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1、2010Thecolumnchartonmobile-phonesubscriptionsaboveshowsastrikingcontrastbetweenthosedevelopingcountriesanddevelopedcountriesinthepastdecade.Since2004,peopleingrowingnumbersindevelopingcountriesusemobilephone,whilethoseindevelopedcountriesfarlagbehind.By2008,thereare4billionmobile-phoneus
2、ersindevelopingcountries,whichis3timesmorethanthatindevelopedcountries. Tworeasonsmaycontributetothecontrastabove.Ontheonehand,withtherapidincreaseineconomyofdevelopingcountries,thetelecommunicationindustrytheresurgestomeetthedemandofglobalization.Therefore,mobilephoneusersgrowsatanincr
3、ediblespeed.Ontheotherhand,developedcountrieshadreachedastateofprosperityineconomy,andcreatedlessroomsforfurtherdevelopmentsinmobilesubscriptions.Maybethatisthereasonwhythenumbermobilephoneusersinthedevelopedcountrieskeepevenoverthelastdecade. Tosumup,mobilephoneisconvenientforinterpers
4、onalcommunications,andgraduallybecometheindispensabletoolsinpeople'slife.Whenenjoyingtheconvenienceofcellphones,weshouldalsokeepaneyeonthenegativeeffectsitmightbringtoourenvironment.Onlyinthiswaycanpeopleindevelopingcountriesseeasustainablegrowintelecommunications. DearJack: Iwouldlike
5、toconveymyheartfeltthankstoyouforyourwarmreceptionwhenIparticipatedintheexchangeprograminyourcountry. YourgeneroushelpmadeitpossibleformetohaveaverypleasantstayandachancetoknowAmericanculturebetter.Besides,IthinkitisagreathonorformetomakefriendswithyouandIwillcherishthegoodwillyoushowed
6、tomewhereverIgo.IdohopethatyoucanvisitChinasomeday,sothatIcouldhavetheopportunitytorepayyourkindnessandrefreshourfriendship. Ifeelobligedtothankyouagain. SincerelyYours, ZhangWei2011 Thisbarchartindicatesdifferentmarketsharesofautomobilesofthreetypesofbrandaffiliationsbetween2008and2
7、009.In2008,carswithJapanesebrandstoppedthethreetypesofvehicles,accountingfor35%ofthetotalmarket.WhatfollowsisthecarswithChinesebrands,hitting25%oftheautomarket,withtheshareofAmericanbrandbottomedoutat15%.In2009,somedevelopmentsarenoticeableinthatthecarswiththelargestshare
