参考答案：有很多种不同的社会关系。这些关系包括配偶、亲密朋友、兄弟姐妹、同事以及工作中的下属与上司。社会学家在世界各国做过一系列调查。研究人员发现了五项对于上述关系中半数以上都“通用”的原则：
1)尊重别人隐私；
2)在交谈的时候看着别人的眼睛；
3)不要谈论和别人私下交谈的事情。
4)不要公开批评别人；
5)返还债务、回报人情或者赞许，不管多么微不足道。

解析：[听力原文]
There are different kinds of social relationships. These include relationships with spouses, close friends, siblings and work colleagues as well as relationships between work subordinates and their superiors. Sociologists have done a series of investigations in different countries in the world. These researchers discovered five "universal" rules that applied to over half of all these relationships:
1) Respect the other’s privacy.
2) Look the other person in the eye during conversation.
3) Do not discuss what has been said in confidence with the other person.
4) Do not criticize the other person publicly.
5) Repay debts, favors or compliments no matter how small.