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Unit10Whenwasitinvented?TheFirstPeriodⅠ.TeachingAimsandDemands1.KnowledgeObjects(1)KeyVocabulary:invent(2)TargetLanguageWhenwasthetelephoneinvented?Ithinkitwasinventedin1876.2.AbilityObjects(1)Teachthestudentstousethenewwords.(2)Trainthestudentstotalkaboutthehistoryofinventions.(3)Trainthestudents'listeningandspeakingskillswiththetargetlanguage.3.MoralObjectsManyimportantinventionshavechangedtheworldalot.Doyouknowtheinventorsofthem?Andwhenweretheyinvented?Ⅱ.TeachingKeyPoints1.KeyVocabulary:invent2.TargetLanguage:Talkaboutthehistoryofinventions.Ⅲ.TeachingDifficultPoints1.Trainthestudentstotalkaboutthehistoryofinventions.2.Trainthestudentstounderstandthetargetlanguageinspokenconversation.Ⅳ.TeachingMethods:1.Listening.2.Groupwork.3.Pairwork.Ⅴ.TeachingAids1.Ataperecorder.2.Somepicturesorrealobjectsoftheinventions.Ⅵ.TeachingProceduresStepⅠRevision1.RevisethelanguagepointsinUnit9.AsksomestudentstosaysomethingaboutTinaandthestorieshappenedonAprilFool'sDay.EncouragethemtousethePastPerfectTense.2.Checkthehomeworkbyaskingsomestudentstosharethesentencestheymadewiththeverbswiththeclass.StepⅡ1aThisactivityreviewsvocabularyandintroducesnewvocabularywhichcanbeusedtotalkaboutinventions.Havethestudentslookattheexampleconversationinthebox.Asktwostudentstoreadthisconversationtotheclass.Thenhavethestudentstalkaboutthefiveinventionsingroupsoffour,usingthesampleconversationasamodel.Askseveralgroupstotelltheclasstheiranswers.Therestoftheclasslistentothemandshowtheyhavedifferentanswersbyraisingtheirhands.Inthenextactivityyouwillfindouttherealdates.StepⅢ1bThisactivitygivesstudentspracticeinunderstandingthetargetlanguageinspokenconversation.Getthewholeclasstoreadtheinstructiontogether.Callthestudents'attentiontothefiveinventionsinthepicture.Askfivestudentstosaythenamesofthem.Thenaskthemtoseethefivedateswithablanklineinfrontofeach.Playtherecordingasecondtime.Letthestudentsmatchtheinventionsandthedates.Checktheanswersbyaskingseveraltosaytheanswerstotheclass.StepⅣ1cThisactivityprovidesguidedora