一、Pre-reading
1. Greeting
2. Leading-in
教师活动：Let students discuss following questions in groups.
1. What's the function of language?
2. Suppose we are living in a silent world. How will you communicate with each other?
学生活动：Role-play: Finish the Activity 1.
教师活动：Summarize the role-play and ask:
How many types of body language do you find in students' performance?
例如：facial expression: smile, mouth wide-open, frown. . .
gesture: waving one's hand, thumb up, clench one's fists. . .
学生活动：Scanning the pictures and title, guess what the passage is about.
Look at the picture on this page. What do you think the young lady might want to convey with her body language?
