Unit 5 Workers (1)Words（单词）1. Noun.名词bus/taxi driver(司机) doctor(医生) firefighter(消防员) mailcarrier(邮递员) nurse(护士)policeofficer(警察) salesperson(售货员) waiter(服务员) teacher(老师) farmer(农民) cook(厨师) artist(画家)2.Others:其它Unit 4 建筑类单词Sentences(句型)1. Where does a firefighter work ?(消防员在哪里工作？)-A firefighter works in a fire station消防员在消防局工作。2. What do you want to be?(你想成为什么？)-I want to be a doctor.(我想成为一名医生。)Grammar(语法)一Lets=let us 表示让我们陈述形式：Lets +V(动词原形
