高中英语-b3Unit4-Astronomy课件-新人教版必修3VIP专享VIP免费

Unit4Astronomy:thescienceofthestarsWarmingupWhatarethenamesoftheeightplanetsthatcircleoursun?土星Saturn天王星Uranus金星Venus地球Earth火星Mars木星Jupiter海王星Neptune水星MercuryThesunDoyouknowanyquestionsthatastronomersareinterestedin?●Howdidtheuniversebegin?●Howdidlifebegin?●Istherelifeonotherplanets?●Arethereotherlifeformsintheuniverse?●Whathappenedtoallthematterafterthe“BigBang”?●Whatare“blackholes”?1.Theoriginoflifeonearthisaquestionthatinterestsastronomers.Whatdoyouknowaboutit?●Howoldistheuniverse?(severalbillionyearsago)●HowoldistheEarth?(between4.5and3.8billionyearsago)●WhichwerethefirstcreaturesorplantsonEarth?(extremelysmallplants)…Pre-reading2.Eachreligionandculturehasitsownideasabouthowlifebeganonearth.Whatdoyouknow?InChina,weallknowthatPanguseparatestheskyfromtheearthandNvwamadehumans.Panguseparatestheskyfromtheearth.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。Nvwamadehumans.Otherlegendsaboutthebeginningofuniverse.TheBiblicalAccountDay1:GodspokeandseparatedlightfromdarknesscreatingDayandNight.Day2:Godspokeandseparatedthewatercreatingskyandocean.Day3:Godspokeandcreateddryland.Day4:Godspokeandcreatedthesun,moonandstars.Day5:Godspokeandcreatedlivingcreaturesintheairandsea.Day6:Godspokeandcreatedthelandanimalsandman.Day7:GodrestedandblessedthisdaycallingitHoly.Howlifebeganontheearth“BigBang”otherbodies________starsEarth:acloudof_____atomsdustSummaryasolid_____theearth’s_____________other4._____Water:____________tothedevelopmentoflifewatervapournitrogencarbonextremelysmall_______onthesurfaceofthewaterglobegasesatmospherefundamentalplantsearly_________andallsortsoffishgreenplantsonlandlandanimalsinsectsamphibians___________hugeanimals(dinosaurs)theriseof__________humanbeingsshellfishreptilesmammalsComprehending1.Readthepassagecarefullyandanalyseitsstructure.Writethemainideaforeachparagraph.Para.1Theformation(形成)oftheearth.Para.2Theimportanceofwaterforlife.Para.3Awidelyacceptedtheoryabouttheformationoftheuniverse.Para.4Thearrivalofhumansandtheirimpactontheearth.Para.5Thedevelopmentofplantsandanimalsontheearth.TheorderofdevelopmentoflifeTheuniversebeganwitha“BigBang”.Theearthwasacloudofdust.Theearthbecameasolidball.Waterappearedontheearth.Smallplantsgrewonthewater.Shellfishandotherfishappeared.Plantsbegantogrowondryland.Insectsandamphibiansappeared.Reptilesappeared.Dinosaursappeared.Mammalsappeared.Cleveranimalswithhandsandfeetappeared.Thinkaboutwhatyouhavereadanddiscussthesequestionsinpair.1.Whywastheearthdifferentfromotherplanets?Thewaterremainedontheearth.2.Whydidtheplantsgrowbeforetheanimalscame?Becauseplantsprovideoxygenforanimalstobreathe.3.Whyisitwronginfilmsandstoriestoshowdinosaursandpeopletogether?Becausedinosaursdiedoutlongbeforehumanbeingsdevelopedontheearth.4.Thereusedtobenineplanetsinthesolarsystem.Recentlyscientistshavedecidedthatoneofthemcannolongerbeconsideredaplanet.Doyouknowthenameofthatplanet?Doyouknowwhytheyremovedit?Pluto.Scientistsnowthinkitistoosmalltobecalledaplanet.5.Whatproblemiscausedbyhumanbeings?Humanbeingscausedglobalwarming.Readthepassageagainandunderlineallthediscour...