【课件】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太阳系

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亚里斯多德Metaphysics(宇宙哲学)张衡(78AD-139AD),earliestastronomerinChinaLaterHanDynastySeismography地震仪InventedseismographyandtheArmillarySphere(浑天仪)soastoobservetheuniverseandpredictearthquake

Galileo伽利略Galileomadeaseriesofprofounddiscoveriesusinghisnewtelescope,includingthemoonsoftheplanetJupiterandthephasesoftheplanetVenus(similartothoseofEarth’smoon).Copernicus哥白尼sun-centeredorheliocentric(以太阳为中心)theoryIsaacNewton,牛顿1642—1727

Universalgravitation万有引力gravity地心引力,重力Einstein,Albert(1879-1955)爱因斯坦Relativity(相对论)andtheCosmos(宇宙)Thetheoryaboutblackholes(黑洞理论)霍金Black

holesSatellites卫星Spaceflights(太空飞行)Cheer

up

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

Weshoulddesignexperimentstotestitforseveraltimes.Thenwecananalyzetheresultsanddrawaconclusionatlast.3.Whatarethemostimportantskillsweneedtoberealscientists?

Careful,objectiveandlogical,drawconclusionsfromtheexperimentsandnotimposeconclusionsonthed