【问】 Rip is tall for his age.

如何解释句中介词for的含义?

【答】 这里的介词for是表示比较的“标准”(standard)。Rip is tall for his age.可以理解为Ripis taller than normal.请看下面的例句：

1.That dog is long-legged for a terrier. (CGEL)

那条狗按㹴而论腿是很长的。(㹴是一种小狗)

2. It is quite warm tonight for February. (Shaw)

就二月份来说，今天夜里的天气是够热的了。

3. On educational matters his views were advanced for his day. (Mis)

他在教育问题上的观点，就他那个时代而论，是很先进的。