重点讲解：
1. check on
检查，查看（以确保一切正常）；
eg. He decided to check on things at the warehouse.
他决定去仓库查看一下。
eg. Don't forget to check on your work.
别忘记检查一下你们的工作。
2. in fact
事实上，其实；
eg. That sounds rather simple, but in fact it's very difficult.
那听来简单，但实际上很难。
eg. In fact, I'm sure that's the only satisfactory way out.
我想，事实上那是唯一令人满意的出路。
3.go+现在分词
go 后接 dancing, shopping, fishing, hiking, hunting, skating, skiing, surfing, swimming, walking等，表示去进行该活动；文中用到的就是go fishing去钓鱼；
eg. It's dangerous to go skating on the lake.
在湖上滑冰有危险。
eg. He finished lunch and went shopping.
他吃完午饭而后去买东西。
4. may as well
不妨；最好；还不如；
eg. You may just as well tell me the truth.
你告诉我真相也无妨。
eg. So you may as well give us something.
所以现在你最好告诉我们一些情况。