情态动词公开课课件.ppt

Unit 2 grammandusage、modal verbs、jack-iavegoodnewforyou！罗斯-what？jack-theeducationaldepartmenhaslcarriedoutrulestoreducestudenstoomuchstudyload . rose-really？Ifso，Id on thaveostayuplatedtoosomuchhomeworkandmymomayallowmetplaycomputergames . jackthebestthinithinkithat icanhavavesJack-Lipu，I should say . rose-tellmesomeethingabouthim . jack-well，maybeicanshowyousomehotos，i. weusemodalverbstotalAbility(能力)2。Obligation(义务)3。cerainty(可能性)4。Permission(允许)，2 .Wealsousemodalverbsto:5。Makerequests(请求)6。Makesuggestions(建议)7。make offices(提供支持)8。Giveadvice(发表意见)，1 .能力：liuyugcanrunthe 110 MH surdlerate within 13 seconds。can/could :1。can通常表示天生的能力或客观的可能性，也可能表示请求和允许。learning English _ _ _ _ _ _ be difficult。can、mancannocanotlivwithout air。_ _ _ _ _ _ _ _ _ iuseyourbike？Can、can/could:2。疑问句中可以用could表达请求，语气更委婉。-_ _ _ _-_ _ _ _ Ihavethetelevisionon？-yes，you _ _ _ _ _ _。/no、you _ _ _ _ _ _ _ _、could、heasksihe _ _ _ smoke here、could、can/may、can表示惊讶、怀疑、不信任的态度。(主要用于否定句、疑问句或惊叹句)，he ssuchanicepersonthathe _ _ _ _ _ _ committethecrime，cant，怎么这么粗心！Howcanyoubesocareless！Canthisbetrue？can/could :4。can never/cant.too说：“无论如何.但也不为过”，“越多”.更好”。你过马路的时候再小心也不过分。you can tbetocalrefulwhilectorossingtheroad，attention :区分can/beable to :edisonalwayswondredwhyhenscoulhatchIfnot，why？can表示天生的能力或一种客观的可能性，而beableto则更强调通过后天学习和努力获得的能力，或在任何客观的场所和背景下能做的事情。Attention:区分can/beable to :abig firebuild inabchotelyesterday . luckiy，everyone _ _ _ _ _ _ _ _ _ _ _she _ _ _ _ _ _ _ speak both English handfrench。can，I MSO tired！iavetoothetrainingforatlaseast 10 hours aday！2 .“Obligation(义务):yethemustworkhardttowinthegoldmal、althoughliuyingiftedinhurdlerate、attention :advise、neessty、Ought，3 .certity(可能性):attention :very uncertain，almost certain，might，shoud，must，may，couldhe _ _ _ _ _ beathome，2。he _ _ _ _ _ _ beathome，Forhejusticalledmefromhishome 15 seconds ago。a.mayb.mightc.must、a.mayb.mightc.must、(can)、must表示积极的猜测，不能用于否定句或疑问句。thissmustbeyourpen . hemmustbedoingshoomeworknow . hemmusthavearrivedalready .must，must，2 .固执(固定句子：ifyoumustdosth。如果一定要做什么的话)的意思，如果真的想去的话，请安静地离开。ifyoumustleave、doit quietly、attention :-they _ _ beoigtheexperiemeninthelab。-why？-becaethelights arestillburning，a.couldb.canc.mustd.would，4 .permission(允许):mayieakfcifiwinthegoldmal？may/might:1。表示许可证。表示请求或允许时，might比may的语气更委婉一些。-Might/MayIuseyourcomputer？-yes，you can。/no，you cant/mustn t .may/might :2。在命令型上表示祝愿。3.猜测，可能性(仅用于正面句子，疑问句使用can或could)。祝你成功！mayymousucceed、heimaybeveryusynow、mayoubehappyallyourlife、5。making requests(请求):canyouhelmewithout mytraining？id on tknowwtousethisequipment！willcancouldwould、informal、formal、6。making suggestions(建议):shallwedotheininginthemorning？it stoohottotakeexerciseintheafternoon，shall :1。shall用于第1，3人称疑问句中，说话者征求对方的意见，联系对方或提供帮助。1.Shallwebeginourlesson？2.whenshallhreallowedtoleavehospital？3.ShallIcarrythisbagforyou？shall:2.Shall用于第2，3人称，表示说话者对彼此发出命令、警告、承诺或威胁。youshallfailifyoudon twork harder。heshallbepunishedaccingtotherule。我读完这本书后，会给他的。heshallhaethebookwhenifinist。警告，威胁，承诺，7。Makingoffers(提供帮助):dont worry、dear、iwill wasnheightaway、mom、mydirttheshavebenpil dup！Id ont have time.will/would :1。表示请求、建议等，would比will更委婉、更礼貌。sentence pattern、would youplease.would youmind.would rather.would you like.will/would :2。表示意志、愿望、决心。iwilneverdohatagain。will/would :3。可以表达重复、习惯性、倾向等。翻译成“经常，经常，经常，总是”。1)。the oldman _ _ _ _ _ _ have smokeundabigtreeveryafternoonafterhefinishedhisfarmwark，would，2)。门就是打不开！thedoorwon topen。will/would :attention :iwill gottotheparkwithyoutomorroffuffermelunch，question : isthissentenceconch为什么？情态动词，“意志”，8。giving advice :you should not/oughtottoeasomehborerunning，howdelicious！should:1.Should表示建议、建议和命令，其同义词为oughtto；疑问句中通常should代替ought.使用to。ShouldIopenthewindow？我们必须互相学习。Weshouldlearnfromearchother，should :2。情态动词should可以在第一人称诗中表达说话者的谦虚、礼貌、委婉的语气。rose-sure by the way，whoisyouridol？杰克-谢伊，I shouldsay。ishouldapiseyounottoothatgain。3 .should经常说：“实际上。Ican tbelievesuchagentlemanshould besorudetotold。我不能相信这样的绅士居然对老人那么无礼。“should:4.should在进行推测时，一般是通过经验或逻辑判断，意思是翻译成“如预期，一定是”，should :- whencanicomeforthephotos？ineedthemtomorrowsternoon- they _ _ _ _ _ bereadyy 12:0 . a . canb . shoul DC . mightd . need，tobe continued情态动词havedone(哈弗done)的用法；(1)musthavedone对过去的确切推测；(2)may/might havedone对过去某件事的可能性；(3)can t/coul dn the、practice、withssomekowsonhand、you _ _ _ _ toseethegamelstnight . a . mustn tgob。couldhaveegonec。should n tgod。shouldt have gone，2 .therewaspntyoftime . she _ _ _ _ a . mustn thavehurriedb . coul dn thavehurriedc . mustnothurryd . needn t have huve-isawmaryinthelbraryyesterday。-you _ _ _ _ _ _ _ her。sheisstillabroad.a. mustn tseeb。can thaves eenc . mustn thaves eend . coul dn tsee，4 .aunt Mary _ _ _ _ thetrain，otherwise shewould haverivedherebynow . a . musthavemissedb . should hadmessedc . hadhmissedd . missedd可兼作行动动词的情态动词：need(内德)、dare(代尔)、modal(模态动词)、action(行动动词)、need(内德)、dare(代尔)，1。没有人，数字也不变；2 .特别使用：*否定句和疑问句；* if/whether之后；与、*或hardly、never、noone和nobody连接：3 .经常以neednt和darent的形式出现；4.dare有过去的dared，主要用于肯定句。(sb) needtoodaretodo (sth .)needtobedrone (sth .)needdoing，he daren tspeakenglish beforesucrowd，dare he？he daren ttospe