[解析]
1.B. 细节理解题.根据文章第二段 More than half(53 percent)have breakfast alone and nearly half(46 percent)have lunch by themselves可知第2段的统计数字是关于饮食习惯的;故选B.
2.C. 细节理解题.根据文章第三段.She retuns to work feeling energized."Today,I just wanted some time to myself,"she said可知Bechtel喜欢出去吃午餐是为了有点儿自己的时间;故选C.
3.D. 推理判断题.根据文章第四段He likes that he can sit and check his phone in peace or chat up the barkeeper with whom he's on a first﹣name basis if he wants to have a little interaction可知Mazoleny他熟悉酒吧老板;故选D.
4.A. 推理判断题.根据文章最后一段There was a time when people may have felt awkward about asking for a table for one,but those days are over.Now,we have our smartphones to keep us company at the table可知主要内容是独自吃饭的趋势;故选A