In the Arctic Circle, it is not that Eskimos lack ability or industry, but the surroundings restrict constructive effort to the

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问题     In the Arctic Circle, it is not that Eskimos lack ability or industry, but the surroundings restrict constructive effort to the barest necessities of existence. This effectually retards progress to higher development.
    Agriculture is impossible all along the thousands of miles of the north shore. The only wood is such as drifts in. Other than this driftwood, the only available building materials are snow, ice, stone, and bones of animals. All of these have been used for habitations and storage places, differing in various tribes according to the requirements and skill of the workers.
    The lack of necessary timbers to build walls and span wide spaces is probably one reason why these tribes construct their houses at least partly beneath the surface of the ground. This device also makes the houses more impervious (不能渗透的) to the cold.
    Most of us are inclined to think that the Eskimo lives always in an igloo or snow house. This is not entirely true. After the long cold winter, the family is very likely to move, when the weather permits, into a tent of sealskin. The actual construction of such a tent is similar to that used by other, more southerly tribes and will be described later.
    The snow house, however, is an interesting and unique habitation. Our summer campers will not build with snow, but the delicate art is worth recording and some of our winter camps in the mountains might try to make snow houses.
Which of the following about the construction of houses is true?

选项 A、Building materials differ from tribe to tribe.
B、Building materials are the same for all the houses.
C、Building materials are selected according to weather.
D、Building materials are decided by skilled workers.

答案A

解析 本题是一道判断是非题。问下面关于房屋建造的说法中哪个是正确的。根据文章第一段内容,居住在北极圈里的爱斯基摩人,不是因为缺乏能力或勤劳的精神,而是环境将其建筑水平限制在仅能满足最起码的生存需要的水平,这大大地阻碍了他们向前发展的步伐。另外,文章第二段指出,环境客观上限制了爱斯基摩人只能利用有限的建筑材料来建筑住处或贮藏室,而这些建筑物又根据不同需要和建筑者的技术水平在不同部落有所不同。因此,本题的正确答案应是A“各部落的建筑材料各有不同”。
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