【1】where引导定语从句修饰“具体地点名词”或者引导状语从句相当于“(in) the place in which ”
This is where I live.这是我住的地方。【引导定语从句 where=the place in which】
This is the house where he lived three years ago.【引导定语从句 where= in which (which=the house)】
Sit where I can see you.坐在我能看到你的地方。【引导状语从句 where=in the place in which】
【2】where引导定语从句修饰“抽象地点名词”或者引导状语从句或者名词性从句相当于“(in) the situation/the point/stage in which ”
Where people were concerned, his threshold of boredom was low.涉及人的事情,他便极易感到厌烦。
【备注:where引导状语从句 where=in the situation in which】
That's where you're wrong.这就是你的错误所在。
【备注:where引导表语从句 where=the point in which】