Warm-up Activities

I．Directions：Try to come up with environmental pollution of different categories．Then explain what negative effect it may bring to us，and suggest what people can do to protect the environment．

Ⅱ．Directions：Think about the following questions and have a short discussion with your partner．(https://www.daowen.com)

1．Since 1995，the annual United Nations Climate Change Conference has led to an explosive growth of the word“low carbon”，which has rapidly become the focus of world attention．Do you have a clear understanding of the concept of“low carbon”？How does carbon dioxide cause global warming？How can we realize“low carbon”in our daily life？

2．Garbage classification has now become a widespread trend both in most developed countries and some developing nations as well．Do you know the benefits of garbage classification？