陈述句改否定句•陈述句变否定句的规则如下:•(1)句中有be动词的,直接在be动词后面加not.•Sheismysister.•Sheisnotmysister.•(2)句中有情态动词的,直接在情态动词后面加not•Youmaycomeheretomorrow.•Youmaynotcomeheretomorrow.•(3)句中谓语动词是实意动词,没有be动词amisare,也没有情态动词canmaymust的,在实意动词前面加don’t或doesn’t,,当主语是第三人称单数时,加doesn’t.相应的实意动词变为原型。•ShestudiesEnglishatschool.•ShedoesnotstudyEnglishatschool.陈述句改疑问句•陈述句变疑问句的规则如下:•(1)句中有be动词的,把be动词提到句首。•Heisawriter.•Isheawriter?•(2)句中有情态动词的,把情态动词提到句首。•(must,may,can,could,need,…)•Icancleanthewindow.•Canyoucleanthewindow?•(3)句中谓语动词是实意动词,没有be动词amisare,也没有情态动词canmaymust的,在句首前面加do或does,当主语是第三人称单数时,加does.相应的实意动词变为原型•Helikescows.•Doeshelikecows?肯定回答和否定回答•Areyouboys?•Yes,weare(No,wearen't)•Issheanurse?•Yes,sheis.(No,sheisn't)•Doeshelikecows?•Yes,hedoes.(No,hedoesn't)•Dowedanceafterschool?•Yes,wedo.(No,wedon't)•Heismybrother.•Heisnotmybrother.•=Heisn’tmybrother.•Ishemybrother?•Yes,heis.•No,heisnot.•=No,heisn’t•Shecanswim.•Shecannot(can’t)swim.•Cansheswim?•Yes,shecan.•No,shecannot(can’t).•Annlikesrunning.•Anndoesn’tlikerunning.•DoesAnnlikerunning?•Yes,shedoes.•No,shedoesn’t.特殊疑问句•特殊疑问词+一般疑问句•eg:Be+主语+动词-ing+其他?•eg:Do/does+主语+动词原形+其他?•what,who(whom),whose,which,when,where,how,why•不用yes或no来回答•1)what对指物名词或谓语动词提出疑问•Thetwinsaremakingakite•Whatarethetwinsdo?•MrsTurneraskshersontobuysomeeggs.•WhatdoesMrsTurneraskhersontobuy?•2)对名词前定语提出疑问,疑问词应用which,而且必须和名词连用。•I‘mgoingtotaketheshirtontheright.•Whichshirtareyougoingtotake?•3)对指人名词或代词提问用who。•LiPingismysister.•WhoisLiPing?•4)对物主代词和名词所有格提问用whose,作宾语时提问用whom•LiPing'scoat•Whosecoat•myfather•Whosefather•5)对具体时间提出疑问,疑问词用when;•对具体几点钟提问,疑问词用whattime。•It’s10:00•Whattimeisit?•Igohomeatnight.•Whendoyougohome?•6)对具体地点提出疑问,疑问词应用where。•Theboysarehavingapicnicinthepark.•Wherearetheboyshavingapicnic?•7)对表原因的从句提问,常见的有because引导的从句,疑问词应用why。•Jomdidn‘tgotothefarmwithusbecausehewasill.•WhydidJomgotothefarmwithus?•8)对方式或程度等提出疑问,用疑问词How。•Helikesapplesverymuch.•Howdoeshelikeapples?•9)对数量提出疑问,疑问词为Howmany,要注意howmany必须跟名词的复数形式。•Therearetwosheep.•Howmanysheeparethere?•10)对价格提出疑问,疑问词用Howmuch。•Ipayfiftyyuanforthesweater.•Howmuchdoyoupayforthesweater?•11)对时间长度提出疑问,疑问词应用Howlong。•Iworkinthatfactoryfortwoyears.•Howlongdoyouworkinthatfactory?•12)对时间频率,如onceayear,twiceaweek等提问,疑问词用Howoften。•Iswimonceayear.•Howoftendoyouswim?•13)对具体次数,once,twice,threetimes等提问,疑问词用Howmanytimes。•Bdidhecallyouthedaybeforeyesterday?•Twice.•A.WhattimeB.Howmanytimes•C.HowmuchD.Howlong•14)对in+一段时间提问,疑问词一般用Howsoon。•Theyfinishtheworkintwohours.•Howsoondotheyfinishthework?•15)对距离提出疑问,疑问词用Howfar。•It'sabouttwokilometresfromhere.•Howfarisitfromhere?•16)另外,对日期、星期、天气等提出疑问,则分别用•What'sthedate?•Whatdayisit?•What'stheweatherlike?•如果是过去时间,就用was代替is。