GMAT语法的知识点可能还会考察一些比较细节的知识点，比如连词，标点和量词。这几个小知识点也是大部分考生容易忽略的。其实连词可以帮助我们分析句子的逻辑结构，标点可以有助于句子的修饰成分分析，量词也会被分为修饰可数名词和不可数名词之分。本文就给大家介绍下GMAT句子改错之连词，标点和量词考点解析。
一、连词：并列连词与从属连词。
1、并列连词：For，and,nor,but,or,yet,so
and是最重要的平行连词,在GMAT考试中,当我们遇到and的时候,考虑到两种可能,一种是”平行结构”,一种是”平行连词连接主句”,GMAT经常会把二者混用,把一个主句和句子的一部分连接起来,这就错误的要注意.
2、从属连词：although，because，before，after，since，when,if,unless,that,though,while.
从属连词引导一个从属句,必须要依附一个主句,中间用逗号隔开
例1：
The term”Eureka”.meaning “I have found it”in ancient Greek and famously uttered by Archimedes ,and ever since then,scientists have exclaimed the same word upon making important discoveries.
改成：
The term”Eureka”.meaning “I have found it”in ancient Greek ,was famously uttered by Archimedes,and ever since then,scientists have exclaimed the same word upon making important discoveries.
注意：主谓结构和主谓结构两个句子平行。
例2：
She is not interested in sports ,and she likes watching them on TV.
逻辑意思错误
改成1：She is not interested in sports ,BUT she likes watching them on TV.
(转折关系)
改成2：
Although she is not interested in sports ,she likes watching them on TV.
(让步从句，也表示转折关系)
例3:Although I need to relax ,yet I have so many things to do.
改成1：Although I need to relax ,I have so many things to do.
改成2：I need to relax ,yet I have so many things to do.
总结：连词的使用必须符合逻辑意思，一次只能出现一个连词，不能同时使用两个连词。
例4：
Citizens of many countries are expressing concern about the environmental damage caused by the widespread release of greenhouse gases may be impossible to reverse.这句话的主句应该是” Citizens of many countries are expressing concern about the environmental damage caused by the widespread release of greenhouse gases”但后面的may be 却是个没有主语的谓语动词,看似它的主语应该是environmental gases,但它不能即作宾语又做主语,因此这里要加上that,让后面的部分变为一个从属句,
改成 ：Citizens of many countries are expressing concern that the environmental damage caused by the widespread release of greenhouse gases may be impossible to reverse.
二、标点：逗号，分号，冒号，破折号。
1、逗号使用方法：
当同一个主语发出两个动作，用and不用逗号，如果有逗号，修改方法有两种：
1)把逗号去掉;
2)给第二个句子添加主语。
eg:Earl walked to school,and later ate his lunch.错误,应为Earl walked to school and later ate his lunch.或者改为Earl walked to school ，and he later ate his lunch.
注意：逗号本身不能连接两个完整的句子，需要一个连词连接。
2、分号使用方法：
1)分号能够在没有连词的情况下连接两个意义相关但又独立完整的句子。分号连接两个联系紧密的句子,但两个句子必须都可以独立成句。
例1：Earl walked to school ; he later ate his lunch.(正确)
例2：Andrew and Lisa are inseparable;doing everything together(错误)
修改：Andrew and Lisa are inseparable;they do everything together.
2)如果原句的意思是从属关系的那么即使两个句子各有主谓也不能用分号,而应用逗号加从属连词。
例：The dam has created dead zones,where fish have disappeared正确,但如果改为The dam has created dead zones;fish have disappeared.虽然两个句子都可独立成句,但用分号就改变了句子的意思,所以错误。
3)分号后通常会出现连接副词或其他过渡表达如however,therefore,in addition等，有助于句意理解，但这些成分单独不能连接两个完整的句子。
例:Andrew and Lisa are inseparable,therefore,we never see them apart.错误,
应改为:Andrew and Lisa are inseparable;therefore,we never see them apart.
4)分号还有一种很少见的用法是：用来分割已经含有逗号的元素.
3、冒号使用方法:
1)冒号对前面提出的信息起到进一步解释说明的作用，冒号钱的句子一定要完整，冒号后的不要求。
例：I listening to:classical,rock,rap,and pop music.错误,
修改：I love listening to many kinds of music:classical,rock,rap,and pop.正确
2)冒号要尽量可能靠近所解释的对象。
4、破折号的用法很灵活，可以作为逗号，分号或者冒号来使用。有时候破折号甚至还会更好一些，破折号可以用来分开解释成分，而且不必紧靠解释对象。
三、量词：修饰可数名词与不可数名词;单位词;between和among。
修饰可数名词：many,few(fewer,fewest),number of,numerous.
修饰不可数名词：much,little(less,least),
修饰可数或不可数名词：more，most，enough，all.
单位词如dollars，gallons本来为可数名词，但常代表不可数名词money，volume，这时可用less来修饰单位词。Eg：We have less than twenty dollars.
注意用于表述两者关系或三者及三者以上关系的词。比较级只能比较两者关系，比较三者及三者以上关系时，要用最高级。Between只能用于两者，而among用于三者或三者以上。
以上就是小编为大家整理的关于GMAT句子改错之连词，标点和量词考点解析的内容介绍，小伙伴们知道了吗? 希望对考生有帮助，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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