I.Whatareinthepictures?Unit4Unit4Astronomy:thescienceofthestarsMercuryVenusEarthMarsJupiterSaturnUranusNeptuneTHESOLARSYSTEMCanyounameeachplanetcorrectlyusingthelettersgiveninthetablebelow?A.地球______B.木星______C.火星______D.水星________E.海王星_______F.冥王星_______G.土星________H.天王星_______I.金星________EarthJupiterMarsMercuryNeptunePlutoSaturnUranusVenusII.Whatinterestsyouinastronomy?Quiz:1.WhowrotethebookTheOriginofSpecies(物种起源)?A.IssaacNewtonB.AlbertEinsteinC.CharlesDarwin2.WhoisfamousforthetheoryofBlackHoletheory?A.HawkingB.NewtonC.Einstein3HowmanybigplanetsarethereintheSolarSystem?A.7B.8C.94.Whichonebelongstoamphibian(两栖动物）?A.frogB.snakeC.dinosaur5.Whichonebelongstoreptile（爬行动物）?A.fishB.snakeC.bird8.Onwhichplanetaretherelivesatpresent?A.theVenusB.theEarthC.theMars7.Whichgasisthemostimportantforlife?A.carbondioxide(CO2)B.oxygen(O2)C.nitrogen(N2)6.Whichonebelongstomammal（哺乳动物）?A.dinosaurB.dogC.fishHOWLIFEBEGANONTHEEARTH•explode•surface•method•prevent•spread•developastronomyE.burstsuddenlywithaloudnoiseA.outsideofsomethingB.wayofdoingsomethingF.stopsomethinghappeningD.becomewider;gotootherplacesC.growup;takeshape;becomelargerormorecompleteG.scientificstudyofthestarsParagraph1:1.Awidelyacceptedtheorywasputupwith.Whatisit?Theuniversebeganwitha“BigBang”thatthrewmatterinalldirections.Afterthat,atomsbegantoformandcombinetocreatestars.A.Theearth’satmospherewasformedB.BigBangC.TheearthexplodedandproducedkindsofgasesD.WaterappearedE.TheearthcooleddownF.AcloudofenergeticdustG.Slowlycombineintoasolidglobe1234567Paragraph2:Putthesesentencesintotherightorder.Paragraph3:I.Whatdoes“Dissolve”mean?II.Whichthefollowingstatementsistrue?A.Unliketheearth,Marshaddisappearedlater.B.Waterwastobefundamentaltothedevelopmentoflifeoncewaterturnedup.C.Thecontinuedpresenceofwaterallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas.D.Watermadeitpossibleforlifetodevelop.“溶解”waterPlantsinthewaterShellfishandfishInsectsandamphibiansReptilesDinosaursMammalsPlantsonlandManhadevolvedfromapes.MainBodyParagraph1:Paragraph2:Paragraph3:Paragraph4:Paragraph5:AwidelyacceptedtheoryabouttheformationoftheuniverseTheformationoftheearthTheimportanceofwaterforlifeThedevelopmentofplantsandanimalsontheearthThearrivalofhumansandtheirimpactontheearthToseekKeywords1.Becausewaterandliferemainedontheearth.2.Becauseplantsprovidedoxygenforanimalstobreathe.3.Becausedinosaursdiedoutlongbeforehumanbeingsdevelopedontheearth.4.ThenameisPluto.Scientistsnowthinkitistoosmalltobecalledaplanet.5.Humanbeingscauseglobalwarming.makefulluseofsolarenergyplanttreesrecyclerubbishsavewaterpurifyairWhatcanwedototakecareoftheearth?Discussion:Whetherlifewillcontinueontheearthdependsonhumanbeings.Onlyifwecarewillwehelp;onlyifwehelpshallallbesaved!
