UNIT 1 听词辨音—Word & Tone Snowshoe hare Norwegian folk tale Sunspots Glasses Phosphorus cycling 课后自测 本单元词汇汇总 UNIT 2 关键词提炼—Key words Sauropods Octopus Parchment Cecilia Beaux Moon's crater Pollination Animal domestication Architecture Tectonic plate The U.S.government 课后自测 本单元词汇汇总 UNIT 3 结构分层——Paragraph Dadaism Primary colors Cora 0 reef Distraction display Faint young Sun paradox Eanh radiation budget Banana Seafare and stars Gricean maxims Ancient Egyptian calendar 课后自测 本单元词汇汇总 UNIT 4 中英互译——Paraphrase Spices Music of ancient Greek Population in an ecosystem Green marketing Clovis people 课后自测 本单元词汇汇总 附录 (Answers) 听力原文(Audio Scripts)