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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,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,.,Learning objectives:,By the end of the class,you will be able to,Learning Objectives:,What do you know about global warming?,Lead in,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.,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.,Read the pictures,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,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 authors 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.,keys,Read the text and answer the questions:,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 authors 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.,keys,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 cause and effect relationships,explain a new idea of concept,and so on.When you read an essay about scientific issues,you can try drawing a diagram,which will not only allow you to visualize the problems more clearly but also can help demonstrate your creative thinking and problem-solving.,1.What examples of extreme weather and disasters do you know?,Make a list of them.,2.Do you think it is human activity that caused global climate change?Give your reason?,3.Who should take responsibility to address this climate change?What should you do to do to tackle it?,Group discussion,1.What examples of extreme weather and disasters do you know?,Make a list of them.,Tsunami,floods,landslides,sandstorms,thunderstorms,earthquakes,hail,hot waves,cold waves,typhoons,tornados,hail,keys,2.Do you think it is human activity that caused global climate change?Give your reason?,Yes.Human beings burn too much fossil fuels and produce large quantities of carbon dioxide,causing the temperature to go up steadily.,keys,3.Who should take responsibility to address this climate change?,It is everyones duty to take care of the earth and do our part to tackle global warming.,keys,Take the stairs instead of elevator,What you should do to do to tackle it?,Dont litter,What you should do to do to tackle it?,Go to school by bike instead of by car/bus,What you should do to do to tackle it?,Turn off the lights when leaving,Cover the pot while cooking,What you should do to do to tackle it?,Use handkerchief instead of facial tissue,What you should do to do to tackle it?,Use basket or environmental basket bag instead of plastic bag,;buy thins economic,with energy;use recycle goods or items.,What you should do to do to tackle it?,watch less TV,What you should do to do to tackle it?,plant more trees,What you should do to do to tackle it?,eat more vegetable,What you should do to do to tackle it?,Climate is rising.,Evidence,damages,Potential further changes,causes,Summary,warning,actions to tackle the issue,Homework,Write a co
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