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　　Most young people enjoy physical activities, walking, cycling, football, or mountaineering.
　　These who have a passion 26 climbing high and difficult mountains are often 27 with astonishment. Why are men and women 28 to suffer cold and hardship, and to 29 on high mountains? This astonishment is caused, probably, by the difference between mountaineering and other forms of activities 30 which men give their leisure.
　　There are no man-made rules, as there are for 31 as golf and football. There are, of course, rules of different kinds which it would be dangerous to 32 , but it is this freedom from man-made rules 33 makes mountaineering attractive to many people. Those who climb mountains are free to their own 34 .
　　If we 35 mountaineering with other more familiar sports, we might think that one big difference is 36 mountaineering is not a team work. However, it is only our misunderstanding. There are, in fact, no :matches 37 teams of climbers, but when climbers are on a rock face linked by a rope on which their lives may 38 , obviously, there is teamwork.
　　A mountain climber knows that he may have to fight with natural 39 that ate stronger and more powerful than man. His sport requires high mental and 40 qualities.
　　A mountain climber 41 to improve on skill year after year. A skier is probably past his best by the age of thirty, and most international tennis champions 42 in their early twenties. But it is not 43 for men of fifty or sixty to climb the highest mountains in the Alps. They may take more 44 than younger men, but they probably climb more skill and less 45 of effort, and they certainly experience equal enjoyment.

　　26. [A]for [B]in [C]to [D] of
　　27. [A]looked up to [B]looked forward [C]looked into [D] looked upon
　　28. [A]willing [B]reluctant [C]unwilling [D] probable
　　29. [A]take pains [B]run risk [C] take a risk [D] make efforts
　　30. [A]to [B]with [C]for [D]towards
　　31. [A]so [B] various [C] different [D]such
　　32. [A] apply [B] worry [C] ignore [D] notice
　　33. [A] which [B] that [C] how [D] why
　　34. [A] methods [B] forms [C] rules [D] activities
　　35. [A] correlate [B] relate [C] compare [D] contrast
　　36. [A] for [B] what [C] which [D] that
　　37. [A]within [B]from [C]beyond [D]between
　　38. [A]exist [B]go [C]depend [D]confide
　　39. [A]strength [B]storms [C]powers [D]forces
　　40. [A]physician [B]physical [C]physiological [D]psychological
　　41. [A]tries [B]continues [C]wants [D]decides
　　42. [A]will be [B]appear [C]are [D]is
　　43. [A]unusual [B]normal [C]common [D]strange
　　44. [A]strength [B]efforts [C]energy [D]time
　　45. [A]shortage [B]lack [C]rubbish [D]waste

　　26. A have a passion for sth 对——有强烈的感情、爱好 。
　　27. D look up to仰慕、尊敬某人, look forward期盼，盼望, look into调查, look upon把——看作，把——视为 。
　　28. A willingly愿意的 。
　　29. C run risk冒险（被动的处于危险之中）, take a risk冒险。
　　30. A give leisure to sth 把空闲时间用于—— 。
　　31. D so + adj + a（n） + n., such + a（n）+ adj + n 。
　　32. C 此处的含义为不遵守规定登山会很危险 。
　　33. B It is —— that ——为强调句型 。
　　34. A 文中的意思为登山者们自由地选择登山的方法。
　　35. D compare with与——比较, contrast with对比、对照，指比较某一事物与另一事物，以显示它们的相异之处，表现明显的差别。
　　36. D 连词that引导的从句作系动词 is的表语 。
　　37. D between在——之间 。
　　38. C depend on sb or sth需要某人或某事的支持和帮助 。
　　39. D strength力量的强度, power运用能力或体力和脑力来做某事, force实施力量，产生行动或征服对手。
　　40. B mental智力的, physical体力的 。
　　41. B year after year后应该选有持续之意的动词。
　　42. C be + in + one’s twenties 表示在某人二十多岁时 。
　　43. A unusual 不寻常的 。
　　44. D 根据文章的含义，爬山者年龄大应该使用更多的时间。
　　45. D shortage短缺, waste浪费。