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课件网) Period 1 : Reading and Thinking Discuss Climate change Unit 3 ENVIRONMENTAL PROTECTION 01 02 03 By reading, explain causes and negative effects of global warming. By teamwork, present how to solve the problem of global warming in groups. Be aware of the importance of cutting greenhouse gases and take effective action to do it. By the end of the class, you will be able to Learning Aims Lead-in How much do you know about global warming What do you know about global warming The effects are destructive as follows: The sea level to rise. Severe storms, droughts, famines, the spread of diseases, and destruction of species. Wide animals died because of starvation. Forest fire occurs frequently because of the extreme hot weather. Lead-in What is the graph about What information can you get from it The graph is about the change of global Surface temperature. It shows us that the global temperature is rising steadily and continuously. 2. What happened in the picture Do you know what caused it A polar bear was dead and it is “skin and bones.” The ice is melting on the mountain. Global warming causes the melting of iceberg and some polar bears Suffer from the lack of food. Fast-reading Read the text and sum up the main idea of each paragraph: 01 02 03 04 05 Global climate is changing dramatically. An alarming case about a bear starved to death. What is causing the increase in the global average surface temperature The destruction of the rise in temperature and the warning. Further possible changes to the global climate and our duty. Fast-reading . Read the text and answer the questions: 1.What is the evidence of global warming 2.Why is the “natural ”greenhouse effect important and necessary 3.What are the consequence of high greenhouse gas emissions 4.Why did the author mention the climate scientists’ warning 5.What is the author’s purpose of writing the text Read the text and answer the questions: What is the evidence of global warming Warming ocean and atmosphere; melting and rising sea level; the starved polar animals; the extreme weather and natural disasters. 2.Why is the “natural ”greenhouse effect important and necessary Because greenhouse gases trap heat and keeps the earth warm and habitable. 3.What are the consequence of high greenhouse gas emissions People produce huge amounts of extra greenhouse gases and more heat energy is trapped, causing the temperature to go up. 4.Why did the author mention the climate scientists’ warning Because the writer wants to warn us of the urgency of taking appropriate actions to tackle the issue. 5.What is the author’s purpose of writing the text To arouse our awareness of the problem of the rise of temperature and taking proper actions to address the global warming. Read the text again and create a diagram describing how the greenhouse effect works. Diagrams are very useful tools that can be used to brainstorm idea, map out processes, show c ... ...
