1. What is law?

Law is a formal ①mechanism of social control.

②法律是社会控制的正式机制

1) informal:Ethical and moral guidance

2) mechanism of social control：

Provides a structure for dealing with and resolving disputes that may arise;Provides some deterrent to those wishing to disrupt social order.

提供处理和解决可能出现的争端的结构；对那些想要扰乱社会秩序的人起到了一定的威慑作用。

2. Types of law

2.1 Statute law and case law

2.2 Private law and public law

2.3 Civil law and Criminal law

2.1 case law(判例法) and Statute law (成文法)

分类的标准：法律制定的主体不同