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1、GMAT逻辑Arguments入门 如果在gmat备考中CR是你的弱项，无论考GMAT还是LSAT，CR都是关键一项。如何攻克gmat逻辑题是考试成功的一个必要条件。而且掌握了CR，你的英文写作也会变得条理分明，论据充分，结论恰到好处。但我这个系列有个前提：大部分只用英文。因为我的体会是：如果CR想考高分，你就得Read,think,andanalyzeinEnglish. GMAT逻辑入门之Arguments Whatisanargument? Anargumentinlogicisasetofoneormoremeaningfuldec
2、larativesentences(or"propositions")knownasthepremiseswithanothersentenceknownastheconclusion.Therefore,eachargumenthasatleasttwocomponents:1)apieceofevidenceorproposition,officiallycalleda“premise,”and2)aconclusion. Considerthefollowingtwostatements: 1)MingLiissmart. 2)Ming
3、LiwenttoPekingUniversity. Eachstatementbyitselfissimplyaclaimoranassertion.Canyoucombinethemtogethertoformanargument? Oneanswermightbe: MingLiissmartbecausehewenttoPekingUniversity. Theredpartoftheansweristheconclusion;thebluepartoftheansweristhepremise.Thesecolorcodeswill
4、betheconventionIusetolabelpremiseandconclusionthroughouttheseries. Apremisesupportsaconclusion.Mostargumentarenotbullet-proof.Thatis:theevidenceprovideddoesnotPROVEtheconclusionreachedbeyondashaowofadoubt.Apremiseisjustanevidence,onereasontoshedsomepositivelightontheconclusio
5、n,onepieceofinformationwhichmakestheconclusionmorelikely.InCR,allpremisesgiveninthestimulusareconsideredtrue.Intheaboveexample,weshouldnotdoubtwhetherMingwenttoPekingUniversityornot.However,wecananalyzetheargumentbyfocusingonthelogicwhichconnectsthepremiseandtheconclusioninana
6、rgument. Indicators Howtotellwhichstatementisapremiseoraconclusioninanargument?Aquickwayistofindindicatorssuchasbecause,since,for,as,considering,whereas,andonthegroundsthat,whichsignaltothereaderthatapremiseiscoming!Intheexampleabove,MingLiissmartbecausehewenttoPekingUnivers
7、ity,hewenttoPekingUniversityisthepremisesincethisstatementfollowsthewordbecause. Asecondwaytoformanargumentusingexactlythesamestatementsis: BecauseMingLiissmart,hewenttoPekingUniversity. Thisisatotallydifferentargumentfromthefirstoneinthatthepremiseandtheconclusionswitchthe
8、irplaces.MingLiissmartisnowthepremise. Thesetwoexamplesshowt
