小学英语语法知识(疑问句)一般疑问句Is………………?Are………………?Was………………?Were……………?Do…………?Did…………?Does…………?Can…………?一般疑问句的回答只能用Yes或No.be动词情态动词助动词一般疑问句:表示疑问,一般回答只有两种可能Yes,……或No,……句中没有疑问词。如何将一个肯定的陈述句改为否定句:1、看句中有无be动词,如有,把be动词提到句首即可。be动词(is、are、was、were)如:Heisateacher.---Isheateacher?2、看句中有无情态动词,如有,把情态动词提到句首即可。情态动词(can)3、如上述二者都没有,就应把助动提到句首。助动词(do、did、does)分四个步骤:(1)肯定陈述句中本来是没有助动词的,要加上去,位置在主语(某人或某物)后,动词前。(2)确定助动词用do、does还是did,根据句中动词,动词是原形的助动词就用do,动词是第三人称单数的助动词就用does,动词用过去式的助动词就有did。(3)把助动词后提到句首。(4)原句中动词假如发生变化就要恢复成原形。强调一点,有some的要考虑是否要用any。e.gThisisAmy'sbike.(一般疑问句)IsthisAmy'sbike?Yes,itis.(肯定回答)No,itisn't.(否定回答)DidyougotoBeijinglastweekend?Yes,Idid.(肯定回答)No,Ididn't.(否定回答)Ihavesomebooks.(一般疑问句)Doyouhaveanybooks?变否定句的做法:1、如句子里是be动词:am,is,are,was,were就在这些词后加not例:HeisTom.HeisnotTom.2、如句子里是动词就在这些词前加don't,doesn't,didn't(1)主语是第一、二人称(复数)加don’t,第三人称单数加doesn't(2)如果是过去式就加didn't例:Ilikedogs.Shelikesswimming.Idon‘tlikedogs.Shedoesn’tlikeswimming.3、如句子里是情态动词是must,can,may,should就在这些词后加not例句:YoucanwatchTVnow.YoucannotwatchTVnow.变一般疑问句的做法:1、如果句子里是be动词:把am,is,are,was,were这些词提到句子开头。例:HeisTom.(变一般疑问句)IsheTom?2、二人称(复数)加Do,第三人称单数加Does如果句子里是动词就在这些词前加Do,Does,Did(1)主语是第一、(2)如果是过去式就加Did例:Ilikedogs.Shelikesswimming.Doyoulikedogs?Doesshelikeswimming?Ilikedthemeat.Didyoulikemeat?3、如句子里是情态动词是must,can,may,should就在这些词后加not例句:YoucanwatchTVnow.YoucannotwatchTVnow.特殊疑问句表示疑问,有疑问词(在开头),回答有很多种可能。常用疑问词:Who谁(问人)What什么(问物)When什么时间(问时间)Where在哪里(问地点)How怎样(问方式、情况等)Why为什么(问原因)问与答,连连看。1.Whoisthisman?A.Iwenttothebookstore.2.Wheredidyougoyesterday?B.Iam45kg.3.Howheavyareyou?C.Myfather.4.Whatdidyoudolastnight?D.Itwasfine.5.Howwasyourweekend?E.IwatchedTV.Mike:_____arewegoingtothisyear?Mum:wewillgotoHarbin.Mike:______arewegoingtoHarbin?Mum:On10thOctomber(在十月十日).Mike:______doyougothere?Mum:Byplane.Mike:_____arewegoingtostayinHarbin?Mum:InGrandma’sbighouse.Mike:_____doesGrandmalikeeating?Mum:Shelikeseggsverymuch.Mike:______seasonisthebesttimetoHarbin?Mum:Winter.Mike:_____?Mum:Becausewecanmakeasnowmanthere.WhereWhyWhatWhereWhenWhichHowExercises:针对下列划线部分提问1.WearegoingtoHainan.Whereareyougoing?2.AmygoestoShanghaiinFebruary.WhendoesAmygotoShanghai?3.Kittyiswearingaspecialcostume.Whoiswearingaspecialcostume?4.Igotoschoolbybike.Howdoyougotoschool?5.Ilikesummerbest.Whichseasondoyoulikebest?6.MynameisJohn.Whatisyourname?Choose:选择1.A:_______didyougolastSunday?B:Iwenttothelibrary.AWhenBWhereCWhatDWho2.Amy:_______boughtthenewbikeforyou?Mike:Myfather.AHowBWhereCWhatDWho3.A:Wasthisbookinthedesk?B:_______AYes,itis.BNo,itwasCYes,itwasn’tDNo,itwasn’t4.A:_______heavyisJohn?B:Heis42kg.AHowBWhatCWhoDWhereDADBHomework:作业(划线部分提问)1.MikewenttoChongqingyesterday.2.MyfatherwenttoShanghailastnight.3.Johnisplayingfootballinthegrass.4.IgotoXingjiangbyplane.5.Amylikessummerverymuch.ThankYou!