Last month, our school launched a campaign whose  was to promote environmental protection. The campaign lasted for one week. Firstly, there was a photo display to show the serious pollution caused by human activities. Secondly, there was a lecture on many  that we could take in our daily life to protect the environment. For example, taking the bus or using the bike-sharing system would be a  way. Last but not least, we students were encouraged to  our classrooms with recycled materials. Through the campaign, we a lot. We realize that it is our responsibility to leave a better, cleaner and healthier planet for future generations.

Mother earth is a place where  species can coexist. Unfortunately, wild animals have no place in the 21st century. Some people think that protecting these wild animals is a waste of . But an increasing number of people come to realize that the disappearance of animals will result in a serious threat to . It is hard to imagine what our world would be like without animals. There are enough farm animals providing us with sufficient and nutritious meat. Therefore, we don't need to make use of wild animals, especially the  ones. To protect animals is to protect our living environment. So great efforts should be made by every  to keep the diversity of animals.