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《Our solar system》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在教育資源-天天文庫。
1、OursolarsystemWeareinthesolarsystem.Therearenineplanetsinit.TheyaretheMecury（水星）,theVenus（金星）,theEarth,theMars（火星）,theJupiter（木星）,theSaturn(土星),theUanus（天王星）,theNepturn（海王星）andthePluto（冥王星）.Theycan’tgiveuslightandheat.Butthesuncangiveuslightandheat.Thisisthesol
2、arsystem.Nineplanetsgoroundthesun.Theyneverstop.Thesunisthehostofthesolarsystem.Itisastar.Itisverybig,brightandhotbecausethesunismadeofhotgas.Itisverybig,soitisveryheavy.Itis20000000000000000000kilogram.Then,wetalkaboutnineplanets.Mecury(水星)isthenearest（接近）plan
3、et（行星）tothesun,soitisveryhot（熱）.Itiswhite.Ithasnosatellite（衛(wèi)星）goroundit.Venus（金星）isthesecondnearestplanettothesun.Ithasnosatellite,too.ButitishoterthantheMecury.Itisgolden.Itisthebrightestplanetofthesolarsystem.MecuryandVenushavenosatellite.Theotherplanetbothha
4、veatleast（最少）onesatellate.WeareontheEarth.Ithasasatellite--moon.Itistheonlyonehasairinthesolarsystem.Itisn’tveryhotorcold,sowecanliveontheEarth.Marshastwosatellites.Itlookslikearedstarinthesky.Ithasseasons.Somepeoplesay,therearepeopleonit,anditisnottrue.Andthen
5、extfourplanetsaregasplanets.Theyhaveringroundthemselves.Jupiteristhebiggestplanetinthesolarsystem.Itisverybig.Ithas16satellitesroundit.Saturnisabigplanet,too.ButitissmallerthantheJupiter.Ithas22satellitesMorethantheJupiter.WeneedatelescopetoseeUanus,Neptune.Bec
6、ausetheyareveryfartotheEarth.Uanusisgreen.Ithas15satellitesroundit.Ittakes84yearsgoroundthesun.Neptuneisblue.ItHas8satellitesroundit.Ittakes164yearsgoroundthesun.Itismorefartothesun.Plutoisthefarestonetothesun.Wecannotseeit.Itisthesmallestplanetofthesolarsystem
7、.338Now,doyouknowwhatisthesolarsystem?
