人教版九年级英语Unit9whenwasitinvented?教学设计一．教材分析本单元学习的是一般过去时的被动语态，包括一般过去时的被动语态的结构和运用，是在九年级第三单元“Teenagersshouldbeallowedtochoosetheirownclothes”即含有情态动词的被动语态的基础上进一步学习被动语态，为以后被动语态扩展运用到不同时态中奠定基础。本单元涉及内容是本书当中比较重要的一部分。另外通过对我们熟悉经常使用的发明物的历史来开阔眼界，丰富学生的阅历，使学生养成勤于思考，善于总结的好习惯。二．学情分析九年级学生有较明确的学习动机和态度。本单元以发明为载体，通过各种发明和发明家激励学生求知的欲望。对刺激记忆手段多的知识记忆深刻，遵从记忆规律。大多数初中生主要通过他人评价初步形成对自己的评价，所以很在乎他人的评价。同时自我意识不断增强。因此在本课教学过程中，以任务型教学为主，通过任务和不同的评价方式，提高学生参与意识。三．教学目标1）知识与技能掌握新词汇invent，invention,inventor,beusedfor，新句型Whenwasitinvented?Itwasinventedin….What’situsedfor?It’susedfordoingsomething.Whowasitinventedby?Itwasinventedby….提高听力水平。理解和正确运用被动语态。能谈论重要发明的历史及用途。2）过程与方法本节课将在为学生创设真实的学习情境的基础上以个任务贯穿始终，循序渐进，通过pairwork,groupwork,survey等实践交流活动，使学生切身体验，总结一般过去时的被动语态的结构，用法。3）情感态度和价值观使学生懂得人类的科学发明创造了丰富的物质文明。培养学生的创造发明的能力和愿望及为理想而努力的信念。四.课时安排第一课时五.教学准备CAI课件，有关眼镜，手机，照相机，圆珠笔的发明历史，及自己感兴趣的发明的相关资料。六.板书设计Unit9Whenwasitinvented?SectionA1a-2cinventA:Whenwasthetelephoneinvented?calculatorB:Ithinkitwasinventedin1876.A：Whatisitusedfor?B:Itisusedfortalkingwithothers.A:Whowasitinventedby?B:Itwasinventedby__----.七.教学过程Step1leadinginPlayaguessinggame.Showabagtothestudents,therearesomethingsinit,forexample,apairofglasses,amobilephone,acamera,aballpen.Theninviteonestudenttocometothefront,he/shetouchesoneofthemanddescribesit.Otherstudentsguesswhatitis.Laterteachthenewwords“invention”Step2Task1.Learnthenewsentences.Pre-task:Teacherasks“Whenweretheglassesinvented?Helpthestudentsanswerthequestion“Theywereinventedin____.”thenask“Whataretheyusedfor?”andhelpthemanswer“Theyareusedforseeingclearly.”While-task:Readthefoursentencesinpairs,thendiscussotherinventions.展示主动语态的句子，以便区别主动语态与被动语态结构的差异。Post-task:Showsomepicturesofinventions,forexample,bicycle,lightbulb,basketball,umbralla,plane,givethestudentsthreeminutestopreparetheconversations.Thensomepairsactouttheirconversations.总结一般过去时的被动语态的结构。Step3Task2.ListeningPre-task:Showthefiveinventionsin1a,discusswhichonewasinventedearliest,andwhichonewasinventedlatest.Number1-5.Thenshowyouridea,forexample,“IthinkcarwasinventedbeforeTV.”While-task:Listenandmatchtheinventionswiththeyears.Post-task:Checktheanswers.Askthestudentstoreadouttheanswerslikethis“Telephonewasinventedin1876”Step4Task3Practicemakingconversations.Pre-task:Alltheinventionshavechangedourlife.Theyplaymoreandmoreimportantpartinourlife.Therearesomepeoplethatwemustremember.Learnnewword“inventor”.Showsomepicturesofpeople,forexample,Edison,ask“Whowaslightbulbinventedby?”Helpthestudentsanswer“ItwasinventedbyEdison”Readtheconversationinpairs.While-task:Watchtheinventionsin2a.Freetalk:Whatcanyouseeinthepicture?Whataretheyusedfor?Canyouguess?Learnthenewwords.Listenandmatchtheinventionswiththeinventorandtheusages.Thenlistenthetapeagainandchecktheanswers.Post-task:Makingconvertionswiththeinformationin2a,2binpairs.Step5Task4Introduceyourfavoriteinvention.Pre-task:Beforeclass,thestudentshavefoundtheinformationabouttheirfavoriteinventions.While-task:Askonestudenttoshowher/hisfavoriteinvention,Otherstudentsaskaboutinvention,forexample,“Whatisthat?Whenwasitinvented?Whowasitinventedby?Whatisitusedfor?”Thestudentanswerthequestions.Post-task:Todayweknowmanyinventionsandinventors,maybewewillbeinventorssomeday,sostudyhardandholdontoourdreams.Step6HomeworkWriteapassageaboutyourfavoriteinvention.
