Unit+4+Discover+useful+structures+现在完成进行时教学设计 高中英语人教版（2019）选择性必修第三册

现在完成进行时教学设计人教版（2019）高中英语选修三Unit4AdversityandCourageDiscoverusefulstructures赣县中学刘澄璐Type课型：GrammarTeachingObjectives教学目标Tomastertheusageofthepresentperfectcontinuoustense.Todistinguishthepresentperfectcontinuoustensefromthepresentperfecttense.Teachingkeypoints教学重难点Tomastertheusageofthepresentperfectcontinuoustense.Todistinguishthepresentperfectcontinuoustensefromthepresentperfecttense.Teachingprocedures教学过程LeadinAppreciatetheselyricsofasong，payattentiontothewordsinred，whatdotheyhaveincommon？answer：theyhavethesamestucture:have/hasbeendoing,即现在完成进行时态的结构。ObserveandanalyseActivity1Watchtwoshortvideosandanalyzethesentencesfromthem.thesentenceinthefirstvideois:Ihavebeenwaitinghereoveranhour.用时间轴来展现这个动作，waiting这个动作发生的时间是一小时之前，也就是动作发生在过去,waiting这个动作从过去持续到现在，andnow,sheisstillwaitingright?也就是说，waiting这个动作现在仍然在进行，thesentenceinthesecondvideois:haveyoubeenplayingwithjolly?换成陈述句来描述这个视频内容：peppahasbeenplayingwithaparrot.继续用时间轴来解释，playing这个动作发生的时间是在过去，并且play这个动作也从过去发生一直持续到现在，andnow,peppaisstillplayingwiththeparrot。也就是说，playing这个动作现在仍然在进行。so，fromthetwovideos,wecangetsummary1.Activity2understandthefolloingsituationsandcompletethesentences.payattentionntothetimeadverbial.fromthepractive,wecannsummarythecommontimeadverbial：for+时间段/since+时间点allday/allafternoon/allthetime...thisweek/thismonth/thisyear...recently/lately最近Activity3Pleasematchtwopicturesandtwosentences.example1:thefirstsentencematchesthepictureA,becausemaryisstillcleaningtheroomwhilethesecondsentencematchesthepictureB,becausemaryfinishedcleaningtheroom.example1:thefirstsentencematchesthepictureA,itmeansthatIamstilldoinghomework.buttheothersentencemeansthatIfinishedhomework。fromthetwoexamples,wecangetsummary3Summary1.现在完成进行时表示动作从过去开始,动作必须是持续做的或者是