定语从句中ofwhich的用法

of which 仅能用于指代事物，而在一些情况下，whose 能与 of whom 以及 of which 相互替换使用。当定语从句的主语为 few、little、some、most 等词时，通常只使用 of whom 和 of which。当定语从句的主语是数词及形容词的最高级形式时，通常也只采用 of whom 和 of which。

They produced two reports, neither of which contained any useful suggestions.

他们提交了两份报告，这两份报告中没有任何有用的建议。

The cell is the unit of which all living organisms are composed.

细胞乃所有生物的构成单位。

The trip was magical; the stuff of which dreams are made.

那次旅行充满魔力；简直是美梦成真的素材。