where 引导定语从句时,它所修饰的名词除了表示地点以外,还可表示情形、境况等。如: He was in a position where he had to force a decision. (他当时的处境是,不得不强行推动作出决定。) There comes a point where you give up. (现在你该放弃了。) 引导定语从句的 where 相当于 in which 或 at which。以上各句中的 where 换作 in which 或 at which 也许更容易理解。