肯定句、否定句,疑问句.ppt

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1、陈述句：肯定句、否定句疑问句：一般疑问句特殊疑问句专项练习----句型转换一、肯定句变否定句1、句子中有be,在be后加not.1)Iamastudent.2)Theyareblue.3)HeisTom.Iamnotastudent.Theyaren’tblue.Heisn’tTom.2、句子中有can,在can后加not.Hecanswim.Hecan’tswim.Icanplayfootball.Ican’tplayfootball.WecanspeakEnglish.Wecan’tspeakEnglish.3、谓语动词是动词原形，在动词前加don’t.1)Ihaveabook.Id

2、on’thaveabook.2)TheylikeChinese.Theydon’tlikeChinese.3)WecomefromChina.Wedon’tcomefromChina.4、谓语动词是第三人称单数，在动词前加doesn’t,后面的动词用原形。1）Shehasasmallmouth.Shedoesn’thaveasmallmouth.2)MarialikesChina.Marisdoesn’tlikeChina.3)JanecomesfromtheUSA.Janedoesn’tcomefromtheUSA.练习：将下列句子变成否定句1.Iamateacher.2.Weares

3、tudents.3.Janeisagirl.4.TheylikeEnglish.5.IcomefromChina.6.WeknowMaria.7.HelikesChinese.8.AmycomesfromEngland.1.I________ateacher.2.We_______students.3.Jane______agirl.4.They_____likeChinese.5.I______comefromChina.6.We______knowMaria.7.He________likeChinese.8.Amy______comefromEngland.amaren’tnotd

4、on’tdon’tdoesn’tisn’tdoesn’tdon’t陈述句1、陈述句：肯定句I’mastudent.Icanswim.Iknow.Heknows.定义:陈述一个事实或说明一种情况，句末用句点。陈述句分肯定句和否定句。否定句I’mnotastudent.Ican’tswim.Idon’tknow.Hedoesn’tknow.肯定句变否定句的方法在be动词(is,am,are,was,were)助动词(do,does,did,),情态动词(can)后加not.二、肯定句变一般疑问句1、句子中有be,把be提到句首。1）Iamastudent.Areyouastudent?2)T

5、heyareblue.Aretheyblue?3)HeisSam.IsheSam?2、句子中有can,把can提到句首.Hecanswim.Canheswim？Icanplayfootball.Canyouplayfootball？WecanspeakEnglish.CanyouspeakEnglish？3、谓语是动词原形，在句首加Do.1)Ihaveabook.Doyouhaveabook?2)TheylikeChinese.DotheylikeChinese?3)WecomefromChina.DoyoucomefromChina?谓语动词是第三人称单数，在句首加Does,后面的动词

6、用原形。1)Shehasasmallmouth.Doesshehaveasmallmouth?2)MarialikesChina.DoesMarialikeChina?3)JanecomesfromtheUSA.DoesJanecomeformtheUSA?4)SheknowsMaria.DoessheknowMaria？练习：将下列句子变成一般疑问句1.Iamateacher.2.Janeisagirl.3.Theyarestudents.4.Wecanrunfast.5.Hecanswim.6.TheylikeEnglish.7.IcomefromChina.8.WespeakChi

7、nese.9.HelikesChinese.10.AmycomesfromEngland.1._______ateacher?2.___Janeagirl?3._________students?4._________runfast?5._________swim?6.____theylikeEnglish?7.___youcomefromChina?8.___youspeakChinese?9.___he____Chinese？1