求英语高手,解答下我的疑惑To take an extreme example,farmlands dominated by a single crop are so unstable that one year of bad weather or the invasion of a single pest can destroy the entire crop请问To take an extreme example是什么成

求英语高手,解答下我的疑惑To take an extreme example,farmlands dominated by a single crop are so unstable that one year of bad weather or the invasion of a single pest can destroy the entire crop请问To take an extreme example是什么成
求英语高手,解答下我的疑惑
To take an extreme example,farmlands dominated by a single crop are so unstable that one year of bad weather or the invasion of a single pest can destroy the entire crop
请问To take an extreme example是什么成分?
farmlands dominated by a single crop这个是主语从句吗?
So that 在句子中是什么成分?that 后面是引导从句吗?如果是,什么从句?

求英语高手,解答下我的疑惑To take an extreme example,farmlands dominated by a single crop are so unstable that one year of bad weather or the invasion of a single pest can destroy the entire crop请问To take an extreme example是什么成
To take an extreme example 状语
farmlands dominated by a single crop不是定语从句,而是过去分词做定语
that是结果状语从句
个人见解,仅供参考