高中英语 unit1 word power课件 牛津版必修2 课件VIP免费

WordpowerVocabularyextensionspaceexplorationspaceexplorationtrackingshiplaunchpadrocketlaunchtowerspaceshuttleastronautspacestationspacesuitspacewalkspaceexplorationastronautlaunchorbittheformerSovietUnionplanetsamplespaceshuttlespacecraft太空探险宇航员发射绕轨道而行前苏联行星样本航天飞机太空船launchpadlaunchtowerMercuryMarsNeptunePlutoVenusSaturnUranus天王星发射台发射塔水星火星海王星冥王星金星土星ThelaunchofShenzhouVIChinahassenttwoastronautsintospacethisyear.TheShenzhou-VIspacecrafthasbeensentintoorbitinthesecondhalfofthisyear.Itcarriedtwoastronautsandstayedinspaceforseveraldays.Thetwoastronautsonthemissionconductedscientificexperimentsintheorbitcapsuleofthespacecraftduringthespaceflight,buttherewerenoplansforspacewalksorotheractivitiesoutsidethespacecraft.theprocessofspaceexplorationThefirstartificialsatellitewaslaunched.PeoplecouldorbittheEarthin1961.Photosaretakenandsamplesarecollectedfromtheplanet.SunMercuryPlutoJupiterUranusVenusEarthMarsSaturnNeptune