助动词 do does的练习.doc

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1、be动词，情态动词，助动词do/does的用法区别及练习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.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

2、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.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. 变否定句时把don’t/doesn’t放在动词的前面。要注意观察动词的形式并对号入座。一般疑问句和否定句的动词三单式都要变回原型。play-----do      plays-----does 例如:肯定句:Theyplay

3、footballafterschool.    Heplaysfootballafterschool.一般疑问句:Dotheyplayfootballafterschool?   Doeshe play footballafterschool?否定句:Theydon't(donot)playfootballafterschool. Hedoesn’t’ play footballafterschool.画线提问: 对they/he提问:Whoplaysfootballafterschool?  对playfootball提问:Whatdotheydoafterschool? Wh

4、atdoeshe do afterschool?对afterschool提问:Whendotheyplayfootball? Whendoeshe play football?针对性练习按要求改写句子：1.Iknowtheanswer.(一般疑问句)           ______________________theanswer?2.Wecanseesomebirds.(一般疑问句)　____________see______birds?3.Hedesignsclothes.(一般疑问句)   ______he________clothes?4.Therearesomeflo

5、wersontheteachers’desk.(一般疑问句)__________________flowersontheteachers’desk?5.Therearesomeapplesonthetree.(否定句)There__________________applesonthetree.6.Ithinkheisveryold.(否定句)I______thinkhe______veryold.7.Pleasecolouritgreen.(否定句)____________colouritgreen.8.Thesedoctorsarehelpful.(变否定句)________

6、_____________________.9.Youmayhavesomehotdogs.(一般疑问句)_________________________________?.10.Therearen’tanypearsinthebox.(同义句)Thereare______pearsinthebox.11.Thissignmeans “Nosmoking”.　What______thissign_________?12.Shelooksyoung. （改一般疑问句）________she_______young?13.Sheisyoung.（改为一般疑问句） _________

7、_______________?14.Mypencilsare inthepencil-box.(对划线部分提问)____________yourpencils?15.Igetup atsix everyday.(对划线部分提问)______________________yougetupeveryday?16.Theyliketowalkhome.(改为一般疑问句)______they_______________________________?17.Thesearecars