Complaints by the older generation about the different habits of the young and the life they lead can be found at least as far back as two and a half thousand years ago.
1.请问老师，以下句型剖析的正不正确？
主语是 complaints by the older generation；介词短语 by the older generation 是complaints 的后置定语。第二，介词短语 about the different habits of the young and the life they lead 作主语 complaints by the older generation 的后置定语。谓语是can be found。时间状语是 at least as far back as two and a half thousand years ago。 句中 the life they lead 中 they 指的是 the older generation。
2. 为什么是 complaints by the older generation 而不是 complaints made by the older generation ? 有无made有什么不同？
谢谢老师。
Complaints by the older generation about the different habits of the young and the life they lead can be found at least as far back as two and a half thousand years ago.
句子的主语是名词complaints，by介词短语和about介词短语分别都是主语的后置定语。the life they lead中的they指代the young, 不是the older generation. 句子的逻辑是老一代人抱怨青年的习惯和青年的生活（方法），而不是抱怨我们的生活方法。
网友对句子的其它剖析是正确的。
一个动词作谓语时，动作施事者为主语，受事者为宾语，可能还会有状语。当这个动词变形后当作名词用时，逻辑上仍有施事者、受事者和对动作的修饰语。此时动作的施事者一般由介词by引出，受事者由介词of引出，修饰语的介词一般不变。比如：
Police arrested Tom on Sunday. 主语+谓语+宾语+时间状语
The arrest of Tom by police on Sunday surprised everyone. 原来的主谓宾状结构变成了一个名词词组，由中心名词后接三个介词短语作后置定语，分别表示该名词所表示动作的受事者、施事者和时间状语，但在语法上，这三个介词短语不可以叫主语、宾语和时间状语，他们都是名词arrest的定语。
因此，名词complaints的二个介词短语作定语，在逻辑意义上分别是抱怨这个动作的施事者和抱怨的内容，但在语法上是定语。
