英语中常见的标点符号有逗号(,) 分号(;)冒号(:)破折号(-)句号(.)标点符号的使用是让句子的意思表达更加清楚，今天我们就说一下GMAT语法分号考察的知识点。
一、GMAT语法分号考察的知识点：定义
分号表示的停顿比句号短，比逗号长，主要用来连接2个独立的分句。
二、GMAT语法分号考察的知识点：用法
(1)分号用以连接两个紧密相关的句子，这两个句子又是分别相对完整的句子。(说是“相对”，是因为虽然语法上都能单独成句，但是逻辑意思上第二句单独出来的话就说不通)，比如：Andrew and Lisa are inseparable; they do everything together.
(2)用分号连接的两句应该是独立、平衡的。如果原句有从属关系，那么应该保留。
(3)分号后经常跟一些连接副词(注意这些词不是真正的连词，不能用逗号替代分号)，如however, therefore, in addition.比如：Andrew and Lisa are inseparable; THEREFORE, we never see them apart.这句话是正确的，但是Andrew and Lisa are inseparable, THEREFORE, we never see them apart.这句话就是错了的。
(4)分号还有个主要的用法：用来隔开带逗号的一串名词。比如： I listen to Earth, Wind & Fire; Wow, Owls; and Blood, Sweat & Tears.这句话是正确的，但是I listen to Earth, Wind & Fire, Wow, Owls, and Blood, Sweat & Tears.这句话就是错的。
三、GMAT语法分号考察的知识点：真题
1、According to findings derived from functional magnetic resonance imaging (MRI), the area of the brain in which a second or third language is stored depends on the age of the language learner; whereas each language occupies a distinct area of the brain in an adult learner, language areas overlap in a young child.
A. whereas each language occupies a distinct area of the brain in an adult learner,
B. whereas for adults each language occupies a distinct area of the brain and
C. each language occupies a distinct area of the brain when they are learned by an adult, while
D. each language in adults occupied a distinct area of the brain, while
E. each language occupying a distinct area of the brain for an adult learner, and
翻译：据来自功能磁共振成像(MRI)，第二或第三语言存储的大脑区域根据语言学习者的年龄不同而定，在成年人中，每一种语言占据大脑中的一个位置，在小孩子这里语言区域是有重叠的。
句式：According to...., the area of the brain depends on the age...;whereas each language occupies area, language areas overlap in a young child;
思路：从句子结构上来看，分号是明显的并列关系。那么分号前后的主语一定要构成并列关系。
选项：
A. 正确;
B. 分号后面没有主句;
C. each language...when they, 前后代词指代不一致;
D. each language in adults 语义逻辑表述错误;occupied应该用一般现在时;
E. 分号后面没有主句。
2、According to a recent study of consumer spending on prescription medications, increases in the sales of the 50 drugs that were advertised most heavily accounts for almost half of the $20.8 billion increase in drug spending last year, the remainder of which came from sales of the 9,850 prescription medicines that companies did not advertise or advertised very little.
A. heavily accounts for almost half of the $20.8 billion increase in drug spending year, the remainder of which came.
B. heavily were what accounted for almost half of the $20.8 billion increase in drug spending last year; the remainder of the increase coming.
C. heavily accounted for almost half of the $20.8 billion increase in drug spending last year, the remainder of the increase coming.
D. heavily, accounting for almost half of the $20.8 billion increase in drug spending last year, while the remainder of the increase came.
E. heavily, which accounted for almost half of the $20.8 billion increase in drug spending last year, with the remainder of it coming.
翻译：
根据最近对花钱在处方药上的客户研究，被广告播放最多的50种药的销量占据了大多数，其他的部分都是些没有或者只做一点广告的药品。
句式：
According...., increase () heavily accounted for...; the remainder of the increase coming from....
思路：
两个双方比较，还有account的关系。
选项：
A. increases...accounts主谓单复数不一致;
B. 分号错误，应该连接两个句子，但是B是一个句子和一个短语;what accounted for不简洁;
C. 正确;
D. 没有主句谓语;
E. 没有主句谓语;it指代不清。
》》点击了解GMAT语法标点的考察
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