[解析]
(1)C.细节理解题。根据文章第一段We've all been there:in a lift,in line at the bank or on an airplane,surrounded by people who are,like us,deeply focused on their smartphones or,worse,struggling with the uncomfortable silence.(我们都经历过:在电梯里,在银行排队,或者在飞机上,周围的人,像我们一样,全神贯注于他们的智能手机,或者更糟糕的是,挣扎于令人不安的沉默)可知,该段描述的情景是人们在公共场所不是玩手机就是尴尬地沉默,没有和其他人交流,故选C.
(2)B.细节理解题。根据文章第三段The key to successful small talk is learning how to connect with others,not just communicate with them .(成功闲聊的关键是学会如何与他人交流,而不仅仅是与他们交流)可知,成功的关键是与他人产生联结,故选B.
(3)D.推理判断题。根据文章第四段The results showed that those who chatted with their server reported significantly higher positive feelings and a better coffee shop experience.(结果显示,那些与服务员聊天的人明显表现出更高的积极情绪和更好的咖啡店体验)可知,与店员交谈后的顾客会对服务更满意,且对在咖啡店的服务体验更满意,故选D.
(4)C.标题归纳题。根据文章第一段We've all been there:in a lift,in line at the bank or on an airplane,surrounded by people who are,like us,deeply focused on their smart phones or,worse,struggling with the uncomfortable silence.(我们都去过那里:在电梯里,在银行排队,或者在飞机上,周围的人和我们一样,都在专注于自己的智能手机,或者更糟的是,在不舒服的沉默中挣扎)可知,作者从公共场合人与人极少交谈的场景开始,逐步论述闲聊的益处。故本题答案应围绕"闲聊的益处"展开。选项C.Benefits of Small Talk,符合文意,故选C.