新人教版九年级Unit 13 We are trying to save the earth.(Section B 1a-2e)PPT课件(省优课).ppt
Dont use paper napkins. n. 餐巾纸 How can we do to help save the earth? You can help reduce pollution by putting that soda can in a different bin. Leave your car at home. Take a bus or ride your bike to work. Turn off the lights when you leave a room.