【正确答案】 D

【答案解析】[听力原文]
University of Houston associate professor Temple Northup has looked at the relationship between food consumption and the number of hours spent in front of the television. Northup"s study, published in The International Journal of Communication and Health, surveyed 591 undergraduate students on their viewing, eating and drinking habits. Consistent with past studies, he found that the more people watched TV, the more they engaged in unhealthy eating. "The explanation is relatively straightforward— the act of watching TV is an activity that encourages snacking," says Northup.
Lots of research shows mindless eating plays a prominent role in how much we digest while distracted with what is happening on screen. "Watching TV while eating is also common behavior," says Lilian Cheung, director of health promotion and communication at Harvard School of Public Health. "When we are distracted while eating, or eating mindlessly, we are not paying full attention to the food in front of us, and miss the cues letting us know that we are full."

What did Northup do in his survey?

[解析] 题目问Northup在调查中所做的工作。录音开头提到，休斯顿大学的副教授着眼于研究摄食量和在电视机前花费的时间之间的关系，然后引出他发表的研究，调查了591个大学生的看电视和饮食习惯(viewing，eating and drinking habits)。D项复现原文关键信息，故为答案。
A项中的关键词journal有在新闻中出现，但原文是说Northup的研究发表在国际期刊上，并没有提到他研究了大量国际期刊。B项拼凑了新闻中的food consumption和undergraduate students，但Northup的研究并非“估算本科生的食品摄入量”。C项中的in front of the television有在新闻中出现，但文中是指被调查对象边看电视边吃饭，而非Northup自己。

【正确答案】 A

【答案解析】[听力原文]
What does Northup"s finding suggest?

[解析] 题目问Northup研究结果表明了什么。研究结果是：看电视的时间越长，饮食越不健康(the more people watched TV, the more they engaged in unhealthy eating)。新闻接下来对这一发现做进一步的解释：看电视会刺激人们吃小吃(encourages snacking)，所以A项为答案。
录音中并没有指明大多数人的饮食习惯是否健康，而是单纯讨论看电视对饮食习惯的影响，故排除B项。Lilian Cheung在新闻后半部分提到，边看电视边用餐是一种普遍行为，人们吃东西时分心是常见现象，但这并不是Northup研究的结果，C项和D项答非所问。

【正确答案】 C

【答案解析】[听力原文]
What"s the consequence of eating mindlessly?

[解析] 题目问心不在焉地吃东西可能会导致怎样的结果。录音末尾提到，当我们吃东西分心时，我们往往会忽视面前的食物，让我们错过已经饱了的信号(miss the cues letting us know that we are full)，所以心不在焉地吃东西可能导致我们不知道自己饱了，C项为该处录音的同义表达，故为答案。
A项“完全专注于电视节目”中的full attention说法过于绝对，且在录音中没有提及。B项中关键词screen在新闻中出现，但“错过屏幕上的东西”却不是新闻所说的结果。新闻里说心不在焉地吃东西可能导致我们不知道自己饱了，因此会吃更多的食物，D项“比平时吃更少的食物”与新闻所说相反。