英文美国介绍PPT课件.pptx

The national emblem of the United States and the national bird
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The location of USA
Their home is located in the central North America, the Atlantic ocean in the east, west near the Pacific Ocean, the north is Canada, southern border with Mexico. Except Alaska and Hawaii are located in the lower 48 states of the United States.
The land area of about square kilometers, the world's third or fourth (water area have differences), population of about 310 million people, the number of the world's third, is a multicultural and diverse people country, is given priority to with white, but there are a large number of immigrants.
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The Appalachian mountains
The Appalachian mountains is located in the eastern United States, in eastern North America great mountains, is the eastern mountains north American states collectively, is also called the Appalachian highlands or the Appalachian mountains. Nearly 3200 km, and the width of 130 ~ 560 km northeast to southwest.
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The Rocky Mountains
The Rocky Mountains in the americas cordilleras backbone in North America, is composed of many small mountains, was known as the "backbone" of North America, from Alaska to Mexico, north and south throughout the more than 4500 kilometers. The Rocky Mountains is composed of many small mountains, including the name of the article 39. The huge mountains north and south is long and narrow, western Canada on the north, the south Texas area of the southwestern United States, almost all throughout the region. In addition to the st. Lawrence river, almost all the river originates from the Rocky Mountains of North America, is an important watershed in China.
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The Appalachian mountains
The Andes Mountains belong to the Cordilleras, from north to south, a total length of 8900 kilometers, is the world's longest mountain range, runs through the western continent, known as the "South America back", the mountains there are many more than 6000 meters