Unit 5 What does he do?第二课时Sing a songWhat do you want to do?businessmanhead teachertaxi driverwriter dancer football playerfactory workerShe is a worker, she works in a factory. So she is a factory worker.What does he do?postmanHe is a man, he works in post office. So he is a postman.What does she do?post officerShe is a officer, she works in a police station. So she is a post officer.职业词汇的构成职业词汇的构成,有以下几种情况: a. 词尾直接加-er ,如: work+ er = worker, sing + er = singer, clean + er = cleaner b. 以e 结尾的直接