单选题 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) games 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 use 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 are 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 with more skill and less (45) of effort, and they certainly experience equal enjoyment.

【正确答案】 A
【答案解析】[解析] 此题考查词语搭配。have a passion for sth．为固定搭配，意为“对…有强烈的感情、爱好”。
【正确答案】 D
【答案解析】[解析] 此题考查动词短语的搭配和对文意的理解。A项look up to意为“仰慕，尊敬(某人)”；B项look forward意为“期待，盼望”，与介词to搭配；C项look into意为“调查(问题、罪行等)”；只有D项look upon(又作look on)有“把…看作，把…视为”之意，符合原文的意思。
【正确答案】 A
【答案解析】[解析] 此题考查对上下文的理解。A项willing意为“愿意的”，前一句话已表明人们热爱攀登高山险山，根据上下文推测，此处应为“愿意的”。
【正确答案】 C
【答案解析】[解析] 此题考查短语辨析和对文意的理解。B项run risk意为“冒险”，有被动地处于危险之中的意思；C项take a risk也为“冒险”之意，但不同于B项，这里有明知道有危险也要主动去冒险的意思。根据上下文推测，既然登山者愿意遭受严寒克服困难，应该是主动去冒险。
【正确答案】 A
【答案解析】[解析] give leisure to sth．的意思是“把空闲时间用于…”。
【正确答案】 D
【答案解析】[解析] 此句的意思是“像高尔夫和足球那样的游戏”，因为词性不同，当修饰单数名词时，so的用法是so+adj.+a(n)+n.，如 so tall a man；而such的用法是such+a(n)+adj.+n.，如such a beautiful girl。
【正确答案】 C
【答案解析】[解析] 此句意为“不遵守规定登山会很危险”。C项ignore为“忽视，不理”，最符合题意。
【正确答案】 B
【答案解析】[解析] 此题考查对语法句型的掌握。“It is…that…”为强调句型。
【正确答案】 A
【答案解析】[解析] 此题考查对文意的理解。文中的意思是“登山者们自由地选择登山方法”，故选择A项。
【正确答案】 D
【答案解析】[解析] 此题考查词义辨析。C项compare with意为“与…比较”；D项contrast with意为“对比，对照”，指比较某一物与另一物，以显出它们相异之处，出现明显的差别。此句后面有“one big difference”。
【正确答案】 D
【答案解析】[解析] 连词that引导的从句作系动词is的表语。可根据选项的词性和其在句子中作的语法成分进行分析。
【正确答案】 D
【答案解析】[解析] 此题考查介词的用法。D项between意为“在…之间，”句意为“登山队伍之间没有竞争比赛，这是事实”。
【正确答案】 C
【答案解析】[解析] 此题考查词义辨析。depend on sb．or sth．指“需要某人或某物的支持和帮助”，文章的意思是“他们的生命取决于一根绳索”。且depend与介词on搭配。
【正确答案】 D
【答案解析】[解析] 此题考查词义辨析。A，C，D项都有“力量”之意。但 strength强调“力量的强度”；power指“运用能力或是体力和脑力来做某事”；force指“实施力量，产生行动或是征服对手”，最符合题意。
【正确答案】 B
【答案解析】[解析] 这里与。mental“智力的”相对应的应为。physical“体力的”。
【正确答案】 B
【答案解析】[解析] 此题考查对文意的理解。根据此句后面的year after year，此处应选有“持续”之意的动词B项。
【正确答案】 C
【答案解析】[解析] 系动词be+in+one's twenties表示“在某人二十多岁时”。因为主语是名词复数，故选C。
【正确答案】 A
【答案解析】[解析] 此题考查词义辨析和对文意的理解。A项unusual意为“不寻常的”根据上下文，双重否定表示肯定。
【正确答案】 D
【答案解析】[解析] 根据对上下文的理解。爬山者年龄大应该“使用更多的时间”。
【正确答案】 D
【答案解析】[解析] A项shortage意为“短缺”；D项waste意为“浪费”。此处指保存体力，不浪费体力。