19.5功效状语从句-状语从句
19.5功效状语从句
功效状语从句常由 so…that或 such…that指导。so…that与such…that之间可以转换。例如：
The boy is so young that he can't go to school.这男孩年龄太小，不能上学。
He is such a young boy that he can't go to
school

关键字：功效状语从句 状语从句 让步状语从句 时候状语从句 前提状语从句