2016届《步步高》高考数学大一轮总复习(人教新课标文科)配套文档-5.1-平面向量的概念及其线性运

叶文海140220051Ononehand,webenefitalotfromInternet.PeopleallovertheworldcangatheredtogetherthroughtheinternetadvantagesMakestheworldsmaller.WecanmakefriendswithpeoplefromalloverheworldovercomingthegeographicalbarriersadvantagesWecansendE-mailstoourfriendsinwhereverinafewminutes,whilesendingatraditionallettertakesusatleastaweekandcostmuch.advantagesEasyandquickaccesstothelatestinformationadvantagesAcceleratetheflowofinformationandspreadeducationWecangothroughthenewsallovertheworldthroughtheInternet,whichcanbroadenoureyesandassistustolearnmoreabouttheworld.Shoppingonlinehasbecomeamodernpartofourlife.Savebothmoneyandtime,andoffersmorechoicesforus.advantagesOntheotherhand,thereisthenegativesidePlentyofjunkinformationspreadthroughtheInternet,disturbingourlifeterriblyandmakingabadinfluenceonteenagers.Soseriouslyaddictedtocomputergamesastomanystudentsignorestudy.FinishhomeworklookingforreplacementkillerinInternet.Makestudentslazyanddishonest.Interpersonalrelationshipsfade.Aninternet-addictedpersontendstobeisolated,self-centeredandunsociable.Allkindsofviolentcrimeasaresultofseekingtostimulate,suchasblindlyimitatingthenetworkgames,browsingpornographicwebsites.Therearesomanytrapsthatbeyondourguard!MakeundesirablefriendsontheInternet.HowshouldwefaceInternet?Onlywecombinethereallifeandcomputerscanweuseitreasonably.WeshouldcorrectlytreattheInternet,activelytakeadvantageofitsmodernizationmeans,andguidethechildrentoavoidit’sbadside.endThankyouforwatching.