recentlyourclasshadaheateddiscussionaboutwhetherstudentsshouldcarryamobilephonewiththenselves.someholdtheviewsthatmobilephonesshouldbecarried.tobeginwith,mobilephonesprovideagoodplatformforstudentstocommunicatewiththeirparents,teachersandfriends.Second,mobilephonesisthebesttooltoseekhelpincaseofemergencyoraccidents.besides,nowadaysmobilephoneshaveavarietyoffunctions,suchase-dictionay,cameraandmp3,studentsshouldmakegooduseofthesefunctionsandasaresult,theycanrefertotheirmobilephoneswhenevertheymeetstrangewords.theycanalsolistentomusicandplaysomegamestorelaesepressure.however,othersarenot,theythinkitiseasyforsomestudentstobeaddictedtotheinternet,whichhadabadeffctontheirstudies.worsestill,theymaysendshortmessagesinclassorexam.also,mobilephoneshaveradiationthatharmsourhealth.Ithinkeverycoinhastwosides,weshouldmakeuseofitsadvantagesproperly.