本教材共10个单元,包括大陆与海洋,地球,气候,飓风,环境污染,航海家,文化礼仪,工作与个人发展,有机食物,健康生活:Continents and Oceans; The Earth; Climate and Weather; Hurricanes and Tsunami; Pollution; Explorers; Manner and Culture; Work and Personality; Organic Food; Healthy Life.
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