how life began on the earth公开课

Unit4Astronomy:thescienceofthestarsReadingHowLifeBeganontheEarthPangucreatedeverythingexcepthumanbeings.Nvwacreatedhumanbeings盘古女娲HOWLIFEBEGANONTHEEARTH?Matchtheparagraphswithmainideas.Para.1Para.2Para.3Para.4d.Thewidelyacceptedtheoryabouttheformationoftheuniverse.e.Theformationoftheearth.b.Theimportanceofwaterforlife.c.Thedevelopmentofplantsandanimalsontheearth.a.Thearrivalofhumansandtheirinfluenceontheearth.Para.5Para.1Para.2Para.3Para.4Para.5Thewidelyacceptedtheoryabouttheformationoftheuniverse.Theformationoftheearth.Theimportanceofwaterforlife.Thedevelopmentofplantsandanimalsontheearth.Thearrivalofhumans.?Nooneknowsexactlyhowtheearthbegan,asithappenedsolongago.However,accordingtoawidelyacceptedtheory,theuniversebeganwitha“BigBang”thatthrewmatterinalldirections.Afterthat,atomsbegantoformandcombinetocreatestarsandotherbodies.Para1Nooneknowsexactlyhowtheearthbegan,asithappenedsolongago.However,accordingtoawidelyacceptedtheory,theuniversebeganwitha“BigBang”thatthrewmatterinalldirections.Afterthat,atomsbegantoformandcombinetocreatestarsandotherbodies.Para1acloudof_____________intoasolid______theearth_______________wasformedTheearth______down,and____begantoappear.cooledsettledglobeexplodeddustwateratmosphereTheformationoftheearth.Para.1Para.2Para.3Para.4Para.5Thewidelyacceptedtheoryabouttheformationoftheuniverse.Theformationoftheearth.Theimportanceofwaterforlife.Thedevelopmentofplantsandanimalsontheearth.Thearrivalofhumans.?Para3Whatmanyscientistsbelieveisthatthecontinuedpresenceofwaterallowedtheearthtodissolveharmfulgasesandacidsintooceansandseas.Thisproducedachainreaction,whichmadeitpossibleforlifetodevelop.主语从句科学家们相信的是......Para.1Para.2Para.3Para.4Para.5Thewidelyacceptedtheoryabouttheformationoftheuniverse.Theformationoftheearth.Theimportanceofwaterforlife.Thedevelopmentofplantsandanimalsontheearth.Thearrivalofhumans.How?ManymillionsofyearslaterPara4NextLaterAfterthat65millionyearsagodevelopment？PlantsAnimals____________________Shellfish&fishPlants________ForestsReptilesDinosaursMammalsLandanimalsExtremelysmallPlants_______inwateronlandreptilesanddinosaursproducedyoungbylayingeggswhilemammalsgavebirthtoyoungbabyanimalsandproducedmilktofeedthem.卵生胎生Para.1Para.2Para.3Para.4Para.5Thewidelyacceptedtheoryabouttheformationoftheuniverse.Theformationoftheearth.Theimportanceofwaterforlife.Thedevelopmentofplantsandanimalsontheearth.Thearrivalofhumansandtheirinfluenceontheearth.what?Buttheyarenotlookingaftertheearthverywell.Theyareputtingtoomuchcarbondioxideintotheatmosphere,whichpreventsheatfromescapingfromtheearthintospace.Asaresultofthis,manyscientistsbelievetheearthmaybecometoohottoliveon.Para5So_________lifewillcontinueontheearthformillionsofyearstocomewilldependon_________thisproblemcanbesolved.whetherwhetherDiscussion:Theearthmaybecometoohottoliveon.Discussingroupsoffour:Howtosolvetheproblem--globalwarming?Globalwarminghas,initsturn,becomethemostseriousproblemallovertheworld.Weshouldtrytosolveitandatleastweshoulddosomechanges.Firstofall,________________________________________________________________________________Inaddition,______________________________________________________________________________What'smore,_____________________________________________________________________________Keepinmindthat_________________________________________________________________________