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Unit4

Astronomy:thescienceofthestars------reading

By楊小催

Ⅰ.Apuzzle

?

Whichcamefirst,eggorchicken?Step1.Lead-in

Loremipsumdolorsitamet,consecteturadipisicingelit,seddoeiusmodtemporBigBang

Ⅱ.VideoappriciationVideo

How

Life

Beganon

the

EarthLearningobjectives:Attheendoftheclass,youwillbeableto:-developyourreadingskills-understandtheoriginoflifeontheearth-developyourenviromentalprotectionawareness

Howlifebeganontheearth?Step2.Pre-readingPrediction

FillintheblanksaccordingtothetittleandthepictureonP26.

Thetextmainlytellsustheformation(形成)ofthe________andthedevelopmentof______onit.earth

life

predictionMatcheachparagraphwithitsmainidea

Tips:Whenyou'redoingthistask,don'treadsentencebysentence,justpayattentiontothekeywordsorthetopicsentences.

Ⅰ.SkimmingStep3.While-readingMatcheachparagraphwithitsmainidea.Para.1Theimportanceofwaterforlifepara.2Theformation(形成)oftheearth

para.3Atheoryabouttheoriginoftheuniversepara.4Thearrivalofhumansandtheirinfluence(影響)ontheearthpara.5Thedevelopmentofplantsandanimalsontheearth

Writedownthemainideaforeachparagraphandthenanalysethestructureofthepassage.tTheoriginoftheuniverseTheformationoftheearthTheimportanceofwaterforlifehumansandtheirimpactontheearthThedevelopmentofplantsandanimals

Ⅱ.Exploringthestructure(groupwork)Generalstructureofexpository說明文的一般結(jié)構(gòu)Par.1TheoriginoftheuniversePar.2

ThedevelopmentoflifeontheearthPar.3

relationshipbetweenhumansandtheearth4.6billionyearsago65millionyearsago2.6millionyearsagoTheevolutionoflifeontheearth1.Insectsandamphibiansappeared.3.Theearthbecameasolidball.5.Reptilesappeared.7.Theearthwasacloudofdust9.Shellfishandotherfishappeared.11.Cleveranimalswithhandsandfeetappeared2.Dinosaursappeared.

4.Smallplantsgrewonthewater.6.Plantsbegantogrowondryland.8.Waterappearedontheearth10.Theuniversebeganwitha“BigBand”.12.Mammalsappeared.831091151741262Ex.2onP27

Ⅲ.Exploringthetext

putthedevelopmentoflifeintimeorder

Pleasedrawamindmapofhowlifebeganontheearthandtrytoretellthedevelopmentoflifeontheearth.

Ⅳ.Drawingamindmapandretelling(groupwork)Thustheyhave,intheirturn,becomethemostimportantanimalsontheplanet.Buttheyarenotlookingaftertheearthverywell.Lookatwhatwehumanshavedonetotheearth.

Ⅰ

.ExploringthemindStep4.Post-readingSowhetherlifewillcontinueontheearthformillionsofyearstocomewilldependonwhethertheseproblemscanbesolved.

Willmanhavefuture?(我們還有希望嗎）Whyorwhynot?1Whathaveyoudone?2Whatwillyou

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