Unit6Whenwasitinvented？集体备课内容二次备课内容三维教学目标KnowledgeObject:Learnthenewwords:sweet,crispy,salty,sour,bymistake.2.Learntotalkaboutthehistoryofinventions.1.Master:be+pp.AbilityObject.：1）能运用所学知识练习被动语态的句式。2）能用所学句型进行交际练习。EmotionObject:培养学生的听说演等能力及合作学习的意识。教学重点1Trainthestudents'speakingandlisteningskillswiththetargetlanguage.2．Teachthestudentstousethenewvocabularycorrectly.教学难点被动语态的运用及构成。教法情景操练，反复使用，师生互动，生生互动。学法通过谈论历史上的发明物，充分掌握被动语态的用法.教学准备多媒体课件教科书录音机课前预习教学过程Step1RevisionHaveafreetalk.Askthestudentstopracticetalkingtoeachother。Step2PresentationⅠ.1a1.Readthefourwordsandaskstudentstorepeatthem.Givethemaminutetoreadandwritethewords.Thentellthestudentstheyareadjectivesandtheyareusedfordescribingthings.Forexample:Theappleissweetandsour.2.Getthestudentstodescribethethingswiththegivenadjectives.Somefoodhavemorethanoneword.3.Checktheanswers.Ⅱ1bAskthestudentstodescribehowfoodtasteandfinish1b.1.Listenagainandcompletethesentences.2.Checktheanswers.Ⅴ.2cPairworkThisactivityprovidesguidedoralpracticeusingthetargetlanguage.Askthestudentsworkinpairs.Roleplaytheconversationabouttheinventionofthepotatochip.Usetheinformationfrom2aand2b.Step3.SummaryWorkinpairs.Roleplaytheconversationabouttheinventionofthepotatochip.Usetheinformationfrom2aand2b.Homework:1.Learnthenewwords:sweet,crispy,salty,sour,bymistake.2.Learntotalkaboutthehistoryofinventions课后本节课成功之处：反思本节课需改进的地方：
