要想提高SAT 写作的质量和速度，积累素材是每天必须要做的工作。积累并不是一味的记忆和重复，而是要在理解素材的基础上灵活运用素材，使之为文章服务。SAT 作文话题涉及到很多方面，这就要求我们广泛阅读，通过阅读报纸和杂志来了解相关的英语文化背景和新闻时事，扩大知识面，增加素材积累量。下面就为大家就某些方面的话题提供几个素材。

　　(一)Theme: Change

　　Thesis: The world isn’t always changing for better.

　　Subject 1: Environment pollution & Economic 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 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 seemly 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 straggling families, Including child assistance and Medicaid funding for the poor. Left in such desperate condition, the poor could hardly appreciate these changes

　　Subject 2: Technology changes

　　Detail: In a culture which emails, cell phones and internet chat room have become everyday modes of communication, we are on the verge of breaking down all barriers to the complete and constant transfer of information. But if we seem to be moving toward unfetter union, we could also be seen more isolated as individuals than we have ever been before. Changes in technology definitely make our lives easier, as shopping at home becomes easier than driving to the store, as meeting people online eliminates the need to spend a lot of time traveling, and as faxing someone a blueprint gets rid of necessity of meeting to discuss a plan. However, the very technology that purports to make connections and bring people closer together is helping them drift apart. One can absolutely recall some scenes which you were sitting alone in your bedroom busily talking to someone on msn while rejecting the proposal to shop with your families or you was having lunch with friends while talking to someone else on your cell phones. All these convenient technologies including online services that prevent us from going out and meeting a real person, and cell phones that reduce the real human interaction do not necessarily make us better.