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1、复习:含有be动词的肯定句改为一般疑问句的方法一找二提三抄四变找出be动词be动词提前其余照抄句中人称I变youmy变yoursome变any.变?含有情态动词的肯定句如何改为一般疑问句?什么是情态动词?情态动词表示说话人(或句子的主语)对某一动作或状态的一种感情和态度,本身具有各种意义,但不能单独作谓语,只能和主要动词一起构成谓语。常见的情态动词有哪些?canmaymustwillshallshould翻译句子。我会画画。学生应该努力学习。他必须每天早起。Icandraw.Studentsshouldstudyhard.Hemustgetupearly.快
2、点观察一下这三个句子有什么特点。把下面这三个含有情态动词的肯定句改为一般疑问句。1.Icandraw.2.Studentsshouldstudyhard.Canyoudraw?Yes,Ican./No,Ican’t.Shouldstudentsstudyhard?Yes,theyshould./No,theyshouldn’t.3.Hemustgetupearly.Musthegetupearly?Yes,hemust./No,heneedn’t.思考:含有情态动词的肯定句改为一般疑问句的方法是什么?Lookandpractice.Hecansing.You
3、maygonow.Imustgotoschoolbybike.Canhesing?Mayyougonow?Mustyougotoschoolbike?Yes,hecan./No,hecan’t.Yes,Imay./No,Ican’t/mustn’t.Yes,Imust/No,Ineedn’t.Icandraw.Thereisabirdinthetree.Youareanicegirl.Myfatherisateacher.Canyoudraw?Isthereabirdinthetree?Areyouanicegirl?Isyourfatherateacher
4、?小挑战:思考:Lookandlearn:1.Iusuallyhavelunchattwelve.Doyouusuallyhavelunchattwelve?2.Theyplayfootballeveryday.Dotheyplayfootballeveryday?3.Hegetsupatsixeveryday.Doeshegetupatsixeveryday?注意:这三个句子都没有be动词和情态动词,像这类句子,要借助do和does来帮忙。记住do和does后面的动词保持原形,主语是第三人称单数的时候就用does,其余的都用do.通过以上学习可总结陈述句改
5、为一般疑问句的方法有:一找二提三抄四变五借找出be动词、情态动词把be动词、情态动词提前其余照抄句中人称I变youmy变yoursome变any.变问号?没有be动词、情态动词借do和does来帮忙助动词do初步讲解一、助动词(auxiliaryverb)在英语中,助动词本身没有意义,只是帮助实义动词完成某些语法功能,如构成否定句、疑问句、简略答语等。助动词主要有do,have等。二.助动词do的基本用法do有三种形式:原形现在式第三人称单数过去式do的基本用法:构成否定句构成一般疑问句及回答1.IwanttogotoBeijing.Idon’twantto
6、gotoBeijing.2.WeliveinChongqing.Wedon’tliveinChongqing.3.LucyandLilyknowaboutChina.LucyandLilydon’tknowaboutChina.4.Herparentsworkinaschool.Herparentsdon’tworkinaschool.含实义动词的句子怎样变为否定句如果句子中的动词为______,变否定句时,在_______前加______________,其余不变。原形动词don’t(donot)1.HewantstogotoBeijing.Hedoes’
7、twanttogotoBeijing.2.PeterlivesinChongqing.Peterdoes’tliveinChongqing.3.LucyknowsaboutChina.Lucydoes’tknowaboutChina.4.Hermotherworksinaschool.Hermotherdoes’tworkinaschool.含实义动词的句子怎样变为否定句如果句子中的动词为_________________,变否定句时,在____前加_______________,然后把动词变为______,其余不变。第三人称单数形式动词does’t(doe
8、snot)原形1.IwanttogotoBeijin