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1、黎城一中张燕慧Watch and discuss:1.What problem does it mention in this video?2.How has this come about?greenhouse effectGreenhouse3.What is the greenhouse made of and what is its purpose? A greenhouse is made of glass and is used for growing plants, especially during cold weather. The air inside is warm be
2、cause the glass traps the heat from the sun and keeps it from escaping.This makes the greenhouse heat up and so the plants can grow throughout the cold period. It performs the same function as the greenhouse gases. They trap the heat of the sun and keep the air surrounding the earth warm, this is ca
3、lled the greenhouse effect.Greenhouse4.What are Greenhouse gases?Water vaporCarbon dioxideMethanemi:ein In the atmosphere surrounding the earth there are gases called “greenhouse gases”, includingThe earth is becoming warmerBut does it matter? Glance quickly at the magazine article and answer the qu
4、estions.1.Who wrote the magazine article? What is the name of the magazine?2.What is the main topic of the article?3.What are the names of the three scientists mentioned in the article?4. What are the two graphs about?First Reading4. What are the two graphs about?Graph I shows the temperature increa
5、se of one degree Fahrenheit between 1860 to 2000.Graph 2 is about the carbon dioxide content in the atmosphere, 1958-1990.Second Reading1.Divide the whole passage into 4 parts1.Read the text carefully and sum up the main idea of each part.Part one:(para )Part two:(para ) Part three:(para )Part four:
6、(para )Introduce the problem of global warming .Explain how global warming comes about. List two different attitudes among scientists towards global warming. Its up to readers to think and decide whether people should do something about global warming or not.762-512.Read the passage again and answer
7、 the following questions:Dr. Foster thinks that ( ).George Hambley thinks that ( ).Second ReadingA. We need gases like carbon dioxide, methane and water vapour, but if we add huge quantities of extra carbon dioxide to the atmosphere by burning fossil fuels, it will cause the global temperature to go
8、 up.B. Predicts that any warming will be mild with few bad environment consequences.C. An increase of five degrees would be a catastrophe.D. Believes that we shouldnt worry about high levels of carbon dioxide in the air.E. Over the next 100 years, the amount of warming could be as less as to 1.5 deg
9、rees Celsius, but it could be as high as 5degrees Celsius.F. States that more carbon dioxide is actually a positive thing, which will make life for human beings better.Dr. Foster thinks that ( ).A.We need gases like carbon dioxide, methane and water vapour, but if we add huge quantities of extra car
10、bon dioxide to the atmosphere by burning fossil fuels, it will cause the global temperature to go up.C.An increase of five degrees would be a catastrophe.E.Over the next 100 years, the amount of warming could be as less as to 1.5 degrees Celsius, but it could be as high as 5degrees Celsius.George Ha
11、mbley thinks that ( ). Predicts that any warming will be mild with few bad environment consequences. Believes that we shouldnt worry about high levels of carbon dioxide in the air. States that more carbon dioxide is actually a positive thing, which will make life for human beings better.3. What may
12、be the terrible effects of global warming?4.What may be the positive aspects of global warming?a rise of several metres in the sea level; severe storms, droughts, famines, the spread of diseases, and the disappearance of species.Plants grow quicker;Crops will produce more; Encourage a great range of
13、 animals;Make life for human beings betterRead the passage carefully. Are these statements true or false?1. The temperature in the last century did not seem to increase much. ( )2. Everyone believes that global warming is caused by human activities. ( )3. Janice Foster believes that she can measure
14、the future global rise in temperature. ( ) 4. The rise in Carbon dioxide is causing a steady increase in global warming.( )5. George Hambley believes that global warming will do good rather than harm to the earth. ( )6. It is clear what the effects of global warming will be. ( )TTTTFFDiscussionDo yo
15、u think global warming isgood or bad for us? What can we do to slow it down?Discuss in groups.Heal the world 拯救这世界Make it a better place 让它变得美好For you and for me and the entire human race 为你 为我 为了全人类There are people dying 不断有人死去If you care enough for the living 如果你真心关怀生命Make a better place for you and for me 为你 为我 创造一个更加美好的世界Assignment1.Surf the Internet for more information about global warming.2. Preview Using Language- WHAT CAN WE DO ABOUT GLOBAL WARMING?