1、经典写作主题佳句 Unit3,十大原则核心词汇,经典佳句,A has attracted considerable attention over the past few years. B has become a disturbing national epidemic. C has become a global problem, afflicting millions of people. D has become a national health problem. E has become a public health concern in Canada.,核心词汇,失眠（问题）
2、儿童肥胖症 抑郁症 压力 缺乏锻炼 心理健康 缺乏干净饮用水 慢性疾病 酗酒,写作练习,Years attention few has the considerable attracted insomnia over past Obesity national disturbing a childhood become has epidemic Has afflicting problem depression people global become a of millions Problem national stress has health concern Lack become ha
3、s of in Canada public exercise a health concern,写作练习,Mental years health the past attention attracted considerable few has over Disturbing physical national epidemic become inactivity has a Water lack become has people afflicting of of clean drinking a billions global problem Problem national chronic become has disease a health Public alcoholism a health has in countries become many concern,
