内容正文:
必修第二册 Unit 1 Food for thought
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一、完形填空
阅读下面短文,从短文后各题所给的A、B、C和D四个选项中,选出可以填入空白处的最佳选项。
People in the US have been encouraged for decades to eat various kinds of food, as the variety of food helps to 1 that they keep a 2 with enough nutrition. But this week a group of nutrition experts said that longstanding 3 might be out of date.
The advice to 4 different kinds of food has been included in the government's Dietary Guidelines for Americans for quite some time. It is 5 based on 6 studies of low-income populations. The studies claimed that consuming various kinds of food could help 7 deficiencies(缺乏) of nutrition.
But things may be different considering today's environment 8 food is plentiful. That same advice could lead to a(n) 9 consequence, argued Dr Otto, one of the experts with the American Heart Association.
Experts 10 the latest evidence of the recommendation, and 11 a scientific report on Thurs