英美概况之美国概况

6. 50 cm Rain-fall Line
V. Natural Resources
1. Rich in deposits, forestry, water power 2. First in: coal, natural gas, aluminum,
zinc, silver, molybdenum, uranium, zirconium 3. Large reserves: iron ore, phosphorus, copper, gold, Sylvite, sulfur 4. Short of: manganese, chromium, nickel, tin, cobalt, stibium, diamond, Leabharlann Baiduica 5. ¼ of the territory is covered with forests. 6. Rich water power resources
o say, does that star-spangled banner yet wave o'er the land of the free and the home of the brave? on the shore dimly seen thro' the mists of the deep, where the foe's haughty host in dread silence reposes, what is that which the breeze, o'er the towering steep,
on the south.
C. With Atlantic Ocean on the east, Pacific Ocean on the west
D. Total area: 9372614
II. Three Geographical Divisions
1. The eastern part A. The highlands formed by the Appalachian
B. Potomac River, Delaware River, St. Lawrence River which serves as an international river forming part of the boundary between U.S.A. and Canada.
3. The system of the pacific: two major rivers
C. Great Plains: western part D. Central lowlands: eastern part
most important agricultural area E. The Gulf Plain: low lands
III. The Three Major River Systems
The End
The colors of the flag are symbolic as well: red symbolizes Hardness and Valor; white symbolizes Purity and Innocence and blue represents Vigilance, Perseverance and Justice.
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❖ In 1782, US Congress selected the bald eagle as the emblem of the newly formed United States, because it symbolizes courage and might, and because it is indigenous only to the United States and to Canada.
D. The Constitution was written in 1779.
1787
9. Location
A. in the central part of North America.
B. It is bounded by Canada on the north, and Mexico and the Gulf of Mexico
VI. Territory
1. 200 years ago, 13 states along the Atlantic in a narrow strip
2. 1783, Treaty of Paris, area west to the Mississippi River
3. 1803, purchased Louisiana from Napoleon 4. 1819, got Florida from Spain 5. 1845, got Texas from Mexico 6. 1846, vast area from Mexico 7. 1867, purchased Alaska, the largest state 8. 1889, the Hawaiian Islands
First chain
Columbia Plateaus
valley
The great basin
Second chain
Colorado plateau
3. The great central plain A. landmass between the Rockies and the
Appalachians, ½ of America B. From the Great Lakes to the Gulf of Mexico
A. the Columbia River from Canada into Pacific
B. the Colorado River: into Gulf of California
C. They are rich in potential water power.
1 4
6
4. The five Great Lakes
inland navigation and irrigation system
Mississippi River
2. The system of the Atlantic: no long rivers
A. the Hudson River, linked by canals with the five Great Lakes, a main artery for inland waterway traffic
IV. Climate
1. On the whole:
A. Varies from coast to coast
B. Temperature from -20 to 25
C. Continental or mild subtropical
2. South & southwest: warmer, moist air
❖ The national seal depicts the bald eagle with its wings spread, with one claw clutching an olive branch, and the other claw grasping arrows.
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oh, say, can you see, by the dawn's early light, what so proudly we hail'd at the twilight's last gleaming? whose broad stripes and bright stars, thro' the perilous fight, o'er the ramparts we watch'd, were so gallantly streaming? and the rockets' red glare, the bombs bursting in air, gave proof thro' the night that our flag was still there.
Range, relatively low. B. From north Maine to central Alabama, 1/6 C. consisting of the Piedmont Plateau,
Appalachian Plateau and Appalachian Range
Fall Line
8. Correct the following sentences.
Alaska A. New York is the largest state in the US.
B. Most state names are from English. Native American languages
C. Atlanta is known as the “Big Apple”. New York
1. The system of the gulf: the Mississippi River:
A. the longest ,the most important river B. 6262 kilometers long from Great Lakes to the
Gulf of Mexico C. “father of waters” or “old man river” D. its tributaries form an important
Lake Huron
Lake Erie
B. Great Salt Lake (largest inland salt lake in North America)
C. Niagara Falls: located on the U.S.A. Canadian boundary between Lake Erie and Lake Ontario
3. western: days are hot and nights are cool, dry, little rain
4. northeast: hot in summer, cold in winter, much rain and snow
5. Central plain: hot in summer, cold in winter, much snow
thirteen horizontal stripes, seven red alternating with 6 white
The stripes represent the original 13 colonies, and the 50 stars represent the 50 states of the Union.
Part One Geography
Chapter I
A General Introduction to Physical Geography
I. Basic Information about America
1. Official Name: The United States of America
2. National flag
3. National emblem
4. The capital: Washington D.C.
5. The first president: George Washington
6. The 44th president: George W. Bush
7. National song: the star-spangled banner
A. Lying between the boundary of Canada and the United States
Lake Michigan (wholly within the United States) Lake Superior (the largest freshwater lake in the world)
The Appalachian Range
2. The western part
A. High plateaus and mountains by the Cordillera Range
B. From Canada to Mexico
C. Composed of the Coast Range, the Cascades and the Rocky Mountains