Unit 3 Conservation Lesson 1 The Sixth Extinction 教学设计-2025-2026学年高二英语北师大版选择性必修第一册

北师大版（2019）选择性必修一 Unit3 Conservation Lesson1 The Sixth Extinction Teaching Plan (Reading) Text Analysis： 【Text type】Exposition 【Theme】Human and Nature---protecting the earth 【Thematic meaning】The destruction of the earth's ecological environment by human activities is becoming more and more serious, which will lead to serious consequences. Through the potential sixth mass extinction, this passage makes students realize the earth is our home, the earth and human beings are inseparable "community of destiny ", and to protect the earth is to protect ourselves. The earth crisis forces us to take responsibility and act actively. 【What】This article examines the impact of Earth's first five mass extinctions and the reasons behind the potential sixth mass extinction. The man-made causes and dire consequences of the sixth mass extinction are analyzed. At the end of the article, it clarifies that avoiding the sixth mass extinction lies in human beings, and appeals to us from what aspects we should do to protect the earth and save ourselves through specific examples, calling on us to take active action to protect the earth from individuals. 【Why】By introducing the human causes and dire consequences of the potential sixth mass extinction, the author aims to arouse students' awareness of crisis, cause them to reflect deeply and stimulate their sense of responsibility and environmental awareness. 【How】This article is an exposition.Its purpose is to persuade readers to do their part to protect the earth, starting from the things around them. The structure of the article is clear, and the writing order of “problem - reason analysis - solution - appeal” is adopted. The logic is clear and easy to understand. Students analysis Students have learned the relevant content through unit5 Human and Nature and Unit8 Green Living, so they are familiar with the topic and have a certain English language foundation.Students understand that the earth is being destroyed, but need to have a deep understanding of the extent and consequences of the damage, think about and be able to propose more ways to protect the earth. Learning Objectives By the end of this lesson, students will be able to: 1. find the causes, effects and solutions of the sixth extinction; 2. understand the structure of the text and analyse the author’s intention; 3. discuss and explain how to avoid the sixth extinction, and call on everyone to take active action to protect the Earth. Learning Important and Difficult points Learning important points: 1. Analyze the framework and the main information of the text, and understand the stylistic features and structure of the expository essay; 2. Consider whether the sixth extinction has happened and explain the solutions to avoid the occurrence of the sixth extinction. Learning Difficult Point: Connect life to elaborate and add solutions to avoid the sixth extinction. Learning Activities: I. Activate and share Enjoy a picture of dinosaurs and discuss the reason for their extinction. II. Read and Explore 1. Skimming: Identify the style of the text. (IW) A.   Narrative  ★ B.  Exposition B.   Practical writing  D.  Argumentation 2. Read the text about the extinction quickly and get the main idea of each paragraph. (IW\PW) Paragraph 1: Background history of the sixth extinction Paragraph 2: Causes of the sixth extinction Paragraph 3: Possible consequences of the sixth extinction Paragraph 4: What we can do to prevent the sixth extinction 3. Read the text more carefully and work in groups of 4 to find out more detailed information of each part. (IW\GW) III. Think and share Discuss the following questions in groups and share ideas in the class. (GW) 1.What’s the author’s purpose in writing this passage? 2.What could we do in our daily life to avoid the sixth extinction? IV. Homework Design a poster with your group members to call on students to take action to protect our planet. 学科网（北京）股份有限公司 $