor King is/gets used to walking after supper.2)Water

8、is used to produce electricity.v1.对现在情况的推测对现在情况的推测一、情态动词表示推测（一、情态动词表示推测（三个公式三个公式）may/might/could+do sth.must+do sth.(情态动词表示推测情态动词表示推测)v2.对过去情况的推测对过去情况的推测 must+have done sth.may/might/could+have done sth.(情态动词表示推测情态动词表示推测)v3.对正在发生的情况的推测对正在发生的情况的推测 must+be doing sthmay/might/could+be doing sth.1.用在用在2

9、.肯定肯定句中句中二、情态动词表示推测（二、情态动词表示推测（三个原则三个原则）一定是、准是一定是、准是可能是可能是2.用在用在否定句否定句中中不可能不可能可能不可能不3.用在疑问句中用在疑问句中Can/could?（）v1）He looks pale.He _be ill.Im sure.v2)He didnt come to school yesterday.Perhaps he_ (go）to the net bar.可能吗可能吗?mustmay/might/could have gonePractice your skill(高考链接）高考链接）_1.What do you mean,

10、there are only ten tickets?There _ be twelve.A.should B.would C.will D.shall _ 2.-Would you like to join me for a quick lunch before class?-_,but I promised Nancy to go out with her.A.Id like to B.I like it C.I dont D.I willAA_3.Helen _ go on the trip with us,but she isnt quite sure yet.A.shall B.mu

11、st C.may D.can_ 4.-Ive taken someone elses green sweater by mistake.-It _ Harrys.He always wears green.A.could be B.will be C.mustnt be D.has to beCA_5.-Isnt that Anns husband over there?-No,it _ be him.Im sure he doesnt wear glasses.A.cant B.must not C.wont D.may not_6.Tom,you _leave all your cloth

12、es on the floor like this!A.wouldnt B.mustnt C.neednt D.may notAB_7.There is no light on-they _be at home.A.cant B.mustnt C.neednt D.shouldnt_8 As you worked late yesterday,you _have come this morning.A.maynt B.cant C.mustnt D.needntAD_ 9.-How is your tour around the North Lake?Is it beautiful?-It _be,but it is now heavily polluted A.will B.would C.should D.must_10.It _ have been Tom that parked the car here,as he is the only one with a car.A.should B.can C.may D.mustCDGoodbyeThank you