环保

　　With the development of science and technology,global warming is becoming the focus of human beings.Some measures should be taken to protect our planet.

　　To begin with,it's essential to save energy because of limited natural resources.For instance,turn off water tap after washing hands and turn off lights immediately if there is no person in the room.What's more,we'd better go out on foot or by bike,instead of using vehicles in order to reduce carbon emission,which is also good to our health.Besides,we are supposed to reduce waste,and reuse what we can be recycled.Plus,no littering and planting more trees are good ways to beautify our environment.

　　In a ward,the earth is our only home.we should take immediate action to protect it.Whatever you do,no matter how small itis,counts!