Section A: （保留原书内容，跟着音频君边读边记忆，体会单词的发音和用法）

1. altercation  n. 争吵

The teacher halted the altercation by separating the two opponents before they could come to blows.

老师在敌对的双方互殴之前拉开他们，阻止了争吵。

2. cleavage  n. 分歧

The cleavage between the poor and wealthy classes in some western countries has become a more and more serious problem.

在某些西方国家，贫富差距问题变得越来越严重。

3. discord  n. 争论；不一致

Billy Budd put an end to the discord aboard the RIGHTS-OF-MAN. He was an excellent peacemaker.

比利·巴德结束了“人权号”船上的争论，他是一位杰出的和事佬。

4. discrepancy  n. 不符合之处；矛盾

Eighty students came to the dance but only only seventy-four tickets were collected at the door. Can you account for this discrepancy? 

有80位学生参加舞会，但是门口只收到74张票，你能解释这不符之处吗？

5. friction  n. 摩擦

At the budget hearing, there was considerable friction between the supporters and the opponents of higher taxes.

预算听证会上，增加税收的赞成者与反对者之间产生了很大的摩擦。

6. litigation  n. 诉讼

Some business disputes can be settled out of court; others require litigation.

有些商业争端可以庭外和解，有些则须提出诉讼。