[解析]
(1)D.目的意图题.根据第一段最后一句Food cravings are a strong desire for a specific type of food.And they are normal.可知,第一段是为了引导整篇文章的话题.故选D.
(2)A.推理判断题.根据第三段Foods that are high in fat or high in sugar produce chemicals in the brain.These chemicals give us feelings of pleasure.可知,食物与情感有关系.故选A.
(3)B.推理判断题.根据倒数第二段第一句In a 2007 study,researchers at Cambridge University found that "dieting or restricted eating generally increases the possibility of food craving."可知,节食的结果会导致食物欲望的增加.故选B.
(4)C.主旨大意题.根据最后一段So,the next time you crave something very specific,know that your brain may be more to blame than your stomach.本文主要谈论饮食冲动的调查结果.故选C.