anthropologist n. 人类学家
archaeologist n. 考古学家
ancestor n. 祖先
fossil man adj. 化石人
recount v. 叙述
saga n. 英雄故事
legend n. 传说,传奇
migration n. 迁移,移居
Polynesian adj.波利尼西亚（中太平洋之一群岛）的
Indonesia n. 印度尼西亚
flint n. 燧石
rot n. 烂掉
1）hand down 把...传下去
例句:Many old legends were handed down from generation by mouth.
许多古老的传说都是一代一代口传下来了.
2）read of,读到,和read about是相同的意思.
谈到:speak of,talk of
了解到:know of
听到:hear of
3）.the first people,原始人
people+s 表示民族
4）if they had any: 即便是有,表假设
例句:His relatives, if he had any, never went to visit him when he was hospitalized.
他的亲戚,即便他还有的话,在他住院时也从来不去看他.
5）when even the bones of the men who made them have disappeared without trace,
这个以when引导的状语从句表示让步的意思,而when可以译成“虽然",“尽管".