Unit4Astronomy--thescienceofthestarsPeriod1Warmingup&ReadingMichelleMeng1.WhowrotethebookTheOriginofSpecies?

A.IsaacNewton

B.AlbertEinstein

C.CharlesDarwin2.WhoisfamousfortheTheoryaboutBlackHoles?

A.Hawking

B.

Newton

C.Einstein3.HowmanybigplanetsarethereintheSolarSystem?

A.7

B.8

C.9

4.Whichgasisthemostimportantforlife?

A.Carbondioxide

B.Oxygen

C.NitrogenQuizMercury水星Venus金星EarthMars火星Jupiter木星Saturn土星Uranus天王星Neptune海王星

A.Frog

B.Snake

C.DinosaurA.Dinosaur

B.

Dog

C.FishA.Fish

B.Snake

C.BirdQuiz5.Whichonebelongstoreptile?

6.Whichonebelongstomammal?

7.Whichonebelongstoamphibian?

8.Tellusabriefstoryabouthowlifebeganontheearth.

PanguseparatedtheskyfromtheearthNvwamadehumanbeingsfromtheclay(粘土).TheGodcreatedeverything.unscientificHowLifeBeganontheEarthviolentatmospherefundamentalacidachainreactionmultiplyexistgivebirthtoachemicalsubstancethathasaPHoflessthan7basic,mostimportantincreaseinnumberthemixtureofgasesthatsurroundstheearthaseriesofrelatedevents,eachofwhichcausesthenextproduceababyverystrongandsuddentobepresentinaplaceorsituation;tolivePara.1Para.2Para.3Para.4Para.5TheformationoftheearthThedevelopmentofplantsandanimalsontheearthThearrivalsofhumansandtheireffectontheearthThetheoryof“BigBang”asthebeginningoftheuniverseTheimportanceofwaterforlifeGroupworkReadingforStructureandMainIdeasPara.1&Para.2&Para.3ThedevelopmentoftheearthPara.4&Para.5ThedevelopmentoflifePartoneThedevelopmentoftheearth(Para.1-3)ReadingforInformationAfterthe“BigBang”,whathappened?(Para.2)What’s“BigBang”?(Para1)Whatdidthewaterdoonthe

earth?(Para3)Anexplosionthatthrewmatter

inalldirections.forseveralbillionyearsafter“BigBang”between4.5and3.8billionyearsagoWhathappenedontheearthatthattime?Whatdidtheexplosionproduce?wasjustacloudofdustsettledintoasolidglobeviolent,

exploded

withfireandrock(C,N2,H2O,andothergases)

madeatmosphereWaterappeared.

cooleddownWhatdidthewaterdoontheearth?…allowedtheearthtodissolve

harmful

gases

andacidsintotheoceansandseas.Afterthe“BigBang”,whathappened?achainreactionfundamentalPairworkStage2HowlifebegananddevelopedStage2Howlifebegananddeveloped(Para.4&5)plantsanimalsPlantsgrewintoforests.earlyshellfishandallsortsoffishlandanimals:insectsandamphibiansreptiles(dinosaurs)mammalsCleveranimalssmallplantsinthewaterGreenplantsbegantogrowonland.ReadingforInformationAstimewentby,humanbeingsdevelopedandbecamethemostimportantanimalsontheearth.Buttheyarenotlookingaftertheearthverywell.Whatproblemarethesecleveranimalscausing?TheyareputtingtoomuchCO2intothe

atmosphere,which

prevents

heat

from

escapingfromtheearth.GlobalWarmingDiscussionFacingtheproblemssuchasglobalwarming,howshouldweprotecttheearthandmakeitabetterplacetoliveon?

solarenergyplanttrees

recyclerubbishpreventdesertificationsavewater

purifyairWhetherlifewillcontinueontheearthdependsonhumanbeings.Onlyifwecarewillwehelp;onlyifwehelpshallallbesaved!Choosethebestanswertoeachquestionaccordingtothetext.(1)Whatisimportantforthebeginningoflife?A.Thewaterontheearth.B.Theearth’satmosphere.C.Theformofforests.D.Dissolvingharmfulgases.(2)Whichofthefollowingappearedontheearthfirst?A.Insects.B.Reptiles.C.Amphibians.D.Shellfishandfish.ConsolidationI（鞏固）(3)Whichofthefollowingstatementsistrue?A.WaterstillexistsonMars.B.Theearth’satmosphereismadeupofoxygenandnitrogen.C.Theearthhaddissolvedtheharmfulatmosphereintotheoceansandseas.D.Plantsprovideoxygentotheearth.(4)Whatisthepassagemainlyabout?A.Theappearanceanddevelopmentoflifeontheearth.B.Thebirthoftheearth.C.Whydinosaursdiedout.D.Thefactthathumanbeingscausedglobalwarming.Puttheorderofdevelopmentoflifeintoatimeline.Insectsandamphibiansappeared.Dinosaursappeared.Theearthbecameasolidball.Smallplantsgrewonthewater.Reptilesappeared.Plantsbegantogrowondryland.Theearthwasacloudofdust.Waterappearedontheearth.Shellfishandotherfishappeared.Theuniversebeganwitha“BigBang”.Cleveranimalswithhandsandfeetappeared.Mammalsappeared.107384961521211SummaryAfterthe“BigBang”,theearthwasstilljustacloudof_______.Whenitsettledintoasolid______,it________loudlywithfireandrock,whichwere__________toproduce_______,watervapourandothergases.Thenwaterbegantoappearontheearthastheearth_______________.Thensmallplantsappeared.They___________andfilledtheoceansandseaswithoxygen.Nextthefirstgreenplantsbeganto_______onland.Whentheplantsgrewintoforests,________appearedforthefirsttime.Theyproducedyounggenerallyby_________eggs.

dustglobeexplodedintimecarboncooleddownmultipliedgrowreptileslayingSummaryWhendinosaursdisappeared,__________becamemoreimportant.Finallysmallcleveranimalswith______________appearedand_______allovertheworld.Astimewentbytheycoveredtheearthandtheyareputtingtoomuchcarbondioxideintothe___________,which_______heat____theearthintospace.Whetherlifewillcontinueonearthformillionsofyearstocomewil