Unit 1 Nature in the balance Welcome to the unit & Reading 教学设计-2023-2024学年高中英语译林版（2020）必修第三册

Unit 1 Nature in the balance Welcome to the unit & Reading (I) · 内容分析： 本板块围绕单元话题以“保护我们的唯一家园——地球”创设情境，展开一系列听、看、说、写等任务活动。任务活动设计围绕一首英文歌曲展开，旨在让学生明白：人类应该对大自然心怀感恩，对所造成的环境危害心存愧疚，并果断采取措施来保护我们的家园。Welcome to the unit板块通过歌曲的形式，着重培养学生听和读的语言技能——婉转悠扬的曲调、简单易懂的歌词，可以让学生在学唱的过程中激发探究本单元的兴趣，为单元学习做好热身。阅读板块是纪录片脚本，内容围绕亚马孙雨林展开，包括亚马孙雨林的基本信息、动植物资源、生物多样性、对地球的重要作用，以及所面临的危险等。 · 教学目标： By the end of this section, students will be able to: 1. sing the English song; 2. know the harm we have done to the Earth; 3. understand the significance of environmental protection. · 教学重难点： 1. Understand the concept of “balance of nature” from two ways； 2. Learn to sing the song “The Earth is our only home.” after discussing questions concerning environmental protection； 3. Learn to use the basic data about the Amazon Rainforest to call on people to protect the “Lung of the Earth”. · 教学过程： Step 1 Lead-in Q1: What key words can you think of when we talk about balance of nature? Ecosystem, wildlife, rain forest, human being, pollution, environmental protection, species, survive, greenhouse effect, global warming, extinction, low carbon life and so on. Q2: Look at the slides, what are these animals? What is the relationship between them? Picture one: Jaguar and sheep Picture two: Hawk and bird They are predator and prey, they form the food chain in our nature. They are part of the ecosystem in our earth. Q3: What does this picture tell us? The number of predator and prey in nature is related. Q4: What does the concept “balance of nature” convey? The expression is often used one of two ways. Sometimes the balance is depicted as fragile, delicate, and easily disturbed. Other times it’s the opposite—that the balance of nature is so powerful that it can correct any imbalances on its own. Quote sharing: Q5: How do you understand Engels’ words about nature? Let us not, however, flatter ourselves overmu