D【语篇导读】本文是一篇说明文。文章介绍了吃饭过快会导致吃得多，进而肥胖，这对身体有害，并调查分析了吃饭快的原因。

32.B【解析】段落大意题。根据第二段Speedy eatingmakes you tend to eat more…If you don’t allow thatto happen.…end up overeating.可知，本段分析了吃得过多的原因。

33.A【解析】细节理解题。根据第三段The findingsdid show children with siblings were more likely tohave a faster eating rate.可知，有兄弟姐妹的孩子容易养成吃饭速度快的习惯，即狼吞虎咽。

34.D【解析】细节理解题。根据第五段even adultswho grew up with siblings seemed to continue thehabit of fast-eating into adulthood及第六段There’salot of conversation that says society does this toadults..all of these things可知，成年人吃饭速度快既是童年习惯的延续，也是社会压力即快节奏的生活方式影响的结果。

35.D【解析】推理判断题。根据第一段fast eaters aremore vulnerable to gaining weight and becoming obese及全文内容可知，吃饭速度快的人更容易变胖。