在GMAT语法考试中，主谓一致基本在每个试题中都会出现，判断主谓一致还能为分析好句子结构有帮助。本文就给大家介绍下GMAT句子改错之主谓一致的考试内容。我们常说谓语划线找主语，主谓一致看状语。那么打底是怎么判断主谓一致呢?本文就给大家介绍下GMAT语法主谓一致真题解析，由于文章篇幅较多，我们先介绍第一部分。
例1: Although a surge in retail sales have raised hopes that there is a recovery finally under way, many economists say that without a large amount of spending the recovery might not last.
A have raised hopes that there is a recovery finally
B raised hopes for there being a recovery finally
C had raised hopes for a recovery finally being
D has raised hopes that a recovery is finally
E raised hopes for a recovery finally
分析：
划线部分在从句里，所以要找从句当中的主语，谓语以及宾语，除此之外还要确定句子的时态，Although 引导让步状语从句，从句当中的主语是a surge ，后面的in retail sales是介词短语， have raised是谓语，我们发现句子的时态是现在完成时，想要确定句子的时态是否正确只能根据未划线部分主句的时态。主句当中用的是many economists say that 是一般现在时，那么从句中的现在完成时是可以的。因为我们的现在时态包含现在完成时态以及一般现在时。五个选项可以分成两组，一组是现在时态，一组是过去时态，其中BCE都是用的过去时态，我们刚才根据主句当中的谓语时态是一般现在时，所以这些过去时态的表达是错误的， 剩下的A和D,因为句子的主语是a surge，是个单数岁A选项没有体现主谓一致的单复数，所以正确句子是D选项。
正确句子：
Although a surge in retail sales has raised hopes that a recovery is finally under way, many economists say that without a large amount of spending the recovery might not last.
验证：
a surge 是主语，has raised是谓语，hopes是宾语，that引导同位语从句a recovery is finally under way，关系词that是不能省略的。这是Although 引导的让步状语从句。再来分析主句，主句的主语是many economists ，谓语是say，that后面是宾语从句，宾语从句要有主谓宾，the recovery might not last就是这个句子。宾语从句当中前面还有一个without 引导的介词短语，是虚拟语气的一种形式，所以这个宾语的谓语用的是might ，是虚拟语气的使用，而不是情态助动词的过去形式。
例2： Diabetes, together with its serious complications, ranks as the nation's third leading cause of death, surpassed only by heart disease and cancer.
A ranks as the nation's third leading cause of death, surpassed only
B rank as the nation's third leading cause of death, only surpassed
C has the rank of the nation's third leading cause of death, only surpassed
D are the nation's third leading causes of death, surpassed only
E have been ranked as the nation's third leading causes of death, only surpassed
分析：
Diabetes是句子主语，那么以S结尾的就一定是可数名词的复数形式吗?不是的，比如美国 United States,这就不是一个复数，谓语动词在划线部分用的是ranks，就算我们不知道Diabetes是单数还是复数我们也可以看出来，因为together with its serious complications其中的its 指的就是Diabetes，所以明显主语是单数，其实Diabetes这个词的意思是糖尿病。五个选项中那么谓语动词是复数的那就是错的，那么排除B,D,E.剩下的A和C的差别我们可以发现A选项用的是ranks，C选项用的是the rank of，根据我们的词性选择，动词优越于形容词，形容词优于抽象名词，抽象名词优于动名词。所以A要比C简洁。选择A.
正确句子：
Diabetes, together with its serious complications, ranks as the nation's third leading cause of death, surpassed only by heart disease and cancer.
验证：
Diabetes是句子主语，together with its serious complications前后都是逗号，我们连带前后的逗号以及中间的内容当做插入语，ranks是谓语动词，as the nation's third leading cause of death是宾语，surpassed是动词的ed形式而且表示被动的意思的时候是可以充当定语，所以这里做的是主语的定语。
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以上就是对GMAT语法主谓一致真题解析第一部分的内容介绍，不知道考生通过上文的内容对GMAT语法有了解了吗?更多关于GMAT备考的资讯小编会持续为大家送上，大家也可以关注GMAT官网获取更多备考资讯，祝大家早日梦圆名校。
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