下面的资料是汇总及剖析【5】，包括GRE阅读真题中的一些重点长难句汇总和相应解析资料，重点分析长难句对大家理解文章意思也会有帮助的。预祝大家都能够取得好成绩。
This preference for exogamy，Gutman suggests， may have derived from West African rules governing marriage，which，though they differed from one tribal group to another，all involved some kind of prohibition against unions with close kin. (3+)
难句类型：复杂修饰、插入语
译文：古特曼表示，这种对于外部通婚的偏爱很有可能缘起于西部非洲制约着婚姻的规定，尽管这些规定在一个和另一个部落群体之间不尽相同，但都涉及到某种对近亲联姻(union with close kin)的禁止。
解释：本句有两个插入语，第一个插入语Gutman suggests割裂了主句的主语和谓语。West African rules后跟着两个修饰成分，第一个是分词修饰(governing marriage), 第二个是以which引导的非限定性定语从句，从句中出现了第二个插入语though they differed from one tribal group to another，又割裂了从句引导词与谓语之间的联系。
意群训练：This preference for exogamy，Gutman suggests， may have derived from West African rules governing marriage，which，though they differed from one tribal group to another，all involved some kind of prohibition against unions with close kin.
His thesis works relatively well when applied to discrimination against Blacks in the United States，but his definition of racial prejudice as "racially-based negative prejudgments against a group generally accepted as a race in any given region of ethnic competition，" can be interpreted as also including hostility toward such ethnic groups as the Chinese in California and the Jews in medieval Europe. (4+)
难句类型：复杂修饰、插入语、抽象词
译文：该社会学家的命题当被应用于针对美国黑人的歧视时，相对而言尚能适用，但他对种族偏见所下的定义——即“以种族为基础的、针对某个群体的消级的先入之见，而该群体在任何特定的种族竞争地区则被普遍认作一种族”——可被理解成同样也襄括了针对加利福尼亚州的中国人以及中世纪的犹太人这样一些种族群体的敌视态度。
解释：本句长度惊人，插入部分比较长，再加上不乏抽象词，所以较为难懂，在表示转折的后半个分钟中，长长的插入语as raciallybased negative prejudgments against a group generally accepted as a race in any given region of thnic competition作为主语his definition of racial prejudice的同位语，使分句中的主谓相隔千山万水。除此之外，本句用词抽象，语义难以理解，对读者的词汇功底要求较高。考试现场如无法读懂，宜用合理化原则中的取非读法，but之前的分句说的是其论点对美国黑人的种族歧视是较为管用，转折后的内容就应该说其理论对华人和犹太人相对无用。
意群训练：His thesis works relatively well when applied to discrimination against Blacks in the United States，but his definition of racial prejudice as "racially-based negative prejudgments against a group generally accepted as a race in any given region of ethnic competition，"can be interpreted as also including hostility toward such ethnic groups as the Chinese in California and the Jews in medieval Europe.