Asweknow,withthedevelopmentofsociety,moreandmorestudentsarehavingcellphone.Theyaregivenaspresentsfromparents,friendsorrelatives.Inmyopinion,thedisadvantagesaremuchmoreobviousthanadvantagesofusingcellphone.Herearemyreasons. 　　First,cellphonewilldistractusfromlisteningtotheteachersinclass.Forexample,whilewearehavingclass,andthecellphonerings,nodoubt,itwilldistruballofus,includingteachersandstudents.Soitwillhaveannegativeeffectonourstudy. 　　Second,itiscleartousthatusingcellphonewilldoharmtoourhealthandbrain,accordingtothescientificsurvey.Fromthepointofhealth,let'sstopusingthecellphone. 　　Lastbutnottheleast,manyofususecellphonetocommunicatewithourfriend.Butthequestioniswhethertheyareallgoodtoyou.Itmayeasilyleadtoushavebadfriends.