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1、刘丽华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.She is my sister.She is not my sister.（2）句中有情态动词的，直接在情态动词后面加notYou may come here tomorrow.You may not come here tomorrow.（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dont或doesnt,，当主语是第三人称单数时，加doesnt.相应的实意动词变为原型。She studies English at school
2、.She does not study English at school.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。He is a writer.Is hea writer?（2）句中有情态动词的，把情态动词提到句首。（must,may,can,could,need,)I can clean the window.Can you clean the window?（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He l
3、ikes cows.Does he like cows?肯定回答和否定回答Are you boys?Yes,we are(No,we arent)Is she a nurse?Yes,she is.(No,she isnt)Does he like cows?Yes,he does.(No,he doesnt)Do we dance after school?Yes,we do.(No,we dont)Heismybrother.Heisnotmybrother.=Heisntmybrother.Ishemybrother?Yes,heis.No,heisnot.=No,heisntSheca
4、nswim.Shecannot(cant)swim.Cansheswim?Yes,shecan.No,shecannot(cant).Annlikesrunning.Anndoesntlikerunning.DoesAnnlikerunning?Yes,shedoes.No,shedoesnt.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 Thetwinsaremakingak
5、ite What are thetwinsdo?MrsTurneraskshersontobuysomeeggs.What does MrsTurneraskherson tobuy?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。Imgoingtotaketheshirtontheright.Which shirtareyougoingtotake?3)对指人名词或代词提问用who。LiPingis my sister.Who is LiPing?4)对物主代词和名词所有格提问用whose，作宾语时提问用whom LiPingscoatWhosecoatmyfatherW
6、hosefather 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。Its 10:00 What time is it?I go home at night.When doyou go home?6)对具体地点提出疑问，疑问词应用where。Theboysarehavingapicnicin the park.Where aretheboyshavingapicnic?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。Jomdidntgotothefarmwithusbecausehewasill.Why didJomgotot
7、hefarmwithus?8)对方式或程度等提出疑问，用疑问词How。He likes applesverymuch.How does he like apples?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。There are twosheep.Howmanysheepare there?10)对价格提出疑问，疑问词用Howmuch。Ipay fiftyyuanforthesweater.How muchdoyoupayforthesweater?11)对时间长度提出疑问，疑问词应用Howlong。Iworkinthatfactoryfortwoye
8、ars.How long do youworkinthatfactory?12)对时间频率，如onceayear,twiceaweek等提问，疑问词用Howoften。I swim onceayear.How often do you swim?13)对具体次数,once,twice,threetimes等提问，疑问词用Howmanytimes。B didhecallyouthedaybeforeyesterday?Twice.A.WhattimeB.HowmanytimesC.HowmuchD.Howlong 14)对in一段时间提问，疑问词一般用Howsoon。They finishtheworkintwohours.How soon dotheyfinishthework?15)对距离提出疑问，疑问词用Howfar。Itsabouttwokilometresfromhere.How far is it fromhere?16)另外，对日期、星期、天气等提出疑问，则分别用 Whatsthedate?Whatdayisit?Whatstheweatherlike?如果是过去时间，就用was代替is。