在AEIS语法考试中经常考的一个考点就是A, B, and C平行结构，几乎每套题都会有这一考点，比如说： not only…but also…,either …or…, neither…nor…, as…as…, not so much …as…,both…and….等等。下面AEIS培训基地小编来为大家详细介绍AEIS语法考试部分之平行结构考点，希望对大家的语法考试有所帮助。

　　AEIS语法平行结构考点有两种基本形式：

　　一：A, B, and C, 可以是词的并列，可以是短语的并列，也可以是句子的并列：

　　Example One:

　　Employees are happier, healthier, and more productive when they work in anenvironment with natural light. (三个形容词的并列)

　　Example Two:Each time Caroline turns on her computers, she has to enter acompany code, then her initials, and a password before she can begin working.(三个名词短语的并列)

　　Example Three:The kids are running, the adolescents are chatting, and theseniors are walking. (三个句子的并列)

　　

 

　　二：A and B，可以是词或者短语的并列，也可以是句子的并列：

　　Example One:

　　Barbers in Europe during the Middle Ages had the special functions ofperforming surgery and pulling teeth. (两个动词短语的并列)

　　Example Two:

　　Tigers and lions may be identical in size, but the tiger is the fierceranimal and the lion is the stronger one.(两个句子的并列)

　　下面小编为大家准备了AEIS语法平行结构考点的六道练习题：

　　1. Yogurt manufacturers, food scientists; and government officials are alsoworking together to develop additional solutions for reusing whey.

　　A. NO CHANGE

　　B. scientists: and

　　C. scientists, and

　　D. scientists, and,

　　答案解析：划线部分有信号词 “and”, 读完句子之后发现主语是三个不同的人群：yogurt manufacturers, foodscientists, and government officials, 恰恰是A，B，and C 的结构，所以答案选C。

　　2. Nutritionists consider Greek yogurt to be a healthy food: it is anexcellent source of calcium and protein, serves as a digestive aid, and itcontains few calories in its unsweetened low-and non-fat forms.

　　A. NO CHANGE

　　B. containing

　　C. contains

　　D. will contain

　　答案解析：划线部分前面有信号词 “and”, 读完句子之后发现“and”前面有两个逗号，秒想到A，B，and C的结构，当看到句子中的“is”and“serves”两个动词的时候，果断选C，正好可以构成三个动词词组的并列。

　　3. As a result, librarians must now be proficient curators of electronicinformation, compiling, catalog, and updating these collections.

　　A. NO CHANGE

　　B. librarians cataloging,

　　C. to catalog,

　　D. cataloging,

　　答案解析：划线部分后面有信号词 “and”, 读完句子之后发现“and”前面有两个逗号，秒想到A，B，and C的结构，当看到句子中的“compiling”and“updating”两个现在分词的时候，果断选D，正好可以构成三个现在分词的并列。

　　4. The couch and chairs, in keeping with the style of the time, arecharacterized by elegantly curved arms and legs, they are covered in luxuriousvelvet.

　　A. NO CHANGE

　　B. legs, the couch and chairs

　　C. legs and

　　D. legs,

　　答案解析：划线部分前面有信号词 “and”, 读完句子之后发现“and”前面的句子的核心成分是“The couch and chairs arecharacterized by elegantly curved arms and legs”，秒想到A and B 的结构，当看到后面句子中的“arecovered”的时候，果断选C，正好可以构成两个被动结构的并列。

　　5. The room is simple but spacious, with a small sink and counter along onewall, a cast-iron wood stove and some hanging pots and pans against anotherwall, and a small table under a window of the third wall.

　　A. NO CHANGE

　　B. a small table is under the third wall’s window.

　　C. the third wall has a window and small table.

　　D. the third wall has a small table against it and a window.

　　答案解析：划线部分前面有信号词 “and”, 读完句子之后发现“and”前面有两个逗号，秒想到A，B，and C 的结构，当看到句子中的“asmall sink and counter along one wall”and“a cast-iron wood stove and somehanging pots and pans against anotherwall”两个结构有共同的特征：名词+介词+名词的时候，果断选A，正好可以构成三个名词复合词组的并列。当然，请注意：镶嵌在第一个短语和第二个短语中的“and”是用来连接名词短语的。

　　6. Studies have shown that employees are happier, healthier, and moreproductive when they work in an environment that affords them adequate amountsof natural light.

　　A. NO CHANGE

　　B. healthy, and more

　　C. healthier, and they are

　　D. healthier, being more

　　答案解析：划线部分有信号词 “and”, 读完句子之后发现表语是三个不同的形容词比较级：happier，healthier, and moreproductive , 恰恰是A，B，and C 的结构，所以答案选A。

　　不管划线部分有“and”，还是划线部分的前面或者后面有“and”， 请同学们对号入座，通过划分句子成分，快速断句，确定是A，B，and C考点还是Aand B考点。