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GRE阅读笔记NO7-1.doc

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Section1 OurvisualperceptiondependsonSE thereceptionofenergyreflectingor radiatingfromthatwhichwewishto (5)measureinfinitelydelicatesense-data, wecouldperceivetheworldwith ofoureyeshave,ofcourse,been extendedbymechanicalinstruments;(10)telescopesandmicroscopes,forexample, is,however,anultimatelimitbeyond指示词 whichnoinstrumentcantakeus;this limitisimposedbyourinabilityto(15)receivesense-datasmallerthanthose﹤ conveyedbyanindividualquantumof tobeindivisiblepackagesofenergy andsocannotbefurtherrefined,we(20)reachapointbeyondwhichfurther resolutionoftheworldisnotpossible. Itislikeadrawingachildmightmake bystickingindivisiblediscsofcolor ontoacanvas.(25) Wemightthinkthatwecouldavoid thislimitationbyusingquantawith extremelylongwavelengths;suchquanta wouldbesufficientlysensitiveto conveyextremelydelicatesense-data.(30)Andthesequantawouldbeuseful, aslongasweonlywantedtomeasure⊙ energy,urateSE指示词— perceptionoftheworldwilldependalso ontheexactmeasurementofthelengths(35)andpositionsofwhatwewishto ,quantaofextremely uratelytowithina millionthofaninch,wemusthavea(40)measuregraduatedinmillionthsofan inch;ayardstickgraduatedininchesis inchwouldbe,inasense,measures (45)extremelylongwavelengthareuselessin measuringanythingexceptextremely⊙ largedimensions. Despitethesedifficulties,quantaSE指示词— haveimportanttheoreticalimplications(50) that,intheobservationofnature, theuniversecouldbedividedinto twodistinctparts,aperceiving (55)physics,subjectandobjectwere supposedtobeentirelydistinct, sothatadescriptionofanypart oftheuniversewouldbeindependent ,(60)however,suggestsotherwise,for指示词 everyobservationinvolvesthepassage pletequantumfromtheobjectto thesu

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