同学你好，该知识点来自沪江网校《新概念英语第四册【随到随学班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学你好^_^

名词Education, 插入语with its cycles of instruction so carefully worked out, 后置定语punctuated by textbooks — those purchasable wells of wisdom — 主句what would civilization be like without its benefits?

Education是一个独立主格结构，with its cycles of instruction so carefully worked out, punctuated by textbooks—those purchasable wells of wisdom作该独立主格结构的状语。so carefully worked out和punctuated by textbooks为过去分词短语作定语，都修饰前面的 its cycles of instruction。

单部句（单元句）是一种现代英文中常用的修辞手段,它是英语从原始过渡到现代语言中的遗迹之一.在单部句中,只有一个成分,通常只有主语或只有谓语；或既是主语又是谓语. 最简单的单部句如： Help! Help! Oh, shit !

希望以上内容可以帮助到同学，祝学习愉快~

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