1、Unit 13 Were trying to save the earth!,Section A(1a-2d),任务一,任务二,任务三,任务一:将下列单词或短语归类。 chimneys,factories,mobile phones,planes,motor vehicles,motorcycles,loud music,smoking,littering,building houses,liquid wastes 1.air pollution: 2.noise pollution: 3.water pollution:,答案：(此题答案并非唯一) 1.chimneys,factories,
2、planes,motor vehicles,motorcycles,smoking,littering,building houses 2.factories,mobile phones,planes,motor vehicles,motorcycles,loud music,building houses 3.factories,littering,liquid wastes,任务一,任务二,任务三,任务二:请按以上分类补充更多的词汇。,答案：略,任务一,任务二,任务三,任务三:在日常生活中,污染随处可见。请结合你的生活环境,与同伴讨论你身边的污染源及合理的治理措施。,答案：略,1,2,1.
3、Yes,but people are throwing litter into the river. 是的,但是人们把垃圾扔到河里。 litter在句中是不可数名词,意为“垃圾;废弃物”。如: Please do not drop litter.请勿扔垃圾。 拓展 litter还可用作动词,意为“乱扔”。如: Shes always littering up her room with her clothes. 她总是乱扔衣物,弄得房间凌乱不堪。,1,2,2.There are other advantages of bike riding. 骑自行车还有其他的好处。 advantage是名词,意为“优点;有利条件”。如: What is the advantage of drinking this kind of water? 饮用这种水有何好处? She had the advantage of a good education. 她具有受过良好教育的有利条件。 拓展 advantage的反义词是disadvantage。如: Every advantage has its disadvantage.有利必有弊。,
