【新课标】人教版高中英语必修3Unit_4_Astronomy-Warming_up_&_readi

ModuleIIIUnit41.What’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?4.Doyouknowthecorrectorderoftheirdistancetothesun?nearesttothesun?farthesttothesun?5.Thenamesofeightplanets.MercuryVenusEarthMarsJupiterSaturnUranusNeptune1)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II.Pre-reading1.Haveyoueveraskedyourmother,“Mom,wheredoIcomefrom”?2.Nearlyeverybodyhasthisorthatpuzzles:Howdohumanbeingscomeintobeing?Howdoestheearthcomeintobeing?3.InChina,therearetwolegendsaboutthesepuzzles.Doyouknowthenames?III.Fast-reading1.Doyoubelieveinsuchstories?Aretheybasedonscience?2.Inthisunit,we’lllearnsomethingmorescientific.3.What’sthetitleofthetext?4.Fromthetitle,wecanpredictthatthetextmaytellustheoriginoflifeontheearth.5.Whichquestionareyouinterestedininthistext?1)Howoldistheearth?2)Howdoestheuniversebegin?3)IsthereanywaterintheMars?4)Whendiddinosaursdisappear?5)Whichanimalisthemostimportantoneontheearth?6.Doyouknowwhichparagraphyoucanfindouttheanswer?7.Concludethemainideaofeachparagraph.1)Awidely______aboutthe_____oftheuniverse.2)Theformationofthe______.3)The__________ofwaterforlife.4)Thedevelopmentof______and_______ontheearth.5)Thearrivalof_______andtheir_____ontheearth.Thetextmainlytellsusthe_________oftheearthandthe___________oflifeonit.8.ThemainideaofReading1.Ex.1onP27theoryoriginearthimportanceplantsanimalshumansinfluence/effectformationdevelopmentDetailedreadingThistextcanmainlydividedintotwostagesStage1:ThedevelopmentoftheearthStage2:Thedevelopmentoflife(para1—3)(para4—5)Stage1:Thedevelopmentoftheearth(1)AftertheBigBang,whatwastheearthlike?acloudofdustasolidglobeexplodedwithfireandrockproducedwatervapourandgases(2)Whathappenednext?(3)Whatdidthewatervapourandgasesform?theearth’satmosphereWaterappeared(4)Whatappearedastheearthcooleddown?waterisimportantforthebeginningoflifeontheearth.Whyiswatersoimportantforthebeginningoflife?Becausewaterallowedtheearthtodissolveharmfulgasesintooceansandseas.Stage2Thedevelopmentoflifesmallplantsappearsinwater1.Whatlifedevelopedafterwaterappeared?Shellfishandallsortsoffish2.Whatlifedevelopedinwaternext?greenplantsbegantogrowonlandinsectsappeared3.Whataboutthelifeonland?amphibiansonlandandinthewaterforests4.Whatlifedevelopednextonland?reptilesappeareddinosaurdeveloped5.Whatlifedevelopedafterforestsappeared?mammalsonland6.Whatlifedevelopedafterdinosaurs?smallcleveranimals7.Whatlifedevelopedaftermammals?1.Whoarethesmallcleveranimalswithhandsandfeet?2.Aretheytakingcareoftheearthwell?Why?Becausetheyareputtingtoomuchcarbondioxideintotheatmosphere,whichpreventsheatfromescapingfromtheearthintospace.Theearthmaybecometoohottoliveon.CANYOUFILLINTHEBLANKS?23456789101smallplantsinwatershellfishandallsortsoffishinsectsreptilesamphibiansmammalsdinosaurshumansplantsanimalsGreenplantsonlandforestsCANYOUPUTTHEORDEROFDEVELOPMENTOFLIFEINTOATIMELINE?1.Insectsandamphibiansappeared.3.Theearthbecameasolidball.5.Reptilesappeared.7.Theearthwasacloudofdust9.Shellfishandotherfishappeared.11.Cleveranimalswithhandsandfeetappeared2.Dinosaursappeared.4.Smallplantsgrewonthewater.6.Plantsbegantogrowondryland.8.Waterappearedontheearth10.Theuniversebeganwitha“BigBand”.12.Mammalsappeared.831091151741262Ex.2onP27Howlifebeganonearthisoneofthebiggestpuzzlesthatscientistsfoundhardtosolve.Whatotherpuzzlesarehiddeninthepassage?Ex.5onP27Howdoestheuniverse(earth)form?Whydidtheearthcooldown?Whydidwaterdisappearonotherplanet?Howdidthedinosaurdisappear?SUMMARYAfterthe“bigbang”,theearthwasstilljustacloudof_______,it_______loudlywithfireandrock,whichwere_____toproducethe_________,watervapourandothergases.Then________begantoappearedontheearth.dustexplodedintimecarbonwater____________inwaterareconsideredtobetheearliestlivesontheearth.TheO2theysuppliedencouragedthelivesof______________.Slowlygreenplantsgrewonland,whichwerefollowedby__________likeinsects&________.Whentheplantsgrewinto______,______appeared.Then_______developedbutdisappearedlater,whichmadetheriseofatotallydifferentanimal,______,possible,andfinally_____spreadallovertheworld.shell--fishandfishamphibiansforestsreptilesdinosaursmammalhumansThesmallplantslandanimals