[解析]
53.C 细节理解题.根据第二段the French see eating as an important part of their life style可知法国人将饮食当作生活的一部分,故选C.
54.B 主旨要义题.通读全文,并根据Researchers conclude that the French tend to stop eating when they feel full.However,Americans tend to stop when their plate is empty or their favorite TV show is over.可知本文主要介绍了美国和法国的生活方式的不同,而且美国的饮食宜造成肥胖,而法国的饮食可保持身体苗条,也就是主要介绍的生活方式与肥胖之间的关系,故选B.
55.A 判断推理题.通读全文,根据Why do Americans struggle with watching their weight,while the French,who consume rich food,continue to stay thin?作者在第一段以为什么美国人在与肥胖作斗争而法国人享受着美食且保持身材苗条引出话题,故选A.
56.C 判断推理题.本文主要介绍了美国和法国生活方式的不同以及带来的体型变化等,故应是来源于健康报告.故选C.