全新版大学英语（第二版）听说教程3讲义Unit 8 The Environment.docVIP

PAGE PAGE 1 Unit 8 The Environment Part A Pre-listening Task Questions for Discussion Do you think our environment is polluted? What kinds of pollution do you think we have at present? What are the main causes of pollution? What are the effects of pollution on the environment or on human health? What do you think we should do to protect our environment? Do you know of any campaigns to reduce pollution and save the environment? Demo: 3. What are the main causes of pollution? What are the effects of pollution on the environment or on human health? In my opinion, people’s bad behavior and bad habits are the main causes of pollution. They are very harmful to the environment and to our health as well. Many rivers and lakes are polluted by uncontrolled discharge of industrial and domestic waste into them. The air is polluted by industries and motor vehicles. Many forests are damaged or destroyed by people who cut trees. The natural environment is abused by human beings when they try to reshape it such as removing part of a mountain or emptying a pond or a lake. It is also a foolish act to put up an ugly house in a place of natural beauty. So people in those polluted areas will surely be affected by the smog and poisonous polluted water. What’s more, once the environment has been ruined, it will be extremely difficult for it to recover. Additional Question for Discussion What progress have we made to save the environment? Give one or two examples. Demo: In the past two decades, China has established a series of rules and laws and built facilities to control environmental pollution. We have set up various preservations or special zones to protect the nature and wildlife. We have carried out education programs to raise people’s awareness of the importance of environmental protection. We have learned to recycle (循环利用) natural resources whenever possible. Many of us have tried very hard to make our lifestyles more environmentally-friendly (有益于环境). All these efforts we have