of后面加什么词性

例句：

The book is the fruit of years of research.

这本书是多年研究的'成果。

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。

One of the penalties of fame is loss of privacy.

成名的弊端之一是失掉了隐私。

Sunlight consists of different wavelengths of radiation.

阳光由波长不同的射线组成。