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  3. Snow The two things m snow and mountains—which are needed for a ski area are the two things that cause avalanches, large mass

Snow The two things m snow and mountains—which are needed for a ski area are the two things that cause avalanches, large mass

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问题                     Snow
   The two things m snow and mountains—which are needed for a ski area are the two things that cause avalanches, large mass of snow and ice crushing down the side of a mountain—often called "White Death."
   It was the threat of the avalanche and its record as a killer of man in the western mountains that created the snow ranger. He first started on avalanche control work in the winter of 1937—1938 at Alta, Utah, in Wasatch National Forest.
   This mountain valley was becoming well known to skiers. It was dangerous. In fact, more than 120 persons had lost their lives in 1936 and another 200 died in 1937 as a result of avalanches before it became a major ski area.
   Thus, development of Alta and other major ski resorts in the west was dependent upon controlling the avalanche. The Forest Service set out to do it, and did, with its corps of snow rangers.
   It takes many things to make a snow ranger. The snow ranger must be in excellent physical condition. He must be a good skier and a skilled mountain climber. He should have at least a high school education, and the more college courses in geology, physics, and related fields he has, the better.
   He studies snow, terrain, wind, and weather. He learns the conditions that produce avalanches. He learns to forecast avalanches and to bring them roaring on down the mountainsides to reduce their killing strength. The snow ranger learns to do this by using artillery, by blasting with TNT, and by the difficult and skillful art of skiing avalanches down.
   The snow ranger, dressed in a green parka which has a bright yellow shoulder patch, means safety for people on ski slopes. He pulls the trigger on a 75 mm. Recoilless fire, skis waist deep in powder testing snow stability, or talks with the ski area’s operator as he goes about his work to protect the public from the hazards of deep snow on steep mountain slopes.
选项 A、the Forest Service
B、the Resource Bureau
C、the Tourist Board
D、the Sports Bureau
答案A
解析 该题问…‘雪地管理员’受雇于谁?”借助备选答案的特点：答案都是专有名词(首字母都大写且名词前有定冠词the)，所以可以在文章中迅速查找首字母大写的专有名词，然后确认答案。很容易在第四段中发现"The Forest Service set out to do it, and did，with its crops of snow rangers"，该句说“森林服务部和它的护雪场工作人员队伍一起着手做这件事(指控制雪崩)并且做到了”，所以从这句话确认答案是A。
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