Unit4--全单元课件VIP免费

Unit4Astronomy: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-EverythingisaffectedbyaforcecalledgravityGravityisconnectedtotimeandspace“Blackholes”“eat”objectsbutalso“spit”themout.Itwasonlyabouttheearth.Itwasabouttheuniverse.Itwasaboutthingsfoundintheuniversecalled“blackholes”.AvisittothemoonOnthemoonThechangeofgravityInspaceVerystrongVeryheavyDisappearedFloatedweightlesslyVerylightThemasswillbelessLeavetheearthLastmonthIvisitedthemoonwithmyfriend.Beforeweleft,Iwastoldtheforceofg_____wouldchangethreetimesonourjourney.Thenwetookoff.Aswelefttheearth,Ibecameveryh_______.Graduallytheweightl_______.WhenIwasinspace,itd__________.Wef_______weightlesslyinthecabinandIc________.WhenIwasonthemoon,Iwassurprisedtofindoutevenwalkingneedslotsofpracticen______gravitychanged.Thereturningoftheearthwasveryf_________.Wewereamazedtowatchfireb________ontheoutsideoftheship.gravityheavylesseneddisappearedfloatedcheeredupnowthatfrighteningbreakoutAblackholeAboutusAbouttheblackholeAboutothersCircleoflightsLargestarsLikeamouthInshockandamazementLightwentoutComputersstoppedworkingFeelsickMymouthdryClosemyeyesSpaceshipnotmoveIwasbumpedandbangedabletolookSpitobjectsoutPullusintoitsmouthJumpedagain,increaseitsspeedasfastaslight,likeabirdJumpandwentfasterMywatchslowerexcitingComputerbegantoworkagainturnawayHomework1.Searchformoreabouttheblackhole.2.Readthesetwopassagesagaintofindouthowtoorganizeastory.Period3Listeningtask,talking,listenin...