张萍bookunitwarmingupandreading-完整版课件

Unit4Astronomy

thescienceofthestarsHowmuchdoyouknowaboutthesolarsystem?Whatisitmadeupof?Step1Warmingupsolarsystem太阳系solarsystem太阳系sun

Mercury水星

Venus金星

Earth地球

Mars火星Jupiter木星Saturn土星Uranus天王星Neptune海王星SunVenusMercuryMarsJupiterSaturnEarthPlutoNeptuneUranus

InChineseculture…____________separates(分)thesky

fromtheearth.Pangu盘古skyearthStep2Lead-in_____________madehumanbeings.Nuwa(女娲)Inwesterncountries:

______________createdtheworldandall

livingthings.God(上帝)Step3FastreadingAnswerthequestions.1.Howdidtheatmosphereontheearthappear?3.Whydidtheplantsgrowbeforetheanimalscame?

2.Inoursolarsystem,whydoeslifeonlyexistontheearth?Becausethereisplentyofthewaterontheearth.Itcamefromtheexplosion.Becauseplantsprovideoxygenforanimalstobreathe.

4.Thetextmainlytellsusthe__________oftheearthandthe_____________oflifeonit.formationdevelopmentPara.1Para.2Para.3Para.4Para.51.Themainideaforeachparagraph.Step4.CarefulreadingA.Howhumansappearsandwhateffectstheyhavecausedtotheearth.B.Waterisveryimportantforlifeontheearth.C.HowtheearthformedD.HowtheplanetsandanimalsontheearthdevelopedE.Itiswidelyacceptedthattheuniversebeganwitha“BigBang”.2.Puttheeventsintoatimeline.1.Insectsandamphibiansappeared.3.Theearthbecameasolidball.5.Reptilesappeared.7.Theearthwasacloudofdust.9.Shellfishandotherfishappeared.11.Cleveranimalswithhandsandfeetappeared.Keys:1073849615212112.Dinosaursappeared.4.Smallplantsgrewonthewater.6.Plantsbegantogrowondryland.8.Waterappearedontheearth.10.Theuniversebeganwitha“BigBang”.12.Mammalsappeared.②①④⑤⑥⑦⑧⑨③⑩1112A

cloud

of

energetic

dust

AsolidglobeAtmosphere

4132dissolveharmfulgasesandacidsintotheoceansandseas

carbondioxide,watervapour…BigBangExplodewithfireandrockStep5:Detailreading(Para1-3)watersettleintocooldown1.smallplantsinwaterPara4-5:Finishthefollowingform.2.shellfishandallsortsoffish3.greenplantsonland5.amphibian(onlandandinwater)6.forests7.reptiles(onland)9.mammals(onland)10.cleveranimalswithhandsandfeet8.dinosaurs(onland)4.insects(onland)Step6.SummaryTheearthwasjustacloudof______afterthe“BigBang”,thentheearth________loudlywithfireandrock.Theywerein______toproducemanythingswhichweretomaketheearth’s____________.Astheearthcooleddown,waterbegantoappearonitssurface.Itallowedtheearthtodissolve________gasesandacidsintotheoceansandseas.Thenlifebegantodevelop.Thefirstsmallplants__________andfilledtheoceansandseaswithoxygen.Thisencouragedthe_____________oftheearlyshellfishandallsortsoffish.Landanimalssuchasinsects,reptilesanddinosaursandsoonturnedupaftergreenplantsappeared.Smallcleveranimals______allovertheearth.Theyareputtingtoo_____carbondioxideintotheatmosphere,which________heatfromescapingfromtheearthintospace.Sowhetherlifewillcontinueontheearthformillionsofyearstocomewill________onwhetherthisproblemcanbesolved.

dustexplodedtimeatmosphereharmfulmultiplieddevelopmentspreadmuchpreventsdepend