Whenyougotoworkinthemorningandfindthattrafficlightsdon'twork,thetrafficjamwillcertainlyhappen.Apatientneedstobeoperatedonatonce.Whatwillhappeniftheoperationcannotbemadebecauseoftheelectricity.Withoutelectricity,wecanneitherwatchTV,listentothetape,norchatonline.Electricityiscloselyrelatedtoourdailylife.