Lesson1GlobalWarming (2).ppt

1、Lesson 1 Global Warming,consensus beyond beyond ones control *claim look ahead relevant refer (to) in turn lead to ray,n. 一致的意见 prep. 超出 超出的控制 vt. 声称 展望未来 adj. 有关的 指，意即 依次 引起，导致 n. 光线,Words & Expressions Review,Words & expressions review,Read after the tape and speak out the Chinese immediately.,bou

2、nce pin (on) agriculture coincidence condemn *drought federal reservation sacrifice take action,vi. 反弹 vt. 把责任加在某人身上 n. 农业 n. 巧合 vt. 迫使（某人）陷于不幸的境地 n. 旱灾 adj. 联邦的 n. 保护 vt.&vi. 牺牲；献出 采取行动,advocate recycle substitute threaten ahead of pancake hurricane,vt. 主张，提倡 vt. 回收利用 n. 代替品 vt. 威胁 在前面 n. 薄煎饼 n. 飓风

3、,To summarize the main idea and retell the passage 2. To learn to talk about global warming 3. To learn the new words and expressions,Objectives,1. What is it? 2. Whats the impact of it? 3. What has caused it? 4. What can we do to slow it down?,How much do you know about global warming?,Lets read th

4、e text to find answers to these questions.,for general ideas,Skimming,Match the headings.,Para. 1 Para. 2 Para. 3 Para. 4 Para. 5,What causes global warming What is global warming The introduction of the topic Solution Results of global warming,for specific information,Scanning,1) Which of the follo

5、wing is TRUE about greenhouse gases? A. Greenhouse gases will only do us harm. B. Greenhouse gases do more harm than good to humans. C. Greenhouse gases do more good than harm to humans. D. Proper greenhouse gases are quite necessary to the earth.,2) Which of the following is NOT mentioned as the re

6、sult of global warming? A. Typhoons. B. Serious diseases. C. Polar ice melting. D. Heat waves.,I. Choose the best answer.,II. Match the meanings of following words.,consensus bounce agriculture coincidence,a remarkable concurrence of events by chance,the science or practice of farming,move quickly u

7、p, back, or away from a surface after hitting,a general agreement,condemn reservation sacrifice advocate,to give a particular punishment, especially death,to give up (something important or valued) because of other considerations,to recommend or support publicly,the action of reserving something,III

8、. Answer these questions.,1. What is global warming? 2. What human activities are causing global warming? 3. By how much has the global average temperature increased in the last 100 years? 4. Are greenhouse gases necessary for life on Earth? 5. How can we help solve the problem of global warming?,Ch

9、eck your answers:,1. What is global warming? 2. What human activities are causing global warming?,Global warming is an average increase in the Earths temperature that leads to climate change.,Industry, agriculture, the cutting down of forests, the increase in transport and the burning of fuels are c

10、ausing global warming.,3. By how much has the global average temperature increased in the last 100 years? 4. Are greenhouse gases necessary for life on Earth?,By 1F (One degree Fahrenheit),Yes, they are. Because they trap heat from the sun in the Earths atmosphere. Otherwise the Earth would be cold

11、and unsuitable for life.,5. How can we help solve the problem of global warming? We can make small changes like taking public transport, recycling, using low-flow shower heads, buying light bulbs that use less energy, using recycled paper, and switching off the lights when we leave a room.,6. What a

12、re the would-be consequences of global warming? It will cause more frequent flooding, heat waves and droughts. Serious diseases will spread and industries that rely on nature such as fishing will be badly affected. It will also cause the polar ice to melt, raising sea levels, and flooding many islan

13、ds and cities.,Supplement:,Post-reading activities,What will you do to help reduce greenhouse gases in your daily life?,On reducing greenhouse gases, a persons action is not enough. However when that action is multiplied by the 1.4 billion people in China or the 7 billion people worldwide, the savin

14、gs are significant.,What can we do?,public transport,low-flow shower head,energy-saving light bulbs,recycled paper,switch off,注：另附word文档，点此链接,Global warming refers to an averageincrease in the Earths temperature that,(1)_, leads to climate change. In the last 50 years, gases (2)_ the Earths atmosphe

15、re by the factories and vehicles have been (3)_ the process of global warming. Many experts (4)_ for the global warming _ human activities, such as increased industry, agriculture, the cutting down,Global Warming,in turn,speeding up,pin the blame,on,pumped into,Fill in the blanks and try to retell.,

16、of forests, the increase in transport and the burning of fuels. Global warming will (5)_ terrible climate changes including frequent flooding, heat waves anddroughts. Increased temperature will also cause the polar ice to melt, (6)_ sea levels and flooding many islands and cities. How can we help so

17、lve the problem of global warming? Governments all over the world (7)_ reducing the amount of carbon dioxide which their countries are producing. Experts suggest,raising,are responsible for,cause,that each person (8)_ their part by making small changes like takingpublic transport, recycling, using l

18、ow-f lowshower heads, etc. If all these small changes are (9)_, there could be big changes that (10)_ our future.,play,added up,save,Discussion,In the passage, the writer believes that human activities are culprit of global warming. Do you agree with him? Whats your opinion?,n.问题的起因,There are two di

19、fferent theories about this problem.,An Inconvenient Truth 难以忽视的真相,It is a movie about global warming, which was made by former American vice-president and presidential candidate, Al Gore. He believes that too much carbon dioxide is the principal cause of global warming. “It is now clear that we fac

20、e a deepening global climate crisis that requires us to act boldly, quickly, and wisely.” said Gore.,Do you think so? Do you believe that human activity is one of the principal causes of global warming?,Theory one,The Great Global Warming Swindle 全球变暖大骗局,The Great Global Warming Swindle is a documen

21、tary that suggests that the contemporary scientific opinion of climate change is untrue, which is influenced by media, political factors. Even more, some scientific organizations and communities are established or donated by some kind of large fund which has kinds of specific interests in profits of science, even commercial value.,What causes the global warming? Which one can we believe? Or we should believe neither? I hope one day you can give a good answer.,Theory two,Although maybe we can not tell what is