of是介词一般后接名词，代词或动名词。
例句：
Everybody is aware of the hazards of smoking.
大家都明白吸烟的危害。
Around 15% of our diet is composed of protein.
我们的饮食中大约有15%的蛋白质。
扩展资料
Sunlight consists of different wavelengths of radiation.
阳光由波长不同的射线组成。
She was possessed of exceptional powers of concentration.
她有高超的专注能力。
It was week five of my tour of the major cities of Europe.
这是我在欧洲主要城市旅行的第5周。
