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1、TheOfficialGuideforGMAT*Review13thEdition1.Inareviewof2,000studiesofhumanbehaviorthatdatebacktothe1940s,twoSwisspsychologists,declaringthatsincemostofthestudieshadfailedtocontrolforsuchvariablesassocialclassandfamilysize,nonecouldbetakenseriously.(A)psychologists,declaringthatsin
2、cemostofthestudieshadfailedtocontrolforsuchvariablesassocialclassandfamilysize,(B)psychologists,declaringthatmostofthestudiesfailedinnotcontrollingforsuchvariableslikesocialclassandfamilysize,and(C)psychologistsdeclaredthatsincemostofthestudies,havingfailedtocontrolforsuchvariabl
3、esassocialclassandfamilysize,(D)psychologistsdeclaredthatsincemostofthestudiesfailincontrollingforsuchvariableslikesocialclassandfamilysize,(E)psychologistsdeclaredthatsincemostofthestudieshadfailedtocontrolforvariablessuchassocialclassandfamilysize,1.分词的不正确使用导致句子碎片2.时态不一致3.suchl
4、ike搭配错误4.failtodo为正确搭配,failindoing好像没见过,在目前看到过的fail搭配中，只有failtodo和sthfail两种搭配5.表示举例用suchas2.Manufacturersratebatteriesinwatt-hours;iftheyratethewatt-hourhigher,thelongerthebatterycanbeexpectedtolast.(A)iftheyratethewatt-hourhigher,thelonger(B)ratingthewatt-hourhigher,itisthatmuch
5、longer(C)thehigherthewatt-hourrating,thelonger(D)thehigherthewatt-hourrating,itisthatmuchlongerthat(E)whenthewatt-hourratingishigher,thelongeritis3.Althoughasurgeinretailsaleshaveraisedhopesthatthereisarecoveryfinallyunderway,manyeconomistssaythatwithoutalargeamountofspendingther
6、ecoverymightnotlast.(A)haveraisedhopesthatthereisarecoveryfinally(B)raisedhopesfortherebeingarecoveryfinally(C)hadraisedhopesforarecoveryfinallybeing(D)hasraisedhopesthatarecoveryisfinally(E)raisedhopesforarecoveryfinally1.主谓单复数(杀伤力最强)，注意倒装形式中的主谓搭配（fromwhichderivesbothAandB，错误，因为
7、AandB，谓语用复数）2.therebe是一种冗余的结构3.being出现基本不正确，但有例外4.raised的过去时用法是正确的，但用现在完成时更好，表示持续到现在5.过去完成时的用法就不对了，没有过去的时间点。6.hopeforsthorhopethat……原文更想表达的是“复苏已经开始”的希望，所以不是单单对某种事物的希望。用后一种比较好。这个原理好像就是“事物”“事物的变化”这两个概念的区别，很多时候我们要的是“事物在变化”，而不仅仅是“事物”。这个逻辑考察点在GMAT中也比较常考到。4.Attheendofthe1930s,DukeEllin
8、gtonwaslookingforacomposertoassisthim—so
