Our environment is very important for our lives .（我们的环境对我们的生活是很重要的） We need the fresh air, the clean water and so on . （我们需要清新的空气，清洁的水等等）In the past, there were many trees around us ,the air was fresh and the river was clean.（在过去，我们的周围有许多树木，空气是清新的，河流是干净的）But now,people cut down many trees and air pollution,water polloution is very serious .（但是现在，人们砍伐了很多树木，空气污染和水污染也是很严重的。） The environment around us becomes very terrible .（我们四周的空气变得很糟糕） We should protect our environment.（我们应该保护我们的环境） First, we should plant many trees to keep water. （第一，为了保持水份我们应该多种树）Second , we can ride a bike or walk to the school and work. （第二。我们要骑自行车或步行去上学或上班）Third , we shouldn’t throw the dirty water into the river .（第三，我样不应该把垃圾扔进河里） Fourth, we shouldn’t use the plastic bags.（第四，我们不应该使用塑料袋） Finally, we can ask more people to join us.（最后，我们要让更多的人加入我们的行列）
Let’s protect our environment!（让我们来保护环境吧）