必修三Unit1-语法Festivals-aro课件

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,*,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,*,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,*,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,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,*,*,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,*,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,*,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,*,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,*,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,*,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,*,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,*,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,*,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,*,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,*,*,Grammar,Modal verbs,情态动词,Unit1 Festivals around the world,主要情态动词,Can,could,May,might,Must/have to,Need,Dare,Will/would,Shall/should/ought to,What modal verbs have you learned?,情态动词的语法特征,1,）情态动词本身具有一定的意义,2,）不能单独做谓语，不能独立使用。通常情况下，后面接动词原形，一起构成谓语,3）情态动词没有人称，数的变化,4）情态动词表示说话人的语气或情绪,1)Some of us can use the computer now,but we couldnt last year.,2)The new-built theatre can seat 1500 people.,3)Can she be in the computer center?,4)I think what he said can not be true.,5)Can/Could I use your dictionary?,6)Could you lend me a hand?,1.,表能力,3.,表示“请求”“允许”,(,表请求时，口语中常用,could,代替,can,使语气更委婉，回答时用,can),2.,表示推测，意为“可能”“或许”，用于疑问句或否定句,1.can,与,could,4,4.,表示“许可”，可与,may,换用。,You can go home now.,5.can,用于疑问句或否定句中时，表惊异、,不相信等，意思是“可能、能够”。,How can you say that you really understand the whole,story if you have covered only part of the article?,6.cant/couldnt+have+done,表示对过去,情况的否定推测,Susan cant have written a report like this.,could+have+done 表示对过去能做而,未做的事情感到惋惜，遗憾;常译为本可以,Its a pity.Your class could have got the first prize.,5,Michael _ be a policeman,for hes much too short.,A.neednt B.cant C.should D.may,2.Mr.Bush is on time for everything.How _ it be,that he was late for the opening ceremony?,A.can B.should C.may D.must,3.-I stayed at a hotel while in New York.,-Oh,did you?You _ with Barbara.,A.could have stayed B.could stay,C.would stay D.must have stayed,My sister met him at the Grand Theater yesterday,afternoon,so he _ your lecture.,A.couldnt have attended B.neednt have attended,C.mustnt have attended D.shouldnt have attended,B,A,A,A,6,2.may,与,might,1.表示“许可”或“请求”，有“可以”的意思，口语中,常用 might 代 may,表示委婉语气。,否定回答时用,“,must not/can not”表“禁止，阻止”，,不用,“,may not,”,.,Eg:-May I watch TV after supper?,-Yes,you may./No,you mustnt.,2.,表示可能性。意为“或许，可能”,might,比,may,可能性小。,Eg:1)It might be true.,2)They may,not,be in the library now.,7,大家应该也有点累了，稍作休息,大家有疑问的，可以询问和交流,8,3.May you+动词原形 表“希望、祝愿、祈求”,“祝你”,Eg:May you succe,e,d,.,1,.Peter _ come with us tonight,but he isnt very sure yet.,A.must B.may,C.can D.will,2,.Some people who dont like to talk much are not necessarily shy,；,they,just be quiet people.,A.must B.may,C.should D.would,9,3.will,与,would,1.,表“请求、建议”等，用,would,比用,will,委婉，客气些,Eg:1)Will you lend me your book?,2)Would you like a cup of tea?,2.,用于表示意志或意愿。,will,指现在，,而,would,指 过去。,Eg:1)Ill never do that again.,2)They said that they would help us.,3),No matter what I said,he wont listen to me.,10,3.,表示习惯性动作。译作“总是、惯于”,will,指现在，,would,指过去。,Eg:1)He will often read all night.,2)Fish will die without water.,3)Every evening,she would sit by window,deep in thought.,4.,表示功能，译作“能、行”,Eg:1)That will be all right.,2)This door wont open.,11,1.The way the guests _ in the hotel influenced their evaluation of the service,treated B.were treated,C.would treat D.would be treated,What a pity.Considering his ability and experience,he _ better.,A.need have done B.must have done,C.can have done D.might have done,Liza _ well not want to go on the trip-she hates traveling.,A.will B.can C.must D.may,Although this _ sound like a simple task,great care is needed.,A.must B.may C.shall D.should,D,D,B,D,12,4.Should,ought to,语气更强,否定为,ought not to,Everybody ought to do at least two things.,1.,用于表劝告、建议。意为”应该、应当”。,Eg:You should keep your promise.,2.,用于表推测。意为“可能、该,”,Eg:1)Its 7 oclock,he should be at home.,2)They should have arrived by now.,3.,用于第一人称，表示说话人的谦逊、客气的语气,I should advise you not to do that.,13,1.I dont care what people think.,Well,you _,A.could B.would C.should D.might,2.What do you mean,there are only ten tickets?There_,be twelve.,A.should B.would,C.will D.shall,C,A,14,5.must,have to,must 必须：主动 have to不得不：被动接受,1.表示义务、意图或建议：必须，应该,I must leave at six today.,我今天必须六点钟离开。,2.表示推测：必定，一定,The light is still on,so he must be at home.灯还是亮的，他一定在家,3.表示主张：硬要，一定要,If you must go,at least wait till the rain stops.,如果你坚持要走，至少也要等雨停了再走,15,6.need“,需要”,dare“,敢”,肯定句：,need/dare to do(,实意动词,),否定句：,neednt/darent do(,情态动词,),16,7.shall,1),在一、三人称的疑问句中,shall,用来,询问对方的意愿。如：,Shall we begin our lesson?,When shall he be able to leave the,hospital?,2),用于二、三人称的陈述句中,表说话人,命令、警告、允诺等口吻。如,：,He shall have the book when I finish,reading.,You shall do as I say.,17,情态动词,+have+done,一、“,must+have+done”,表示对过去事情的肯定推测，译成“一定做过某事”，该结构只用于肯定句。,1.It must have rained last night,for the ground is wet.,2.You must have been mad to speak to the servant.,二、“,cant/couldnt+have+done”,表示对过去事情的否定推测，译成“不可能做过