1、我们以一个题目引入今天的课程。
_______ reading this book took much time, I think it's worth it.
A. Although
B. After
C. If only
D. In case
2、那么什么是让步状语从句呢？
指的是在从句中作让步状语的从句，什么是让步，本身带有妥协的味道在里。
这种状语位置可防御句首或者句尾。
例子：
Although I love you, I can't marry you now.
3、让步状语从句有哪些引导词？
n1. though/although
两者有什么区别？
Although更为正式。
4、例句：
Although/Though it was raining, they stil play happily.
Young though she is , she has accumulated much knowledge.
在上述的句子中，Although一般可以和Though互换，但是反之未必可行。
5、n2.even though和even if
这两者与其更为强烈
区别：
Even though 一般后面放事实情况
Even if 后面一般是假设情况
6、例句：
Even though he was late, he is the manager of the company.
Even if there is a risk of failure,I still choose to try.
从这两句可以分析得出：
第一句，他迟到是一种客观事实。
第二句，有失败的风险只是一种可能性。
