高中英语人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists优质教案设计

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，黑板，粉笔

教学过程：

一、Pre-reading

1. Greeting

2. 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：

① Who was John Snow?

② What is King Cholera?

③ 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- reading

1. 学生活动：

2. 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。

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? (It's Snow's cholera map.)

What 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 Street? (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。

活动4：1 conclusion  D

2 evidence  C

3 process  B

4 solution  E

5 theories  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 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-reading

1. 教师活动：分组讨论活动5，完成后在课堂展示。

①Q: What did Snow think cholera was cause by?

A: Snow thought that cholera was caused by germs in food or water.

②Q: 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.

③Q: 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。

① What was the most important tool Snow used to defeat cholera? What common medical tools, e.g., a microscope, didn't he use? Why?

Maps and statistics. He didn't use the common medical tools, e.g., a microscope. Because he didn't do the research in the lab but in the communities.

② How has John Snow's 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。