Whenyou'resurfingtheIntern-查字典问答网

来自皮德福的问题

　　Whenyou'resurfingtheInternetonyourlaptopfromyourdormorhomedoyouknowyourpersonaldetailsarebeinggatheredsecretly?Andwouldyoubesurprisedtoknowtheinformationmaybesoldcheaplytoadvertisersandmarketers?

　　AccordingtoaninvestigationbyTheWallStreetJournalallittakesisatinyfileinacomputer—asinglecodeconsistingofalongseriesofnumbersandletter—torecordthecomputeruser'sagegenderlocationfavoritemoviesandhobbies．

　　ThenewspaperreportsthatLotameSolutionsInc．aNewYorkcompanyusessophisticatedsoftwarecalleda '"beacon"tocapturewhatpeoplearetypingonawebsite．

　　Lotamepackagesthedataintoprofiles（个人资料）aboutindividualsonlywithouttheirnamesandsellstheprofilestocompaniesseekingcustomers．Suchdatamaybesoldforafewdollars．

　　TheWallStreetJournalsurveydiscoveredthatspyingonInternetusersisoneofthefastest-growingbusinessesontheInternet．

　　The"cookie"atinytextfileputonyourPCbywebsitesormarketingfirmswhichmightbeusedtorememberyourpreferencesforonesiteortotrackyouacrossmanysitesisalreadyoldnews．Therearenewandmorecomplextoolssuchas"beacons"whichscaninrealtimewhatpeoplearedoingonawebpage．'ThesebeaconsinstantlyassesstheInternetuser'slocationincomeshoppinginterestsandevenmedicalconditions．

　　MillionsofInternetusersaroundtheworldalsofacegreatthreats．Theirprivatesensitivepersonalandbusinessinformationisbeinggatheredandsoldwithouttheirknowledge．

　　Companiesinsistthattheinformationtheygatherisanonymous（匿名的）andthedataisusedharmlessly．ButthetechnologyhasgrownsopowerfulthatevensomeofthebiggestwebsitesintheUSdon'tknowthattheywere．installing（安装）intrusive（侵入的）filesonvisitors'computers．TheseincludeMSN．comandYahoo．com．

　　Nexttimeyouvisitawebpageandfindanadbanneradvertisingsomethingyou'vebeenplanningtobuydon'tbeamazedthatyourcomputercanreadyourmind．

　　57．Thepurposeofthepassageisto______．

　　A．showhowyourprivateinformationisletoutwhensurfingtheInternet

　　B．introduceaverytinyfileinyourcomputer—asinglecode