[2015年度全国职称英语考试综合C]2017年职称英语考试综合类模拟试题：阅读理解

第4部分：阅读理解(第31-45题，每题3分，共45分)
　　下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个选项。
　　第一篇　The National Park Service
　　America's national parks are like old friends. You may not see them for years at a time, but just knowing they're out there makes you feel better. Hearing the names of these famous old friends-Yosemite, Yellowstone, Grand Canyon - revives memories of visits past and promotes dreams of those still to come.
　　From Acadia to Zion, 369 national parks are part of a continually evolving system. Ancient fossil beds, Revolutionary War battlefields, magnificent mountain ranges, and monuments to heroic men and women who molded this country are all a part of our National Park System (NPS). The care and preservation for future generations of these special places is entrusted to the National Park Service. Uniformed Rangers, the most visible representatives of the Service, not only offer park visitors a friendly wave, a helpful answer, or a thought-provoking history lesson, but also are skilled rescuers, firefighters, and dedicated resource protection professionals. The National Park Service ranks also include architects, historians, archaeologists, biologists, and a host of other experts who preserve and protect everything from George Washington's teeth to Thomas Edison's wax recordings.
　　Modern society has brought the National Park Service both massive chalienges and enormous opportunities. Satellite and computer technologies are expanding the educational possibilities of a national park beyond it's physical boundaries. Cities struggling to revive their urban cores are turning to the Park Service for expert assistance to preserve their cultural heritage, create pocket parks and green spaces, and re-energize local economies. Growing communities thirsty for recreational outlets are also working with the NPS to turn abandoned railroad tracks into bike and biking trails, as well as giving unused federal property new life as recreation centers.
　　To help meet these challenges and take advantage of these opportunities, the National Park Service has formed partnerships - some dating back 100 years, some only months old - with other agencies, state and local governments, corporations, American Indian tribes and Alaska Natives, Park Friends groups, cooperating associations, private organizations, community groups and individuals who share the National Park ethic.
　　National Park Week 1996 is a celebration of these partnerships.
　　31. Why are America's national parks like old friends?
　　A. Because they are always out there.
　　B. Because they are very old.

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