主题：手机变迁题型：线图Thelinegraphshowstheaverageannualexpendituresoncellphoneandresidentialphoneservicesbetween2001and2010.范文：ThelinegraphcomparesaverageyearlyspendingbyAmericansonmobileandlandlinephoneservicesfrom2001to2010.Itisclearthatspendingonlandlinephonesfellsteadilyoverthe10-yearperiod,whilemobilephoneexpenditurerosequickly.Theyear2006marksthepointatwhichexpenditureonmobileservicesovertookthatforresidentialphoneservices.In2001,USconsumersspentanaverageofnearly$700onresidentialphoneservices,comparedtoonlyaround$200oncellphoneservices.Overthefollowingfiveyears,averageyearlyspendingonlandlinesdroppedbynearly$200.Bycontrast,expenditureonmobilesrosebyapproximately$300.Intheyear2006,theaverageAmericanpaidoutthesameamountofmoneyonbothtypesofphoneservice,spendingjustover$500oneach.By2010,expenditureonmobilephoneshadreachedaround$750,whilethefigureforspendingonresidentialserviceshadfallentojustoverhalfthisamount.
