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1、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
2、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:Theyplayfootb
3、allafterschool.一般疑问句:Dotheyplayfootballafterschool?否定句:Theydon't(donot)playfootballafterschool.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
4、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
5、?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
6、在句子前面.例如:肯定句:Theyplayfootballafterschool.一般疑问句:Dotheyplayfootballafterschool?否定句:Theydon't(donot)playfootballafterschool.反问句:Theyplayfootballafterschool,don'tthey?Theydon'tplayfootballafterschool,dothey?画线提问:对they提问:Whoplayfootballafterschool?对playfootball提问:Whatdotheyd
7、oafterschool?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.Therearesomeflow
8、ersontheteachers’desk.(一般疑问句)__________________flowersontheteachers’desk?5.Therearesomeapplesonthetree.(否定式)Th
