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【旅游地理】阅读下列图文材料,回答问题。

世界有三大涌潮:印度恒河潮,巴西亚马逊潮与中国钱塘潮。诗云:“钱塘一望浪波连,顷刻狂澜横眼前,看似平常江水里,蕴藏能量可惊天。”潮头初临时,江面闪现出一条白线,伴之以隆隆的声响,潮头由远而近,飞驰而来,潮头推拥,鸣声如雷,顷刻间,潮峰耸起一面三四米高的水墙直立于江面,喷珠溅玉,势如万马奔腾。

壮观的钱塘江潮是如何形成的?并分析钱塘江沿岸发展观潮旅游业的条件。

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答案(点此获取答案解析)

钱塘江大潮的形成应从三个角度分析:一是喇叭口式的海湾特点, 钱塘江外杭州湾,外宽内窄,外深内浅;二是月球和太阳对地球的引力,初一、十五往往是大潮;三是夏季风的风涌作用。钱塘江沿岸发展观潮旅游业的条件可以从以下角度分析:钱塘江潮气势磅礴,久负盛名,知名度高;观潮活动历史悠久,人文景观也丰富;地域组合、集群状况条件好;地处经济发达区域,基础设施完善,客源市场广阔;交通便利

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    “Most children,” Asher Svidensky says, “are a little afraid of golden eagles. However, Kazakh boys in western Mongolia start learning how to use the huge birds to hunt for foxes and hares at the age of 13.” Svidensky, a photographer and travel writer, shot five boys learning the skill as well as the girl, Ashol Pan. “To see her with the eagle was amazing,” he recalls. “She was a lot more comfortable with it, a lot more powerful with it and a lot more at ease with it.”

    The Kazakhs in western Mongolia are the only people that hunt with golden eagles, and today there are around 400 practising eagle hunters. Ashol Pan, the daughter of a famous hunter, may well be the country's only girl hunter.

    They hunt in winter, when the temperatures can drop to -40℃. A hunt begins with days of traveling on horseback through a snow mountain or ridge (山脉) giving an excellent view of prey for miles around. Hunters generally work in teams. After a fox is discovered, riders rush to frighten it into the open, and an eagle is released (释放). If the eagle fails to make a kill, another is released.

     “The skill of hunting with eagles,” Svidensky says, “lies in bringing an unexpected force of nature under control. You don't really control the eagle. You can try and make her hunt an animal, and then it's a matter of nature. What will the eagle do? Will she make it? How will you get her back afterwards?”

    Svidensky describes Ashol Pan as a smiling, sweet and shy girl. “Ashol Pan stands for something about Mongolia in the 21st century,” says Svidensky. “Everything there is going to change and is going to be redefined (重新定义), and the possibility is amazing.”