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  TheFutureBodyNetworkAreyoutiredofwiresthatspreadalloveryourdeskandmakeyourteapourontoyourkeyboard?Ifso,youmayconsiderusingdevices(设备)thatusetechnologieslikeWi-FiorBluetooth.Neitherofthemsendsinformati

  TheFutureBodyNetwork

  Areyoutiredofwiresthatspreadalloveryourdeskandmakeyourteapourontoyourkeyboard?Ifso,youmayconsiderusingdevices(设备)thatusetechnologieslikeWi-FiorBluetooth.Neitherofthemsendsinformationthroughwires.Itsoundsperfect,doesn'tit?Butthisisnottheendofthestory.

  Scientistsarenowtryingtousethehumanbodytodoasimilarjob.Theyhavecomeupwiththeideaofsendinginformationoverthesmallelectricfieldonthesurfaceoftheskin.Todothis,atransmitter(传送器)couldbebuiltintoyourpocketoraportabledevicelikeanMP3player.Thistransmitterwouldthenuseyourskin'selectricalfieldtosendinformationtoareceivingdevice.Sincethiskindoftransmissioncanonlygoasfaras20cm,thereceiverwouldhavetobeclosetosomepartofyourbody.

  Byusingthisbodynetwork,youwouldn'tneedawiretolinkyourMP3playerinyourpockettotheheadphonesinyourears,ortosendtoyourcomputerthepicturesfromadigitalcamerahangingaroundyourneck.Moreover,youcanexchangeelectroniccardsorsharemusicfileswithothersbyshakinghands,dancingcheek(脸颊)tocheek,orkissingeachother.

  Now,herecomesaquestion.WhywouldanyonewanttousetheirbodyasanetworkwhenWi-FiandBluetoothalreadyexist?TheanswerliesinthefactthatwithWi-FiorBluetooth,itishardtolimitthesignalsonlytoyourownuse.Inabusyplace,youcanneverknowwhomightstealyourinformation.However,bodynetworkingissafer.Itishardforotherpeopletopickupsignalssentoverthesurfaceofyourskinsincethisbodynetworkonlyhasalimitof20cmfromyourbody.Thus,nooneelsecaneasilypickupandinterpretyoursignals.

  Moreover,themostimportantuseofbodynetworkinginthefuturemaywellbecommunicationwithinthebodyratherthanjustonitssurface.Imaginehavinganumberofsmalldevicesimplantedunderyourskinandusingthemtocontrolyourownnervoussystem.Inotherwords,imaginethatyouhaveapowerfulin-bodycomputer.Whatdoyouthinkofthisidea?Doesitsoundcool,likebeingacharacterinthemovieRoboCop?Orwouldyouprefertobejustanordinaryhumanbeing?

  40.What'sthemainideaofthepassage?___

  A.Technologyiscausingustobelazy

  B.Technologyisdoingharmto

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2020-11-18 13:56
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姜小成

  40.D.主旨大意题.根据第一段Areyoutiredofwiresthatspreadalloveryourdeskandmakeyourteapourontoyourkeyboard?Ifso,youmayconsiderusingdevices(设备)thatusetechnologieslikeWi...

2020-11-18 13:58:40

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