美国地理概况.ppt

1、The Geography of the United States,A Look at North America - video,Eight Regions of North America,8 Regions of North America,Coastal Range Basin and Range Rocky Mountains Great Plains Interior Lowlands Canadian Shield Appalachian Mountains Coastal Plains,Coastal Range,West of the Rocky Mountains Str

2、etches from Canada to California Made up of Rugged Mountains and Fertile Valleys,Coastal Range,Coastal Range,Basin and Range,West of the Rocky Mountains East of the Sierra Nevadas and the Cascades Varying elevations and isolated mountain ranges Death Valley Death Valley is the lowest point in North

3、America. It is a desert valley located in Eastern California.,Basin and Range,Rocky Mountains,West of the Great Plains East of the Great Basin Rugged Mountains with High Elevations Includes the Continental Divide The Continental Divide 大陆分水岭determines the directional flow of rivers,Rocky Mountains,G

4、reat Plains,West of the Interior Lowlands East of the Rocky Mountains Flatlands that increase in elevation slightly to the west Known for grasslands,Great Plains,Great Plains,Interior Lowlands,West of the Appalachian Mountains East of the Great Plains Lowlands of rolling flatlands Rivers Broad valle

5、ys and Grassy hills,Interior Lowlands,Interior Lowlands,Canadian Shield 加拿大地盾 - video,Wraps around the southern portions of the Great Lakes and the Hudson Bay Hills worn by erosion Hundreds of glacier carved lakes 冰川湖 Some of the oldest rock formations in North America,Canadian Shield,These are Tree

6、s.,Thousands of Lakes,Canadian Shield, rock formations,Appalachian Mountains,West of the Coastal Plains Range from Canada to western Alabama Oldest mountains in North America Old eroded mountains,Appalachian Mountains,Appalachian Mountains in the fall.,Coastal Plains,Stretches along the Atlantic Oce

7、an Broad lowland with excellent harbors Borders the Gulf of Mexico Long sandy beaches,A bay in the Coastal Plains,Inlets 河口, bays and capes 海角, 岬along the Coastal Plains,The Contour of the US,The Rocky Mountainsin Canada and the United States,Appalachian Mountains,Mississippi River,US Geography Basi

8、cs,Third largest country in the world. Half the size of Russia. One third the size of Africa. Half the size of South America. 2 times the size of Western Europe.,Regions & Time Zones of the U. S. video (Geography of the USA),American Flag - video,The Star Spangled Banner (national anthem),星条旗,Topogr

9、aphy,Topography of the US,The Mississippi is the traditional dividing line in America between “East” and “West”.,Topography of the Northeast,New York, New York!,Boston, Massachusetts : The Hotbed of Revolution,Philadelphia, Pennsylvania : The Birth of Liberty,A New England Fall,Kancamagus Highway, M

10、aine,Covered Bridge over the Connecticut River,The back roadsof Vermont,North-South Divide: The Mason-Dixon Line,Charles Mason & Jeremiah Dixon: 1763-1767,Mason-Dixon line梅森迪克森线是美国宾夕法尼亚州和马里兰州的分界线，也是南北战征之前美国的南北区域分界线。这条分界线是美国历史上文化和经济的分界线。其名称是为了纪念发现宾夕法尼亚和马里兰之间的地理分界线的18世纪的英格兰探险者Jeremiah Dixon和Charles Ma

11、son。 这一地理名词在美国的电影，音乐和文学作品中常有提及。,Topography of the Southeast,Charleston, SC: The Souths First Port,New Orleans, LA: The Big Easy,Topography of the Midwest,The Great Lakes region contains not only the five main lakes themselves, but also numerous minor lakes and rivers, as well as approximately 35,000

12、 islands.,The Great Lakes are a collection of freshwater lakes located in eastern North America, on the Canada United States border. Consisting of Lakes Superior, Michigan, Huron, Erie, and Ontario, they form the largest group of freshwater lakes on Earth. They are sometimes referred to as the Third

13、 Coast by some citizens of the United States.,Chicago Skyline: The “Second” City,芝加哥,芝加哥是美国第三大城市，人们将这座城市称为“风城”（The Windy City）、“第二城”（The Second City）、“芝城”（Chi-Town）、“世界屠猪城”（Hog Butcher for the World）、“巨肩之城”（City of the Big Shoulders）、“劳动之城”（The City That Works）。如此多的称呼指的都是一座城市芝加哥（Chicago）。如今的芝加哥是美国非常

