一、of短语常用作后置定语,修饰前面的名词
1、the cover of the book 书的封面
of the book修饰the cover,cover为整个短语的中心词。
2、the teacher of the students 这些学生的老师
of the students修饰the teacher,teacher为中心词。
3、Inside was an exhibition of the most up-to-date inventions of the 21st century.
在an exhibition of the most up-to-date inventions短语中,of结构修饰前面的exhibition,意为“最新发明的展览”。
在inventions of the 21st century短语中,of结构修饰inventions,意为“21世纪的发明”。
所以在an exhibition of the most up-to-date inventions of the 21st century短语中,中心词为exhibition,意为“21世纪的最新发明的展览”。
二、of词组作前置定语,修饰后面的名词