部分形容词，如eager，anxious，determined，able等，其后常跟不定式，他们的同源名词后要用不定式的主动式作定语。例如：

（Mr．Smith was eager to get back to teach at the school．）

Mr．Smith's eagerness to get back to teach at the school was quite obvious．史密斯先生急于回校教学这一点是显而易见的。

（He was anxious to know the results of the test．）

We could see his anxiety to know the results of the test．我们看得出他很想知道这次测验的结果。

（They were determined to catch up withus．）

In their speech they expressed their determination to catch up with us．他们在讲话中表达了他们要赶上我们的决心。


什么是同源名词!!解释这到底是什么意思,谢谢

同源名词应该就是形容词对应的名词吧！所谓同源，应该是他们的词根相同！
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