让步状语从句：
主要连接词：although / even if / while 后两个是考试的重点。no matter what / no matter how / whetheror not 这是让步句考试的重点。
例如：
No matter what may happen, we will not change our plan.
No matter how difficult the journey may be, we will not change our plan.
We should not worry her whether she is well or ill .
注意：no matter what后面跟名词或名词性结构;no matter how后面跟形容词或副词，不要搞错;用了no matter what / no matter how就不能再用whatever / however.
5) 比较状语从句：
这是英语语法必考内容，要特别加以重视。
基本概念：两个比较级，三个或三个以上最高级。要对数字2特别敏感，试选择：
Of Mary and Jane, who is ______?
A. smart B.the smartest
C. more smarter D.the smarter