高二英语 Unit 4 Astronomy the science of the stars reading教案.doc

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1、浙江省温州市永嘉中学教育集团楠江校区高二英语Unit4Astronomythescienceofthestarsreading教案TeachingGoals:1.ToenableSstobetterunderstandthetheoryabouttheoriginoftheuniverseandlifeontheearth—the“bigband”theory.2.ToenableSstoconcernaboutthefutureoflifeontheearth.Step1.Pre-readingPurpose:ToarouseS

2、s’interestinlearningaboutsomerelativeinformationabouttheuniverse.1.ShowsomepicturestotheclassandencourageSstosaysomeinformationabouthowlifebeganontheearth.Theycansaysomerelativelegends,folktalesorscientifictheoriesaboutthetopic.Thesolarsystemismadeupofthesunandtheobje

3、ctsthatorbitit.Theearth’satmosphereForreference:Someideasaboutthebeginningoftheuniverse:●PanGuturnsintoamyriadof(各种)things盘古化生万物●PanGuseparatestheskyfromtheearth盘古开天地●NuWamakesmen女娲造人ConclusionandLeading-in:Buttheseideasareallnotthecorrectandscientificideas.Doyouknowt

4、hescientificideaofthedevelopmentofthelifeontheearth?Thenwe’dbettercometothetext.Step2.FastreadingPurpose:Togetthegistofthepassage.Tocorrectlyunderstandsomeinformationgiveninthetext.1.AskSstoreadthetextquicklyandtrytogetthemainideaofthetext.SuggestedAnswer:Themainideao

5、fthetextisthetitle—Howlifebeganontheearth.2.AskSstoworkinpairsanddiscussthequestionsofEx1onP27.Andthenletthemchecktheanswersinpairs.Step3.IntensivereadingPurpose:togetthestudentstolearnthedetailsofthetext.(1)Answerthequestions:•Whendidthe“BigBang”happen?•Whatformwasth

6、eearththe“BigBang”?•Whatmadeuptheearth’satmosphereaftertheearthexploded?•Howdidwatercomeintobeingontheearth?•Whatwasimportanttothedevelopmentoffish?•Whatmadepossibletheriseofmammalsontheearth?•Whyaremammalsdifferentfromalllifeformsinthepast?（2）Fillinthechartabouttheor

7、derofdevelopmentoflife.SuggestedAnswers:①Smallplantsinwater②Shellfishandallsortsoffish③Greenplantsonland④Insects(onland)⑤Amphibians(onlandandinwater)⑥forests⑦reptiles(onland)⑧dinosaurs(onland)⑨mammals(onland)⑩humanbeings