Unit 1 Nature in the balance Reading 课件-2022-2023学年高一下学期英语牛津译林版（2020）必修第三册

living mammal jaguar survive frog in turn insect adj.活着的，活的；在使用的 n.生计，谋生；生活方式 n.哺乳动物 n.美洲豹，美洲虎 vi.生存，存活 vt.幸存，幸免于难 n.蛙，青蛙 相应地，转而 n.昆虫 Words microorganism break down nutrient breathe life into carbon oxygen thus n.微生物 使分解（为），使变化（成） n.营养素，营养物 给…带来起色，注入活力 n.碳 n.氧，氧气 adv.因此，从而；这样 Words disappear due to agriculture cattle impact extinction damage vi.不复存在，灭绝，消亡； 消失；失踪 由于，因为 n.农业，农学 n.牛 n.影响，作用；撞击，冲撞 vi. & vt.有影响；冲击 n.灭绝，绝种 vt. & n.损害，伤害，损坏，破坏 Words Unit 1 Nature in the balance Welcome+ Reading Lead-in Let us not, however, flatter ourselves overmuch on account of our human victories over nature. For each such victory nature takes its revenge on us. —Fredrich Engels Welcome to the unit Listen to the song! Welcome to the unit What are the rhyming words in this song? harm/alarm; seas/trees; clean/green; above/love; pollution/solution. How do you understand “harm” and “alarm” ? “Harm” means something bad we have done to the earth, including __________________________________________, etc. “Alarm” means the signal that warns us of the dangers of environmental damage, which urges us _________________. polluting soils and seas, cutting down too many trees to find a solution Welcome to the unit 3. What is the message of this song? Humans have done much harm to the Earth, and we have to take action to change this situation. 4. What can you do to help protect the environment ? We can use less paper and fewer plastic bottles and bags. Cutting down on electricity usage can also help reduce the air pollution that power stations create. Have you ever watched a documentary before? Step 1: Pre-reading Do you know where it is? Step 1: Pre-reading 亚马孙热带雨林（Amazon Rainforest）位于南美洲的亚马孙平原，占地550万平方公里。雨林横越了8个国家：巴西（占森林60%面积）、哥伦比亚、秘鲁、委内瑞拉、厄瓜多尔、玻利维亚、圭亚那、苏里南以及法国（法属圭亚那），占据了世界雨林面积的一半，占全球森林面积的20%，是全球最大及物种最多的热带雨林。亚马孙雨林被人们称为“地球之肺”和“绿色心脏”，“世界动植物王国”等。 The Amazon rainforest: a natural treasure 1. What will be talked about in the text accordi