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Unit4Astronomy:thescienceofthestarsTHESOLARSYSTEMCanyounameeachplanetcorrectlyusingthelettersgiveninthetablebelow?A.水星________B.金星________C.地球______D.火星______E.木星______F.土星________G.天王星_______H.海王星_______I.冥王星_______EarthJupiterMarsNeptunePlutoSaturnUranusVenusMercuryPre-reading1.Doyouknoweachreligionorculturehasitsownideasaboutthebeginningoftheuniverse?InChina,weallknowthatPanguseparatestheskyfromtheearth.中国神话传说中有盘古开天地的说法。巨人盘古用一把利斧劈开混沌,将天地分开。死后,他的气息化成风和云,声音变成轰轰的雷声,左眼化为太阳,右眼化为月亮,手足与四肢变成大地的四极与五方的名山,血液化成江河,筋脉铺成道路,肌肉形成田地,须发成为星星,牙齿和骨骼化为金属、珍珠、玉石,汗水成为滋润万物生长的甘霖和雨露。1.Wheredowecomefrom?Orwecansay:Whoareourancestors?2.Doyoureallythinkspaceflightsaremeaningful?3.Whyistheearththeonlyoneofalltheplanetsonwhichlifecansurvive?CooperativelearningHOWLIFEBEGANONTHEEARTH?ReadingReadingScanning1.Whatwasthereontheearthbeforelifecouldbegin?Watervapour,carbondioxide,oxygen,nitrogenandothergases.2.Whydoscientiststhinktherehasneverbeenlifeonthemoon?Becausethereisnowateronthemoon.3.Whydidanimalsfirstappearintheseas?Becausewaterallowedtheearthtodissolveharmfulgasesintotheoceansandseas.4.Whydidgreenplantshelplifetodevelop?Becausegreenplantscantakecarbondioxidefromtheatmosphereandfilltheairwithoxygen.5.Whyweremammalsdifferentfromotheranimals?Theyweredifferentbecausetheyproducedtheiryoungfromwithintheirbodies.Readthepassagequicklyandfindouttheanswerstothequestionsbelow.•1.What’sthemainideaofthetext?•2.Howmanypartscanthetextbedividedinto?•What’sthemainideaforeachpart?1.What’sthemainideaofthetext?Howlifebeganontheearth.2.Howmanypartscanthetextbedividedinto?Twoparts:Part1(para1-2)Part2(para3-5)Watermadeitpossibleforlifebegintodevelop.Thedevelopmentoflivingthings.Para.1Para.2Para.3Para.4Para.5A________abouthowtheuniversewasformedThe__________oftheearthTheimportanceof______forlifeThe_______________ofplantsandanimalsThearrivalof_________andtheireffectsontheearththeoryformationwaterdevelopmenthumansHowlifebeganontheearthBeforelifeappeared.Differentlivesdeveloped.Fillintheblankswiththeproperwords:Afterthe________,theearthwasacloudof_____.Laterthedustbeganto_______into_____.Andthenit________loudlywithfireandrock,whichwereintimeto__________thewatervapour,carbondioxide,…whichweretomaketheearth’s____________.Astheearth_______down,_____beganto________onitssurface.Waterhad_________fromplanetsorsatellites,butit_______ontheearth.Thatmadeitpossibleforlifetobeginto________.dustsettleexplodedproducecooledappeardisappearedstayeddevelop“BigBang”aglobeatmospherewaterFillintheblankswiththeproperverbs:Thearrivalof___________encouragedthe_________ofearly_____________________.Next,______________begantogrow_________.Later__________appeared.Somewere________.Others,called__________,wereabletoliveonlandaswellas_________.Whentheplantsgrewintoforests,________appearedforthefirsttime.Aftertheydisappeared,________becamemoreimportant.Theywerethelastgroupofanimalsdifferentfromalllifeformsinthepastbecausethey____________youngbabyanimalsand__________milktofeedthem.developmentshellfishandallsortsoffishonlandlandanimalsamphibiansreptilessmammalsgavebirthtosmallplantsgreenplantsinsectsinthewaterproduced2.Puttheorderofdevelopmentoflifeintoatimeline.Usethereadingpassagetohelpyou.10-7-3-8-4-9-6-1-5-2-12-11Readthetextagainandretellthefiveparagraphssoyoucanrememberthestoryoftheuniverse.Homework1.2.3.4.5.6.smallplantsOnsurfaceofwaterEarlyshellfishandallsortsoffishgreenplantsonlandlandanimalsinsects(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.followedmammalsHumansdevelopednew________ofgrowing,huntingandmovingaround.Astimewentbytheycoveredtheearth.Now_______carbondioxidehasbeenputtingintothe__________,which________heat_____escapingfromtheearthintospace.Asaresult,theproblemof______________occurs.Whetherlifewillcontinueontheearthformillionsofyearstocomewill___________whetherthisproblemcanbesolved.meansfrompreventsNow,I’mworriedaboutthefutureofmyselfandhumans…dependon︹toomuchatmosphereglobalwarmingAccordingtothepictures,haveatrytoretellthedevelopmentoflife.Supposeyouweretheearth,whatwouldyouadvisehumanstodo?Writealettertothehumanbeing.Para11awidelyacceptedtheory2beginwith3inalldirectionsPara21.Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.2.Theearthbecamesoviolentthatitwasnotclearwhethertheshapewouldlastornot.3.Whatisevenmoreimportantisthatas