小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com八年级下学期期末重难知识点串讲+精练专题04句型转换及专练(一)变否定句1.be动词、助动词和情态动词后加_________动词变为_______形。MysisterJanedoescleaningonweekends.①MysisterJane______________________cleaningonweekends.Thetwinswerehappytoseetheiruncle.②Thetwins________________________toseetheiruncle.Thedoctorcouldhelpthatman.③Thedoctor________________________thatman.2.如果肯定句中含有这些词,就要发生改变。some---_____________and---________________alotof\lotsof---____________already---___________too/also---____________both…and…---____________everything/everyone/everybody---__________/___________/___________always---__________Cindytooksomephotosinthemountains.①Cindy__________take___________photosinthemountains.Shecoulddanceandsingwhenshewasfiveyearsold.②She___________dance__________singwhenshewasfiveyearsold.Ihavealreadyfinishedmyhomework.③I__________finishedmyhomework__________.3.否定转移的词有:think,________________________IthinkIcanpasstheexam.I__________thinkI__________passtheexam.4.一些特殊结构,变否定时,在动词(或词组)后直接加________。MymothertoldmetowatchTVlastnight.Mymothertoldme___________________watchTVlastnight.这样的词还有:____________________________________________________________________________【专练】小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com1.BothLucyandLilyareindependent.(改为否定句)________LucynorLily_____________independent.【答案】Neitheris【详解】句意:露西和莉莉都很独立。both...and...“两者都”,否定为neither...nor...“两者都不”,所以空一填Neither;neither...nor...连接并列主语时遵循“就近原则”,谓语的数与“Lily”保持一致,句子是主系表结构,时态为一般现在时,空二用be动词is。故填Neither;is。2.Willhelookafterhisbrother?(改为被动句)_______hisbrother_____________________byhim?【答案】Willbelookedafter【详解】句意:他会照顾他的兄弟吗?时态是一般将来时,被动语态是willbedone。故填Will;be;looked;after。3.Jimworksashardasyou.(改为否定句)Jim_______work_________hardasyou.【答案】doesn’tas##so【详解】句意:吉姆和你一样努力。句子含有实义动词“works”,变否定句时可借助助动词doesn’t;as...as“和某人一样……”,改为否定句时,第一个as也可用so,即notso...as,表示“不如……”。故填doesn’t;as/so。4.Maryhasbeentomuseummanytimes.(改为否定句)Mary________________tomuseummanytimes.【答案】hasn’tbeen【详解】句意:玛丽去过博物馆很多次。句子是现在完成时,其否定句构成为:主语+hasn’t/haven’t+过去分词+其他。故hasn’t;been。5.You’dbettergotoseeyourfriendnow.(改为否定句)Youhad___________gotoseyourfriendnow.【答案】betternot【详解】小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com句意:你最好现在去看你的朋友。考查否定句。原句中的“You’dbettergo”使用的是短语hadbetterdosth.表示“最好做某事”,其否定结构为hadbetternotdosth.。故填betternot。6.Lilyputonahatthismorning.(否定句)Lily_________________onahatthismorning.【答案】didn’tput【详解】本题考查肯定句和否定句的变化,根据题意可知是一般过去时态,其否定形式要借助did+not+动词的原形。故填didn’t;put。7.Hehasalreadyreadthebook.(改为否定句)He_______readthebook_______.【答案】hasn’tyet【详解】句意:他已经读完了那本书。考查否定句的结构。has作为助动词,其否定形式为hasnot,横线处只有一空,用其缩略形式hasn’t。already在现在完成时的否定句中,要改为yet。故填hasn’t;yet。8.BothMaryandLi...