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Directions: Study the following cartoon carefully and write an essay in which you should describe the set of drawings, interpret its meaning, and point out dangers from air pollution. You should write about 200 words neatly on ANSWER SHEET 2. (20 points) 参考范文： Air pollution, which can be seen in many parts of the world, is one of the serious problems the world’s people are facing today. As is indicated from the picture, the poisonous gas coming from the factories, automobiles and houses pollute the air without which cannot live. There is no denying that many people as well as scientists have been aware of dangers air pollution brings to people. The first category of dangers it has brought is the harm to our health. Nearly everyone knows that serious air pollution irritate our eyes, causes us to cough and makes us get more serious diseases. Air pollution is not only dangerous to people but also detrimental to our surroundings and our daily life. It corrodes our building, damages crops and forests and causes both airplane and auto accidents because it cuts down visibility. Furthermore, the pollutants in the air may travel through the air with wind; as a result, air pollution can spread from city to city, even from country to county. So air pollution is really a global problem As can be seen from the above dangers, air pollution cost our human beings a great deal of money. Therefore, it must be worthwhile to spend more money and efforts on air pollution control | 
