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改变 是SAT写作中的常见话题，关于这个话题有哪些素材事例可以使用呢?本文将介绍技术变革给人们的生活带来的影响，其中的一些变化可难以称得上是有利。 Theme: Change Thesis: The world isn t always changing for better. Subject 1: Environment pollutionEconomic inequality Since the Industrial Revolution, our environment has been in imminent danger. For example, a dramatic summer drought helped public focus their attentions on the greenhouse effect, a general warming of temperature on the Earth, which is caused by an increase in atmospheric carbon dioxide released by burning fossil fuels like coals, gasoline products, and rapid deforestation. Along with the rapid technology advance is the emergence of acid rain, ecological wasteland, and natural disasters, such as flood and hurricane. Not only to environment, but also to some people, changes in today s seemingly progressive world are not always good. The booming America saw a growing economic inequality. In 2004, the number of millionaire household in America increased by 14% as the number of people living below the poverty line rose to about 37 million, including 15 million children. The annual budget passed by Congress in 2005 severely cut programs essential to struggling families, including child assistance and medicaid funding for the poor. Left in such desperate condition, the poor could hardly appreciate these changes. | 
