英语六级阅读理解考前练习.docx

英语六级阅读理解考前练习英语六级阅读理解考前练习大学英语六级考试是由国家统一出题的，统一收费，统一组织考试，用来评定应试人英语能力的全国性的'考试，每年各举行两次。下面是小编分享的英语六级阅读理解考前练习，一起来看一下吧。英语六级阅读理解考前练习篇1Itisacuriousparadoxthatwethinkofthephysicalsciencesas“hard”,thesocialsciencesas“soft,”andthebiologicalsciencesassomewhereinbetween.Thisisinterpretedtomeanthatourknowledgeofphysicalsystemismorecertainthanourknowledgeofbiologicalsystems,andtheseinturnaremorecertainthanourknowledgeofsocialsystems.Intermsofourcapacityofsampletherelevantuniverses,however,andtheprobabilitythatourimagesoftheseuniversesareatleastapproximatelycorrect,onesuspectsthatareverseorderismorereasonable.Weareabletosampleearth’ssocialsystemswithsomedegreeofconfidencethatwehaveareasonablesampleofthetotaluniversebeinginvestigated.Ourknowledgeofsocialsystems,therefore,whileitisinmanywaysextremelyinaccurate,isnotlikelytobeseriouslyoverturnedbynewdiscoveries.Eventhefolkknowledgeinsocialsystemsonwhichordinarylifeisbasedinearning,spending,organizing,marrying,takingpartinpoliticalactivities,fightingandsoon,isnotverydissimilarfromthemoresophisticatedimagesofthesocialsystemderivedformthesocialsciences,eventhoughitisbuiltupontheveryimperfectsamplesofpersonalexperience.Incontrast,ourimageoftheastronomicaluniverse,orevenifearth’sgeologicalhistory,caeasilybesubjecttorevolutionarychangesasnewdatacomeinandnewtheoriesareworkedout.Ifwedefinethe“security”ofourimageofvariouspartsofthetotalsystemastheprobabilityoftheirsufferingsignificantchanges,thenwewouldreversetheorderforhardnessandasthemostsecure,thephysicalsciencesastheleastsecure,andagainthebiologicalsciencesassomewhereinbetween.Ourimageoftheastronomicaluniverseistheleastsecureofallsimplybecauseweobservesuchafantasticallysmallsampleofitanditsrecord-keepingistrivialrecordsofbiologicalsystems.Recordsoftheastronomicaluniverse,despitethefactthatwelearntthingsastheywerelongage,arelimitedintheextreme.Eveninregardtosuchacloseneighborasthemoon,whichwehaveactuallyvisited,theoriesaboutitsoriginandhistoryareextremelydifferent,contradictory,andhardtochoos