Unit 1 Science and scientists Reading and Thinking 备课包-2024-2025学年高中英语人教版（2019）选择性必修第二册

清远崇文高中分课时教学设计 执教老师 李昕蓉 班级 高二4班、5班 科目 英语 授课课题 普通高中英语（2019版）选择性必修第二册 Unit1 Science and Scientists 教学设计 Reading and thinking 单元课时 共 5 课时 本节课时 第 2 课时 项目 内容 二次备课 教学 目标 教材 分析 教材分析： 本文是一篇按照时间顺序记叙时间发展过程的叙事性文本，时间线索是明线，而科学研究的步骤是文章叙述的暗线。文章通过引导学生分析约翰·斯诺探究霍乱病原、切断感染源，并最终阻止霍乱流行的过程与方法，促使他们思考和梳理科学研究的基本步骤和常见方法，理解质疑精神在科学研究中的重要作用。 教学目标： (1) 通过阅读，能够把握文章的文体结构和行文特点。 (2) 通过阅读，能够把握文本的时间线索，梳理科学研究的基本步骤。 (3) 通过阅读，能够学习科学精神，理解质疑精神的意义，学会批判性地思考，形成自己的观点与看法。 课堂 导入 1.Show pictures about Covid-19. What disease can you think of ? Covid-19  epidemic 2.How did people control the spread of Covid-19?   By using epidemic tracking map. （Purpose: 通过提问，激活已有知识，导入对流行性疾病的应对方式。） 3.Discuss the following stages of scientific research in groups. What order would you put them in? . （Purpose: 通过填序号，鼓励学生思考科学研究的步骤。） 4. Predict the passage according to picture and title. （Purpose: 通过标题和图片的解读，鼓励学生预测文章内容。） 此环节预设时长：5 minutes 学 生 活 动 - 文章脉络结构 学 生 思 考 1.Check prediction What’s the main idea of the passage? A. How John Snow found the cause of cholera and defeated it. B. The cause of cholera was polluted water. C. The source of all drinking water should be examined. D. John Snow was a well-known doctor in London. 2.Match the main idea with each paragraph. Para1 John Snow desired to destroy cholera. Para2 John Snow decided to prove the second theory. Para3 John Snow began his study by marking on the map. Para4 Truth of the infection of cholera. Para5 John Snow’s contributions. 3.Summarize the key words of each part. Paragraph(s) Main idea 1 What? Who? 2—3 How? 4 The truth 5 Results and significance （Purpose：使学生归纳文章整体大意和每一段的主旨大意，从而能够整体把握文章内容和框架。） 此环节预设时长： 5 minutes 出示评价量表学生 讨论 (设计目的：学生了解评价量表之后，制作出文章的思维导图。） 此环节预设时长： 2 minutes 学生 展示 Students will show their mind maps an the stage and others will give them some comments. (设计目的：学生展示思维导图，把握文章结构与内容，并能一起探讨思维导图中的优缺点，获得更大的启发。） 此环节预设时长： 3 minutes 教师 依据 评价 量表 点评 讲解 评价量表： 思维导图： 此环节预设时长：5 minutes 学生活动- 学习文章细节 学 生 思 考 Para1 Fill in the blanks. Para2 How did the doctors in those days explain how cholera spread? Two contradictory theories. Para3 Para4 此环节预设时长：8minutes 出示评价量表学生 讨论 此环节预设时长： 3 minutes 学生 展示 Students will show their opinions and debate with others. (设计目的：学生展示观点，并且与他人进行讨论，从而获得更大的启发。） 此环节预设时长： 5 minutes 教师 依据 评价 量表 点评 讲解 评价量表： 此环节预设时长： 5 minutes 课堂 检测 教材P3 Activity3, 4, 5 此环节预设时长： 5 minutes 课堂 小结 Summary： After learning about the passage, the teacher will invite some students to conclude what they have learned today. 此环节预设时长： 2 minutes 课后 作业 选择性必修二 测试卷 板书 设计 教学 反思 学科网（北京）股份有限公司 $$ Unit1 Science and Scientists Reading and Thinking P2 John Snow Defeats “King Cholera” What disease can you think of ? Covid-19  epidemic   It’s a scientific matter. How did people control the spread of Covid-19?   Epidemic tracking map. ______ analyse the results ______ ask a question ______ draw a conclusion ______ collect data ______ find a problem ______ find supporting evidence ______ think of a method Discuss the following stages of scientific research in groups. What order would you put them in? It is a deadly disease which is hard to cure. John Snow Defeats “King Cholera” Who How What What’s the main idea of the passage? A. How John Snow found the cause of cholera and defeated it. B. The cause of cholera was polluted water. C. The source of all drinking water should be examined. D. John Snow was a well-known doctor in London. John Snow Defeats “King Cholera” Check prediction Para1    John Snow began his study by marking on the map. Para2    John Snow decided to prove the second theory. Para3    John Snow desired to destroy cholera. Para4    John Snow’s contributions. Para5    Truth of the infection of cholera. Match the main idea with each paragraph. Paragraph(s) Main idea 1 2—3 4 5 