Unit3Grammar---Questiontags(反意疑问句)Teachingaims:1.Tolearnmastertheformsofquestiontags;2.Topractisewhatthey’velearnedinexerciseTeachingimportanceanddifficulties:Somespecialformsofthequestiontags.Teachingprocedures:Step1:Explanations.1.Definition:Questiontagsareshortquestionsthatcomeattheendofstatements,whicharecommonlyusedinspokenEnglishtostartaconversation.(反意疑问句又叫附加疑问句，是指当提问的人对前面所叙述的事实不敢肯定，而需要向对方加以证实时所提出的问句。)2.Function:Askingforagreementorconfirmation.3.Differentwaystoformquestiontags:(1)用yes,no来回答，一般原则是：前肯定，后否定；或前否定，后肯定。e.g.---Shestudieshard,doesn’tshe?---Yes,shedoes./No,shedoesn’t.---Shestudiedhard,didn’tshe?---Yes,shedid./No,shedidn’t.---Hecan’tswim,canhe?---Yes（不）,hecan./No（是的）,hecan’t.(2)带有be动词、助动词、情态动词时，则重复其陈述句中相应的be动词、助动词、情态动词；实义动词的一般现在时用do,does,一般过去时用did.e.g.Maryfailedherexams,didn’tshe?Hewouldratherdoit,wouldn’the?Thatclockisn’tslow,isit?HeusedtoliveinLondon,usedn’t/didn’the?Hehadbetternotstayup,hadn’t/shouldn’tyou(3)当陈述部分的主语是everybody,everyone,someone,noone,nobody,somebody,anybody,anyone等不定代词时，疑问句中用they或he.如果陈述部分的主语是everything,anything,something,nothing等指物的合成词时，附加问句的主语只能是it。e.g.Everyonereceivedapresent,didn’tthey/he?Nooneknowshisjob,doeshe?Nooneknowstheirjobs,dothey?Everythingisready,isn’tit?(4)当陈述部分是therebe句型时，附加问句部分的主语也用there.One作主语时用he/you/one都可，Iam结构用aren’tI.e.g.Thereissomethingwrong,isn’tthere?Iamstrong,aren’tI?Onecan’tworkallthetime,canone/you/he?(5)陈述部分带有no,seldom,hardly,scarcely,never,rarely,few,little,nowhere,nothing,onlyafew/little等表示否定或半否定的词时，附加问句的动词用肯定式。但是带有un-,im-,dis-等否定前缀或有-less后缀，带有notafew/little,nolittle/few时，疑问动词用否定式。用心爱心专心e.g.Bobrarelygotdrunk,didhe?Fewpeopleknowhim,dothey?Sheseldomgoestothecinema,doesshe?Heisunfitforhisoffice,isn’the?Hehasnotalittlefood,hasn’the?Marywasunsuccessful,wasn’tshe?(6)表愿望wish时，如主语是I或we，则疑问用may的肯定式；其他人称用对应助动词。以so,oh开头的句子带有讥讽、威胁、轻蔑时，结构为前肯定后肯定或前否定后否定。e.g.Iwishtogothere,mayI?Theywishtogothere,don’tthey?Sohedoesn’tlikehisjob,doesn’the?Oh,youhavehadanotheraccident,haveyou?(7)must作“必须、有必要”讲时，用needn’t;表示推测:1).加动词原形，用一般现在时；2)加havedone时，如有过去时间状语，用一般过去时；其他用现在完成时。Mustn’t作“不准，禁止”讲时用must,may.e.g.e.g.It’stoolate.Youmustgohomenow,needn’tyou?Theymustbethere,aren’tthey?Theymusthavecomehereyesterday,didn’tthey?Theymusthavecomehere,haven’tthey?Hecan’tworkherenow,doeshe?Hecan’thavedonehisworklastnight,didhe?Hecan’thavedonehiswork,hashe?(8)dare,need:1)作情态动词分别用dare,need;2)作实义动词用do,does.e.g.Hedarenottryitagain,darehe?Hedarestotryitagain,doesn’the?Youneedn’tworksohard,needyou?Youdon’tneedtoworksohard,doyou?(9)oughtto附加问句既可用ought（BE）也可用should(AE).e.g.Thechildoughttobepunished,oughtn’the?Weoughttogothere,shouldn’twe?(10)have表示“拥有”时用have或do，不表“拥有”时用do;haveto常用do也可用have.e.g.Hehasacomputer,hasn’t/doesn’the?Hehadagoodtime,didn’the?Hehastogetupearly,doesn’t/hasn’the?Hedoesn’thavetogetupearly,doeshe?Hehasn’ttogetearly,hashe?Hehas...
