分析 本文是一篇科普类阅读,讲述了关于食品的保质期的问题,很多人都以为食物到了保质期就不能食用,其实这样会造成很多浪费.很多食物的保质期到了只会影响口感等,是可以食用的.
解答 51.答案:B.细节理解题.根据"According to a report,tons of food is wasted each year,largely because people don't fully understand what expiration dates,or"use-by dates",actually mean"可知,每年上吨的食物被丢弃,因为超过了保质期.故选B.
52.答案:B.细节理解题.根据"When they first showed up,use-by dates were only supposed to indicate freshness because producers wanted their products to be tasted in their best conditions"可知,最初设置保质期是为了表示在此时间食物是新鲜的.故选B.
53.答案:D.推理判断题.根据"Another problem is that the quality levels of different foods change differently-some are still edible long after their use-by date while others are not."可推测出,作者举例是为了说明有些食物过了保质期后还可以吃.故选D.
54.答案:C.细节理解题.根据"We want this to be clearly communicated so customers are not misinterpreting the date and contributing to a lot of waste,"可知,保质期容易误导消费者,随之产生不必要的麻烦.故misunderstanding意为理解错误.故选C.
55.答案:A.推理判断题.A.设定食物质量的标准很难;B.食物保质期应该被停用;C.食品工业应对食物味道负责;D.人们很容易接受新的标准.根据最后一段内容及全文内容可知,因此,食品行业官员正在考虑更改有效期日期指示当食物是坏的.故A符合文章内容,BCD均不符合.故选A.
点评 本文是一篇科普类文章,题目涉及多道细节理解题及推理判断题,做题时应结合文章上下文内容,仔细阅读原文并根据所给选项的含义进行分析,从而得出正确答案.切记胡乱猜测,一定要做到有理有据.
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