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1.由连系am,is,are构成的句子:变一般疑问句时把am,is,are提到句子的前面,句尾用问号即可。变否定句时直接在am,is,are后面加not即可。例如:肯定句:Heisastudent.一般疑问句:Isheastudent?否定句:Heisnotastudent.反问句:Heisastudent,isn'the?Heisn'tastudent,ishe?画线提问:对he提问:Whoisastudent?对astudent提问:Whatishe?orWhatdoeshedo?2.由情态动词can,may,should等构成的句子:变一般疑问句时把can,may,提到句子的前面,句尾用问号即可.变否定句时直接在can,may,后面加not即可.例如:肯定句:Shecanswim.一般疑问句:Cansheswim?否定句:Shecannotswim.反问句:Shecanswim,can'tshe?Shecannotswim,canshe?画线提问:对she提问:Whocanswim?对swim提问:Whatcanshedo?3.由行为动词构成的句子:需要加助词do或does.变一般疑问句时把do/does放在句子前面.例如:肯定句:Theyplayfootballafterschool.一般疑问句:Dotheyplayfootballafterschool?否定句:Theydon't(donotplayfootballafterschool.反问句:Theyplayfootballafterschool,don'tthey?Theydon'tplayfootballafterschool,dothey?画线提问:对they提问:Whoplayfootballafterschool?对playfootball提问:Whatdotheydoafterschool?对afterschool提问:Whendotheyplayfootball?1.由连系am,is,are构成的句子:变一般疑问句时把am,is,are提到句子的前面,句尾用问号即可。变否定句时直接在am,is,are后面加not即可。例如:肯定句:Heisastudent.一般疑问句:Isheastudent?否定句:Heisnotastudent.反问句:Heisastudent,isn'the?Heisn'tastudent,ishe?画线提问:对he提问:Whoisastudent?对astudent提问:Whatishe?orWhatdoeshedo?2.由情态动词can,may,should等构成的句子:变一般疑问句时把can,may,提到句子的前面,句尾用问号即可.变否定句时直接在can,may,后面加not即可.例如:肯定句:Shecanswim.一般疑问句:Cansheswim?否定句:Shecannotswim.反问句:Shecanswim,can'tshe?Shecannotswim,canshe?画线提问:对she提问:Whocanswim?对swim提问:Whatcanshedo?3.由行为动词构成的句子:需要加助词do或does.变一般疑问句时把do/does放在句子前面.例如:肯定句:Theyplayfootballafterschool.一般疑问句:Dotheyplayfootballafterschool?否定句:Theydon't(donotplayfootballafterschool.反问句:Theyplayfootballafterschool,don'tthey?Theydon'tplayfootballafterschool,dothey?画线提问:对they提问:Whoplayfootballafterschool?对playfootball提问:Whatdotheydoafterschool?对afterschool提问:Whendotheyplayfootball?根据句后括号内的要求,填入句中所缺的词:1.Iknowtheanswer.(一般疑问句____________knowtheanswer?2.Wecanseesomebirds.(一般疑问句____________see______birds?3.Thereisacomputerinmyhouse.(一般疑问句____________acomputerinhouse?4.Therearesomeflowersontheteachers’desk.(一般疑问句__________________flowersontheteachers’desk?5.Therearesomeapplesonthetree.(否定式There__________________applesonthetree.6.Ithinkheisveryold.(否定句I______thinkhe______veryold.7.Pleasecolouritgreen.(否定句____________colouritgreen.8.WecanspeakgoodEnglish.(变否定句We____________speakgoodEnglish.9.Thankyouforhelpingme.(同义句Thankyoufor____________.10.Therearen’tanypearsinthebox.(同义句Thereare______pearsinthebox.11.Whosearetheseclothes?(同义句____________arethese?12.Letmelookatyourbook.(同义句Letme________________________yourbook.13.Hersweaterisred.(对划线部分提问____________ishersweater?14.Mypencilsareinthepencil-box.(对划线部分提问____________yourpencils?15.Igetupatsixeveryday.(对划线部分提问____________doyougetupeveryday?16.Therearefiftystudentsinmyclass.(对划线部分提问____________studentsarethereinyourclass?17.Thesearecars.(用buses改写成选择疑问句Arethesecars____________?18.Thebookisinmyschoolbag.(变否定疑问句______thebookinyourschool-bag?19.Twoboysareinourhouse.(改为therebe句型____________twoboysinourhouse.20.Can’tyoufindthemap?(作肯定回答______,I______.参考答案：1.Doyou2.Canyou,any3.Isthere,your4.Arethereany5.arenotany6.don’t,is7.Pleasedon’t8.cannot9.yourhelp10.no11.Whoseclothes12.havealookat13.Whatcolour14.Whereare15.Whattime16.Howmany17.orbuses18.Isn’t19.Thereare20.Yes,can一、变否定句时相关词的改变肯定句变否定句时，除将谓语变为否定式外，句中其他词语也可能随之改变，如将some改为any，too和also改为either，already改为yet，and改为or等：Therearesomebirdsinthetree.树上有些鸟。→Therearen’tanybirdsinthetree.树上没有鸟。Helikesthegirl,too.他也喜欢这个女孩。→Hedoesn’tlikethegirl,either.他也不喜欢这个女孩。Wehavealreadyseenthefilm.我们已看过这部电影。→Wehavenotseenthefilmyet.我们没有看这部电影。Helikessinginganddancing.他喜欢唱歌和跳舞。→Hedoesn’tlikesingingordancing.他不喜欢唱歌也不喜欢跳舞。二、不变谓语动词而变其他词语有时将肯定句变为否定句时，不改变谓语而改变其他词语：Bothofuswentthere.我们两人都去了那儿。→Neitherofuswentthere.我们两人都没去那儿。BothJimandMarycansingthissong.吉姆和玛丽都会唱这首歌。→NeitherJimnorMarycansingthissong.吉姆和玛丽都不会唱这首歌。Allofthebooksareworthreading.所有这些书都值得读。→Noneofthebooksareworthreading.所有这些书都不值得读。三、部分否定与完全否定比较以下句子：Allofuslaughedwhenweheardit.听到这事时我们都笑了。(肯定句Allofusdidn’tlaughedwhenweheardit.听到这事时我们并未都笑。(部分否定Notallofuslaughedwhenweheardit.听到这事时我们并未都笑。(部分否定Noneofuslaughedwhenweheardit.听到这事时我们都没笑。(完全否定【注】可能涉及部分否定的词语有both,all,always,every等，即notboth表示“并非两者都”，notall表示“并非所有的都”，notalways表示“并非总是”，notevery表示“并非每个…都”。