Ⅰ 导入
1.Words related to the environment
Clear-cut logging_____________ opencast mining_______________
slash and burn farming_________ ozone layer__________________
acid rain____________________ global warming________________
2. Do you know the following compound nouns?
acid fog/acid mist(酸雾), domestic sewage（生活污水）, ecological crimes（破坏生态罪）, endangered species（濒于灭绝的物种）, climatic scourge（气候灾害）
