yesterday. Our class teachers and students to carry out environmental campaigns Star Park. The teacher divided us into five groups, the first group for publicity,The second group, to help maintain traffic, the third set of cleaning city parks, and the fourth group to encourage sick children at Children's Hospital，The fifth group, set of garbage, the layout of the task, we split up open. Some students passers promote the importance of environmental protection, allowing people to increase awareness of environmental protection, actively involved in environmental protection activities, to protect our living environment, improve our living space; some students so that passers-fill "green Knowledge Questionnaire" survey people on environmental protection knowledge level of understanding; passers-by to send some students to promote environmental awareness in an open letter to the people around them publicity, snowball so that more people grasp environmental knowledge. The exercise of my campaign, I also learned a lot of knowledge, we have this large class society a vivid lesson.