Unit 4 Global warming Reading 课件（21张PPT）

课件21张PPT。Reading Unit 4 Global warmingThe Buildings fell down.Floods happened in the city.The sea level rose by several metres. title biggertwo columnsObservationmagazineWhat kind of article is it?PredictionIf you are the writer, what will you write in this passage?Main idea: _____(who) from _____(magazine) explores the problem of _____.Sophie ArmstrongEarth Careglobal warmingRead the first paragraph quickly and get the main idea of the passage.Fast readingTask One effect conclusion cause introductionPart 1 (Para. 1)Part 3 (Para. 6)Part 4 (Para. 7)Part 2 (Para.2-5)Read the whole passage quickly and match the main idea with each part.Introduce the topic of global warming.Analyze the cause of global warming.Conclude the passage by asking what we should do about global warming.Fast readingTask TwoList two different attitudes towards the effects of global warming.Careful readingRead para.2-5 carefully and answer the following questions.1.What are the two graphs about? 2.What is the cause of global warming? 3. What in the atmosphere traps the heat from the sun and warms the earth?Task OneCareful reading1.What are the two graphs about?Graph 1 shows the temperature increase of one degree Fahrenheit between 1860 to 2000.Careful reading1.What are the two graphs about?Graph2 shows the carbon dioxide content in the atmosphere from 1957 to 1997.Careful reading2.What is the cause of global warming?The coal power stationThe oil plantThe burning of fossil fuels.3. What in the atmosphere traps the heat from the sun and warms the earth?Carbon dioxide, methane and water vapour.Greenhouse effectCareful readingRead para.6-7 carefully and answer the following questions. 1. What is Dr. Foster’s opinion about global warming? 2.What is Hambley’s opinion about global warming?Task TwoCareful readingTask Two 1. What is Dr. Foster’s opinion about global warming?He thinks that the trend would be a catastrophe. The sea level would rise by several metres. There might be severe storms, floods, droughts, famines. Some species could disappear and diseases might spread quickly.Careful reading2.What is Hambley’s opinion about global warming?Task TwoIt will be a mild change and there will be more benefits than bad consequences. In his view, plants will grow quicker; crops will produce more, which will result in more animals. Therefore, people will lead a better life.Retellingwarmerfossil fuelscarbon dioxidegreenhousecatastropherisequickermoregreaterbetterDiscussionAs students, what can we do about global warming? Discuss in groups and then write down your ideas. Homework Write a report to your school about global warming and appeal for more people to protect the environment. Thank YouThere’s a place in your heart And I know that it is love And this place could Much brighter than tomorrow And if you really try You’ll find there’s no need to cry In this place you’ll feel There’s no hurt or sorrowHeal the world