unit-4-astronomy--reading.ppt

AQuizGame,1.Howoldistheearth?A.About3.5billionyearsB.About4.5billionyearsC.About5.5billionyearsD.About6.5billionyears2._oftheearthsurfaceiscoveredbywater.A.20%B.30%C.50%D.70%,3.HowmanyplanetsarethereintheSolarSystem?A.6B.7C.8D.94.Whatisthetotalpopulationofhumanontheearth?A.About3.5billionB.About4.5billionC.About5.5billionD.About6.5billion,5.Howlongdoestherotation(自转)oftheearthtake?A.12hoursB.24hoursC.amonthD.365days6.Whichcontinentisthesmallest?A.AfricaB.NorthAmericaC.SouthAmericaD.Oceania7.OnwhatdayistheEarthdaycelebrated?A.April22B.May4C.August21D.November11,8.Whichoceanisthelargest?A.ThePacificOceanB.TheArcticOceanC.TheIndianOceanD.TheAtlanticOcean9.Whichcountryhasthelargestarea?A.CanadaB.ChinaC.RussiaD.U.S.A,Canyounamethem?,Whatstheoriginoflifeonearth?,PanGusetaboutthetaskofcreatingtheworld,whichtook18,000years.Afterthe18,000years,PanGuwaslaidtorest.Hisbreathbecamethewind;hisvoicethethunder;lefteyethesunandrighteyethemoon;hisbodybecamethemountainsandextremesoftheworld;hisbloodformedrivers;hismusclesthefertilelands;hisfacialhairthestarsandmilkyway;hisfurthebushesandforests;hisbonesthevaluableminerals;hisbonemarrowssacreddiamonds;hissweatfellasrain;andthefleasonhisfurcarriedbythewindbecamethefishandanimalsthroughouttheland.,GodcreatedtheworldinthewesternLiterature,Day1:GodseparatedlightfromdarknesscreatingDayandNight.Day2:Godseparatedthewatercreatingskyandocean.Day3:Godcreateddryland.Day4:Godspokeandcreatedthesun,moonandstars.Day5:Godspokeandcreatedlivingcreaturesintheairandsea.Day6:Godspokeandcreatedthelandanimalsandman.Day7:GodrestedandblessedthisdaycallingitHoly.,BrahmaisthegodfirstrepresentedintheHinduTriad.Heisthecreatoroftheuniverseandalllivingbeingsaresaidtohaveevolvedfromhim.,Indiansbeliefs,Newwords,theoryatombillionglobeviolentcarbonnitrogen,atmospherefundamentalacidchainmultiplyOxygenamphibian,reptilemammalexistthusdioxidepreventfrom,True(T)orFalse(F)1.TheearthappearedbeforetheBigBanghappened.2.Theoriginalatmosphereconsistedofnitrogenandoxygen.3.Themaindifferencebetweentheearthandotherplanetsisthatthereiswaterontheearth.4.Lifebeganinwaterandthenonland.,F,F,T,T,Fastreading,5.Mammalsappearedbeforethedevelopmentofdinosaurs.6.Dinosaurscouldgivebirthtoyoungbabyanimalsandproducedmilktofeedthem.7.Humanbeingsproducetoomuchcarbondioxidewhichcausestheglobalwarmingontheearth.8.Accordingtothetext,humanbeingswoulddisappearintheend.,F,F,T,F,Para.1Theformation(形成)oftheearth.Para.2Theimportanceofwaterforlife.Para.3Awidelyacceptedtheoryabouttheformationoftheuniverse.Para.4Thearrivalofhumansandtheirimpactontheearth.Para.5Thedevelopmentofplantsandanimalsontheearth.,However,accordingtoawidelyacceptedtheory,theuniversebeganwitha“BigBang”thatthrewmatterinalldirections.beginwith=startwith：“以开始”.tobeginwith=tostartwith单独使用,表示“首先;第一;起初;最初”。在句中作时间状语。e.g.Tobegin/startwith,Icouldntswimatall.起初,我一点都不会游泳。intheory理论上你的计划理论上很好，但实际不可行。Yourplanisgoodintheory,butitcouldnotworkinpractice.,AcloudofdustSettleintoasolidballExplodewithfire而if只能引导宾语从句。