01 【长难句】

　　Americans spend more on fast food than they do on higher education, PCs or new cars—worrying, when a single meal at a KFC of less than a pound-weight of food plus a large Pepsi can top 1,600 calories, not far short of the daily intake recommended by the government for adults doing only “light physical activity”.

　　02【句型分析】

　　破折号前面是比较级结构more…than…，worrying是形容词对前面的总结，when引导状语从句，主语是a single meal of …. plus….，谓语是can top，1600 calories是宾语。后面是形容词结构作定语，recommended by the government for adults是后置定语修饰the daily intake， doing only “light physical activity”是分词结构修饰adults。

　　03【词汇】

　　short of 缺乏，达不到

　　intake 摄入量

　　recommend 推荐

　　04【参考译文】

　　美国人花在快餐上的钱远远多于高等教育、个人电脑或新的车型——这很令人担忧。在肯德基快餐店光吃一顿不到一磅重的餐点，再喝一大杯百事可乐，摄入热量就可能超过1600卡路里，这比美国政府为仅从事“轻度体力活动”的成人所推荐的每日摄取量并不低多少。