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Unit4Astronomy:thescienceofthestarsPara.1
Para.2Para.3Para.4Para.5A________abouthowtheuniversewasformedThe__________oftheearthTheimportanceof______forlifeThe_______________ofplantsandanimalsThearrivalof_________andtheireffectsontheearththeoryformationwaterdevelopmenthumansHowlifebeganontheearthBeforelifeappeared.Differentlivesdeveloped.Part1(para1~3)Beforelifeappeared
Accordingtoawidelyacceptedtheory,howdidthestarsform?Howdidtheearth’satmosphereform?Whywastheearthdifferentfromtheotherplanets?Whatarolethewaterplayedinthedevelopmentoflife?1.Accordingtoawidelyacceptedtheory,howdidthestarsform?2.Howdidtheearth’satmosphereform?
Theuniversebeganwitha“BigBang”thatthrewmatterinalldirections,thenatomsbegantoformandcombinetocreatestars.Theearthwassoviolent.Itexplodedloudlywithforeandrocktoproducecarbon,nitrogen,watervaporandothergases,whichweretomaketheatmosphere.3.Whywastheearthdifferentfromtheotherplanets?4.Whatarolethewaterplayedinthedevelopmentoflife?Becausethewateronotherplanetshaddisappearedlater.Thepresenceofwaterallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas.ThisproduceachainreactionwhichmadeitpossibleforlifetodevelopTheearthwasjustacloudofdustwhosefutureis_________afterthe“BigBang”.Thenthedustbegantosettleintoa_______ballwhichisso________and_______loudlywithfireandrock,tobeintimetoproducemanythings,whichmaketheearth’s___________.Astheearthcooleddown,________begantoappearandpeoplethinkitisimportantforthebeginningoflife.Itallowedtheearthtodissolve________gases.Thenlifebegantodevelop.uncertainsolidviolentexplodedatmospherewater
harmful︶
︶︵
Ifeltlonelyandlifewasdullatthattime.Part2(para4~5)Howthelifedeveloped
1.Makeatimelineofthedevelopmentoflife2.Whydidtheplantsgrowbeforetheanimalscame?3.Whyisitwronginfilmsandstoriestoshowdinosaursandpeopletogether?1.2.3.4.5.
6.smallplantsOnsurfaceofwaterEarlyshellfishandallsortsoffishgreenplantsonland
landanimals
insects(onland)amphibian(onlandandinwater)Mammals---cleveranimalsforestsreptiles(hugeanimal--dinosaurs)
3.Whyisitwronginfilmsandstoriestoshowdinosaursandpeopletogether?2.Whydidtheplantsgrowbeforetheanimalscame?Becauseplantsprovideoxygenforanimalstobreathe.Becausedinosaursdiedoutlongbeforehumanbeingsdevelopedontheearth.︵︵︶
Nobodyunderstoodplantswerethestartofchanges.They___________andfilledthefirstoceansandseaswithoxygen.Thisencouragedthe_____________ofearlyshellfishandfish.Landanimalssuchasinsects,amphibians,reptilesanddinosaursandsoon_________afterthefirstgreenplantsappeared.Dinosaursdisappeared,whichmadepossibletheriseof_____________ontheearth.Thensmallcleveranimals____________allovertheearth.multiplieddevelopmentspreadWithsomanyfriendsonme,Iwashappy.followedmammals
Humansdevelopednew________ofgrowing,huntingandmovingaround.Astimewentbytheycoveredtheearth.Now_______carbondioxidehasbeenputtingintothe__________,which________heat_____escapingfromtheearthintospace.Asaresult,theproblemof______________occurs.Whetherlifewillcontinueontheearthformillionsofyearstocomewill___________whetherthisproblemcanbesolved.meansfrompreventsNow,I’mworriedaboutthefutureofmyselfandhumans…dependon︹toomuchatmosphereglobalwarmingAccordingtothepictures,haveatrytoretellthedevelopmentoflife.Supposeyouweretheearth,whatwouldyouadvisehumanstodo?Writealettertothehumanbeing.Para11awidelyacceptedtheory2beginwith3inalldirectionsPara2Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.Theearthbecamesoviolentthatitwasnotclearwhethertheshapewouldlastornot.Whatisevenmoreimportantisthatastheearthcooleddown,waterbegantoappearonitssurface.Para3Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife.Whatmanyscientistsbelieveisthatthecontinuedpresenceofwaterallowedtheearthtodissolveharmfulgasesandacidintotheoceansandseas.3makeitpossibleforlifetodevelopPara41onthesurfaceofthewater2filltheoceansandseaswithoxygen3liveonlandaswellasinthewater4produceyoungbylayingeggs5theageofthedinosaurs6remainamystery7.Thisdisappearancemadepossibletheriseofmammalsontheearth.Para51spread2.Theyareputtingtoomuchcarbondioxideintotheatmosphere,which
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