资源描述:
《gre写作6分issue范文分类示范》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、第一类题材StudyIssue183"Asweacquiremoreknowledge,thingsdonotbecomemorecomprehensible,butmorecomplexandmoremysterious."Doesknowledgerenderthingsmorecomprehensible,ormorecomplexandmysterious?Inmyviewtheacquisitionofknowledgebringsaboutallthreeatthesametime.Thisparadoxicalresultisaptlyexplainedandillus
2、tratedbyanumberofadvancesinourscientificknowledge.Consider,forexample,thesonarsystemonwhichblindbatsrelytonavigateandespeciallytoseekprey.Researchershavelearnedthatthissystemisstartlinglysophisticated.Byemittingaudiblesounds,thenprocessingthereturningechoes,abatcandetermineinananosecondnotonlyh
3、owfarawayitsmovingpreyisbutalsotheprey'sspeed,direction,sizeandevenspecie!Thisknowledgeacquiredhelpsexplain,ofcourse,howbatsnavigateandsurvive.Yetatthesametimethisknowledgepointsouttheincrediblecomplexityoftheauditoryandbrainfunctionsofcertainanimals,evenofmerehumans,andcreatesacertainmysteryan
4、dwonderabouthowsuchsystemseverevolvedorganically.Orconsiderourknowledgeoftheuniverse.Advancesintelescopeandspace-explorationtechnologyseemtocorroboratethetheoryofacontinuallyexpandinguniversethatbeganattheverybeginningoftimewitha"bigbang."Ononelevelthisknowledge,assumingitqualifiesassuch,helpsu
5、scomprehendourplaceintheuniverseandourultimatedestiny.Yetontheotherhanditaddsyetanotherchaptertothemysteryaboutwhatexistedbeforetimeandtheuniverse.Orconsidertheareaofatomicphysics.Thenakedhumaneyeperceivesverylittle,ofcourse,ofthecomplexityofmatter.Toourdistantancestorsthephysicalworldappeareds
6、imple--seeminglycomprehensiblebymeansofsightandtouch.Thenbywayofscientificknowledgewelearnedthatallmatteriscomprisedofatoms,whicharefurthercomprisedofprotons,neutrons,andelectrons.Thenwediscoveredanevenmorebasicunitofmattercalledthequark.Andnowanewso-called"string"theorypositstheexistenceofanev
7、enmorefundamental,anduniversal,unitofmatter.Ontheonehand,thesediscoverieshaverenderedthingsmorecomprehensible,byexplainingandreconcilingempiricalobservationsofhowmatterbehaves.Thestringtheoryalsoreconcilesthediscrepancybetweentheq