Unit 1 Section A Reading and Thinking 教案- 人教版(2019)选择性必修第二册.docx

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1、Unit 1 Science and Scientists Reading and Thinking教学设计科目：英语 课题：Reading and Thinking 课时：1课时教学目标与核心素养：知识目标：通过阅读，了解约翰斯诺是如何打败“霍乱王”的。能力目标：学生学会在阅读过程中梳理文章信息，分析文章结构。情感目标：通过了解约翰斯诺探究霍乱病源、切断感染源，并最终阻止霍乱的事件，理解科学中质疑精神。教学重难点教学重点：引导学生研读语篇、梳理信息、分析结构，了解科学研究的基本步骤，并学会在阅读中发问。教学难点：理解质疑精神在科学研究中的重要作用，思考科学研究对人类的影响。课前准备：多媒体，

2、黑板，粉笔教学过程：一、Pre-reading1. Greeting2. Leading-in教师活动：Let students discuss following questions in groups._5_analyse the results _2_ask a question _7_draw a conclusion _4_collect data _1_find a problem _6_find supporting evidence _3_think of a method学生活动：阅读文章标题，思考下列问题： Who was John Snow? What is King C

3、holera? What did John Snow do about King Cholera?活动目的：通过文章标题猜测文章主要内容。二、 While- reading1. 学生活动：Paragraph(s)Main idea1What? Who?2-3How?4The truth5Results and significance2. 浏览2-3段，完成活动二，找出对应活动1中七个步骤的语句。OrderStage Key words or sentences1find a problemtwo contradictory theories2ask a questionin two part

4、icular streets the cholera outbreak was so severe. . .find out why3think of a methodmarking on a map4collect datahouse numbers 16, 37, 38,and 40;20 and 21 Broad Street; 8 and 9 Cambridge Street5analyse the resultsmultiple deaths near the water pump;some households had had no deaths6find supporting e

5、videncea woman and her daughter had died; the woman liked the water. . .she had it delivered to her house7draw a conclusionAs a result of this evidence, John Snow was able to announce that the pump water carried cholera germs.3. 教师活动：通过问题引导学生读懂课文插图。What kind of map is it? (Its Snows cholera map.)Wha

6、t does mean? (1 death)What does PH mean? (public house)What does 30, 31, . . .refer to? (numbers of houses)How many deaths were there in house number 19 in Broad Street? (2)Which house numbers had more than four deaths in Broad Street? (16, 37, 38, and 40)Which house numbers had no deaths in Broad S

7、treet? (14, 20, 21, 25, 27, 28, and 34)Where is the pump? (near house number 40 in Broad Street) 3. 学生活动：完成活动3和活动4。D: The pump water carried cholera germs.C: Many deaths occurred near the water pump in Broad Street.Some people had not drunk the water from the pump, and lived.A woman and her daughter

8、 died in another part of London after moving away.A: It was believed that cholera was caused by bad air or germs in food or water.4.5.E: The handle of the pump was removed.B: Snow marked the places where the people who died had lived.6.7.活动4：1 conclusion D2 evidence C 3 process B 4 solution E 5 theo

9、ries A 4. 精读第4-5段，回答下列问题。What caused the outbreak of cholera in London in 1854? (The water which came from the River Thames and had been infected by waste.)Was cholera destroyed completely? (No.)How can we prevent cholera? (By drinking pure or boiled water, and eating clean food.)What contributions

10、did John Snow make to science? (He helped people know how to prevent cholera. He transformed the way scientists study diseases by using maps and statistics. )三、After-reading1. 教师活动：分组讨论活动5，完成后在课堂展示。Q: What did Snow think cholera was cause by?A: Snow thought that cholera was caused by germs in food o

11、r water. Q: Why did Snow have the handle of the pump removed?A: Snow had the handle of the pump removed so that it could not be used.Q: How was the cholera threat defeated?A: The cholera threat was defeated thanks to the work of John Snow.2. 分组讨论活动6，鼓励学生在课堂展示自己的答案。 What was the most important tool S

12、now used to defeat cholera? What common medical tools, e.g., a microscope, didnt he use? Why?Maps and statistics. He didnt use the common medical tools, e.g., a microscope. Because he didnt do the research in the lab but in the communities. How has John Snows work affected our daily lives?His work can protect people from being killed by the severe disease. Further more, it told us we should protect our environment from being polluted.四、Summary 总结课上所学，理解科学上的质疑精神。作业布置：写一篇自己的有趣的科学经历的文章。