Unit 4 Global Warming Reading 导学案1-人教选修6精品

Unit 4 Global warming

Reading 导学案1

学习目标

To read the passage and master the general idea of it

学习重点

To know something about the great scientists.

学习难点

How to help the students master the general idea of the passage.

学生活动

二次备课

目标或导入

Lead in Some pictures and then tell ss from the following pictures, you will know where all this energy comes from.

Windmills an oil refinery a coal power station

自学与诊断

Sample lists Things that use energy light heating

coal non-renewable oil non-renewable Pre-reading Skim and answer :

1. What is the greenhouse made and used for?

Sources of energy Renewable /non-renewable

2. How does it work?

3. What are the greenhouse gases? Answers:

1. A greenhouse is made of glass and is used for growing plants, especially during cold weather. 2. The air inside is warm because the glass traps the heat from the sun and keeps it from escaping. This makes the greenhouse heat up and so the plants can grow throughout the cold period. 3.In the atmosphere surrounding the earth there are gases called greenhouse gases, including carbon dioxide, methane (甲烷, 沼气) and water vapor. While reading : Part1 ( Paragraph 1)

Introduce a debate over the issue of global warming. Part2 (Paragraphs 2---3)

Illustrate how global warming comes about. Giving examples, using graphs, explanation. Part3

(Paragraphs 4---5)

List two different attitudes among scientists towards global warming. Part4 (Paragraph 6)

It’s up to readers to think and decide whether people should do something about global warming or not.

总结与升华

Careful-reading II. Choose the best answer.

1. The first graph in the text is used to ________. A. attract readers’ attention

B. introduce the topic of global warming C. act as an example

D. support the opinion and make it more convincing 2. The author probably agrees that ________.

A. global warming is good for us

B. we can do nothing about global warming

C. catastrophes will happen if the globe keeps on warming

D. much remains to be found out about the effects of global warming

达标检测题

Debate Instructions

● Get into groups of six. Decide which three in your group are going to agree with the statement (Group A) and which three are going to disagree with the statement (Group B).

Group A discuss why they agree with the statement； Group B discuss why they disagree. ● Group A and B get together. Tell each other the reasons for agreeing or disagreeing with the statement

课后反思：