gmat考试写作指导argument范文四八-英语考试-gmat考试

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1、GMAT考试写作指导：Argument范文四八更多英语考试-GMAT考试-请点击这里获得22.       Theconclusioninthisargumentisthatincreasedvigilancebydrugenforcementauthoritieshasresultedinanincreaseintheillegaluseofcocaine.Theauthorreachesthisconclusiononthegroundsthatdrugtraffickershaverespondedtoincreasedenforcementeffort

2、sbyswitchingfrombulkierandriskierdrugstococaine.Presumably,theauthor'sreasoningisthattheincreasedenforcementeffortsinadvertentlybroughtaboutanincreaseinthesupplyofcocainewhich,inturn,broughtabouttheobservedincreaseintheillegaluseofcocaine.Thislineofreasoningisproblematicintwoimporta

3、ntrespects.     Inthefirstplace,theauthorhasengagedin"afterthis,thereforebecauseofthis"reasoning.Theonlyreasonofferedforbelievingthattheincreasedvigilancecausedtheincreaseincocaineuseisthefactthattheformerprecededthelatter.Noadditionalevidencelinkingthetwoeventsisofferedintheargumen

4、t,thusleavingopenthepossibilitythatthetwoeventsarenotcausallyrelatedbutmerelycorrelated.Thisinturnleavesopenthepossibilitythatfactorsotherthantheonecitedareresponsiblefortheincreaseincocaineuse.     Inthesecondplace,theauthorassumesthatanincreaseinthesupplyofcocaineissufficienttobri

5、ngaboutanincreaseinitsuse.Whilethisisatemptingassumption,itisaproblematicone.Thepresumptionrequiredtosubstantiatethisviewisthatdrugusersarenotparticularaboutwhichdrugstheyuse,sothatifmarijuanaandheroinarenotavailable,theywillswitchtowhateverdrugisavailable—cocaineinthiscase.Theassum

6、ptiondoesnotseemreasonableonitsface.Marijuana,heroin,andcocainearenotalikeintheireffectsonusers;noraretheyalikeinthemannerinwhichtheyareingestedorintheiraddictiveproperties.Theviewthatdrugusers'choiceofdrugsissimplyafunctionofsupplyoverlookstheseimportantdifferences.     Inconclusio

7、n,theauthorhasfailedtoestablishacausallinkbetweenincreasedenforcementeffortsandtheobservedincreaseinillegalcocaineuse.Whiletheenforcementactivitiesmayhavebeenacontributingfactor,toshowaclearcausalconnectiontheauthormustexamineandruleoutvariousotherfactors.本文章由谷友网http://www.xntyw.com

8、/收集整理