[简答题] 年，我国国内生产总值超过了原定较1980年翻两番的目标，这种增长主要是依赖资源的高投 入、高消耗来实现的。到2020年实现国内生产总值再翻两番，是我国实现全面建设小康社会的奋斗 目标。 我国单位GDP消耗的资源能源数量远高于发达国家，也高于印度等发展中国家。按现行汇率计算， 2003年我国单位资料的产出水平，只相当于美国的1/10，日本的1/20，德国的1/6。单位产值能耗比世 界平均水平高2.4倍，是德国的4.97倍，日本的4. 43倍，美国的2. 1倍，印度的1. 65倍，是世界上单位 产值能耗最高的国家之一。 而我国人口众多，人均资源比较贫乏，水资源人均占有量仅相当于世界人均的25%，人均耕地面积 不足世界平均水平的50%，石油人均占有储量为世界平均水平的11%，大多数矿产资源的人均拥有量不 足世界平均水平的50%。 我国环境污染和生态恶化形势十分严峻，1/5的城市空气污染严重，1/3的国土面积受到酸雨影响， 全国水土流失面积356万平方公里，沙化土地面积174万平方公里，90%以上的天然草原退化。生物多 样性减少。 按照科学发展观的要求，我国如何建设资源节约型、环境友好型社会？

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