2. 外语
  3. America is changing its eating habits.【C1】______medical evidence mounts that we are【C2】______about what we eat, consuming a heal

America is changing its eating habits.【C1】______medical evidence mounts that we are【C2】______about what we eat, consuming a heal

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问题     America is changing its eating habits.【C1】______medical evidence mounts that we are【C2】______about what we eat, consuming a healthier diet has become almost a national【C3】______in the United States. The food - for - fitness phenomenon began in the late 70’s【C4】______a U. S. Senate committee【C5】______the conclusion that six out of ten leading causes of death—such as heart disease and cancer—【C6】______be linked to diet. The government issued dietary guidelines【C7】______Americans to eat a【C8】______of food,【C9】______proper weight, and limit intake of fat, salt, and sugar.
    For most .Americans,【C10】______to eat is a matter of personal choice,【C11】______than one of supply. An excellent nationwide food distribution system assures that fresh【C12】______is readily available in all parts of the country,【C13】______of the season.【C14】______advantage of this abundance, many people are forsaking(抛弃)traditional meat - and - potatoes fare in【C15】______of lighter meals of salads, fruits, and vegetables.
    One of the most significant trends in the American【C16】______of eating is the healthful change in restaurant food. One of【C17】______two meals in the United States is eaten【C18】______the home. Restaurants  are making special efforts to provide low- fat, low- salt, and low -calorie(低热量的)【C19】______salad bars,【C20】______with fresh greens and raw fruits and vegetables, are found everywhere.
【C8】
选项 A、number
B、variety
C、sum
D、series
答案B
解析 从用法上可排除number和series，因为a number of和a series of都是接可数名词复数；a sum of一般是用来表示钱的数量；a variety of意思是“多种多样的，丰富的”，符合上下文。
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