材料：2005年12月21日，中 * * * * 、国家 * * 胡 * * ，到北京展览馆参观正在这里举办的建设节约型社会展览会。胡 * * * * 指出，节约资源是我国的一项基本国策。节约土地、资源、淡水、矿产资源，对实现经济社会可持续发展具有重大意义。我们要从贯彻落实科学发展观的高度，充分认识节约能源资源的极端重要性和紧迫性，加快推进建设节约型社会的各项工作。

阅读材料，回答下列问题：

（1）结合胡 * * 书记的重要讲话，联系我国初级阶段的国情，谈谈目前我国建设节约型社会的必要性。 

（2）我们应如何脚踏实地地做好节约资源、保护环境的工作？

The "standard of living" of any country means the average person’s share of the goods and services which the country produces. A country’s standard of living, (1) , depends first and (2) on its capacity to produce wealth." Wealth" in this sense is not money, for we do not live on money (3) on things that money can buy. "Goods" such as food and clothing, and "services" such as transport and " (4) ". A country’s capacity to produce wealth depends upon many factors, most of (5) have an effect on one another. Wealth depends (6) a great extent upon a country’s natural resources. Some regions of the world are well supplied with coal and minerals, and have a fertile soil and a (7) climate; other regions possess none of them.

Next to natural resources (8) the ability to turn them to use. China is perhaps as well (9) as the USA in natural resources, but suffered for many years from civil and (10) wars, and (11) this and other reasons was (12) to develop her resources. (13) and stable political conditions, and (14) from foreign invasion, enable a country to develop its natural resources peacefully and steadily, and to produce more wealth than another country equally well (15) by nature but less well ordered.

A country’s standard of living does not only depend upon the wealth that is produced and consumed (16) its own borders, but also upon what is indirectly produced through international trade. (17) , Britain’s wealth in foodstuffs and other agricultural products would be much less if she had to depend only on (18) grown at home. Trade makes it possible for her surplus manufactured goods to be traded abroad for the agricultural products that would (19) be lacking. A country’s wealth is, therefore, much influenced by its manufacturing capacity, (20) that other countries can be found ready to accept its manufactures.

11（）

A. for

B. because

C. because of

D. due to