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，我们接着介绍第二部分。
例3：
A surge in new home sales and a drop in weekly unemployment claims suggest that the economy might not be as weak as some analysts previously thought.
A claims suggest that the economy might not be as weak as some analysts previously thought
B claims suggests that the economy might not be so weak as some analysts have previously thought
C claims suggest that the economy might not be as weak as have been previously thought by some analysts
D claims, suggesting about the economy that it might not be so weak as previously thought by some analysts
E claims, suggesting the economy might not be as weak as previously thought to be by some analysts
分析：
A surge是句子主语，in new home sales介词短语作定语，同理and后面还有一个名词a drop ，要注意这里介词不分并列，介词习惯补出，因为补出以后才不会有任何的歧义，所以这里a drop是和 A surge 并列。in weekly unemployment claims介词短语充当的是a drop的定语，suggest是谓语，之后跟的一个that，很明显就是宾语从句的关系词that，
我们看一下五个选项，刚才说句子的主语其实是A surge and a drop,所以是个复数形式，所以选项当中是单数的谓语一律排除，比如B。当然D和E也是不可以的，因为句子当中明明缺的是谓语动词，这两个选项当中用的都是非谓语，很明显是不正确的，所以就剩下A和C选项。C选项当中有个previously这个时间状语的提示，应该使用过去时态，所以C选项的现在完成时态是现在时态的范畴是错误的。
正确句子：
A surge in new home sales and a drop in weekly unemployment claims suggest that the economy might not be as weak as some analysts previously thought.
验证：
A surge and a drop是主语，suggest 是谓语，后面是that引导的宾语从句，从句当中的主语是economy ，analysts previously thought这部分就是比较的对象，因为previously有这个标志词，所以句子使用过去时态。
例4：
Paleontologists believe that fragments of a primate jawbone unearthed in Burma and estimated at 40 to 44 million years old provide evidence of a crucial step along the evolutionary path that led to human beings.
A at 40 to 44 million years old provide evidence of
B as being 40 to 44 million years old provides evidence of
C that it is 40 to 44 million years old provides evidence of what was
D to be 40 to 44 million years old provide evidence of
E as 40 to 44 million years old provides evidence of what was
分析：
划线部分在从句当中，Paleontologists believe是主句的内容，后面是 that 引导的宾语从句，fragments 是宾语从句主语，unearthed and estimated 是两个动词的ed形式作定语修饰的是 jawbone，所以很明显provide 是谓语没问题。我们看五个选项的分析，其中BC和E谓语动词是单数形式，所以排除。剩下D和A的区别，A选项用的是at，D选项用的是to be,这时候就需要用到平时积累的习语来解决这个问题。Estimate有两种用法，一种是estimate something to be+时间。还有一种是estimate something at+价格。因为句子中后面跟的是 40 to 44 million years 是时间，所以应该是to be.正确答案应该是D.
正确句子：
Paleontologists believe that fragments of a primate jawbone unearthed in Burma and estimated to be 40 to 44 million years old provide evidence of a crucial step along the evolutionary path that led to human beings.
验证：
Paleontologists believe 是主句，宾语从句关系词是that，从句主语是 fragments，谓语是provide， evidence是宾语，that led to human beings这个是that引导的定语从句。我们判断定语从句和其他名词性从句的区别就是看that是否充当成分，这里that充当的是led to 的主语。
》》点击了解GMAT语法主谓一致真题解析(一)
》》点击了解GMAT语法主谓一致真题解析(三)
》》点击了解GMAT语法主谓一致真题解析(四)
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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