本集核心英语单词及例句：

1.pugnacious (adj.)好斗的，好战的
Male Harris sparrows are pugnacious beasts.
雄性哈里斯麻雀着实是好斗分子。

2.critical (adj.)关键的；鉴定的
We had better call in a specialist at this critical moment.
在这个关键时刻我们最好请一位专家来。

3.defensive (n.)防御；守势
This is an example of defensive programming.
这是一个防御编程的实例。

4.purposely (adv.)故意地；蓄意地
I purposely made it easy, so you wouldn't procrastinate.
我故意把它简单化，这样你就不会拖沓了。

5.hypnosis (n.)睡眠
Some people are particularly vulnerable and susceptible to hypnosis.
有些人特别脆弱，容易进入催眠状态。

6.trance (n.)恍惚，着迷
The old man was in a trance, thinking of his past life.
这位老人回想着自己过去的生活，神情恍惚。

7.specific (adj.)具体的，特定的
Some specific problems have yet to be solved.
还有一些具体问题要解决。

8.confused (adj.)困惑的；混乱的
The confused situation has straightened out.
原先十分混乱的局面现在已恢复正常了