I. Teaching objectives: 1. To introduce the context about having a robot to help with the work for humans 2. To talk about what a robot can do 3. To learn some of the advantages of robots II. Teaching procedure: Step 1: Warm-up: To raise students’ interest, get students thinking and talking about robots: ① Have you seen robots in the films? ② What kind of robots do you know? ③ Do you like robots? Why? ④ What do you think robots can do for you? ⑤ Would you buy a robot in the future? Why? Step 2: welcome to the unit