新课标人教版高中英语必修3Unit4AstronomyWarmingupreading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.Howmanyplanetsareinthesolarsystem?PlutoScientistsnowthinkPlutois

2、toosmalltobecalledaplanet.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”爱与美之神该亚战神天神农业之神宇宙之神海神MercuryVenusEarthMarsJupiterUranusSaturnNeptune6.PutthemincorrectorderonP25.Doyouknowtheirorigin?II.Pre-readingH

3、aveyoueveraskedyourmother,“Mom,wheredoIcomefrom”?2.Nearlyeverybodyhasthisorthatpuzzles:Howdohumanbeingscomeintobeing?Howdoestheearthcomeintobeing?3.InChina,therearetwolegendsaboutthesepuzzles.Doyouknowthenames?盘古开天辟地女娲补天造人4.Inthewesternculture,whocreateseverythingintheworld?TheGodIII.Fast-readi

4、ngDoyoubelieveinsuchstories?Aretheybasedonscience?2.Inthisunit,we’lllearnsomethingmorescientific.3.What’sthetitleofthetext?4.Fromthetitle,wecanpredictthatthetextmaytellustheoriginoflifeontheearth.HowlifebeganontheearthD.AwidelyacceptedtheoryabouttheformationoftheuniverseC.Theformationoftheearth

5、A.TheimportanceofwaterforlifeB.ThedevelopmentofplantsandanimalsontheearthE.ThearrivalofhumansandtheirimpactontheearthReadquicklyandmatchthemainideaofeachparagraphDetailedreadingThistextcanmainlydividedintotwostagesStage1:ThedevelopmentoftheearthStage2:Thedevelopmentoflife(para1—3)(para4—5)Stage

6、1:Thedevelopmentoftheearth(1)AftertheBigBang,whatwastheearthlike?acloudofdustasolidglobeexplodedwithfireandrockproducedwatervapourandgases(2)Whathappenednext?(3)Whatdidthewatervapourandgasesform?theearth’satmosphereWaterappeared(4)Whatappearedastheearthcooleddown?waterisimportantforthebeginning

7、oflifeontheearth.Whyiswatersoimportantforthebeginningoflife?Becausewaterallowedtheearthtodissolveharmfulgasesintooceansandseas.？Stage2Thedevelopmentoflifesmallplantsappearsinwater1.Whatlifedevelopedafterwaterappeared?Shellfishanda