Summarize the key words of each part. What? Who? How? The truth Results and significance What? Who? How? The truth Results and significance 给分点 段落划分正确 提取关键词 分数步长 部分正确：1-2 分 正确无误：3分 错误（提取错误、拼写）：1分 关键词匹配正确并且无错误：5分 Para1 What? Who? Cholera What: It is one of the most feared _______in the world, because it causes ______ diarrhoea, dehydration, and ___________. When:_____________________ Where: ________ What result: Millions of people _________ the disease. diseases severe even death In the early 19th century Europe died from John Snow Who: A _______ doctor who even ___________ Queen Victoria when she gave birth. What: He had a desire to _________ once and for all. famous attended to destroy Para2   Para2 —3 How? How did the doctors in those days explain how cholera spread? Find a problem (1) ________  caused the disease (2) Cholera was caused by an _______ from ______ in _____________. Bad air infection germs food or water  Snow subscribed to the second theory. Para2 —3 How? What did John Snow investigate when another outbreak hit London in 1854? Ask a question Which house numbers had more than four deaths in Broad Street?   Which house numbers had no deaths in Broad Street? Para2 —3 How? What method did Snow use? Think of a method Part of Snow’s Cholera Map 16, 37, 38 and 40 Where is the pump?   14, 20, 21, 25, 27, 28 and 34 Near house number 39 in Broad Street. Collect data Analyze the results Snow suspected that the water from the pump was to blame. Para2 —3 How? Find supporting evidence Draw a conclusion Solution Discuss the following stages of scientific research in groups. What order would you put them in? Discuss the following stages of scientific research in groups. What order would you put them in? Draw a conclusion Collect data Ask a question Find a problem Analyze the results Find supporting evidence Think of a method It was believed that cholera was caused by bad ____ or germs in____________. A Snow ____________ the places where the people who _______ had lived. B Many deaths occurred near the _____________ in Broad Street. Some people _________ drunk the water from the pump, and lived. A woman and her daughter died in another part of London after ____________________. The pump water carried ______________ The ________ of the pump was removed. theories process air food or water died marked on a map water pump hadn’t drinking water from the pump cholera germs handle Solution Conclusion Find supporting evidence Read Para. 2-3 again and complete the chart below. C D E conclusion evidence process solution theories What caused the outbreak of cholera in London?  A. Bad air             B. Water infected by raw waste        C. Polluted air         D. Water polluted by the air Para4 The truth Snow transformed the way scientists ________. Para5 Contributions and Significance What contributions did John Snow make? Contributions ____________ began to sell clean water. Water companies The threat of cholera around the world _________. decreased He helped people know how to _______cholera. prevent study diseases prevent 1. Q: What ______________________________? A: Snow thought that cholera was caused by germs in food or water. 2. Q: Why __________________________________________? A: Snow had the handle of the pump removed so that it could not be used. 3. Q: How ____________________________? A: The cholera threat was defeated thanks to the work of John Snow. caused cholera according to Snow did Snow have the handle of the pump removed was the cholera threat defeated Write out the questions according to the answers. What scientific spirits can we learn from John Snow? a questioning mind 质疑精神 innovation/ creativity 创新 careful 认真的 devoted 全心全意的 determined 坚定的，有决心的 给分点 提炼品质类词语 找到文章对应内容 分数步长 符合意思且拼写无误 每个词语得1分 根据文章原文正确提炼词语 每个词语加1分 See you next time! $$