【问】 In the Soviet Union several cases have been reported recently of people who can read anddetect colours with their fingers，...(New Concept English，Book 4，L. 4)of people who... fingers是句子的什么成分?

【答】 of people who... fingers是cases的定语，为了避免主语部分太长而谓语部分太短，而与其中心词cases分隔开。如恢复原结构应为：

In the Soviet Union several cases of people who can read and detect colours with their fin-gers have been reported recently.

请与下列例句作对比：

A new wide road was being finished that would go over the mountain and zigzag down tothe bridge. (Hemingway)

一条越过山头，盘旋下降到桥边的宽阔的新路正在完工。

更详细的情形，请参阅splitting¹。