目录
一、原句
二、主要句子成分
三、 分词短语部分
四、定语从句部分
五、结构总结
六、句子改良
一、原句
Z-Library has always been a part of my study, providing many books that would otherwise require a lot of time or money to find.
来源：写作练习(一)-CSDN博客
二、主要句子成分
Z-Libaray: 主语(Subject)
has always been: 系动词(linking verb)
a part: 表语(Predicative)
of my study: 介词短语(Prepositional Phrase)
三、 分词短语部分
providing many books: 分词短语(Participial Phrase)
that would otherwise require a lot of time or money to find: 定语从句(Relative Clause)
Z-Library has always been a part of my study, which provide many books that would otherwise require a lot of time or money to find."
"which provide" 中的 "which" 是代指前面的名词短语 "a part of my study"，但是“a part of my study” 并不能提供书籍，语法上不太恰当。应该是 Z-Library 提供书籍，而不是“my study”的某一部分。
四、定语从句部分
that: 从句主语，代指"books"
would otherwise require: 从句的谓语
a lot of time or money: 宾语
to find: 动词不定式短语，充当目的状语，表示需求的原因或目的
五、结构总结
主句：
主语：Z-Library
系动词：has always been
表语：a part of my study
分词短语：
providing many books（表示 Z-Library 提供书籍）
定语从句：
that would otherwise require a lot of time or money to find（修饰 "books"）
六、句子改良
Z-Library, which has always been an integral part of my academic journey, provides numerous books that would otherwise demand considerable time and financial resources to obtain.
主句：
主语：Z-Library
谓语：provides
宾语：numerous books定语从句：that would otherwise demand considerable time and financial resources to obtain（修饰 "books"）
非限定性定语从句：
主语: which
谓语：has always been
表语：an integral part of my academic journey
