重点讲解：
1. as a result of 结果；后果；
As a result of collective effort, the difficult situation changed into a favourable one.
经过大家的努力，困难的局面终于让位于顺利的局面。
2. for free 义务地；无偿地；免费地；
You can use the Internet in your room for free.
你可以免费使用房间里的互联网。
3. take care of 处理；应对；
They leave it to the system to try and take care of the problem.
他们让系统去设法解决这个问题。
4. sign up for (和…)签约；雇用；报名(参加课程)；
If anger management is difficult for you, sign up for a course to help you deal with it.
如果对你来说管理愤怒很困难，那么报名参加一个帮助你解决的课程。