1、普通高中教科书普通高中教科书 英语英语 English选择性必修选择性必修Unit Unit 3 3 Environmental Environmental protectionprotectionReading & Thinking To discuss climate change To learn to identify the style of this text and infer the writers purpose To learn to draw a diagram To think about how we can do to deal with climate chang
2、eLook at the following pictures and enjoy some pictures about the topic of climate change ,then Discuss climate change.The polar ice sheet is melting and the sea levels are rising. polar bear The polar bear appeared to have starved and died floods/flooding droughtsSea-level rise Lead to extreme weat
3、her which in turn impacts farming and harvestsDisrupt the balance of the ecosystemDestruct wildlife Deforestation1、What is the graph about? What information can you get from it?2、Have you ever seen the photo before? What might be the story behind it?Before you read, look at the graph and the picture
4、 on Page 26 and discuss these questions in groups.1、What is the graph about? What information can you get from it?Before you read, look at the graph and the picture on Page 26 and discuss these questions in groups.I think this photo was taken in either the Arctic or Antarctica,as those places have l
5、arge ice sheets like this.2、Have you ever seen the photo before? What might be the story behind it?Before you read, look at the graph and the picture on Page 26 and discuss these questions in groups.The photo makes me think of the global warming.Listen to the record and answer the questions.Q 1.What
6、 happened to the polar bear in the photo? Why did the writer write about it ?Q 2.Why is the“natural”greenhouse effect important and necessary ?Q 3. What are the consequences of high greenhouse gas emissions?Q 4.Why did the author mention the climate scientist warning?Q 5.What is the authors purpose
7、of writing this text?Listen to the record and answer the questions.Q 1.What happened to the polar bear in the photo? Why did the writer write about it ?Q 2.Why is the“natural”greenhouse effect important and necessary ?The polar bear in the photo died of starvation. The writer wrote about it because
8、it showed one of the effects of rising temperatures due to climate change.The natural greenhouse effect is important because it warms the Earths surface and keeps it habitable.Listen to the record and answer the questions.Q 3. What are the consequences of high greenhouse gas emissions?Q 4.Why did th
9、e author mention the climate scientist warning?High greenhouse gas emissions lead to more heat energy being trapped in the atmosphere and rising temperatures.The author mentioned the climate scientists warning because it is essential that we take action and so it needs to be brought to everyones att
10、ention.Listen to the record and answer the questions.Q 5.What is the authors purpose of writing this text?The author s purpose is to inform the reader and inspire them to do whatever they can to deal with this problem.1. What type of writing is this passage?A. Argumentative writingB. Narrative writi
11、ngC. Expository writingD. Advertising writingC2. In which part of a newspaper or magazine may we find this passage?A. Entertainment B. EconomyC. Education D. EnvironmentDRead the passage quickly, and choose:Read the text quickly, and figure out the main idea of each paragraph.Para. 1The earth is get
12、ting warmer.Para. 2A specific example of the results of climate changePara. 3A major reason of global warming is “man-made” greenhouse effect.Para. 4The danger of rising temperaturePara. 5We should seize every opportunity to reduce global warming.Q1: 1 What examples of extreme weather and disasters
13、do you know? Can you make a list?Q2: Do you think climate change is the result of human activity? Give your reasons. Q3. Who do you think should take responsibility for dealing with climate change?What can we do?Q1: 1 What examples of extreme weather and disasters do you know? Can you make a list?Th
14、ere are sadly many examples of extreme weather and disasters I know of, such as the extreme rainfall in France and the drought in East Africa in 2014. There were also heatwaves on nearly every continent due to climate change.Q2: Do you think climate change is the result of human activity? Give your
15、reasons. I do think that climate change is the result of human activities because the majority of scientists also think so, and also because global temperatures have followed the rise in global emissions and population.Q3. Who do you think should take responsibility for dealing with climate change?W
16、hat can we do?I think we all need to take responsibility fbr dealing with it. Individuals can change their behaviour and try to reduce their carbon footprint, while companies and governments can do the same on the larger scale.post-reading: read the text again and think about how the greenhouse effe
17、ct worksGreenhouse gases can trap some of the heat, which can keep Earths climate warm and habitable. Without this process, Earth could not sustain life.1. What are the “greenhouse gases”? In the atmosphere surrounding the earth there are gases called “greenhouse gases”, including carbon dioxide, me
18、thane (甲烷甲烷, 沼沼气气).2. How do you understand “greenhouse effects”? They trap the heat from the sun, which causes the temperature of earth goes up. Related questions:3. What are the consequences of high greenhouse gas emissions? Possible answers: Earths surface temperature to rise extreme weather natu
19、ral disasters low sea-ice levels causing deaths economic losses4. Why did the author mention the climate scientists warning?One possible answer: The topic is a scientific one, so adding the climate scientists warning can make the authors opinion (or writing) more persuasive form the scientific aspec
20、t. On the other hand, we readers may feel more reliable about the authors attitude if it is based on the research of some scientists.5. What is the authors purpose of writing this text?One possible answer: The author hopes we can pay attention to the climate change and do something to stop it. For h
21、e or she writes “We as individuals can also reduce our carbon footprint” and “It is our responsibility to seize every opportunity to educate everyone about global warming.”Read the article again and create a diagram describing how the greenhouse effect works.图表；图解图表；图解Draw a diagramDiagrams are very
22、 useful tools that can be used to brainstorm ideas, map out processes, show cause and effect relationships, explain a new idea or concept and so on. When you read an essay about scientific issues, you can try drawing a diagram, which will not only allow you visualise the problems more clearly but al
23、so can help demonstrate your creative thinking and problem-solving.Greenhouse gases A greenhouse keeps warm by physically trapping the air inside and preventing convection (对流对流). The atmosphere helps keep the planet warm by trapping outgoing radiation instead.1.Writing an summary of the passage in about 100 words.2.Read more information about environmental protection online, and then exchange information with their friends.
