The "standard of living" of any country means the average person's share of the goods and services the country produces. A country's standard of living, ________（50）, depends on its capacity(生产力) to produce wealth. 'Wealth" ________（51）this sense is not money, for we do not live on money _______（52）on things that money can buy: "goods" such as food and clothing, and “services" such as transport and entertainment.
A country's capacity to produce wealth depends upon many factors, most of ________（53） have an effect on one another. Wealth depends ________（54） a great extent upon a country's natural resources. Some regions of the world are well supplied with coal and minerals, and have fertile soil and a favorable climate; other regions possess none of them.
Next to natural resources _______（55） the ability to turn them to use. China is perhaps as well-off _______（56） the USA in natural resources, but suffered for many years from civil and external(外部的) wars, and _______（57） this and other reasons was _______(58) to develop her resources. Sound and stable political conditions, and _______（59） from foreign invasions, enable a country to develop its natural resources peacefully and steadily, and to produce more wealth than another country equally well favoured by nature but less well ordered.
A country's standard of living does not only depend upon the wealth that is produced and consumed ________（60） its own borders, but also upon what is directly produced through international trade. ________（61）, Britain's wealth in foodstuffs (食品)and other agricultural products would be much less if she had to depend only on _______（62） grown at home. Trade makes it possible for her surplus （过剩的） manufactured goods to be traded abroad for the agricultural products that would __________（63） be lacking. A country's wealth is, therefore, much __________（64）by its manufacturing capacity, if that other countries can be found ready to accept its manufactures.
50. A. however B. furthermore C. similarly D. therefore
51. A. by B. on C. in D. with
52. A .or B. but C. either D. besides
53. A. these B. that C. what D. which
54. A. at B. to C. by D. with
55. A. came B. coming C. comes D. come
56. A. to B. like C. by D. as
57. A .because B. for C. of D. by
58. A. uneasy B. incapable C. impossible D. unable
59. A. resolution B. freedom C. aggression D. destruction
60. A. at B. by C. within D. on
61. A. In short B. For example C. As a result D. On the other hand
62. A. which B. what C. that D. those
63. A. otherwise B. certainly C. however D. therefore
64. A. made B. done C. produced D. influenced