可以用介词+where引导定语从句吗?

题目

可以用介词+where引导定语从句吗?
The cemetery and memorial are situated on the cliff overlooking the beach and the English Channel,from where the boats attempted their landings.（高中外研版教材选修6 Module6）
英语中,引导定语从句时,介词+which结构可以用where替换,为什么这个句子中,用from where 引导定语从句吗?
但是这句话当中定语从句的先行词是表地点的介词短语吗?我的理解是,该从句先行词是the beach and the English Channel,所以还是不太理解,

答案

可以的.当先行词是地点名词,选择from which.当先行词为表示地点的介词短语或副词短语时,用from wherewe stood at the top of the hill,from where we can see the town.这句话的先行词是 at the top of the hill,所...