Unit 2 The environment
Welcome to the unit
Learning aims:
To know some problems caused by nature and by man which damage the environment.
Students are expected to fully participate in the discussion about these environmental problems and what they can do for the environment.
Step 1 Lead-in
1. Show some beautiful pictures to arouse the students’ interest and introduce the topic.
A healthy environment is important for our survival.
The beautiful earth is our home.
Do you love to live here?
2. Enjoy a song called Earth Song!
Earth Song 地球之歌
演唱：Michael Jackson
What about sunrise 日出呢
What about rain 雨呢
