Unit 2 Loving Our Planet Topic 3 Pollution causes too many problems. Welcome to my class to learn English. 【最新】九年级英语上册 Unit2Topic3课件 仁爱版 课件 Topic 3 Would you like to be a greener person? Lets learn the new lesson. Section A Section B Section C Section D 1 113 94 5 82 6 7 1210 1716151413 18 19 20 【最新】九年级英语上册 Unit2Topic3课件 仁爱版 课件 【最新】九年级英语上册 Unit2Topic3课件 仁爱版 课件 2.How should we do to protect the environment? 1. Is cutting down trees harmful to human beings, animals and plants? Everyone should care
