英语句子词分析the paper he made was of poor quality because he followed a wrong production procedure.请问,he made was of poor,这里头,为什么要有of,请明白的帮我详解一下类似用法,
问题描述：
英语句子词分析
the paper he made was of poor quality because he followed a wrong production procedure.
请问,he made was of poor,这里头,为什么要有of,请明白的帮我详解一下类似用法,
答
be poor in quality == be of poor quality
this book is very useful to me ===this book is of much / great use to me.
very valuable==of great/much value
(ADJ.=== OF N.) 形容词==OF 加 名词
答
主语是the paper he made，he made为定语从句，修饰paper，“be of+名词”， 表示“具有……”，比如表示年龄、大小、颜色、重量、高度、身材、价格、意见、形状、种类（kind）和方法等名词，用来说明主语的特征。
答
这里不是was of poor,而是was of poor quality,此处poor修饰名词quality,
结构：be of + n.= be+adj.
类似的结构如：be of value = be valuable be of importance= be important
答
of + NouN =adj