People who claim to have seen Bigfoot do not agree about what he or she looks like, but they do agree that Bigfoot stays away from human beings. As soon as people enter the forest, Bigfoot hides from view. Scientists do not know whether Bigfoot really exists. Some scientists think people have fabricated these stories to amuse or to trick their friends, but other scientists feel these accounts are quite true. 声称看到过大脚印的人对他或她的长相意见不一，不过一致同意大脚印躲着人类。一旦人们进入树林，大脚印就从人们的视线消失。科学家们不确定大脚印是否真的存在。一些科学家认为人们编造这些故事来逗朋友乐或是跟朋友开玩笑，可其它科学家感到这些记录相当真实。 编辑推荐：2009年下半年公共英语考试报名汇总 名师指导公共英语阅读考试技巧 公共英语pets三级全真模拟试卷 公共英语pets二级语法讲解汇总