2. 外语
  3. Americans today have different eating habits than they had in the past. There is a wide【B1】______of food available. They have a

Americans today have different eating habits than they had in the past. There is a wide【B1】______of food available. They have a

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问题     Americans today have different eating habits than they had in the past. There is a wide【B1】______of food available. They have a broader【B2】______of nutrition (营养), so they buy more fresh fruit and【B3】______than ever before. At the same time, Americans【B4】______increasing quantities of sweets and sodas.
    Statistics show that the way people live【B5】______the way they eat. American lifestyles have changed. There are now growing numbers of people who live alone,【B6】______parents and children, and double-income families. These changing lifestyles are【B7】______for the increasing number of people who must【B8】______meals or sometimes simply go without them. Many Americans have less time than ever before to spend preparing food.【B9】______. Moreover, Americans eat out nearly four times a week on average.
    It is easy to study the amounts and kinds of food that people consume.【B10】______. This information not only tells us what people are eating, but also tells us about the changes in attitudes and tastes.【B11】______. Instead, chicken, turkey and fish have become more popular. Sales of these foods have greatly increased in recent years.
【B2】
选项
答案knowledge
解析 此处应该填入一个名词，被形容词的比较级broader修饰。knowledge意为“知识，学问”，broader knowledge of nutrition意为“更全面的营养知识”。
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