C. Choose the best answer and complete the passage（选择最恰当的选项完成短文）
Travelling to Antarctica has become increasingly popular in recent years. Although it was once a destination only for scientists and explorers, more and more travellers are now interested in visiting the southernmost continent on Earth. For many people, Antarctica represents a place of mystery, purity, and 59.
Most tourists reach Antarctica by taking a ship from the southern parts of South America. The journey usually takes several days, during which travellers may experience strong winds and big waves. However, once they arrive, the natural beauty of the icy land makes the 60 trip worthwhile. Huge icebergs float calmly in the ocean, and snowy mountains rise sharply against the bright blue sky. The silence of the environment gives visitors a sense of peace that is hard to find elsewhere.
One of the biggest attractions of Antarctic tourism is the wildlife. Visitors often see penguins walking in groups, seals resting on the ice, and seabirds flying above the water. Some tours 61 travellers to ride small boats to get closer to these animals, while still keeping a respectful distance to avoid disturbing them.
Even so, travelling to Antarctica comes with 62. The environment is extremely fragile, and human activity can easily damage it. Tour companies must follow strict rules, such as limiting the number of visitors who can step onto the land 63 and asking all travellers to clean their boots before going ashore. These measures help protect the ecosystem and ensure that future generations can continue to appreciate the beauty of this frozen world.
For many people, a trip to Antarctica is a once-in-a-lifetime experience. It offers not only breathtaking landscapes but also a chance to understand why protecting this unique environment is so important. 64, it is a journey that leaves both the eyes and the mind deeply impressed.
() 59. A. experience B. activities C. events D. adventure
() 60. A. long B. large C. boring D. exciting
() 61. A. allow B. stop C. enable D. prevent
() 62. A. chances B. responsibility C. choices D. promise
() 63. A. at one time B. at once C. once in a while D. on time
() 64. A. On the other hand B. What’s more
C. In this way D. In a word

59. D 60. A 61. A 62. B 63. A 64. D

【分析】
首先通读全文，理解文章主旨是介绍南极旅游的现状、特点、面临的责任及意义。解题时需结合上下文语境、词汇辨析、固定搭配及逻辑关系逐一分析每个空：59题需匹配与“mystery、purity”并列的抽象名词，符合南极特质的词汇；60题结合前文“takes several days”判断旅程属性；61题考查“允许某人做某事”的固定搭配；62题结合后文环境脆弱的描述，判断南极旅游带来的属性；63题结合“限制游客数量”的语境，选择表“同时”的短语；64题需选择表总结的逻辑短语。
【解析】
59题：前文提到南极代表神秘、纯净，adventure（冒险）符合南极对游客的独特吸引力，故选D；
60题：前文说明旅程耗时数日，因此是“long trip（长途旅程）”，故选A；
61题：allow sb to do sth为固定搭配，意为“允许某人做某事”，符合旅行团安排游客活动的语境，故选A；
62题：后文强调南极环境脆弱需遵守规则，因此南极旅游伴随“responsibility（责任）”，故选B；
63题：at one time意为“同时”，符合“限制同时登陆的游客数量”的语境，故选A；
64题：前文总结南极之旅的意义，In a word意为“总之”，用于总结全文，故选D。
【答案】
59.D 60.A 61.A 62.B 63.A 64.D
【知识点】
完形填空、词汇辨析、语境理解
【点评】
本文围绕南极旅游展开，考查学生对词汇用法、上下文逻辑的掌握，需结合语境辨析词义及短语用法，整体难度适中。
【难度系数】
0.5