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1、Unit6Whenwasitinvented?TheFirstPeriodSectionA1a–2cTeachingaims(教学目标)一、通过学习,熟练掌握以下词汇:style,project,pleasure,mention二、通过问答,掌握以下句型:1.A:Whenwasthetelephoneinvented?B:Ithinkitwasinventedin1876.2.A:Whataretheyusedfor?B:They’reusedforseeinginthedark.三、1.正确运用被动语态谈论重要的发明的历史和用途。2.掌握一般过去时态的被动语态
2、,由was/were+过去分词构成。学会单词invent,以及beusedfor的用法四、通过熟悉我们周围经常使用发明物的历史来开阔眼界,丰富自己的阅历,使自己养成勤于思考,善于总结的好习惯。(本节课的生词较少,而且单词的拼写比较简单,所以学生学起来不会感到困难,如果班级学生的水平较高,可以鼓励学生当堂掌握。)Difficulties(难点):被动语态/beusedfor的用法。Teachingsteps(教学步骤)1.Warm-upandrevision(课堂热身和复习)(1)Discussingroups:Whichdoyouthinkisthemostus
3、efulinvention?(2)Discussingroups:Inwhatorderdoyouthinktheywereinvented?A:IthinktheTVwasinventedbeforethecar.B:Well,IthinktheTVwasinventedafterthecar.教学设计说明:利用图片引出话题,创设情景,激活学生思维。2.Presentation(呈现新知识)Workon1b.Listenandanswer:Whichinventionsaretheytalkingabout?Listenagainandmatchtheinve
4、ntionswiththeyears.3.再听一遍录音,选择方框中合适的短语完成下面的对话。Alice:Wasyourlifeverydifficultwhenyouwereakid?Grandma:Oh,notreally.Why?Alice:Well,youdidn’t___________likeatelephone,right?Grandma:Ofcoursewedid!HowolddoyouthinkIam?Thetelephonewasinventedin1876.You___________,Alice!Alice:Ha,ha!Howaboutca
5、rs?Theyweren’tinventedyet,werethey?Grandma:Yes,theywere.Carswereinventedin1885.__________.Alice:Well,didyouhaveaTV?Grandma:No,we__________.Theywereexpensiveinthosedays.TheTVwasinventedaround1927,Ithink.Alice:Well,Iknowthatyoudidn’thaveacomputer,becausewelearnedinschoolthatpersonalcom
6、puters__________in1976.Woman:You’reright.ButIhaveonenow!教学设计说明:由易到难,训练听力的同时熟悉本课可功能句。4.PairworkA:Whenwasthetelephoneinvented?B:Ithinkitwasinventedin1876.教学设计说明:有输入变为输出,检查学生掌握本课功能句的情况。完成学习目标45.Workon2aLookatthepicturebelow.Whatarethethingsonthetable?教学设计说明:让学生熟读短语并明白其汉语大意。为后面的听力扫清生词障碍。
7、6.Listenandnumbertheinventions[1–3]intheorderyouhearthem.7.Listenagainandcompletethechartbelow8.观察与思考:通过刚才的听力训练,我们来总结一下beusedfor意为“被用来做……”,介词for表示目的和用途,后面接______或______。例如:Knivesareusedfor______________刀子是用来切东西的。练习:翻译句子(1)它用来在黑暗中照明。______________________________(2)钢笔是用来写的。___________
8、____________