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1、句型转换和特殊疑问句的语法肯定句、否定句、一般疑问句的相互转换一、含有的be动词、助动词和情态动词的句子;一律在be动词、助动词和情态动词后加“not”,改为一般疑问句时,一律将be动词、助动词和情态动前移到句首(首字母大写)。肯定回答用“Yes”;否定回答用“No”。“Yes”或“No”后面的主语必须用代词,“No”后面必须用否定缩略式。1.Therearesomecomputersinthisschool.(be动词)Therearen’tanycomputersinthisschool.Arethereanycomputersinthisschool?(Yes
2、,thereare./No,therearen't.)2.LiMing’sfathercandrivethecar.(情态动词)LiMing’sfathercan’tdrivethecar.CanLiMing’sfatherdrivethecar?(Yes,hecan./No,hecan’t.)3.Shehasalreadyfinishedhishomeworknow.(助动词)Shehasn’tfinishedhishomeworkyet.Hasshefinishedhishomeworkyet?(Yes,shehas./No,shehasn’t.)二、只有行为动
3、词的句子。必须借助助动词do;does;did。改为否定句,在行为动词前加don’t(一般现在时态,主语是除第三人称单数之外的人称和数时);doesn’t(一般现在时态,主语是第三人称单数时);didn’t(一般过去时态)。改为一般疑问句时,在句首加Do;Does或Did。肯定回答用“Yes”,后面动词用do;does或did”;否定回答用“No”,后面动词用don’t(doesn’t;didn’t)”。1.Thechildrenlikeplayinggames.Thechildrendon’tlikeplayinggames.Dothechildrenlikepl
4、ayinggames?(Yes,theydo./No,theydon’t.)2.Maryusuallygoestoschoolonfoot.Marydoesn’tusuallygotoschoolonfoot.(原第三人称单数改为原形)DoesMaryusuallygotoschoolonfoot?(Yes,shedoes./No,shedoesn’t.)3.TomwenttoLondonyesterday.Tomdidn’tgotoLondonyesterday.(原过去式改为原形)DidTomgotoLondonyesterday?(Yes,hedid./No,
5、hedidn’t.)一般疑问句及特殊疑问句 一、一般疑问句:能用Yes或No来回答的问句。一般疑问句句尾读升调。1、谓语动词是be动词、助动词、情态动词时,只要直接把这些词置于句首,句末改成问号。AreyoufromJapan﹖Yes,Iam./No,I'mnot.Ishersisterdoingherhomeworknow﹖Yes,sheis./No,sheisn't.CanyouspeakFrench﹖Yes,Ican./No,Ican't.MayIgohomenow﹖Yes,youmay./No,youmustn't.2、谓语动词是行为动词时,必须在句首加上助
6、动词Do、Does(三单)、Did(过去式)加上这些助动词后,句子中谓语动词必须用原形。Doesheworkinabank﹖Yes,hedoes./No,hedoesn't.Doyoulivenearyourschool﹖Yes,Ido./No,Idon't.3、already要改成yet,some、something、somebody等分别改成any、anything、anybody等。4、常常把第一人称I、we改成第二人称you5.一般疑问句有时不用yes或no回答。如:Aretheyintownnow﹖Ithinkso.MayIsithere﹖Certainl
7、y.Doeshelikesoccer﹖SorryIdon'tknow.一、特殊疑问句:不能用Yes或No来回答的问句。特殊疑问句句尾读降调。1、以疑问词开头,对句中某一成分提问的句子叫特殊疑问句。常用的疑问词有:what(什么),who(谁),whose(谁的),which(哪个),when(何时),where(哪里),how(怎样),why(为何)howmany(有多少),howmuch(多少钱)等。2、疑问词作主语(who)或主语的定语(Whose),即对主语或主语的定语提问,其语序是陈述句的语序:疑问词(+主语)+谓语动词+其他成分如:whoissingi