新东方张海霞：13版GMAT OG语法攻略

　　文/北京新东方学校GMAT语法教师 张海霞

　　总体上说，13版OG并没有太大的变化。

　　Sample Question部分仍旧为140道题目，其中25道题是新增添的，剩下部分都与12版OG一样。

　　新题题号：1, 2, 4, 7, 9, 15, 19, 26, 35, 38, 40, 48, 56, 65, 68, 71, 74, 79, 87, 97, 107, 111, 114, 132, 138。

　　就考察知识点而言，也并没有明显难度变化。平行、代词、修饰语、动词、比较仍旧是较为重要的考点。

　　主谓一致：7

　　=>考点清晰，结合其它知识点。

　　平行结构：4, 15, 38, 56, 74, 79, 87, 138

　　=>考点清晰，有部分题目结合了2个或以上知识点。句子长度难度整体没有变化。

　　代词：111, 114

　　=>主要考察指代不清、单复数的问题。句子长度、结构都略为变长。

　　修饰语：1, 19, 35, 48, 65, 68, 132

　　=> 完整性、同位语、句式结构、分词作状语等都作为主要考察修饰语的问题。句子长度略为有所增长。

　　动词：40, 71

　　=>虚拟语气、时态的比较。

　　比较：9, 107

　　=> 比较的用词区别;句子长度变长。

　　标点：2, 26, 97

　　=>主要考察分号在标准书面英语的用法。

　　与12版OG相比，难度上并没有明显变化。删除了12版OG里几道题干简单、考点很难的题目，增添的题目主要表现为句子变长、句式复杂、划线部分略长的特点。考点相对于12版持平，考点清晰，呈现出一个题结合多个知识点的特点。所以对于考生而言，牢牢掌握基本知识点成为复习的关键。考生们可以按照原有的复习计划进行复习。

　　[样题分析]

　　In a review of 2,000 studies of human behavior that date back to the 1940s, two Swiss psychologists, declaring that since most of the studies had failed to control for such variables as social class and family size, none could be taken seriously.

　　(A) psychologists, declaring that since most of the studies had failed to control for such variables as social class and family size,

　　(B) psychologists, declaring that most of the studies failed in not controlling for such variables like social class and family size, and

　　(C) psychologists declared that since most of the studies, having failed to control for such variables as social class and family size,

　　(D) psychologists declared that since most of the studies fail in controlling for such variables like social class and family size,

　　(E) psychologists declared that since most of the studies had failed to control for variables such as social class and family size,