Unit 4 Scientists who changed the world Extended reading 教学设计-2023-2024学年高中英语译林版（2020）必修第三册

Unit 4 Scientists who changed the world Extended Reading The Value of Science 内容分析： 本板块的文章改编自一篇著名科学家的公开演讲，语篇的主题是科学的价值。作者通过自问自答，条理清楚、由浅入深地从三个层面回答了“科学价值何在”这一问题。阐明了科学家的责任所在，也鼓励了同学们争做社会栋梁。 教学目标： By the end of this section, students will be able to: 1.understand the main idea of each paragraph; 2.analyze the language and rhetorical devices used in the lecture; 3.explain the value of science. 教学重难点： 1.To help students understand the structure of the whole passage; 2.To help students analyze the language in a speech; 3.To guide students to explain the value of science. 教学过程： Step 1 Lead-in Do you think science is good or evil? What do you think are the value of science? Step 2 Figure out the structure of this lecture transcript Introduction: paras.1-2: Introducing the topic Main body: paras. 3-6: Three values of science Conclusion: para. 7: Duty of scientists →Let’s see the details. Main body: paras. 3-6 Para.3: Scientific knowledge enables us to do and make all kinds of things. Para.4: Science can provide us with intellectual enjoyment. Para.5-6: Scientists have the freedom to doubt. Step 3 Careful reading Read paras. 1 -2 and answer the questions. 1.The author talked about his personal experience in paragraph 1 and 2. Please summarize his experience. When he was younger, he thought science would make good things for everybody. During the war he doubted that some evil may be involved in science. Later he thought long about the value of science and finally tried to answer this in this talk. 2.What are the functions of these two paragraphs? To introduce the topic and arouse audience’s interest. Read para. 3 and answer the questions. 1.How many times is the pronoun “it” used in this paragraph. What does “it” refer to in each case? 5 times. The first two (line 12) refer to “making good things” and the final three (line 14 and 16) refer to “scientific knowledge”. 2. How do you understand the sentence “scientific knowledge enables us to do and make all kinds of t