助动词do初步讲解一、什么是助动词在英语中,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be,do,have等。本单元我们主要探究do的基本用法。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(这里只需对此有基本了解即可)do的基本用法:构成否定句构成一般疑问句及回答构成特殊疑问句1.原形肯定式:do否定式:donot缩略否定式:don’t用法:do用在第一人称单复数、第二人称单复数和第三人称复数做主语,且时态为一般现在时的句子中。举例:Ilikethatreddress.否定句:Idon’tlikethatreddress.一般疑问句及回答:Doyoulikethatreddress?Yes,Ido./No,Idon’t.特殊疑问句:Whichdressdoyoulike?2.现在式第三人称单数肯定式:does否定式:doesnot缩略否定式:doesn’t用法:does用在第三人称单数做主语,且时态为一般现在时的句子中。注意:当does出现时,句子中用动词原形。举例:Shelikesthatreddress.否定句:Shedoesn’tlikethatreddress.一般疑问句及回答:Doesshelikethatreddress?Yes,shedoes./No,shedoesn’t.特殊疑问句:Whichdressdoesshelike?3.过去式(基本了解即可)肯定式:did否定式:didnot缩略否定式:didn’t用法:did用在时态为一般过去时的句子中,用于所有人称。注意:当did出现时,句子中用动词原形。举例:TheywantedtogotoBeijing.否定句:Theydidn’twanttogotoBeijing.一般疑问句及回答:DidtheylikewanttogotoBeijing?Yes,theydid./No,theydidn’t.特殊疑问句:Wheredidtheywanttogo?1.Whatcolor()youlikebest?A.doB.doesC.are2.Whatfood()shelikebest?A.doB.doesC.is3.Dosshe()applesorpears?A.likesB.likeC.liked4.—Doyoulikered?—().A.Yes,Idon’t.B.Yes,Ido.C.No,Ido.D.No,Idoesn’t.ANSWERS:ABBBEXERCISES5.Doyouhavetogonow?肯定回答:()否定回答:()6.Shehastwobrothers.变为一般疑问句并做肯定回答:()7.Theyhaveafootball.对划线部分提问:()ANSWERS:5.Yes,Ido.No,Idon’t.6.Doesshehavetwobrothers?Yes,shedoes.7.Whatdotheyhave?畅想网络ImaginationNetwork感谢观看!文章内容来源于网络,如有侵权请联系我们删除。