英语宇宙演讲PPT.ppt

英语宇宙演讲PPT.ppt

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Acomet,TheUniverse,Theuniverseisahugewide-openspacethatholdseverythingfromthesmallestparticletothebiggestgalaxy.NooneknowsjusthowbigtheUniverseis.,Scientistsbelievethatabout13.7billionyearsago,apowerfulexplosioncalledtheBigBanghappened.Thispowerfulexplosionsettheuniverseintomotionandthismotioncontinuestoday.Scientistsarenotyetsureifthemotionwillstop,changedirection,orkeepgoingforever.,theEarthisourhome.WerelivingontheEarth,anditisthemostbeautifulinthesolarsystem.Ithaslotsofwaterandplants.AndthemoonistheEarthspartner.ItgoesaroundtheEarth.AndotherplanetsareveryfarfromtheEarth.Sothepeoplecantreachthemandnoneofthemhasanenvironmentwithair.Thepeoplealsocantliveinthem.,黑洞,Ablackholeisastronggravityofobjects.Anditcanthavebeenengulfingmaterial.,Accordingtothelatestsuperstringtheory（超弦理论）.Ouruniverseiselevendimensional（维）,十一维空间,三维空间,Taurusthecrabnebula金牛座蟹状星云,Cygnusopenclusters天鹅座疏散星团,人马座礁湖星云,TheAndromedanebula仙女座星云,猎犬座球状星团,CanesvortexNebula猎犬座旋涡星云,ItisthecenteroftheMilkyWaygalaxyabout25000lightyearsaway,Thereismuchbeautifulandmagicviewintheuniverse.,