,Theywereintimetoproducecarbon,nitrogen,ime:finally,soonerorlater;notlate;Illseehimintime.Shewillbebackintimetopreparedinner.atmosphere（空气，氛围）C,U这些植物喜欢湿热的空气。Theseplantsfavorawarmandwetatmosphere.两国元首在友好的气氛中洽谈。Thepresidentsofthetwocountriesareholdingtalksinafriendlyatmosphere.,astheearthcooleddown,waterbegantoappearonitssurface.appear表“出现”是动词，当表示“似乎,好像”时是系动词,该词无被动语态,且不和like搭配。Sheisfiftybutsheappearsyoung.她五十岁了,但看起来很年轻。(其实并非如此)Sheseemsyoung.她看起来很年轻。(根据个人的主观判断而推断出)Shelooksyoung.她很年轻。(从她外表可以感觉出)look可用于进行时,而seem,appear一般不能。Heislookingveryhappy.他现在看起来很高兴。,Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife.水会对于生命的发展起关键作用,这一点在当时并不太明显。,Whatmanyscientistsbelieveisthatthecontinuedpresenceofwaterallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas.Dosbharm/doharmtosb=beharmfultosb=harmsbThisproducedachainreaction,whichmadeitpossibleforlifetodevelop.makeit+adj./n.forsb./sth.todosth.,组长让我们可以一起合作。Thegroupleader_.老师让他们容易地明白那个问题。Theteacher_.,madeitpossibleforustoworktogether,madeiteasyforthemtounderstandthequestion,makeit+adj./n.forsb./sth.todosth.,Readparagraph4and5carefully,andfindouttheorderofdevelopmentoflifeontheearth.,10.theuniversebeganwithabigbang7.theearthwasacloudofdust3.theearthbecameasolidball8.waterappearedontheearth4.smallplantsgrewonthewater9.shellfishandotherfishappeared,6.plantsbegantogrowondryland1.insectsandamphibiansappeared5.reptilesappeared2.dinosaursappeared12.mammalsappeared11.cleveranimalswithhandsandfeetappeared,ClosereadingonPara4laid;laying)放置;产卵lie(lay;lain;lying)躺;位于lie(lied;lied;lying)说谎,Thenaughtyboy_tomethatthehenthat_therejustnowhad_twoeggsthedaybefore.A.laid;laid;laidB.laid;lay;lainC.lied;laid;lainD.lied;lay;laid,D,Theylayeggstooandexistedontheearthformorethan140millionyears.exist,existence,comeintoexistence（形成）你相信世界上有鬼么？Doyoubelieveintheexistenceofghost?Theseanimalsweredifferentfromalllifeformsinthepast,becausetheygavebirthtoyoungbabyanimalsandproducedmilktofeedthem.Theunusualexperiencegavebirthtohislatestnovel.这段奇特的经历促成了他的最新的一部小说。蚊子靠吸血为生。Themosquitoesfeedonblood.,Thustheyhave,intheirturn,becomethemostimportantanimalsontheplanet.inonesturn,Itsonesturntodosthbyturns（轮流，交替）taketurnstodo/doingsth轮到我做家务了。Iamtodothehouseworkinmyturn/itsmyturntodothehousework.Theyareputtingtoomuchcarbondioxideintotheatmosphere,whichpreventsheatfromescapingfromtheearthintospace.stop/prevent.(from)doing，keep.fromdoing,.theearthmaybecometoohottoliveon.当“only/all/not/buttooadj.(形容词)inf.(动词不定式)”时,等于very(非常)。Ishallbeonlytoopleasedtohearfromyoufurther.我非常欢迎你再来信。Theyarebuttoogladtodoso.他们非常喜欢这么做。在“cannotcannever.too”结构中，应理解为“无论怎样也不会过分”。Youcannotpraisehimtoohighly.你无论怎样表扬他也不过分。,whetherlifewillcontinueontheearthformillionsofyearstocomewilldependonwhetherthisproblemcanbesolved.在未来的千百万年中,生命能否在地球一延续将取决于这个问题能否得到解决。believesb.相信某人（所说的话）believeinsb.信任/信赖某人trust(in)sb.相信/信任/信赖某人depend/relyoncounton,Answerthefollowingquestions,1.Whywastheearthdifferentfromotherplanets?Thereiswaterontheearth.2.Whydidtheplantsgrowbeforetheanimalscame?Becauseplantsprovideoxygenforanimalstobreathe.,3