1. Video Clip (1) http://www.youtube.com/wa tch?v=E1cyUmx5htA

2.  Global warming Polar bear Glacier melting

3. Video Clip (2)  http://www.youtube.com/w atch?v=CxUK2TizQ4g http://www.youtube.com/w atch?v=CxUK2TizQ4g

4.  Greenhouse effects Carbon dioxide Climate change

5. Video Clip (3)  http://www.youtube.com/w atch?v=oPkOFwaGKG0

6.  1. What is the main cause for ‘Global Warming’?

7.  2. Do you know how to say it in English? (1) 全球暖化 (2) 溫室效應

8.  3. What can we do to save the earth?

9. We have only one Earth

10. See you next time!!