高中英语人教版必修3课件：《Unit 4 Astronomy the science of the stars》period 1

Astronomy:thescienceofthestarsPeriodone,Warmingup&reading,WarmingUp,Whatsubjectsdoyoulearnatschool?ChineseEnglishmathematicsphysicshistorygeographyphysicsbiologychemistrybrainstorminggeophysicsbiochemistry,astronomybiochemistrygeophysicsmedicine__________thescientificstudyoftreatmentofdiseasesandinjures__________thestudyofthechemistryoflivingthings_________thescientificstudyoftheearth’satmosphere,oceansandclimate__________thescientificstudyofobjectsinspace,suchasplanets,stars,cometsand“blackholes”astronomymedicinebiochemistrygeophysics,Astronomyisthescientificstudyoftheuniverseandtheheavenbodies(suchasthesun,themoon,andstars),gas,anddustwithinit.astronomer,TheSolarsystemeightplanetsmanycometsotherobjects,地球______木星______火星______水星________海王星_______F.冥王星_______G.土星________H.天王星_______I.金星________EarthJupiterMarsMercuryNeptunePlutoSaturnUranusVenus,Theearth’satmosphereTheearth’satmospherenitrogenoxygendioxidecarbonsurfacevapour,Theearth’satmospherePresentation,HOWLIFEBEGANONTHEEARTH?,Panguseparatestheskyfromtheearth,Nuwamakeshumanbeings,TheBigBang,Howmanypartscanthetextbedividedinto?Twoparts:Part1(para1)Part2(para2.3.4)Watermadeitpossibleforlifebegintodevelop.Thedevelopmentoflivingthings.,EnergeticdustAsolidballExplodeatmospherewater,Watermadeitpossible________________________forlifetobegintodevelop.,21smallplantsinwater3greenplantsonland456forests7892shellfishandallsortsoffish4insects(onland)5amphibians(onlandandinwater)7reptiles(onland)8dinosaurs(onland)9mammals(onland),________madeitpossibleforlifetobegintodevelop.Water,Later_____________appeared.landanimalsinsectsamphibians,Whenplantsgrewintoforests,______appearedforthefirsttime.reptiles,Somehugeanimals,called_________,developed.dinosaurs,Whendinosaursdisappeared,_________becamemoreimportant.mammals,Acloudofdust→asolidball→presenceofwater→onthewater→shellfish&otherfish→plantsbegintogrowondryland→insectsandamphibiansappear→retilesappear→dinosaursappear→mammalsappearThedevelopmentoflifesmallplantsgrowonthewaterappearshellfish&otherfishplantsbegintogrowondrylandinsectsandamphibiansappearretilesappeardinosaursappearmammalsappear,Exercises,Readparagraph2to4carefullyandfinishthefollowingform.Howlifebeganontheearth1.smallplantsinwater2.shellfishandallsortsoffish3.greenplantsonland4.insects(onland)5.amphibians(onlandandinwater)6.forests7.reptiles(onland)8.dinosaurs(onland)9.mammals(onland)10.smallcleveranimalswithhandsandfeet11.human,Becausethewaterremindedontheearth.Becauseplantsprovideoxygenforanimalstobreathe.Becausedinosaursdiedoutlongbeforehumanbeingsdevelopedontheearth.ThenameisPluto.Scientistsnowthinkitistoosmalltobecalledaplanet.Humanbeingscausedglobalwarming.ChecktheanswersonP271073849615212112.3.,GroupworkWhatproblemshavebeencausedbyhumanstotheearth?Howtoprotecttheearthandmakeitabetterplacetoliveon?,Asastudent,whatlittlethingscanwedofortheearth?Discussion,Whetherlifewillcontinueontheearthdependsonhumanbeings.Onlyifwecarewillwehelp,onlyifwehelpshallallbesaved!,Homework听写astronomy-----dioxide2.书上P28第４题1.solid;violent;astronomy;generallyspeaking;prevent…from;planet;development;explode;surface,methodConclusion