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1、The number of the stars and stripesThe meaning of the stars and stripesThe meaning of the colors,The national flag,50 stars:50 states 13 stripes:the first 13 states that used to be the colonies red:valor and hardiness white:innocence and purity blue:vigilance,perseverance and justice,The national fl
2、ag,The national emblem,The national flower,Bald Eagle,The Statue of Liberty,Uncle Sam,American Gothic,Buffalo Nickel,The capitol of America,The White House,Chapter 1Geographical Features and Natural Resources,Size 1.9,372,610 sq.km 2.4,500 km from east to west 3.the fourth largest country,1.俄罗斯-17,0
3、75,200 2.加拿大-9,984,670 3.中国-9,600,000 4.美国-9,372,615 5.巴西-8,511,965 6.澳大利亚-7,686,850 7.印度-2,981,900,Administrative States 50 states The largest in area:Alaska The second:Texas The youngest:Alaska and Hawaii A federal district The District of Columbia Capital City:Washington,Three Basic areas The hig
4、hlands in the east The mountains in the west The vast plain region in between(Alaska and Hawaii are away from the continental U.S.),The Appalachian Mountainsin the west of Atlantic coastal plainCanada-Georgia and Alabamathe highest point:2000m above sea,The Atlantic Seacoast West to the Appalachians
5、,New England,Middle Atlantic States,Deep south,New England:lowland sandy beaches,swamps,lakes.infertile heavy forests,the northeastern corner of the U.S.spring and summer are pretty shortTemperature:exceed 400C in summer below-10 0C in winter.,New England,MaineNew HampshireVermontMassachusettsRhode
6、IslandConnecticut,Middle Atlantic States,New YorkNew JerseyPennsylvaniaMarylandDelawareWest Virginia,It is a flat and fertile region.It is the most densely populated region of the USA,and famous for its great cities and ports,its financial and foreign trade activities.,Deep south The coast plain is
7、very low and wide.The soil of this region varies greatly.The rivers,fertile plains,and mild temperatures of the south make it suitable for large-scale agriculture.,Deep South,South CarolinaGeorgiaTexasAlabamaMississippiLouisiana,The central part:The Mississippi River Basin large area of flatlands co
8、vers 2000 km.in width,The Mississippi River Basin,MidwestThe Mississippi River Great Plains(between the Mississippi River and the Rockies),The Midwest(The Middle West)the northeastern part of the Mississippi River Basin and lies in the general area of the Great Lakes.,OhioMichiganIndianaIllinoisWisc
9、onsinMissouriIowaMinnesota,east,west,Midwest,The Great PlainsWheat and corn are main crops and in the west sections,cattle raising is more important.,North and South DakotasNebraskaKansasOklahomaTexas,Great Plains,(six states),north,south,The Rockies west to the PacificRocky mountains:the backbone o
10、f the continent high enough to receive more rain than the surrounding plains and plateaus.,The Rockies West to the Pacific,MontanaWyomingColoradoIdahoNevadaWashingtonOregonCalifornia,The Rocky Mountains,Great plateau and the Great Basin,Fertile Valley,Yellowstone National ParkIt covers an area of ab
11、out 9000 sq.km.There are about 3,000 geysers and hot springs in the park.There are also other natural wonders.Established on March 1st,1872 and it is the first national park.,Death ValleyOn the western edge of the region 200 km.long,86 m.below the sea levelthe lowest and hottest place in North Ameri
12、ca.,The Central valley of California highly productive area basic field crops as sugar beets,beans,rice and cotton.,ClimateThe United States is mainly situated in the northern temperate zone.New England:relatively cold.Winters are long and hard.Middle Atlantic states region:generally pleasant,four d
13、efinite seasons.,Midwest：temperate summer:very hot,tornado appearing winter:extremely coldthe Great Plains:The climate varies greatly,little rainfall The northern part:extreme hot and cold are often experienced.Farther South:milder,The western slopescool,rainy and cloudyWashington states near the Pa
14、cific has the highest rainfall in the U.S.,Natural Resourcesa large deposit of Iron ore.The richer ores are exhausted,but large amounts of lower-grade materials remain and form the basis of thriving industry,Iron ores are also mined in Missouri,New York,Utah and Wyoming.large quantities of Coal depo
15、sits are widely distributed most of coal reserves are to be found in the Appalachians,the Central Plain and the Rockies.,Oil:most domestic production of oil and natural gas comes from offshore areas of Louisiana and Texas,and from onshore areas of Texas,Oklahoma,and California.Now the US reliance on
16、 foreign oil has remained consistently in the 40%range.Gas:import much natural gas every year.,Silver,gold and fresh waterOnce very rich in silver and gold:Today the largest open-pit copper-mining center in the U.S.is Bingham,Utah.Utah is also famous for its Great Salt Lake:2,435 sq.km,which is seve
17、ral times more saline than seawater.It contains about 4.4 billion tons of minerals.Large supplies of fresh waterPlenty of fertile soil and farmlands make up about 12%of arable lands in the world.30%of the US is forested.And of that amount more than 500 million acres are in commercial use.,RiversThe
18、Mississippi River（密西西比河）The Missouri River（密苏里河）The Yukon（育空河）The Rio Grande（格兰德河）The Columbia River（哥伦比亚河）The Colorado River（科罗拉多河）The Ohio River（俄亥俄河）The Hudson River（哈得孙河）,The Mississippi River（密西西比河）the most important river in the country;3,700km long;flows about 6,400km from its northwestern so
19、urce in the Rockies to the Gulf of Mexico named by the Indians,meaning“Father of Water”The Missouri River（密苏里河）4,090km long;the main tributary of the Mississippi;the longest river in the U.S.,The Yukon（育空河）In Alaska,about 3,000km long.The Rio Grande（格兰德河）3,200km long Form part of the U.S.-Mexico bor
20、derThe Columbia River（哥伦比亚河）Rises in Canada and continues in the U.S.for about 1,900km,The Colorado River（科罗拉多河）Begins in the Rocky Mountains and flows Southwest for 2,300kmThe Ohio River（俄亥俄河）a branch of Mississippi flows west from the Appalachians The Hudson River（哈得孙河）Flows through the state of N
21、ew York,the Great LakesLake Superior（苏必利尔湖）Lake Michigan（密歇根湖）Lake Huron（休伦湖）Lake Erie（伊利湖）Lake Ontario（安大略湖）0nly Lake Michigan is wholly in the U.S.；the other four are shared with CanadaThey cover an area of about 240,000 square km and are the largest group of freshwater lakes in the world.,Homewor
22、k1.Exercises of this chapter.2.Draw a map of the U.S.marking the following elements:the Appalachian Mountain,the Mississippi Basin,the Rocky Mountain,major rivers,the Great Lakes,the Great plains,the Midwest,New England,Middle Atlantic States,Deep South,Neighbors of the U.S.,Death Valley,major cities3.Preview Chapter 2,
