Our solar system

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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（热）.Itiswhite.Ithasnosatellite（卫星）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?