【正确答案】There has been an apparent change in people's preference for cars of different brands in the past few years．In 2008，25% car drivers chose to buy home-made vehicles．another 35% people opted to purchase Japanese brands．But one year later，these percentages changed to be 30% and 25% respectively．People's like for American vehicles remained stable，accounting for 10% both in 2008 and 2009．How can we interpret this change? The following factors converged to produce this phenomenon．Firstly，American cars are both costly and oil-inefficient．So，the percentage of people who like the cars and choose to buy them remained unchanged in the two years．Secondly．many more people began to buy cars made in China both out of their patriotism and the grudge that we hold against the Japanese for their barbarity and cruelty to the Chinese people during the war．Besides，the quality of our own cars is becoming better and their maintenance is convenient as well． As a car hater，I don't care very much about the fluctuation as indicated by the diagram．Instead。I wish to advocate that both the government and the public think critically about this car-craziness in our country today，which is more energy-thirsty than most of US have realized．In addition，more social problems that have arisen in our country seem to be car-related，best exemplified by drunk driving．

【答案解析】[解析] 这是一篇关于中国人购买轿车品牌变化的作文。第一段是数据描述。开头的第一句扼要概述了数据所表现的趋势，然后是3个数据的描述。为了使表达多样，作者采取choose to buy和opt to purchase，其意思都是“选择购买”。第一段结束时，作者提出了一个问题，顺理成章地把文章引向原因分析。 第二段是分析原因。开头一句The following factors converged to produce this phenomenon是主题句，与我们前文所使用的句式和词语都截然不同，但作用却是一样的。本段所提出的3个原因非常明确：美式汽车耗油、国人爱国和国产汽车质量提高并且维修方便。 第三段是结尾段。作者发表了评论，希望政府和民众都能批判地看待目前国人的汽车热，理由是我国能源短缺，而且私家轿车带来了一些社会问题(如：酒后驾车)。