【課件】人教必修三Unit 4 AstronomyWarming up

Unit4Astronomy:thescienceofthestarsWarmingup必修3Howmuchdoyouknowabouttheuniverse?Astronomyisoneoftheoldestsciences.Itisthescientificstudyofcelestialobjects(suchasstars,planets,comets,nebula,starclustersandgalaxies)andphenomenathatoriginateoutsidetheEarth'satmosphere(suchasthecosmicbackgroundradiation).Itisconcernedwiththeevolution,physics,chemistry,meteorology,andmotionofcelestialobjects,aswellastheformationanddevelopmentoftheuniverse.Astronomyisamultidisciplinarysubjectandusesknowledgefrombothmathandphysics.Thinkaboutthesequestionsandthendiscussthemwithyourpartner.Inoursolarsystemeightplanetscirclearoundthesun.Whatarethey?Canyoumatchthenameswiththeplanets?solarsystem太陽系

Mercury(水星)Venus(金星)Mars(火星)Jupiter(木星)Uranus(天王星)Neptune(海王星)Earth(地球)Saturn(土星)SunVenusMercuryMarsJupiterSaturnEarthPlutoNeptuneUranus2.Whatinterestsyouinastronomy?Doyouknowanyquestionsthatastronomersareinterestedin?Aristotle亞里斯多德Metaphysics(宇宙哲學(xué))張衡(78AD-139AD),earliestastronomerinChinaLaterHanDynastySeismography地震儀InventedseismographyandtheArmillarySphere(渾天儀)soastoobservetheuniverseandpredictearthquake

Galileo伽利略Galileomadeaseriesofprofounddiscoveriesusinghisnewtelescope,includingthemoonsoftheplanetJupiterandthephasesoftheplanetVenus(similartothoseofEarth’smoon).Copernicus哥白尼sun-centeredorheliocentric(以太陽為中心)theoryIsaacNewton,牛頓1642—1727

Universalgravitation萬有引力gravity地心引力,重力Einstein,Albert(1879-1955)愛因斯坦Relativity(相對論)andtheCosmos(宇宙)Thetheoryaboutblackholes(黑洞理論)霍金B(yǎng)lack

holesSatellites衛(wèi)星Spaceflights(太空飛行)Cheer

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FloatWeightlessCarbinastronomy

biochemistry

geophysics

medicine__________thescientificstudyoftreatmentofdiseasesandinjures___________thestudyofthechemistryoflivingthings_________thescientificstudyoftheearth’satmosphere,oceansandclimate__________thescientificstudyofobjectsinspace,suchasplanets,stars,cometsand“blackholes”astronomymedicinebiochemistrygeophysicsFillintheblanks.

astronomy

physicsmathematicsmedicine

biologychemistrygeophysics

geologyphysics

biochemistry

biologychemistry1.Whatdowemeanwhenwesaywearestudyingasubjectscientifically?Orwhat’sthecorrectattitudetowardsscience?

Weshouldbeobjective(客觀),notsuperstitious（迷信）.Answerthesequestions.2.What’sthecorrectwaytoproveascientificidea?

Weshoulddesignexperimentstotestitforseveraltimes.Thenwecananalyzetheresultsanddrawaconclusionatlast.3.Whatarethemostimportantskillsweneedtoberealscientists?

Careful,objectiveandlogical,drawconclusionsfromtheexperimentsandnotimposeconclusionsonthed