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  3. When the United States Congress created Yellowstone National Park in 1872, the goal was to set aside a place where Americans cou

When the United States Congress created Yellowstone National Park in 1872, the goal was to set aside a place where Americans cou

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问题     When the United States Congress created Yellowstone National Park in 1872, the goal was to set aside a place where Americans could enjoy the beauty of nature for years to come. Now, 142 years later, there are hundreds of national parks across the country, and technology is changing the way people experience them. Should park visitors be able to use cell phones, or should their use be restricted?
    "Connectivity presents a real challenge to all of us." Al Nash says. He is a public affairs officer at Yellowstone National Park. He says cell phone service at Yellowstone is available in parts of the park with stores and campgrounds. This makes it easy for visitors to share photos of their trip on social networking sites and to stay in touch with friends and family members. If a park visitor is hurt or in danger, cell phones make it easier to get help. Some say the ability to download applications that provide information about plants and animals in the park can enrich a visitor’s experience.
    Others say cell phones disturb people’s enjoyment of our national parks. In their view, cell phone towers are an eyesore, and they would rather hear the sound of birds than the ring of an incoming call. Can you imagine looking out a peaceful lake or field of grass only to be disturbed by a person shouting into their phone, "Can you hear me now?"
    Nash says Yellowstone tries to strike a balance. "Ultimately, our job is to let visitors understand and enjoy nature better while protecting what people find special about Yellowstone, and one of those things that’s special is the ability to get away from the hustle and bustle of one’s daily life."
National parks were established ______.
选项 A、to show respect to former presidents
B、to raise public awareness about climate change
C、to preserve areas of natural beauty
D、to create job opportunities
答案C
解析 定位到文章第一段首句“…the goal was to set aside a place where Americans could enjoy the beauty of nature for years to come．”这里明确指出，国家公园的建立是为了留出一个区域让美国人能享受自然风光，故选C。
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