资源描述：
《gre写作6分issue范文》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、第一类题材StudyIssue183"Asweacquiremoreknowledge,thingsdonotbecomemorecomprehensible,butmorecomplexandmoremysterious."Doesknowledgerenderthingsmorecomprehensible,ormorecomplexandmysterious?Inmyviewtheacquisitionofknowledgebringsaboutallthreeatthesametime.Thisparadoxicalresultisaptlyexplainedandillustrate
2、dbyanumberofadvancesinourscientificknowledge.Consider,forexample,thesonarsystemonwhichblindbatsrelytonavigateandespeciallytoseekprey.Researchershavelearnedthatthissystemisstartlinglysophisticated.Byemittingaudiblesounds,thenprocessingthereturningechoes,abatcandetermineinananosecondnotonlyhowfarawayi
3、tsmovingpreyisbutalsotheprey'sspeed,direction,sizeandevenspecie!Thisknowledgeacquiredhelpsexplain,ofcourse,howbatsnavigateandsurvive.Yetatthesametimethisknowledgepointsouttheincrediblecomplexityoftheauditoryandbrainfunctionsofcertainanimals,evenofmerehumans,andcreatesacertainmysteryandwonderabouthow
4、suchsystemseverevolvedorganically.Orconsiderourknowledgeoftheuniverse.Advancesintelescopeandspace-explorationtechnologyseemtocorroboratethetheoryofacontinuallyexpandinguniversethatbeganattheverybeginningoftimewitha"bigbang."Ononelevelthisknowledge,assumingitqualifiesassuch,helpsuscomprehendourplacei
5、ntheuniverseandourultimatedestiny.Yetontheotherhanditaddsyetanotherchaptertothemysteryaboutwhatexistedbeforetimeandtheuniverse.Orconsidertheareaofatomicphysics.Thenakedhumaneyeperceivesverylittle,ofcourse,ofthecomplexityofmatter.Toourdistantancestorsthephysicalworldappearedsimple--seeminglycomprehen
6、siblebymeansofsightandtouch.Thenbywayofscientificknowledgewelearnedthatallmatteriscomprisedofatoms,whicharefurthercomprisedofprotons,neutrons,andelectrons.Thenwediscoveredanevenmorebasicunitofmattercalledthequark.Andnowanewso-called"string"theorypositstheexistenceofanevenmorefundamental,anduniversal
7、,unitofmatter.Ontheonehand,thesediscoverieshaverenderedthingsmorecomprehensible,byexplainingandreconcilingempiricalobservationsofhowmatterbehaves.Thestringtheoryalsoreconcilesthediscrepancybetweentheq
