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美国的简介和著名景点介绍 要英文的!

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美国的简介和著名景点介绍 要英文的!
美国的简介和著名景点介绍
全都要英文的!
简介不用太长,梗概就好.
著名景点像白宫之类的
最重要的是不要太难,反正要容易理解
查了一下百科全书下面是一些美国景点的介绍
White House
formerly known as the Executive Mansion (1810–1902) the official office and residence of the president of the United States at 1600 Pennsylvania Avenue N.W.in Washington,D.C.The White House and its landscaped grounds occupy 18 acres (7.2 hectares).Since the administration of George Washington (1789–97),who occupied presidential residences in New York and Philadelphia,every American president has resided at the White House.Originally called the “President's Palace” on early maps,the building was officially named the Executive Mansion in 1810 in order to avoid connotations of royalty.Although the name “White House” was commonly used from about the same time (because the mansion's white-gray sandstone contrasted strikingly with the red brick of nearby buildings),it did not become the official name of the building until 1902,when it was adopted by President Theodore Roosevelt (1901–09).The White House is the oldest federal building in the nation's capital.
United States
United States of America
Form of government:
federal republic with two legislative houses (Senate [100]; House of Representatives [4351])
Head of state and government:
President
Capital:
Washington,D.C.
Official language:
none
Official religion:
none
Monetary unit:
dollar (U.S.$)
Population estimate:
(2007) 302,633,000
Total area (sq mi):
3,676,4862
Total area (sq km):
9,522,0552
Niagara Falls
Niagara Falls in the Niagara River,W N.Y.and S Ont.,Canada; one of the most famous spectacles in North America.The falls are on the international line between the cities of Niagara Falls,N.Y.,and Niagara Falls,Ont.Goat Island splits the cataract into the American Falls (167 ft/51 m high and 1,060 ft/323 m wide) and the Horseshoe,or Canadian,Falls (158 ft/48 m high and 2,600 ft/792 m wide).The governments of the United States and Canada control the appearance of the surrounding area,much of which has been included in parks since 1885.
The earliest written description of the falls is that of Louis Hennepin (in Nouvelle Découverte,1697),who was with the expedition of Robert Cavelier,sieur de La Salle,the French explorer,in 1678.In the 19th cent.,daredevils attempted to brave the falls in barrels,boats,and rubber balls.The great Blondin performed (1859) on a tightrope over the falls,which continue to be a major center of international tourism.Historical and natural history material relating to the region is in the Niagara Falls Museum in the city of Niagara Falls,N.Y.
Panama Canal
Panama Canal waterway across the Isthmus of Panama,connecting the Atlantic (by way of the Caribbean Sea) and Pacific oceans,built by the United States (1904-14) on territory leased from the republic of Panama .The canal,running S and SE from Limón Bay at Colón on the Atlantic to the Bay of Panama at Balboa on the Pacific,is 40 mi (64 km) long from shore to shore and 51 mi (82 km) long between channel entrances.The Pacific terminus is 27 mi (43 km) east of the Caribbean terminus.The minimum depth is 41 ft (12.5 m).
From Limón Bay a ship is raised by Gatún Locks (a set of three) to an elevation 85 ft (25.9 m) above sea level,traverses Gatún Lake,then crosses the Continental Divide through Gaillard (formerly Culebra) Cut and is lowered by Pedro Miguel Lock to Miraflores Lake and then by the Miraflores Locks (a set of two) to sea level.The average tidal range on the Atlantic side is less than a foot (.3 m); that on the Pacific side is 12.6 ft (3.8 m).
Yellowstone National Park
Yellowstone National Park in nw Wyoming and reaching into Montana and Idaho,USA.Established in 1872,it is the oldest and one of the largest US national parks.Formed by volcanic activity,the park contains c.10,000 hot springs (including the giant Hot Springs) and 200 geysers (the most famous of which is "Old Faithful").Other scenic attractions include Yellowstone River and the petrified forests.It is one of the world's greatest wildlife sanctuaries.In 1988 large-scale forest fires devastated much of the park.Area:900,000ha (2.22 million acres).