想要看懂托福阅读长难句，考生除了拥有牢固的英语语法基础外，还需要积累大量的实际分析和应对长难句的经验。下面小编就来为大家带来一些托福精选资料教材中的长难句案例分析，帮助考生提升理解长难句的能力，更好地解答阅读难题。
托福阅读 100 个长难句实例分析原句案例：
Cleisthenes' principal contribution to the creation of democracy at Athens was to complete the long process of weakening family and clan structures, especially among the aristocrats, and to set in their place locality-based corporations called demes, which became the point of entry for all civic and most religious life in Athens.
词汇讲解：
democracy /d 'm kr s / n. ，政治，制度
clan /kl n/ n. 宗族，家族 ; 集团，帮会
aristocrat /' r st kr t/ n. 贵族
civic /'s v k/ adj. 城市的 ; 市民的，公民的
rule n. 统治，管理
结构划分：

Cleisthenes' principal contribution ( to the creation of democracy at Athens ) was ( to complete the long process of weakening family and clan structures ) , ( especially among the aristocrats ) , and ( to set in their place locality-based corporations called demes ) , ( which became the point of entry for all civic and most religious life in Athens. )
深度分析：这个句子的结构是：
Cleisthenes' principal contribution was 非谓语 and 非谓语
一个非谓语： ( to complete the long process of weakening family and clan structures )
第二个非谓语： ( to set in their place locality-based corporations called demes )
修饰一： ( to the creation of democracy at Athens ) ，介词短语
中文：在雅典创造
修饰二： ( to complete the long process of weakening family and clan structures ) ，非谓语动词
中文：完成了减弱家族和宗族结构的长期过程
修饰三： ( especially among the aristocrats ) ，介词短语
中文：尤其是在贵族间
修饰四： ( to set in their place locality-based corporations called demes ) ，非谓语动词
中文：在他们所在地方设置基于地点的称之为 demes 团体
修饰五： ( which became the point of entry for all civic and most religious life in Athens. ) ，从句
中文：这成为了雅典所有公民和大多数宗教生活的入口点。
参考翻译：Cleisthenes 对于创造雅典的主要贡献是他完成了减弱家族和宗族结构 ( 尤其是贵族家族和宗族结构 ) 的长期的过程，并且在他们所在地方设置基于地点的称之为 demes 团体，这成为了雅典所有公民和大多数宗教生活的入口点。
以上就是托福阅读中长难句的训练分析介绍，希望大家能够学到有效的训练和提升方法，让自己更为轻松地面对长难句得到高分。