美国地理概况(课堂PPT)课件

1、The Geographyof theUnited States123A Look at North America - video4Eight Regions of North America568 Regions of North AmericaCoastal RangeBasin and RangeRocky MountainsGreat PlainsInterior LowlandsCanadian ShieldAppalachian MountainsCoastal Plains7Coastal RangeWest of the Rocky MountainsStretches fr

2、om Canada to CaliforniaMade up of Rugged Mountains and Fertile Valleys8Coastal Range9Coastal Range10Basin and RangeWest of the Rocky MountainsEast of the Sierra Nevadas and the CascadesVarying elevations and isolated mountain rangesDeath ValleyDeath Valley is the lowest point in North America.It is

3、a desert valley located in Eastern California.11Basin and Range12Rocky MountainsWest of the Great Plains East of the Great BasinRugged Mountains with High ElevationsIncludes the Continental DivideThe Continental Divide 大陆分水岭determines the directional flow of rivers13Rocky Mountains14Great PlainsWest

4、 of the Interior LowlandsEast of the Rocky MountainsFlatlands that increase in elevation slightly to the westKnown for grasslands15Great Plains16Great Plains17Interior LowlandsWest of the Appalachian MountainsEast of the Great PlainsLowlands of rolling flatlandsRivers Broad valleys and Grassy hills1

5、8Interior Lowlands19Interior Lowlands20Canadian Shield 加拿大地盾 - videoWraps around the southern portions of the Great Lakes and the Hudson BayHills worn by erosionHundreds of glacier carved lakes 冰川湖Some of the oldest rock formations in North America21Canadian ShieldThese are Trees.Thousands of Lakes2

6、2Canadian Shield, rock formations23Appalachian MountainsWest of the Coastal PlainsRange from Canada to western AlabamaOldest mountains in North AmericaOld eroded mountains24Appalachian Mountains25Appalachian Mountains in the fall.26Coastal PlainsStretches along the Atlantic OceanBroad lowland with e

7、xcellent harborsBorders the Gulf of MexicoLong sandy beaches27A bay in the Coastal Plains28Inlets 河口, bays and capes 海角, 岬along the Coastal Plains29303132The Contour of the US333435The Rocky Mountainsin Canada and the United States 36Appalachian Mountains 37Mississippi River 3839US Geography Basics

8、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.40Regions & Time Zones of the U. S. video (Geography of the USA)41American Flag - video42The Star Spangled Banner (national anthem)43星条旗44Topo

9、graphy45Topography of the USThe Mississippi is the traditional dividing line in America between “East” and “West”.46Topography of the Northeast47New York, New York!48Boston, Massachusetts : The Hotbed of Revolution49Philadelphia, Pennsylvania : The Birth of Liberty50A New England Fall Kancamagus Hig

10、hway, MaineCovered Bridge over the Connecticut RiverThe back roadsof Vermont51North-South Divide: The Mason-Dixon LineCharles Mason & Jeremiah Dixon: 1763-1767Mason-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Charle

11、s Mason。 这一地理名词在美国的电影，音乐和文学作品中常有提及。52Topography of the Southeast53Charleston, SC: The Souths First Port54New Orleans, LA: The Big Easy55Topography of the Midwest56The Great Lakes region contains not only the five main lakes themselves, but also numerous minor lakes and rivers, as well as approximate

12、ly 35,000islands.57The 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

13、the Third Coast by some citizens of the United States.58Chicago Skyline: The “Second” City59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

14、今的芝加哥是美国非常受欢迎的旅游城市，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。60The Great Plains61Topography of the West62Los Angeles: The City of Angels?63Hollywood: City of Lost Dreams(Capitol Records)(国

15、会唱片)(属于EMI百代唱片)64Bodies of Water Chesapeake BayGreat Salt LakeLakeOkeechobee6566 RiversHudson 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)67The Mississippi:

16、 Americas 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.68Mississippi Riverboat比较 The Yangtze River is about 6300 km long (3915 mi).69Great Salt Lake 2000 square miles. 10 28 deep. 6 times saltier than the

17、oceans.70Lake Okeechobee, FL71The Gulf of Mexico72Mountains & PlateausAppalachian Mts.Rocky Mts.Cascade Mts.Sierra Nevada Mts.Alaskan Range Mt. Whitney Mt. McKinley Pikes PeakAdirondack Mts.7374The Continental Divide75Continental Dividethe 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 Divide76Grand Canyon (Arizona)77PlainsCentral PlainsAtlantic Coastal PlainsGulf Coastal PlainsG

19、reatBasin78The Great Plains79PlateausCumberland Plateau80Cumberland 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.81DesertsMohave DesertDeath Valley.muh:vi: 82Mohave Desert 3,00083Death Valley, CA 3.3 million acres. 95% wilderness.84Completed

20、 MapLakeOkeechobee Chesapeake BayAppalachian Mts.Rocky Mts.Cascade Mts.Sierra Nevada Mts.Alaskan Range Mt. Whitney Mt. McKinley Pikes PeakAdirondack Mts.Central PlainsAtlantic Coastal PlainsGulf Coastal PlainsGreat BasinCumberland PlateauHudson R.Potomac R.Mississippi R.Ohio R.Missouri R.Arkansas R.

21、Colorado R.Columbia R.Yukon R.Rio Grande R.St. Lawrence R.Great Salt LakeMohave DesertDeath Valley85Climate868788The humid eastFour major sub-regionsThe northernmost zone: long wintersFurther southward: milder winters and hot summersLine that separates the “north” and “South”The American SouthA flou

22、rishing winter tourist industryIntensive form of specialized agricultureSouthernmost: tropical89The 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, Colorado, Idaho, Oregon, Montan

23、a, 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.90The humid-arid transitionFine farmlandFine grazing landThe prairie made into “Barn of America” through high technology91The humid pacific coastHumid region in the west: narr