同学你好，该知识点来自沪江网校《新概念英语第二册【随到随学班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学好~

as作“虽然”讲，引导让步状语从句时，必须将表语、状语或动词原形提到as前面。注意这样的句式里was不能提前哦~

参考例句：

Tired as I was, I tried to help them. 虽然我很累，我还是努力帮助他们。
Try as he would, he couldn’t open the door. 他试过多次了, 却仍打不开那门。
Search as they would, they would find nobody in the house. 无论怎样搜查，他们在房子里仍然没有找到一个人。
Hard as  they tried, they couldn’t make her change her mind. 尽管他们做了很大努力，却没法让她改变主意。
Boy as he was, he behaved like a girl. 他虽是个男孩，但举止却像个女孩。

祝学习进步。