高中英语必修3_Unit4_Reading公开课

BookIIIUnit41.What’sthemeaningoftheword“Astronomy”?Warmingup行星Astronomyisthescientificstudyoftheuniverseandtheheavenbodies(suchasthesun,themoon,andstars),gas,anddustwithinit.2.Doyouknowthefollowingterms?star,planet,thesun/moon/earth,solarsystem太阳系3.Howmanyplanetsareinthesolarsystem?恒星4.Doyouknowthecorrectorderoftheirdistancetothesun?nearesttothesun?farthesttothesun?ScientistsnowthinkPlutoistoosmalltobecalledaplanet.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Inthisunit,we’lllearnsomethingmorescientific.1.What’sthetitleofthetext?2.Fromthetitle,wecanpredictthatthetextmaytellustheoriginoflifeontheearth.Doyouknowsomestoriesaboutit?InChina:____________separates(分)theskyfromtheearth.Pangu盘古skyearth_____________madehumanbeings.Nuwa(女娲)Inwesterncountries:GodcreatedtheworldinsevendaysHowlifebeganontheearthWhile-readingFastreadingReadthepassageonP25quickly,andmatchtherightmainideaofeachparagraph.Howmanypartscanthetextbedividedinto?Para.1Para.2Para.3Para.4Para.5AtheoryabouthowtheuniversewasformedTheformation(形成）oftheearthTheimportanceofwaterforlifeThedevelopmentofplantsandanimalsThearrivalofhumansandtheireffectsontheearthPart1:ThedevelopmentoftheearthPart2:Thedevelopmentoflife.DetailedReadingPart1(1~3):ThedevelopmentoftheearthPart1(para1~3)Thedevelopmentoftheearth1.AftertheBigBang,whathappened?2.Whathappenedtothesolidglobenext?3.Whatdidthewatervapourandgasesform?4.Whatappearedaftertheearthcooleddown?5.Whatdidthewaterdo?1.AftertheBigBang,whathappened?acloudofdustaviolentsolidballSettledintoexplodedwithfireandrockproducedwatervapourandgases2.Whathappenedtothesolidglobenext?Intime3.Whatdidthewatervapourandgasesform?theearth’satmosphereWaterappearedonitssurfacewhichisimportantforthebeginningoflifeontheearth.4.Whatappearedaftertheearthcooleddown?5.Whatdidthewaterdo?Itallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas.acloudof_____BigBangasolid_______slowlycombinetheearth______downitexplodedloudlywith_____and_____watertheearth’s___________dustball/globefirerockatmospherecooledHowdidtheearthcomeintobeing(产生）?Part2(4~5)Thedevelopmentoflife1.Whatlifedevelopedafterwaterappeared?2.Whatlifedevelopedafterforestsappeared?3.Whatlifedevelopedafterdinosaurs?4.Whatlifedevelopedaftermammals?Part2(para4~5)Thedevelopmentoflifearrivalofsmallplantsinwater1.Whatlifedevelopedafterwaterappeared?earlyshellfishandallsortsoffishPart2(para4~5)Thedevelopmentoflifereptilesonlanddinosaursonland2.Whatlifedevelopedafterforestsappeared?Howdoreptilesproduceyoung?bylayingeggsmammalsonland3.Whatlifedevelopedafterdinosaurs?Howdomammalsproduceyoung?bygivingbirthtobabyanimalsandproducingmilktofeedthem.smallcleveranimals4.Whatlifedevelopedaftermammals?1.Whoarethesmallcleveranimalswithhandsandfeet?2.Aretheytakingcareoftheearthwell?Why?Becausetheyareputtingtoomuchcarbondioxideintotheatmosphere,whichpreventsheatfromescapingfromtheearthintospace.Theearthmaybecometoohottoliveon.Howtosolvethisproblem?Tosolvethisproblem,peopleshouldprotecttheearthcarefully.Theymuststopputtingtoomuchcarbondioxideintotheair,reducepollution,controlthepopulationandsoon.Acloudofdust→asolidball→presenceofwater→onthewater→shellfish&otherfish→plantsbegintogrowondryland→insectsandamphibiansappear→retilesappear→dinosaursappear→mammalsappearThedevelopmentoflifesmallplantsgrowonthewaterappearshellfish&otherfishplantsbegintogrowondrylandinsectsandamphibiansappearreptilesappeardinosaursappearmammalsappearHomework1.Readthepassagemoreafterclass.2.DotheEx.2onP27.