prep cr 重点题 v2

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1、PREPCR高分错题宗旨：仔细审问题、明确问题/argument中的逻辑对象和相关逻辑链、万能的排除法。削弱题weaken96.(28176-!-item-!-188;#058&002907)(GWD-28-Q17)InthenationofPartoria,largetruckscurrentlyaccountfor6percentofmilesdrivenonPartoria’sroadsbutareinvolvedin12percentofallhighwayfatalities.Theverylargesttrucks—thosewiththreetrailers—hadless

2、thanathirdoftheaccidentrateofsingle-anddouble-trailertrucks.Clearly,therefore,onewayforPartoriatoreducehighwaydeathswouldbetorequireshipperstoincreasetheiruseoftriple-trailertrucks.Whichofthefollowing,iftrue,mostseriouslyweakenstheargument?A.NomatterwhatchangesPartoriamakesintheregulationoftrucki

3、ng,itwillhavetokeepsomesmallerroadsoff-limitstoalllargetrucks.B.Sofaronlythebest,mostexperienceddriversforPartoriantruckingcompanieshavebeendrivingtriple-trailertrucks.C.VeryfewfatalcollisionsinvolvingtrucksinPartoriaarecollisionsbetweentwotrucks.D.InPartoria,thesafetyrecordofthetruckingindustrya

4、sawholehasimprovedslightlyoverthepasttenyears.E.InPartoria,themaximumlegalpayloadofatriple-trailertruckislessthanthreetimesthemaximumlegalpayloadofthelargestofthesingle-trailertrucks.Key:B考点：他因削弱。（简单，易掌握）选项B得出：并非车子种类不同导致collision的多少，而是司机出色、有经验。使得支撑结论的数字例子不具代表性。100.(31888-!-item-!-188;#058&006228)

5、(GWD3-Q17)Brochure:Helpconserveourcity’swatersupply.Byconvertingthelandscapinginyouryardtoawater-conservinglandscape,youcangreatlyreduceyouroutdoorwateruse.Awater-conservinglandscapeisnaturalandattractive,anditalsosavesyoumoney.Criticism:Formostpeoplewithyards,thesavingsfromconvertingtoawater-con

6、servinglandscapecannotjustifytheexpenseofnewlandscaping,sincetypicallytheconversionwouldsavelessthantwentydollarsonahomeowner’syearlywaterbills.Whichofthefollowing,iftrue,providesthebestbasisforarebuttalofthecriticism?A.Evenhomeownerswhoseyardsdonothavewater-conservinglandscapescanconservewaterby

7、installingwater-savingdevicesintheirhomes.B.Aconventionallandscapegenerallyrequiresamuchgreaterexpenditureonfertilizerandherbicidethandoesawater-conservinglandscape.C.Asignificantproportionoftheresidentsofthecitylivein