Ss: Good afternoon, Miss Hu.
T: Good afternoon, class.
T: In this class, we are going to learn unit 8, I’ll help clean up the city parks. First, let’s see what we are going to learn. We are going to learn some new words, have to plan an activity and offer help.
Before we start the lesson, I’d like to show you a video. Would you like to see it?
（Ss watch a video）
T: What’s the name of this movie?
Ss: ‘2012’
T: Yes, it’s called 2012. In this movie, the earth will come to an end in 2012 because of some serious natural disasters. What natural disasters did you see just now? What other natural disasters do you know? Who knows?
S1: Typhoon.
S2: Flood.
S3: Volcanic eruption.
S4: Tsunami
S5: Drought
T: These natural disaster will make the world come to end. Please repeat after me.（The Ss read）