【正文】
noise pollution rubbish everywhere air pollution water pollution 1 2 3 4 Under the Blue Sky What causes the pollution of our environment? 1. What makes it hard for people to breathe the fresh air? 2. What now harms everyone in the world? 3. What is coal used for? 4. What causes traffic jams everywhere in large cities? 5. How many people a year die of diseases related to air pollution in the United States according to the Natural Resources Defense Council? 6. Is the death rate of diseases related to air pollution higher than that of traffic accidents or AIDS? 7. What would help to protect and to improve the environment? Ask and answer Ask and answer 1. What makes it hard for people to breathe the fresh air? 2. What now harms everyone in the world? Smoke from chimneys and waste gases from cars make it hard for people to breathe the fresh air. Air pollution now harms everyone in the world. 3. What is coal used for? 4. What causes traffic jams everywhere in large cities? Coal is used in industry and also for heating and cooking. That too many cars are running in the street causes traffic jams everywhere in large cities. 5. How many people a year die of diseases related to air pollution in the United States according to the Natural Resources Defense Council? About 50,000 people a year die of diseases related to air pollution in the United States according to the Natural Resources Defense Council. 6. Is the death rate of diseases related to air pollution higher than that of traffic accidents or AIDS? 7. What would help to protect and to improve the environment? Yes, it is. Little things like reusing, not littering around and walking or biking instead of driving cars would help to protect and to improve the environment. True or False? in large cities feel that the sky is as blue as it used to be. is more fresh air for people to breathe. death rate is higher than that of traffic accidents or AIDS. situation of our environment is still not very worrying. 5. Air is being polluted mainly by car, for they burn fuel and release waste gas. √ Fill the gap according to the text. 1. Air pollution now _____everyone in the world. 2. Coal is used in ______ and also for _______and _____. 3. Smoke from ___________ is one of the causes of air pollution. 4. According to the Natural Resources Defense Council in the United States, about 50,000 people a year _______ diseases _________air pollution. harms industry heating cooking burning coal die of related to 5. The unreasonable production often ________air pollution, water pollution and much ______ to the environment. 6. Not only the government _________ we the citizens should work more actively to _________ pollution and to ______ the environment. In addition, we should also __________our own actions. leads to damage but also fight against protect be aware of Useful expressions of 1. no longer 2. used to do