为大家带来的常见错误，希望对大家GMAT备考有所帮助。GMAT语法错误一致性问题 代词必须和前面的指代内容保持单复数，性别上的一致 指代对象是单数，单词是单数; 指代对象是复数，代词也是复数。
　　GMAT语法错误1) The Glass House Mountains in Queensland, Australia, were sighted in 1770 by the English navigator Captain James Cook, by whom they were named supposedlybecause its sheer wet rocks glistened like glass. ① who so named them supposedly because their ② who so named it since supposedly their 答案是A 一个什么样的山(mountain),别人用他命名。。。。这里的it,或者them指代前面的mountains。所以要要复数them，而不能b中单数谓语it。
　　GMAT语法错误2) 指代的逻辑语义
　　① 指代内容必须存在，且以名词的形式出现 The park rangers discussed measures to prevent severe wildfires, which would be devastating to it. 这里的park充当的是形容词;所以不能做IT的先行词;应把句子改成The rangers discussed measures to prevent severe wildfires, which would be devastating to the park. The energy source on Voyager 2 is not a nuclear reactor, in which atoms are actively broken apart;rather a kind of nuclear battery that uses natural radioactive decay to produce power. (A) apart, but rather (B) apart; it is that of A 正确;B的话， that of没有指代对象
　　② 代词不能指代出现在前面介词短语中的名词 Laos has a land area about the same as Great Britainbut only four million in population, where many are members of hill tribes ensconced in the virtually inaccessible mountain valleys of the north.
　　③ 同一句话中相同的代词必须指代相同的事物 As a baby emerges from the darkness of the wombwith a rudimentary sense of vision, it would be ratedabout 20/500, orlegally blind if it were an adult withsuch vision. a. A baby emerges from the darkness of the womb with a rudimentary sense of vision that would be rated about 20/500; an adult with such vision would be deemed legally blind. b. As a baby emerges from the darkness of the womb with a rudimentary sense of vision, it would be rated about 20/500, or legally blind if it were an adult with such vision. A 正确; B的话，两个it并没有一个明确的指代，而且先行词有两个;所以会造成语义指代歧义的可能
　　④ 因为比较结构比较对象的一致性，有时用that of 指代前文出现的对象 Laos has a land area about the same as Great Britainbut only four million in population, where many are members of hill tribes ensconced in the virtually inaccessible mountain valleys of the north. a. about the same as Great Britain but only four million in population, where many b. comparable to that of Great Britain but a population of only four million people, many of whom B中that of正确;土地和土地比; A中土地和国家比 that或those表明新copy的时候一定前后完全一致(包括单复数)，否则需要重复先行词。 EG：Her company is outperforming those of her compes.错，those与company不一致，应将those替换为companies.
　　GMAT语法错误3)指代清晰性：
　　①每一个代词都只能有一个清晰的先行词 每一个代词必须清楚指带的一个指代对象 Researchers claim to have developed new Nano papers incorporating tiny cellulose fibers, which they allege give them the strength of cast iron. 从逻辑语意上说：they指代 Researchers ;them 指代 Nano Papers 但是从实际语法上来说 they和them可以同时指代Researchers或者Papers Researchers claim to have developed new nano papers incorporating tiny cellulose fibers, which allegedly give these materials the strength of cast iron.
　　②按照逻辑意思指代 For the first time in the modern era, non-Hispanic Whites are officially a minority in California, which amounts to a little less than half the population of the state, down from nearly there-quarters only a decade ago. A. which amounts to a little less than half the population of the state, down from nearly three-quarters only a decade ago B. amounting to a little less than half the population of the state, down from nearly three-quarters a decade ago B 正确;A的话就近指代California; 但是amounting这里指的是non-Hispanic white
　　③ 代词一般指代离其近的名词，但不能过于近了 EG： In the station house，it is considered taboo it不能指代station house。