大学英语课件2：unit7视听说.ppt

New Herizon Unit 7 Damages are being done to the environment: (words review) littering, pollution, poisonous substances, excessive fishing, destruction of natural habitats, over-consumption of (wild animals and plants), industrial pollution… Environmental problems: (words review) El Nino greenhouse effect acid rain greenhouse effect holes in the ozone layer Sandstorm air pollution, water pollution desertification Listen to the VOA news about Moving beyond talk on climate change and discuss in pairs: Listen to the VOA news about Link between air pollution and heart disease and discuss in groups: Protect my hometown! Protect my hometown! Tips: protect forests, supervise sewerage treatment, shut down some plants, use renewable energy, harness the sun’s energy, safely dispose old refrigerators, The Olympic Games will be held in Beijing, 2008. But pollution in the big city is still a serious problem. Our government has done a lot to improve the environment during these years. As college students, we should also do something. Now work in groups, take about how to make Beijing a best city for Olympics. Tips: Expressing Cause and Effect asking for donations to save the rainforests… What do I care? I’m impressed./ I’m amazed./ Awesome! find a way to save them./…find a solution to save them./…work out a plan to preserve them. A big dust storm struck our city. The air was full of dirt and sand and dust. Is there a solution to the problem? …the government is launching a new afforestation program in a bid to address the environmental problem. Sample Debate A: In my opinion, we must give priority to economic growth. At present China’s economy is not strong enough, and the per-capita GDP is much smaller than those of advanced countries. B: I beg to differ. Compared with 30 years ago, the Chinese economy has developed a great deal, and at the same time it has produced a lot of pollution. It is high time we gave environmental conservation serious consider