【答案解析】[参考译文]
超级市场的设计理念就是吸引顾客尽可能地花钱。理由很简单：你在店里待得越久，你看的东西就越多，而你看的东西越多，你购买的东西也会越多。超市的东西应有尽有。根据食品市场营销研究院的调查，普通超市会储存4.4万种不同的物品，其他超市会储存更多。可选物品的体量足够大，消费者就会进入一种信息过量的状态。根据脑部扫描实验，决策量增大会超出我们的承受能力。购物超
过40分钟，消费者会停止理性选择，转向情绪购买。结果是，在购物车上囤积的物品中，半数不在我们计划购买之列。 [解析]
[重点句式解析]
1．The reason for this is simple: The longer you stay in the store, the more stuff you"ll see, and the more stuff you see, the more you"ll buy.
句子主干结构the longer...the more...and the more...the more...罗列的比较结构，对应汉语句式“越……就越……；越……就越……”
2．After about 40 minutes of shopping, most people stop struggling to be rationally selective, and instead begin shopping emotionally—which is the point at which we accumulate the 50 percent of stuff in our cart that we never intended buying.
句子主干结构包含五个动词为核心的逻辑单位：1) stop struggling to be三个动词都围绕most people进行，所以划分为一个逻辑单位；2) begin shopping；3) which is the point，指“情绪购物”；4) at which we accumulate the 50 percent of stuff；5)that we never intended buying。考生在理解时应以逻辑单位的划分为主，翻译时以逻辑单位的语序调整为主。