Unit One GreetingObjectives: By the end of this unit, the students should be able to:1) read, discuss and translate business cards in English,2) learn some expressions used in greeting and introducing people,3) comprehend the two passages and master the useful expressions in them,4) finish the exercises by themselves or with some help. Introduction Lead-in（导入）:First, the students are asked to talk about how to greet and introduce people. Then their opinions are written down o
