2. 职称英语
  3. The first permanent shelters were probably built twenty or forty thousand ye

The first permanent shelters were probably built twenty or forty thousand ye

游客2025-01-13  18
问题     The first permanent shelters were probably built twenty or forty thousand years ago by fish-eating people who lived in the places as long as the fish supply lasted. Fish-eaters could stay in one place for several years. However, once man learned to farm, he could live longer in one place. Thus, he was able to build a permanent home. Once again, he built his home with the materials he found at hand. In Egypt, for example, wood was scarce, so most houses were built of bricks made of dried mud, with a roof supported by tree trunks.
    When the Norsemen came from Scandinavia to northern Europe, they found many forests, so they built homes with a framework of heavy tree trunks and then filled the space between the trunks with clay. The Eskimos, on the other hand, lived in a land where there was little or no wood. They learned to adapt their homes perfectly to their surroundings. In the wintertime, when everything was covered with snow and ice, the Eskimos built their homes with blocks of ice. When the warm weather came and melted the ice, the Eskimos lived in a tent made of animal skins.
    The weather is man’s worst natural enemy. He has to protect himself from extremes of heat and cold and from storms, wind and rain. Where there are torrential rains, houses are either built on piles to keep them off the ground, or they have steep thatched roofs to drain off the rain. People living in the Congo River region have found that steep, heavily-thatched roofs drain off the jungle rains more quickly.
    Protection from danger has also influenced the type of house man builds. When enemies threatened him, man made his house as inaccessible as possible. The tree-dwellers of the Philippines protect themselves by living high above the ground. When danger threatens, they remove the ladders leading to their homes. The cliff dwellers of the American Southwest built their homes high up on the sides of cliffs, where access was very difficult.
    Nomad tribes must move from place to place, taking care of flocks of sheep that are always in need of fresh grass. Their houses must be simple and easy to transport. The nomads of central Asia have developed a house made of a framework of poles covered with felt. The house is round because the framework is curved, and there is a hole at the top to let the smoke out. [br] When danger threatens, the tree-dwellers of the Philippines______.
选项 A、take away their ladders
B、bombard the enemy from above
C、pull up the bridge over their moat
D、wind up the ropes leading to their homes
答案 A
解析
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