二、完形填空Most young people enjoy some forms of physical activity: walking, cycling, football, or mountaineering.
Those who have a passion 21 climbing high and difficult mountains are often 22 with astonishment. Why are men and women 23 to suffer cold and hardship, and to 24 on high mountains? This astonishment is caused, probably, by the difference between mountaineering and other forms of activities 25 which men give their leisure.
Mountaineering is a sport and not a game. There are no man-made rules. There are, of course, 26 of different kinds which it would be dangerous to 27, but it is this freedom from man-made rules 28 makes mountaineering attractive to many people. Those who climb mountains are free to use their own 29.
If we 30 mountaineering with other more familiar sports, we might think that one big difference is 31 mountaineering is not a “team game”. We should be mistaken in this. There are, it is true, “no matches” 32 “teams” of climbers, but when climbers are on a rock face linked by a rope on which their lives may 33, obviously, there is teamwork.
A mountain climber knows that he may have to fight with natural 34 that are stronger and more powerful than man. His sport requires high mental and 35 qualities.
A mountain climber 36 to improve on skill year after year. A skier is probably past his best by the age of thirty, and most international tennis champions 37 in their early twenties. But it is not 38 for men of fifty or sixty to climb the highest mountains in the Alps. They may take more 39 than younger men, but they probably climb with more skill and less 40 of effort, and they certainly experience equal enjoyment.