平行结构就是要求句子当中，可比较的句子成分(Comparable sentence parts)必须在结构上和逻辑上相似。常见标志词有 rather than/ not...but rather…/ as well as/ not only…but also/ from…to, either…or, neither…nor/between…and/ both...and/ not…but/ Be likely to do A, and be unable to do B/宾语从句并列,连词that不能省略:verb + that..., that... and that...…今天我们就来讲解几道prep-07-1部分的GMAT语法平行并列练习题(二)。
例：
Ancient hunter-gatherers developed instincts that stigmatized selfishness, and voluntary cooperation was encouraged as well, whether it be within the group or also with outsiders.
(A) selfishness, and voluntary cooperation was encouraged as well, whether it be within the group or
(B) selfishness, encouraging voluntary cooperation as well, both within the group but
(C) selfishness and also encouraging voluntary cooperation, within the group and
(D) selfishness and they encouraged voluntary cooperation, whether it be within the group or
(E) selfishness and encouraged voluntary cooperation, not only within the group but
答案解析：
(A) 使用被动语态(was encouraged…),增加句子的复杂性;whether开头的结构笨拙复杂,且it没有可以指代的对象.
(B) –ing结构encouraging…作为stigmatized selfness的伴随成分,而从句子的逻辑意思上看,该成应该跟stigmatized并列;both…but also结构不符合习惯用法.应该改为not only…but also或者both…and结构
(C) also encouraging和stigmatized不平行
(D) 并列句主句相同,they应该省略;如果一定要用they的话,and前面必须用逗号隔开,构成一个新的句子;whether…or also结构笨拙复杂,且it没有可以指代的对象
(E) 正确, encouraged同developed构成并列谓语;not only…but also符合习惯用法
例：
Having finally reached a tentative labor agreement with its company's pilots, it must now be determined by the airline's board of directors how the airline can both increase profits and compete more effectively for customers than they did in the past.
(A) it must now be determined by the airline's board of directors how the airline can both increase profits and compete more effectively for customers than they did in the past
(B) it must now be determined by the airline's board of directors how the airline can both increase profits and must compete more effectively than in the past for customers
(C) the airline's board of directors must now determine both how to make the airline increase profits and compete more effectively for customers than they did in the past
(D) the airline's board of directors must now determine how the airline can both increase profits and compete more effectively for customers than it did in the past
(E) the airline's board of directors must now determine how the airline can both increase profits and also how to make it compete more effectively than in the past for customers
答案解析：
(A) 不符合形式主语的使用规则,how前面要加上that,构成it is… that型主语从句; it没有指代对象且不能作为having finally reached的逻辑主语; they没有指代对象,应该改为it,用来指代the airline.
(B) 不符合形式主语的使用规则; it没有指代对象，且不能作为having finally reached的逻辑主语;both increase profits and must compete结构不平行; 修饰成分for customers和修饰对象compete more effectively中间插入了than in the past, 句子不通顺, for customers应该紧接compete more effectively之后
(C) both how to make the airline increase profits and compete结构不平行; they没有指代对象
(D) 正确, 注意到了逻辑主语的问题; both increase profits and compete结构平行
(E) both increase profits and also how to make结构不平行; for customers应该紧靠compete more effectively
》》点击了解GMAT语法平行并列练习题(一)
以上就是关于GMAT语法平行并列练习题第二部分的内容讲解，关于平行结构的考题形式有很多，后面小编会为大家继续介绍，希望大家能够继续关注GMAT考试备考资讯。
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