人教高中英语必修三Unit4Reading课件.ppt

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1、ModuleIIIUnit4AstronomyWhat’sthemeaningoftheword“Astronomy”?I.Warmingupthescienceofstars;thescientificstudyofstarsandplanets.2.Whatwordswillyouthinkofwhenwetalkaboutthistopic?star,planet,thesun/moon/earth,solarsystem恒星行星太阳月球地球太阳系3.Howmanyplanetsareinthesolarsyst

2、em?8PlutoScientistsnowthinkPlutoistoosmalltobecalledaplanet.TheSolarSystem11115.Thenamesofeightplanets.MercuryVenusEarthMarsJupiterSaturnUranusNeptune1)水星2)金星3)地球4)火星5)木星6)土星7)天王星8)海王星商业之神和旅行之神爱与美之神该亚女神（大地、土壤等）战神天神农业之神宇宙之神海神MercuryVenusEarthMarsJupiterUranusSatu

3、rnNeptune6.PutthemincorrectorderonP25.Doyouknowtheirorigin?II.Pre-readingHaveyoueveraskedyourmother,“Mom,wheredoIcomefrom”?2.Nearlyeverybodyhasthisorthatpuzzles:Howdohumanbeingscomeintobeing?Howdoestheearthcomeintobeing?3.InChina,therearetwolegendsaboutthesepuzz

4、les.Doyouknowthenames?盘古开天辟地女娲补天造人4.Inthewesternculture,whocreateseverythingintheworld?TheGodIII.Fast-readingDoyoubelieveinsuchstories?Aretheybasedonscience?2.Inthisunit,we’lllearnsomethingmorescientific.3.What’sthetitleofthetext?4.Fromthetitle,wecanpredictthatt

5、hetextmaytellustheoriginoflifeontheearth.HowlifebeganontheearthD.AwidelyacceptedtheoryabouttheformationoftheuniverseC.TheformationoftheearthA.TheimportanceofwaterforlifeB.ThedevelopmentofplantsandanimalsontheearthE.ThearrivalofhumansandtheirimpactontheearthReadq

6、uicklyandmatchthemainideaofeachparagraphDetailedreadingThistextcanmainlydividedintotwostagesStage1:ThedevelopmentoftheearthStage2:Thedevelopmentoflife(para1—3)(para4—5)Stage1:Thedevelopmentoftheearth(1)AftertheBigBang,whatwastheearthlike?acloudofdustasolidglobee

7、xplodedwithfireandrockproducedwatervapourandgases(2)Whathappenednext?(3)Whatdidthewatervapourandgasesform?theearth’satmosphereWaterappeared(4)Whatappearedastheearthcooleddown?waterisimportantforthebeginningoflifeontheearth.Whyiswatersoimportantforthebeginningofl

8、ife?Becausewaterallowedtheearthtodissolveharmfulgasesintooceansandseas.？Stage2Thedevelopmentoflifesmallplantsappearsinwater1.Whatlifedevelopedafterwaterappeared?Shell