【答案解析】美国人的饮食习惯正在发生诸多变化。美国多年来那种丰盛的、一成不变的肉制品加土豆的传统餐，早已为世人所熟知。
而今，我们可以有多种不同的选择，除了传统的家常菜外，我们可享受到各种民族风味餐、营养合理的保健餐以及方便可口的快餐。
民族餐馆在美国比比皆是。由于美国是一个由移民组成的国家，因此它有着丰富多彩、纷然杂陈的饮食文化。
在美国任何一个大城市，外国风味餐馆随处可见。许多城市甚至还有一些少数民族聚集区，如中国城(即唐人街)、小意大利城或德国城。 [解析]
Many changes are taking place in Americans" food styles. The United States is traditionally famous for its very solid and unchanging diet of meat and potatoes.
Now we have many different alternatives to choose from: various ethnic foods, nutrition- balanced health food, and convenient and delicious fast food, in addition to the traditional home- cooked meal.
Ethnic restaurants are commonplace in the United States. Because the United States is a country of immigrants, there is an immense variety in its catering cultures.
Any large American city is filled with restaurants serving international cooking. Many cities even have ethnic sections: Chinatown, Little Italy, or Germantown.