Here's a really useful listening exercise on the BBC GCSE Bitesize - French website
Listen to the audio extract and try to work out
1 What you can do at home to help the environment
2. What you can do in town to help to protect the environment.
http://www.bbc.co.uk/schools/gcsebitesize/audio/french/
Click on:
Listening Higher
Then:
Comprehension: The environment
