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返回,返回,高二英语选修,6,Unit 4 Global Warming,The earth is becoming warmer and warmer.,Which of the following can cause global warming,ACDE,高二英语选修,6,THE EARTH IS BECOMING WARMER-BUT DOES IT MATTER?,.Listen to the text and sum up the main idea of each paragraph.,Para. 1,A,the cause of the earths becoming warmer,Para. 2 B,the consequence of burning fossil fuels,Para. 3 C,the increase of carbon dioxide,Para. 4 D,global warming will go on,Para. 5 E,puzzles about global warming,Para. 6 F,different attitudes to global warming,Para. 7 G. an introduction to the passage,The structure of the passage,List two different attitudes among scientists towards global warming.,. 1,Illustrate how global warming comes about.,. 2-5,Part 1(para.1),Part 2(para.2-5),Part 3(para.6),Part 4(para.7),An introduction of the passage,Puzzles about global warming.,Part 1:Para 1,1.Who wrote the magazine article,2.What is the name of the magazine,Earth Care.,Sophie Armstrong,Listen, read and think,Part 2 :Para 2-5,Listen, read and think,1. What is Graph 1 about,2. How has the global warming come about,Graph 1 shows the temperature _,from _ to _.,is increasing,1860,2000,It is _ _ that has,caused this global warming.,human activity,3. Greenhouse gases include _ .,water vapor B. natural gas,C. carbon dioxide D. methane,E. fossil fuels.,A,C D,Part 2 :Para 2-5,Listen, read and think,4. Read and fill in the blanks.,heat,sun,warm,Listen, read and think,Part 2,:,Para2-5,Greenhouse effect happens when gases trap _ from the _ and therefore _ the earth.,Part 2: Para 2-5,(1)The levels of CO have increased greatly over the past 150 years.,(2) Graph 2 shows CO content in the atmasphere,1957-1997.,(3) Most scientists accept the data made,by Charles Keeling.,(4) The amount of warming could be as high as,1 degree.,5. Do “T or “F exercise:,100-150,F,F,F,T,All,5 degrees,2,2,Listen, read and think,Part 3: Para.6,The different ideas between Dr. Janice Foster & George Hambley.,Dr. Janice Foster,George Hambley,Carbon dioxide has caused the global temperature to _. An increase of five degrees would be a _ and could be _.,More carbon dioxide is a _ thing,which makes crops _ and will en- courage _.,go up,catastrophe,very serious,positive,produce,a greater range of,animals,The author probably agrees that_.,actually global warming is good for human.,catastrophes will happen eventually due to global warming.,a lot remains to be found out about the effects of global warming,Part 4 : Para 7,Listen, read and think,Fill in the blanks according to the text.,Many scientists like Dr Janice foster believe that people have caused the increase in the earths temperature by _ (burn) fossil fuels like coal, natural gas and oil to produce energy whose byproducts _ (call) “greenhouse gas, the most important one being carbon dioxide. These gases trap heat _ the sun and therefore warm the earth, without _ the earth _(be) about thirty-three degree Celsius cooler than it is.,burning,are called,from,which,would be,But an increased amount of carbon dioxide _ (mean) that more heat energy tends to be trapped in the atmosphere _ (cause) the global temperature to go up.,On _ other hand, scientists like George Hambly predict that any warming will be mild with few bad _ (environment) consequences. In fact, more carbon dioxide is _ (actual) a positive thing.,means,causing,the,environmental,actually,What should we do to stop global warming,.,.,Try to reduce the use of motor vehicles,bike,running,Planting trees,Cleaning the rubbish,Assignment,1. Write an argumentation titled “Environment Protection based on the viewpoints in the text and yours.,2. Preview the language points in the text and find out your difficult points.,Lets make this world a better place !,Have a nice day. Good bye!,
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