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1、Unit4I.ReadingComprehensionSectionAFastReadingTheInformationSuperhighway1AreyoutootiredtogotothevideostorebutyouwanttoseethemovieBeautyandtheBeastathome?Wanttolistentoyourfavoriteguitarplayer’slatestjazzcassette?Needsomenewreadingmaterial,likeamagazineorbook?Nop
2、roblem.JustsitdowninfrontofyourhomecomputerorTVandenterwhatyouwant,whenyouwantit,fromanelectroniccataloguecontainingthousandsoftitles.2.YourschoolhasnoprofessorsofJapanese,alanguageyouwanttolearnbeforevisitingJapanduringthecomingsummerholiday.Don’tworry.Justsign
3、upforthelanguagecourseofferedbyaschoolinanotherdistrictorcity,havethelatesteditionofthecourseofferedbyaschoolinanotherdistrictorcity,havethelatesteditionofthecourseteachingmaterialssenttoyourcomputer,andattendbyvideo.Ifyouneedextrahelpwithatranslationassignmento
4、ryourpronunciation,atutorcangiveyoufeedbackviayourcomputer.3Welcometotheinformationsuperhighway.4Whilenearlyeveryonehasheardoftheinformationsuperhighway,evenexpertsdifferonexactlywhatthetermmeansandwhatthefutureitpromiseswilllooklike.Broadlyspeaking,however,thes
5、uperhighwayreferstotheunionoftoday’sbroadcasting,cable,video,telephone,andcomputerandsemiconductorindustriesintoonelargeall-connectedindustry.5Directingtheunionaretechnologicaladvancesthathavemadeiteasiertostoreandrapidlytransmitinformationintohomesandoffices.Fi
6、ber-opticcable,forexample—madeupofhair-thinglassfibers—isatremendouslyefficientcarrierofinformation.Lasersshootinglightthroughglassfibercantransmit250,000timesasmuchdataasastandardtelephonewire,ortensofthousandsofparagraphssuchasthisoneeverysecond.6Thegreatlyinc
7、reasedvolumeandspeedofdatatransmissionthatthesetechnologiespermitcanbecomparedtothewayinwhichahighwaywithmanylanesallowsmorecarstomoveatfasterspeedsthanatwo-lanehighway—hence,theinformationsuperhighway.7TheclosetthingtoaninformationsuperhighwaytodayistheInternet
8、,thesystemoflinkedcomputernetworksthatallowsupto25millionpeoplein135countriestoexchangeinformation.8ButwhiletheInternetprimarilymoveswords,theinformationsuperhighwayw
