必修三 4.7《Unit 4 astronomyU4 M3》.pptVIP免费

新课标人教版课件系列《高中英语》必修3-4.7Unit4Astronomy:thescienceofthestarsHowLifeBeganontheEarthPeriod1ScienceScienceSubjectsSubjectsPhysicsChemistryBiologyGeologyMathematicsMedicineBiochemistryGeophysicsAstronomyAstronomyAstronomyisthescientificstudyoftheuniverseandtheheavenbodies(suchasthesun,themoon,andstars),gas,anddustwithinit.astronomerastronomerTheBigBangTheBigBangTheSolarsystemTheSolarsystem•eightplanets•manycomets•otherobjectsWaterWaterAirAirLifeLifeWateristheheadspringoflife.Wateristheheadspringoflife.?AcloudofdustCombineintoasolidballExplode…withfire&rock(produceH2O,CO2,O2,N2,othergases)atmosphereCooldownwaterappeareddissolveharmfulgasesinto…LifebeganLifedevelopedThedevelopmentoflifeAcloudofdust→asolidball→presenceofwater→onthewater→shellfish&otherfish→plantsbegintogrowondryland→insectsandamphibiansappear→retilesappear→dinosaursappear→mammalsappearThedevelopmentoflifesmallplantsgrowonthewaterappearshellfish&otherfishplantsbegintogrowondrylandinsectsandamphibiansappearretilesappeardinosaursappearmammalsappearGoodmorning/afternoon,IamDr….I’mgreatlyhonoredtobeheretogiveyouaspeechaboutthedevelopmentoflife.…Whatproblemshavebeencausedbyhumanstotheearth?Howtoprotecttheearthandmakeitabetterplacetoliveon?DesignanactivityonEarthDayWhattheactivityisaboutWhytheactivityisdesignedWhenandwheretodotheactivityWhotakespartintheactivityWhattobedoneintheactivity…Homework1.SearchtheInternetfortheinformationofthedevelopmentoflife.2.Readandlearngoodwords,phrasesorstructuresfromReading.Period2UsingLanguage&ReadingTaskthenaturalforcethatcausesanobjecttomovetowardthecentreoftheearth.GravityIsaacNewtonAlbertEinsteinStephenHawkingGravity1.Iheardabouthowthreemenmademistakeswhentheytriedtodescribegravity.2.Iheardabouthowthreemenwantedtofindoutaboutthebeginningoftheuniverse.3.Iheardabouthowtheideaofgravityhasdevelopedoveralongperiodoftime.4.Iheardaboutthreescientistsandtheirwork.MainideaNewtonEinsteinHawkingDatesIdeaOtherinfo.1642-17271879-19551942-Ev...