1. fossil /’fɒs(ə)l/
e.g. The scientists dug up the fossils from the ground.
e.g. He uncovered the fossil remains of a large reptile.
remain n. 遗迹
fossil fuels 化石燃料：coal, oil, and natural gas
e.g. China is the world’s largest consumer of coal, more than 60 percent of the nation’s energy comes from the fossil fuel.
Maybe I’m just a fossil, but I don’t think this kind of music is appropriate for children.
2. archaeology /ˌɑːkɪ’ɒlədʒɪ/
e.g. Daniel is very interested in history and archaeology, and often visits historic sites.
e.g. Excavating human remains is one of the most exciting parts of archaeology.
e.g. Rich in its natural diversity, preserved Quechua culture and beautiful archaeological ruins, Peru is full of wonder and discovery.
3. ceramics /si’ræmiks/
剑桥11-3-1：They are going to show a short film that gallery has produced. It demonstrates how ceramics are made. And there will be equipment and materials for children to have a go themselves.
补充：Have a go at it myself 自己尝试下。
4. primitive /’prɪmɪtɪv/
搭配：primitive tribe 原始部落
Primitive society 原始社会
e.g. Primitive races colonized these islands 2,000 years ago.
e.g. Early settlers had to cope with very primitive living conditions.
e.g. The technology they used was primitive and outdated.
5. clan /klæn/
e.g. Spotted hyenas live in large, mixed-sex clans with fairly stable social hierarchies-and the females are in charge. 斑点鬣狗生活在大型的雌雄混居的家族中，这种家族的社会等级相当稳定，而且由雌性主导。
搭配：a rigid hierarchy of social classes 严格的社会阶层等级