《火星的英文介绍》PPT课件.ppt

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1、MarsExplorationIn1962,theSovietUnionlaunchedMars1detector,flying100millionkilometersawayfromearthandlostcontactwiththeground,it’sregardedasthebeginningoftheMarsexploration.In1965,theUnitedStates,“mariner4”flyingnearMars,10000kilometersfromMarstaken21photos,foundthattherearemanycratersonMars,andthea

2、tmospheredensityis1%oftheearth.In2002,theUnitedStates,“theOdyssey”MarsfoundthattheMartian(火星人，火星的）surfaceandnearsurfacemayhavealotoffrozenwater。Marsexplorationhasprogressedfromunmannedprobe(探索，探查）torobotdetectionstage.HumansarestepbystepclosetoMars.Mars---BigDiscoveryFoundoneIn2005,meteoriteMars---

3、BigDiscoveryFoundtwoLife，Mars---BigDiscoveryFoundthreeWaterresourceMars---BigDiscoveryFoundfourAirMars---BigDiscoveryFoundfiveVolcaniceruptionThankyou！By熊帆