astronomy的阅读课件.ppt

Astronomy:thescienceofthestars,Unit4,HowLifeBeganontheEarth,Period1,Whatarethenamesoftheeightplanetsthatcircleoursun?,HowLifeBeganontheEarth,Period1,eightplanetsmanycometsotherobjects,TheSolarsystem,地球_木星_火星_水星_海王星_,F.土星_G.天王星_H.金星_,Earth,Jupiter,Mars,Mercury,Neptune,Saturn,Uranus,Venus,TheSolarSystem,Canyounametheeightplanets?,Jupiter,Uranus,Neptune,Saturn,Mercury,Mars,Earth,Venus,水星,金星,地球,火星,木星,土星,天王星,海王星,Quiz:,1.WhowrotethebookTheOriginofSpecies(物种起源)?A.IssaacNewtonB.AlbertEinsteinC.CharlesDarwin,2.HowmanybigplanetsarethereintheSolarSystem?A.7B.8C.9,3.Whichonebelongstoamphibian(两栖物）?A.frogB.snakeC.dinosaur,4.Whichonebelongstoreptile（爬行物）?A.fishB.snakeC.bird,7.Onwhichplanetaretherelivesatpresent?A.theVenusB.theEarthC.theMars,6.Whichgasisthemostimportantforlife?A.carbondioxide(CO2)B.oxygen(O2)C.nitrogen(N2),5.Whichonebelongstomammal（哺乳动物）?A.dinosaurB.dogC.fish,Doyouknoweachreligionorculturehasitsownideasabouttheoriginoftheuniverseorlife?,Pre-reading,BigBang,ChineseLegends(传说),Panguseparatestheskyfromtheearth.Hiswholebodythenturnsintoallkindsofthingsintheuniverse.,Panguseparatestheskyfromtheearth.,Nvwamakeshumanbeings.,AccordingtoBible(圣经),Godcreatedtheworldandthefirstman,Adam(亚当)andthefirstwoman,Eve(夏娃).,Godcreatedtheworldinsevendays.,ReligiousBeliefs,Godcreatedtheworldin6days,ScientificTheories,ReadingHowlifebeganontheearth?,Fastreading,1.Whatwasfundamentaltothedevelopmentoflife?2.Whendidsomecleveranimalsappreadontheearth?,Para3water,Para52.6millionyearsago,Para.1Para.2Para.3Para.4Para.5,A_abouthowtheuniversewasformed,The_oftheearth,Theimportanceof_forlife,The_ofplantsandanimals,Thearrivalof_andtheireffectsontheearth,theory,formation,water,development,humans,Careful-reading,Beforelifeappeared.,Differentlivesdeveloped.,Paragraph1:,1.Awidelyacceptedtheorywasputupwith.Whatisit?,Theuniversebeganwitha“BigBang”thatthrewmatterinalldirections.Afterthat,atomsbegantoformandcombinetocreatestars.,water,Plantsinthewater,Shellfishandfish,Insectsandamphibians,Reptiles,Dinosaurs,Mammals,Plantsonland,（）AInsectsandamphibiansappeared.（）BDinosaursappeared.（）CTheearthbecameasolidball.（）DSmallplantsgrewonthewater.（）EReptilesappeared.（）FPlantsbegantogrowondryland.（）GTheearthwasacloudofdust.（）HWaterappearedontheearth.（）IShellfishandotherfishappeared.（）JTheuniversebeganwitha“BigBang”.（）KCleveranimalswithhandsandfeetappeared.（）LMammalsappeared.,5,10,6,2,9,4,8,3,7,1,Puttheorderofdevelopmentoflifeintoatimeline.,12,11,Postreading,True(T)orFalse(F).,1.TheearthappearedbeforetheBigBanghappened.2.Theoriginalatmosphereconsistedofnitrogenandoxygen.3.Themaindifferencebetweentheearthandotherplanetsisthatthereiswaterontheearth.4.Lifebeganinwaterandthenonland.,F,F,T,T,summary,Afterthe“BigBang”,theearthwasjustacloudof_.It_loudlywithfireandrock,whichwereintimetoproducethewater_,carbondioxideandothergases.Thensmallplantsgrew.Theymultipliedand_theoceansandseaswithoxygen.Manymillionsofyearslaterthefirstgreenplantsbeganto_onland.Whentheplantsgrewintoforests,_appearedforthefirsttime.Theyproducedyounggenerallyby_eggs.,whendinosaursdisappeared,_becamemoreimportant.Nowsmallcleveranimalswith_appearedand_allovertheworld.Astimewentbytheycoveredtheearthandtheyareputtingtoomuchcarbondioxideintothe_,which_heat_theearthintospace.Whetherlifewillcontinueonearthformillionsofyearstocomewill_whetherthisproblemcanbesolved.,Whatproblemshavebeencausedbyhumanstotheearth?,Discussion,solarenergy,planttrees,recyclerubbish,preventdesertification,savewater,cleanair,Whatcanwedotakecareoftheearth?,Greenhouseeffect,(2)Buttheyarenottakingcareoftheearthverywell.Whatproblem