高中英语人教版选修八教案：Unit3InventorsandInventions单元教案

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1、Unit3InventorsandInventionsWarmingUpPre-reading,ReadingTeachingGoals:1・Tolearnaboutthedifferencebetweenadiscoveryandaninvention2.ToarouseSs9interestinlearningaboutthestagesofaninvention3.TodevelopSs‘somebasicreadingskills・4.TodevelopSs‘abilitytodiscover

2、andsolvetheproblemsandcultivateSs‘creativityandimagination.TeachingProcedures:Step1.WarmingUpPurpose:ToarouseSs，interestinlearningaboutthedifferencebetweenadiscoveryandaninventionGetSsttoguesswhattheinventionisorwhotheinventorisingroupsQuestion1:Ifsmade

3、ofplasticsandmetal.Itlookslikeasmallbox.Theinventioncancontactsomeonewhileyouareonthemove.SuggestedAnswer:Mobilephone.Question2:TheinventorisfromAmerica.Heisoneofthefatherofinventions.Theinventorinventedthebulb.SuggestedAnswer:Edison2.GetSstotellasmanyt

4、heinventionstheyknowaspossibleingroups・3.AskSstolookatthepicturesonP19andanswerthefollowingquestions・(1)Whichofthepicturesisaninvention?(2)Whichofthepicturesisadiscovery?4.GetSstodiscussthedifferencebetweentheinventionsandadiscoveryandgiveadefinitionoft

5、hemandgivesomeexamplesofeachcategory.SuggestedAnswer:Aninventionissomethingproducedforthefirsttimethroughtheuseofimaginationoringeniousthinkingandexperimentation.Adiscoverymerelymakesknownsomethingthatalreadyexistsinnature・Step2.Pre-readingPurpose:Toget

6、Sstobeawareoftheconnectionbetweeninventingandthescientificprocess.1・LetSsworkinpairsanddecidedwhatthefirstandmostimportantstageistomakeaninvention・2.AskSstofinishtheexerciseofPre-readingonP19andthenchecktheanswerinpairs.Step3.Leading-inPurpose:ArouseSs'

7、interestinthetextandencourageSstoimaginethecontentofthetext.AskSstopredictinpairsthecontentofthetextbasedonthetitleandpictures.Step4.FastreadingPurpose:TogetSstohaveabriefunderstandingofthetext1.AskSstoreadthetextquicklyandtrytogetthemainideaofthewholet

8、ext.SuggestedAnswer:Thetextnarratestheproblemofthesnakesandpresentstheproceduresofcatchingthemandapplyingforapatent2.GetSstodividethepassageandworkoutthemainideaforeachpart・PartI(Para1):Thediscoveryoftheproblemofthesnakes.Part11(