英美国家概况之美国

• Niagara Falls
The Great Lakes
The Great Lakes
Niagara Falls 尼亚加拉瀑布
Six geographical regions
New england
The west
The mid-west Midatlantic states The south
• The largest and smallest states in the US
Alaska is the largest in area &Rhode Island the smallest.
on the mainland Texas is the largest.
Three Geographic Divisions
of beautiful forests and streams
natural features--central valley, high mountains, and hot dry deserts. notable cities San Francisco Los Angeles San Diego 14 percent of American gross domestic product predominant agriculture yielding high-tech industry centre
American Southern Area
The West Region
California the most populous of all the states
"Silicon Valley" area near San Jose
Oregon--wealth California
strit Lakes • Lake Superior (largest fresh water lake in the world) • Lake Michigan (the only entirely in the U.S.) • Lake Huron, Lake Eire and Lake Ontario • ( located between Canada • and the United States )
Hawaii
• eight major islands • about 2575 kilometres long southeast to northwest • mild temperature • chief products—cane sugar, pineapple, and flowers and dairy products. • coffee beans, bananas, and nuts. • tourist business—largest source of income.
• top-ranking universities – Harvard – Yale – Massachusetts Institute of Technology (MIT)
New england
The South Region • including 13 states
• with plentiful rainfall and a mild to warm climate • favorable climate for agriculture • fast growing industry and population in recent years • great size with few large cities – – – – – New Orleans Miami Memphis Atlanta Birmingham
climate
• Mainly temperate with some mild subtropical zones with only the southern Florida and Hawaii being tropical. • 50 centimeter rainfall line
– in the east—comparatively more rain, so easy agriculture; – in the west—much less rain (less than 50 cm. a year) with the exception of the coastal areas along the Pacific.
Oregon & California
Alaska
• • • • northwestern part of America Alaska--glaciers, waterfalls and lakes Native population
– Eskimos--half of all Alaska Natives – Indians – Aleuts
• main agriculture output—seafood • industrial outputs—crude petroleum, natural gas, precious metals, seafood processing, timber, and tourism, etc.
Alaska
Age Height
The Rocky Mountains
• The Rocky mountains are regarded as the backbone of the North American continent. • It is also known as the Continental Divide (大陆分水岭), because it separates the major river systems of the United States.
drained by the Mississippi and its tributaries
five great lakes and Niagara Falls
Rivers in U.S.A.
The longest river (over 6000 kilometers
Mississippi River Father of all Waters
The United States of America
Contents
Geography
1.Geographical feature 2.Climate
3.Major cities
Geography

I. Geographical Features

1. full name of America United States of America
Major Cities
New York—commercial
and financial center of the United States Washington D.C.—seat of the federal government Los Angles—second largest city Chicago—the windy city Seattle; Philadelphia; San Francisco; etc.
New York
Situated on three islands—Manhattan Island, Long Island and Staten Island at the mouth of Hudson River. Five boroughs—Manhattan, Brooklyn, Bronx, Richmond and Queens. the headquarter of the United Nations
Mountains in U. S. A.
The Eastern Part
• The eastern part—the highlands formed by the Appalachian Range (阿巴拉挈亚山脉).
one sixth of the territory
relatively low, with an average altitude of 800 meters above sea level

2. Geographical location of the US lies in central North America with Canada to its north, Mexico and the Gulf of Mexico to its south, the Atlantic Ocean to its east and the Pacific Ocean to its west.
The southwest
The New England Region
• including six states in the northeastern corner. • long history—the Europeans’ first settlement • featured with mountains, valleys and rivers, and cities and towns with historic sites
The Western Part
• High plateaus (高原) and mountains—extending from Canada through the western part of the United States to Mexico and further south. – One third of the country’s territory – Rocky mountains
Central part
Geographic Divisions
Eastern part
Western part
• The Eastern Part: The Appalachian Range northeast→ southwest • The Western Part: The Rocky Mountains The backbone of the North American Continent
States
• 50 states & • the Distinct of Columbia (Washington D.C.) • The 2 newest states: Alaska and Hawaii Alaska borders on northwestern Canada
Hawaii lies in the central Pacific
the Continental Divide
northwest →southeast
• The Great Central Plain
Great Lakes the Gulf of Mexico
Rocky Mountains 落基山脉
Appalachian Mountains 阿巴拉契亚山脉
Appalachian Mountains VS Rocky Mountains
Appalachian Mountains
Direction
Rocky Mountains
From the northeast to southwest Older Lower (2037 m)
From the northwest to southeast Younger Higher (4500 m)
The Great Central Plain • Between the Appalachians in the east and the Rocky Mountains in the west.
half of America’s landmass on the continent stretch from the Great Lakes in the north to the Gulf of Mexico in the south