A growing protecting environment fever is sweeping over the forest. Pupils at Forest Primary School all volunteer to form an environment-protection team so as to become guards of environment who set an example for the adults in the forest. The forest becomes more beautiful. Finally, adults decide to choose one pupil and praise him the best guard of environment. In order to get the title, pupils compete with each other. Finally they know that environment-protection is to do something at any time even it was the most ordinary thing instead of doing that for show.