The extent to which Walden presents nature as being threatened.英语翻译,句子结构分析,还有which指代什么?
问题描述：
The extent to which Walden presents nature as being threatened.英语翻译,句子结构分析,还有which指代什么?
答
瓦尔登湖向世人展现了大自然频临危险的程度.
to which...as...是个定语从句,修饰extent,which指代extent,to,extent到.程度.