冀教版高中英语选修7“Unit 2 Global Warming”课件.pptVIP

* Unit Two Global Warming The earth is our most precious resource. It gives us life; it is where we live. What will the world like in a hundred years? While scientists might disagree about the effects Of global warming, they agree that it is happening, and that it will change the face of the planet. Cheat the earth and the earth will cheat you. —— Chinese Proverb The beautiful earth is our home. Do you love to live here? garbage deforestation desertification Starvation Air pollution deforestation Water pollution The area of desert is growing. desertification too many sheep and cattle all the grass be eaten grass never grow again ; the land become desert trees be cut down nothing to hold… soil be blown away soil be washed away… trees be destroyed fish be killed smog most serious problems Water pollution Trash/Garbage Air Pollution Deforestation Desertification Starvation After seeing the pictures, do you still enjoy living on the earth? Read the passage and tell the main idea of the dialogue. Debates about the reasons for the globe warming. True or False or INP 1. The play is set in Beijing, where an international conference on climate change is being held. 2. Scientist No. 1 is optimistic, and Scientist No. 2 is pessimistic, about globe warming. 3. Scientist No. 2 believes that we have misread and misinterpreted changes in temperature. 4. Smokestack Industries are from Hong Kong. 5. Carbon dioxide comes from factories. 6. The play tells us that we are safe, that trees are continuing to grow, and that the earth will last millions of years. False False True INP True False Read and look for information: 1.List three things Scientist No. 1 mentioned to support her idea that we are in danger. ● Industrial activity by humans is producing much pollution. ● A sort of greenhouse now surrounds the earth. The greenhouse allows the sun’s ray in, but prevent harmful gases from escaping. ● The warm weather w