14、受欢迎的旅游城市，芝加哥市也有很多著名的景点，如希尔斯大厦、林肯公园、林肯动物园、旧水塔、密歇根大街、海军码头等每年都会吸引众多的游客来此。如果您是篮球迷，自然不要忘记去芝加哥公牛队（Chicago Bulls）的主场联合中心球馆(United Center)一睹“飞人”迈克尔乔丹（Michael Jordan）雕像的风采。,The Great Plains,Topography of the West,Los Angeles: The City of Angels?,Hollywood: City of Lost Dreams,(Capitol Records) (国会唱片) (属于EMI百

15、代唱片),Bodies of Water,Chesapeake Bay,Great Salt Lake,LakeOkeechobee,Rivers,Hudson R.,Potomac R.,Mississippi R.,Ohio R.,Missouri R.,Arkansas R.,Colorado R.,Columbia R.,Yukon R.,Rio Grande R.,St. Lawrence R.,The longest river in the United States is the Missouri River. (2,540 miles),The Mississippi: Am

16、ericas Great River Road,The “Big Muddy”. 2,350 miles. (1英里约1.6公里) Draining all or part of 31 states & 2 Canadian provinces. Covers 40% of the U. S.,Mississippi Riverboat,比较 The Yangtze River is about 6300 km long (3915 mi).,Great Salt Lake,2000 square miles. 10 28 deep. 6 times saltier than the ocea

17、ns.,Lake Okeechobee, FL,The Gulf of Mexico,Mountains & Plateaus,Appalachian Mts.,Rocky Mts.,Cascade Mts.,Sierra Nevada Mts.,Alaskan Range, Mt. Whitney, Mt. McKinley, Pikes Peak,Adirondack Mts.,The Continental Divide,Continental Divide,the main series of mountain ridges in North America, chiefly the

18、crests of the Rocky Mountains, which form a watershed separating the rivers flowing eastwards into the Atlantic Ocean or the Gulf of Mexico from those flowing westwards into the Pacific 北美洲大陆分水岭。 亦称 Great Divide,Grand Canyon (Arizona),Plains,Central Plains,Atlantic Coastal Plains,Gulf Coastal Plains

19、,GreatBasin,The Great Plains,Plateaus,Cumberland Plateau,Cumberland Plateau & Gap 坎伯兰高原和岬口,AL, KY, TN, VA, WV 24,640 sq. mi. Natural passage Gap through the Cumberland Mts.,Deserts,Mohave Desert,Death Valley,.muh:vi:,Mohave Desert 3,000,Death Valley, CA,3.3 million acres. 95% wilderness.,Completed M

20、ap,LakeOkeechobee,Chesapeake Bay,Appalachian Mts.,Rocky Mts.,Cascade Mts.,Sierra Nevada Mts.,Alaskan Range, Mt. Whitney, Mt. McKinley, Pikes Peak,Adirondack Mts.,Central Plains,Atlantic Coastal Plains,Gulf Coastal Plains,Great Basin,Cumberland Plateau,Hudson R.,Potomac R.,Mississippi R.,Ohio R.,Miss

21、ouri R.,Arkansas R.,Colorado R.,Columbia R.,Yukon R.,Rio Grande R.,St. Lawrence R.,Great Salt Lake,Mohave Desert,Death Valley,Climate,The humid east,Four major sub-regions The northernmost zone: long winters Further southward: milder winters and hot summers Line that separates the “north” and “South

22、” The American South A flourishing winter tourist industry Intensive form of specialized agriculture Southernmost: tropical,The Arid and Semi-Arid Western United States,This area is broadly defined as all of Arizona, New Mexico, Nevada, and Utah plus the arid and semi-arid regions of California, Col

23、orado, Idaho, Oregon, Montana, and Wyoming. Rainfall is scarce and undependable, and the only important human settlement occurs in irrigated oases. The regions economy is a mixture of ranching, dryland and irrigated agriculture, tourism, retail, manufacturing, and high technology industry.,The humid-arid transition,Fine farmland Fine grazing land The prairie made into “Barn of America” through high technology,The humid pacific coast,Humid region in the