高中英语北师大版模块8 教学课件 Unit 22Lesson 1

1、Unit 22 Lesson 1 Global Warming北京师范大学出版社 | 选修八Teaching Objectives 1. To have a better understanding of what global warming is 2. To know the serious consequences that global warming may cause3. To realize the importance that we need to take action北京师范大学出版社 | 选修八Words previewconsensusbounceadvocateag

2、ricultureCoincidenceCondemnreservationsacrificen. 一致的意见vi. 反弹vt. 主张,提倡n. 农业n. 巧合vt. 宣判死刑,注定消灭n. 保存,存疑vt.&vi. 牺牲,献出北京师范大学出版社 | 选修八 Whats the main cause of global warming? Which countries do you think contribute more to global warming? Why? Developed countriesb) Developing countries北京师范大学出版社 | 选修八

3、Which contribute more to global warming?London New York Nigeria 北京师范大学出版社 | 选修八北京师范大学出版社 | 选修八 Fast reading1. Scan the passage, and match the main idea with the paragraph numbers.Para. 1Para. 2Para. 3Para. 4Para. 5Draw readers attention to the topic by asking question.What should human beings do.Wha

4、t is global warming?Consequences of global warming.The cause of global warming.北京师范大学出版社 | 选修八1) What is global warming? Global warming is an average increase in the Earths atmosphere. 2) What human activities are causing global warming ? Industry, agriculture, transportation, cutting down of trees

5、and the burning of fuels are causing global warming. Read the text carefully and answer the following questions.北京师范大学出版社 | 选修八3) By how much has the global average temperature increased in the last 100 years? By 1F (One degree Fahrenheit) 4) Are greenhouse gases necessary for life on Earth? Yes, th

6、ey are. Because they trap heat in the atmosphere of the Earth. Otherwise the Earth would be cold and unsuitable for life.北京师范大学出版社 | 选修八5) How can we help solve the problem of global warming? We can make small changes like taking public transport, recycling, using low-flow shower heads, and buying e

7、nergy-efficient light bulbs to help stop global warming.北京师范大学出版社 | 选修八Careful reading Listen to the text carefully, and fill in the table according to it.2. Reading comprehension questions.北京师范大学出版社 | 选修八Para.1Introduction: Human beings are causing_ in the Earths _ and it is believed that _ could b

8、e one of the biggest _ in the 21st century.Para.2Definition: Global warming refers to an average _ in the Earths temperature that, in turn,_ climate change.Para.3Causes: Many experts insist that the blame for this global warming can mostly be _ on human activities. Para.4Consequences: If we continue

9、 to produce greenhouse gases in such huge quantities, there will be more_ such as flooding, heat waves and _.Para.5Action: All governments have a _ to reduce the amount of carbon dioxide and each person should play their _.changesclimateglobal warmingenvironmental problemsincreaseleads topinneddisas

10、tersdroughtsresponsibilitypart北京师范大学出版社 | 选修八What do we learn from todays lesson?What will we do to protect our environment in our daily life? What will we do every day to help reduce greenhouse gases?Group discussion北京师范大学出版社 | 选修八北京师范大学出版社 | 选修八北京师范大学出版社 | 选修八Buy the recycled productsrecycled products北京师范大学出版社