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1、有关手机的作文一Bringingacellphonecanbebothharmfulandhelpfulforamiddleschoolstudent.Firstofall,ifwehaveacellphone,wecancontactwithourfriendsandparentswhereverwewant.Secondly,wecangoonlineusingthecellphone.Also,ourparentscanfinduswhenwearenotathome.However,therearesomebadthings.Play
2、ingwiththecellphonemayaffectastudent'sgradeanddecreasehisinterestinstudy.Moreover,manystudentsareabletousecellphonestocheatduringexams,whichisabsolutelynotagoodthing.Finally,acellphonemaycostalotmoney,butweasstudentsdon'tearnmoney.二Mobilephonesarethemaininventionofmoderntec
3、hnology.TheyarecompletelypartofourdailylivesIfwelookatoursociety,wecanseethatallkindsofpeopleareusingmobilephones.Maybetheyhavemanyadvantages,buttheyalsoexperiencedrawbacks（不利条件）.Themainadvantageofmobilephonesisthatpeoplecanusethemanytimeandanywhere,sotheycanuseoneforanemer
4、gency.Inaddition,peoplecanaccesstheinternetwhenevertheyusethemobilephones,sobusinesspeoplecanusethematworktogetinformationfrominternetmoreconvenientlyMoreover,itisveryeasytosendmessagestoyourfriends.Mobilephonescanmakepeoplekeepintimacy(保持关系密切)inspiteoflongdistance.Mobileph
5、onesareturningtheworldintoasmallvillagewherewecancommmunicatewitheachothereasilyandsimply.Finally,anotherpointinfavourofmobilephonesisthatyoucanavoiddisturbinganyonewhenheissleepingorworkingbecauseinthatcasepeopleoftenturnofftheirmobilephones.Ontheotherhand,therearesomedraw
6、backs,too.Firstly,themostimportantdisadvantageistheunknowneffectsonhealthincaseofover-use.Scientistsfoundthatmobilephonescancausebraincancer.ifyoutalkforsomanyhours,youaregoingtohaveheadacheandearproblems.Secondly,themobilephonestimulatehomeforthehighcostofcommunication.Ify
7、ouarein3memberedfamily,youwouldspendalotofmoneyonmobilephone.Becausetowtothreeoffamilyhaveit,itcostabout150-200Dinamonth.Furthermore,theinappropriateuseofmobilephonescouldbebothersome.forexample,itisveryimpropriatetohereamobilephoneringingduringaformalconversation,duringale
8、sson,inalibraryorinacinema.Finally,mobilephoneswastepeopletoomuchtime.AnAmericansu
