2Contents1. Humor....................................................................................................................................................21.1 The Definition of Humor .....................................................................................................................2 1.2 The Classification of Humor.................................................................................................................22. Sitcom.....................................................................................................................................................2 2.1 Sitcom and Humor...............................................................................................................................2 2.2 A Brief Introduction of Friends.........................................................................................................23. The Pragmatic Study on Humor............................................................................................................33.1 Conversational Implicature ................................................................................................................33.2 The Cooperative Principle and its Maxims..........................................................................................43.2.1 The Cooperative Principle......................................................................................................…….43.2.2 Four Maxims of the Cooperative Principle...................................................................................4 3.2.3 The Violation of the Maxim of Quantity......................................................................................4 3.2.4 The Violation of the Maxim of Quality............................................................... .........................53.2.5 The Violation of the Maxim of Relation.........................