Unit6WhenwasitinventedSectionA1a-1cperiod1Teachingaims:Knowledgegoals:1.Words&expressionscalculator,telephone,invent,invention……2.KeysentencesIthinkthecalculatorwasinventedbefore/afterthecomputer.Whenwasitinvented?Whoinventedit?Whowasit/weretheyinventedby?Itwas/Theywereinventedby...Teachingimportantpoints:Enablethestudentstoexpressopinionsondifferentinventions.Teachingdifficultpoints:thetargetlanguageTeachingaids:PPT,ataperecorderTeachingProcedures:Step1:Warmingup1.ShowthemsomepicturesandtrytorecallthefourgreatinventionsinancientChinaandthengettoknowmoreaboutinventionsinnowadays.2.Watchashortvideoabouttheinventionofthetelephone.Step2:Presentation1.GuessingGivesomeriddlesandaskstudentstoguesswhattheinventionsare.Thepurposeistomakethemmemorizethenewwordsaboutinventions.2.Talkaboutinventionsandusethetargetlanguagetodescribethem.Ithinkthecalculatorwasinventedbefore/afterthecomputer.3.ListeningFinish1b,andchecktheanswers.5.Workinpairstopracticethedialogues.Step4:ObserveObservethesentencepatternsandthemsummarizetheusageofpassivevoice.Step5:ConsolidationDosomerelatedexercises.Step6:SummarySummarizethekeysentencestructures.Whenwasitinvented?Whowasitinventedby?Step7:Homework:1.Findmoreinformationaboutinventions2.Memorizethenewwordsandsentences.