2015-2016学年人教版必修三Unit4Astronomythescienceofthestarsperiod1课件（31张）VIP免费

ReadingWarmingUpWhatsubjectsdoyoulearnatschool?Whatsubjectsdoyoulearnatschool?ChineseEnglishmathematicsphysicshistorygeographyphysicsbiologychemistrybrainstorminggeophysicsbiochemistryastronomybiochemistrygeophysicsmedicine__________thescientificstudyoftreatmentofdiseasesandinjures__________thestudyofthechemistryoflivingthings_________thescientificstudyoftheearth’satmosphere,oceansandclimate__________thescientificstudyofobjectsinspace,suchasplanets,stars,cometsand“blackholes”astronomymedicinebiochemistrygeophysicsAstronomyAstronomyisthescientificstudyoftheuniverseandtheheavenbodies(suchasthesun,themoon,andstars),gas,anddustwithinit.astronomerastronomerTheSolarsystemTheSolarsystem•eightplanets•manycomets•otherobjectsA.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________EarthJupiterMarsMercuryNeptunePlutoSaturnUranusVenusTheearth’satmosphereTheearth’satmospherenitrogenoxygendioxidecarbonsurfacevapourTheearth’satmospherePresentationHOWLIFEBEGANONTHEEARTH?PanguseparatestheskyfromtheearthNuwamakeshumanbeingsTheBigBangTheBigBangHowmanypartscanthetextbedividedinto?Twoparts:Part1(para1)Part2(para2.3.4)Watermadeitpossibleforlifebegintodevelop.Thedevelopmentoflivingthings.EnergeticdustAsolidballExplodeatmospherewaterWatermadeitpossible________________________forlifetobegintodevelop.21smallplantsinwater3greenplantsonland456forests7892shellfishandallsortsoffish4insects(onland)5amphibians(onlandandinwater)7reptiles(onland)8dinosaurs(onland)9mammals(onland)________madeitpossibleforlifetobegintodevelop.WaterLater_____________appeared.landanimalsinsectsamphibiansWhenplantsgrewintoforests,______appearedforthefirsttime.reptilesSomehugeanimals,called_________,developed.Somehugeanimals,called_________,developed.dinosaursWhendinosaursdisappeared,_________becamemoreimportant.mammalsAcloudofdust→asolidball→presenceofwater→onthewater→shellfish&otherfish→plantsbegintogrowondryland→insectsandamphibiansappear→retilesappear→dinosaursappear→mammalsappearThedevelopmentoflifesmallplantsgrowonthewaterappearshellfish&otherfishplantsbegintogrowondrylandinsectsandamphibiansappearretilesappeardinosaursappearmammalsappearExercisesReadparagraph2to4carefullyandfinishthefollowingform.Howlifebeganontheearth1.smallplantsinwater2.shellfishandallsortsoffish3.greenplantsonland4.insects(onland)5.amphibians(onlandandinwater)6.forests7.reptiles(onland)8.dinosaurs(onland)9.mammals(onland)10.smallcleveranimalswithhandsandfeet11.human1.Becausethewaterremindedontheearth.2.Becauseplantsprovideoxygenforanimalstobreathe.3.Becausedinosaursdiedoutlongbeforehumanbeingsdevelopedontheearth.4.ThenameisPluto.Scientistsnowthinkitistoosmalltobecalledaplanet.5.Humanbeingscausedglobalwarming.ChecktheanswersonP27ChecktheanswersonP2710738496107384961521211152121122..33..GroupworkWhatproblemshavebeencausedbyhumanstotheearth?Howtoprotecttheearthandmakeitabetterplacetoliveon?Asastudent,whatlittlethingscanwedofortheearth?Whetherlifewillcontinueontheearthdependsonhumanbeings.Onlyifwecarewillwehelp,onlyifwehelpshallallbesaved!HomeworkHomework1.1.听写听写astronomy-----dioxideastronomy-----dioxide2.2.书上书上P28P28第４题第４题1.solid;violent;astronomy;generally1.solid;violent;astronomy;generallyspeaking;speaking;preventprevent……from;planet;development;from;planet;development;explode;explode;surface,methodsurface,methodConclusion