核能(NuclearEnergy)

　　Nowadays,energycanbeobtainedthroughvarioussourcessuchasoil,coal,naturalgas,solarheat,wind,etc.Buttheconventionalenergylikeoil,coalsarebeinguseduprapidly,andsolarheatcan'tbecomewidelyusedimmediatelyfortechnologicalreason.Inmyopinion,unclearenergywilltaketheplaceofconventionalenergy,becausepeoplenowcancontrolthisenergyfreely,andunclearenergyisnon-polluting,inexhaustible,andit'smuchsaferthancoalandoil.Coalandoilareburned,theyalsoproducemanyharmfulgases,andtheairhasbeenseriouslypollutedbysuchgases,whichwillthreatenpeople'slivingenvironment.Andmanyaccidenthappenedbecauseofthewronguseofsuchenergies.

　　However,suchthingscan'thappenwhenweusenuclearenergy,Thoughwhenthenuclearleaksout,itwilldogreatharmtopeople'shealthandtheenvironment.Wecandoenoughworktoavoidsuchthings,andlimitedsuchthingsatalowpercentage.