Niagara Falls is a great tourist _______ drawing millions of visitors from all over the world every year.

A. scene　　　　　　 B. interest　　　　 C. attraction　　 D. view

Niagara Falls is a great tourist _______ drawing millions of visitors from all over the world every year.

A. scene　　　　　　 Binterest　　　　 C. attraction　　 D. view

　　Niagara Falls, in east central North America, is the second largest waterfall on the globe next to Victoria Falls in southern Africa．It located on the Niagara River, in western New York and southeastern Ontario. One fifth of all the fresh water in the world lies in the four Upper Great Lakes--Michigan, Huron, Superior and Erie. All the outflow empties into the Niagara river and finally cascades（成瀑布落下）over the falls. Niagara Falls consists of three separate waterfalls：Horseshoe Falls (sometimes called Canadian Falls) , American Falls, and the smaller, neighboring Bridal Veil Falls（新娘面纱瀑布）. While not especially high, Niagara Falls is very wide, and is by far the most voluminous（容量大的）waterfall in North America.

　　Niagara Falls is a great tourist attraction, drawing millions of visitors each year. The falls may be viewed from parks located on either side of the river, from observation towers, from boats, from Goat Island, and from the Rainbow Bridge, located a short distance downstream. Visitors also may enter the Cave of the Winds, situated behind a curtain（帘）of falling water near the base of the American Falls.

　　The Niagara is a fairly young river, only 12,000 years old! The Niagara Escarpment, which was created by erosion（侵蚀）is much older. The Niagara's large volume of flow, averaging about 5,520cu. m. per second, give the river great power potential（电能）. In 1950 the United States and Canada signed an agreement to build power station, and soon after that the major power stations were built. The Canadians built the twin Sir Adam Beck-Niagara power stations at Queenstown, Ontario. The Americans constructed the Robert Moses-Niagara Power Plant near Lewiston, New York. Both projects, each located about 6 km below Niagara Falls. Much of the electricity is used by industries in the nearby cities of Niagara Falls, New York, and Niagara Falls, Ontario.

（1）The Niagara Falls belongs to ________ .

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（2）How many power stations are mentioned in the passage?

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（3）Which part of waterfall is called “Bridal Veil Falls”?

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（4）The falls may be viewed from about ________ places.

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