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Yellowstone Park(黄石公园)Yellowstone is the United States' first and most famous national park. This large wilderness area is very high in the Rocky Mountains(落基山脉) of the northwestern US. It is bigger than the 1 (biggest, smallest) state in the US. Yellowstone became the world's first national park in 1872. Yellowstone has many different kinds of unusual scenery. Although millions of people visit the park, the land remains 2 (unchanged, unchanging)-still a wilderness. The valley of the Yellowstone River has beautifully coloured rocks and three large waterfalls. 3 (In, On) the early morning or evening, visitors sometimes see large deer-like animals, or buffalo(水牛) 4 (eat, eating) grass along the shores of Lake Yellowstone. The high mountains around Yellowstone are covered 5 (with, by) evergreen forests. Yellowstone Park has many areas 6 (with, of) hot springs(泉). These are caused by heat 7 (from, in) the hot centre of the earth. Old Faithful(老忠诚) is the most famous. 8 (Every, Each) 70 minutes, Old Faithful sends hot water about 150 feet high 9 (into, in) the air. Here, hot spring water runs down over rocks 10 (onto, into) deep pools. It looks 11 (rather, fairly) like a wonderful white cake. When you visit Yellowstone, why 12 (not live, not to live) like a cowboy? You can stay 13 (at, in) an Old West country hotel. You'll enjoy typical cowboy food outdoor. You can ride a horse along one of the many paths or trails. There are over 1,000 miles of trails around Yellowstone. If you like excitement, take a boat trip down the fast Snake River. Or spend a 14 (quiet, quite) summer day 15 (fishing, to fish) by a river or a blue mountain lake. In winter, Yellowstone Park is covered with heavy snow, but visitors still come to skate, with clouds of steam above them and snow around Yellowstone's hot springs look even more wonderful.
解析：
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1．smallest; 2．unchanged; 3．In; 4．eating; 5．with; 6．with; 7．from; 8．Every; 9．into; 10．into; 11．rather; 12．not live; 13．at; 14．quiet; 15．fishing |
