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2019年GMAT官方指南(OG)解析:平行结构(二)

2018-08-09 15:32:00来源:新东方

  解析:这道题的句意并不难理解,描述的是" 从地球到火星需要经历的几个方面,包括:忍受失重,躲避大量的辐射,忍受化学发应和躲避污染 ",所以根据这一点就可以看出BDE 中的endure/avoid/contend /ward off的几个动作是平行的,可以排除AC;有同学会产生疑问:为什么不能是doing 的形式呢?细心的同学可以看到未画线的" ward off "。这个词已经限制了其他的词也需要用动词原形而不是doing的形式,所以GMAC很喜欢设置这样的陷阱,所以大家在接下来的练习中一定要注意。

  BDE中通过对比可以发现,区别点在于前面的" would haveto " " having to " "who would haveto "的区别。老师在上课的时候一直强调的一个点就是" 分析句子结构 ",所谓的" 句子结构 "就是" 主谓要完整 ",所以很明显DE中是缺少谓语动词的。

  再来练习一道题:

  763、Positing an enormous volcanic explosion at the end of the Permian period would explain the presence of a buried crater, account for the presence of the element iridium (originating deep within the earth), and the presence of quartz having been shattered by high-impact shock waves.

  A. account for the presence of the element iridium (originating deep within the earth), and the presence of quartz having been

  B. of the element iridium (originating deep within the earth), and of quartz

  C. the element iridium (originating deep within the earth), and explain the presence of quartz having been

  D the presence of the element iridium (originating deep within the earth), and explain presence of quartz

  E. explain the element iridium (originating deep within the earth), and the presence of quartz

  答案:B

  A. account for the presence of the element iridium (originating deep within the earth), and the presence of quartz having been

  B. of the element iridium (originating deep within the earth), and of quartz

  C. the element iridium (originating deep within the earth), and explain the presence of quartz having been

  D. the presence of the element iridium (originating deep within the earth), and explain presence of quartz

  E. explain the element iridium (originating deep within the earth), and the presence of quartz

  这道题和上一题非常相似,描述的是" 火山喷发解释了a buried crater, element iridium,quartz的出现 "所以三者应该是平行关系。这道题米很容易出错是因为,很多同学没有看到未画线的“explain”这个词,所以会误选其他的选项;通过选项的对比 ACDE都是把动词" explain " 和名词" the presence of " 平行,只有B中" of…, of… and of…"平行共用" explain "。

  我们来看一道考察句意平行题目:

  In 2000, a mere two dozen products accounted for half the increase in spending on prescription drugs, a phenomenon that is explained not just because of more expensive drugs but by the fact that doctors are writing many more prescriptions for higher-cost drugs.

  A. a phenomenon that is explained not just because of more expensive drugs but by the fact that doctors are writing

  B. a phenomenon that is explained not just by the fact that drugs are becoming more expensive but also by the fact that doctors are writing

  C. a phenomenon occurring not just because of drugs that are becoming more expensive but because of doctors having also written

  D. which occurred not just because drugs are becoming more expensive but doctors are also writing

  E. which occurred not just because of more expensive drugs but because doctors have also written

  答案:B

  A. a phenomenon that is explained not just because of more expensive drugs but by the fact that doctors are writing

  B. a phenomenon that is explained not just by the fact that drugs are becoming more expensive but also by the fact that doctors are writing

  C. a phenomenon occurring not just because of drugs that are becoming more expensive but because of doctors having also written

  D. which occurred not just because drugs are becoming more expensive but doctors are also writing

  E. which occurred not just because of more expensive drugs but because doctors have also written

  我们可以通过not just…but also平行排除ADE剩下 BC选项,这两个选项一般会有学生纠结很久,整体来看两个都是很平行的,所以这样的情况下我们就需要通过对比两个选项的差异点:B选项中是平行的" by the fact ",C平行是" because of ",那这样不同形式的平行导致了意思方面出现的问题。B表达的意思是“药变得贵了和医生开了贵的药两个事实导致了前面的现象”,C表达的意思是“药和医生导致了前面的现象”,所以很明显前者的意思才是合理的。

  以上就为大家整理的“2019年GMAT官方指南(OG)解析:平行结构(二)”,更多精彩内容,请关注新东方在线GMAT频道。


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