Hands up 举手 hand out 分发，分给

6. But they betray themselves every time they open their mouths.

betray oneself 无意中露出本性；背叛

money.betray

1）vt.泄露（秘密）她不会把他的秘密泄露给我。

He betrayed the news to all his friends.

2）vt. to be disloyal or unfaithful to 出卖；背叛

His best friend betrayed him.

He betrayed his country to the enemy

(3) to be a sign of (sth. One would like to hide)显露；显示

His face betrayed that he was angry.

7. Condemn vt.谴责

condemn sb. / sth. 谴责某人/某事

Step II sentences

1.Generally speaking, people are more polite to those whom they think are of higher social class.

总的来说，人们对那些他们认为属于较高社会阶层的人更礼貌一些。

(1)本句中的of 表示"从属"关系。例如：

Birds of a feather flock together.

(2) be of + 形容词+抽象名词=be +副词+与该抽象名词同根的形容词。例如：What I said is of great importance. = What I said is very important.