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时间:2018-07-22
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1、新东方在线[www.koolearn.com]网络课堂电子教材系列GMAT逻辑讲义GMAT逻辑讲义主讲:费允杰欢迎使用新东方在线电子教材第一章做题步骤一、先读问题 二、再读文章 三、再看选项第二章五大题型一、归纳题 公共元素直推法。ifAthenB表示A充分的推出B(A→B);onlyifAthenB表示只有A才有B(B→A);规则:和onlyif最接近的元素一定是必要条件,是箭头所指方向。byAinordertoB表示A推出B(A→B);mustbyAinordertoB表示B推出A(B→A);规则:和must最接近的元素一定是必要条件,是箭头所指方向。IfonlyA,thenB表示只有
2、A才有B(A→B);NotA,unlessB表示没有A除非有B(A→B);A,unlessB表示非B推出A或者非A推出B(→A,→B);ArequireB表示B是A的必要条件(A→B);AisnecessarytoB表示A是B成立的必需(B→A);Adepend/draw/baseonB表示B是A成立的必需(A→B)。5新东方在线[www.koolearn.com]网络课堂电子教材系列GMAT逻辑讲义例1.所有的人都去了。我是人。公共信息:人直接推结论:我去了。例2.Tobementallyhealthy,peoplemusthaveself-respect.Peoplecanmaintain
3、self-respectonlybycontinuallyearningtherespectofotherstheyesteem.Theycanearnthisrespectonlybytreatingtheseothersmorally.Whichofthefollowingconclusionscanbeproperlydrawnfromthestatementsabove?(A)Peoplewhoarementallyhealthywillbetreatedmorallybyothers.(B)Peoplewhoarementallyhealthywillhavetreatedmoral
4、lythosetheyesteem.(C)Peoplewhoarementallyhealthymusthaveself-respectinothertobetreatedmorallybyothers.(D)Peoplecanexpecttobetreatedmorallybyothersonlyiftheyesteemtheseothers.(E)Peoplewhohaveself-respectseldomtreatmorallythoseesteem.例3.Mosttelevisionviewersestimatehowfrequentlyaparticulartypeofaccide
5、ntorcrimeoccursbyhowextensivelyitisdiscussedontelevisionnewsshows.Televisionnewsshowsreportmoreonstoriesthatincludedramaticpicturessuchasfiresandmotorvehicleaccidentsthantheydoonmorecommonstoriesthathavelittlevisualdramasuchasbookkeepingfraud.Ifthestatementsabovearetrue,itcanbeproperlyconcludedthatw
6、hichofthefollowingisalsotrue?(A)Thetimetelevisionnewsreportersspendresearchingnewsstoriesisdirectlyrelatedtothenumberofviewerswhowillbeaffectedbyeventslikethoseinthenewsstories.(B)Itiseasierforcrimessuchasbookkeepingfraudtogounprosecutedthanitiscrimessuchasarson.(C)Thenumberoffiresandmotorvehicleacc
7、identsgreatlyincreasesaftereachtelevisionnewsshowthatincludesdramaticpicturesofafireormotorvehicleaccident.(D)Viewersoftelevisionnewsshowtendtooverestimatethenumberoffiresandmotorvehicleaccidentsthato
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