本集核心英语单词及例句：

1.jealous (adj.)妒忌的；猜疑的
Sometimes he is so jealous that he feels green with envy.
有时候他是那么妒忌，他觉得自己妒忌得要疯了。

2.slay (vt.)杀害，杀死
The object of the video game is to slay as many dragons as you can.
这个游戏的目标是尽可能多地杀死龙。

3.determine (v.)决定，确定
You must control your anger so you can determine how you will feel about it.
你必须控制自己的怒火，这样才能决定你想怎样去感受它。

4.outcomes (n.)结果，结局；成果
Most optimistic people are able to determine positive outcomes for most situations.
大部分乐观的人可以积极地对待大部分情况的结果。

5.advantage (n.)优势；利益
The advantage to thinking positive is that other people will want to be your friend because you make them feel happy.
积极思考的好处是，由于你可以使别人开心，他们愿意和你成为朋友。