Choose a country to introduce 1. Asia 2. Europe 3. Africa 4. North America 5. South America 6. Oceania.

the United States is located in north America, with latitude and longitude: 38°N, 97°W, bordering the north Pacific and the north Atlantic, between Canada and Mexico. At present, there are 5 states in one * * *, and there is another colonial Puerto Rico, and other overseas territories such as Guam. The total territory area is the third largest in the world (less than Russia and Canada); The actual land area is the fourth largest (smaller than China). The third largest population (less than China and India) and the largest economic power in the world

Name

The United States of America. United: United, States: plural of States, America: America; Abbreviation: USA (or US)

The United States, also known as America in English (transliteration-Americana, later gradually translated into-America). In fact, America stands for America. Americans use it to address the whole United States. Americans often say, "God bless America" means God bless America, not God bless America. American originally meant Americans, including Canadians, Mexicans and Americans. Now it basically only represents Americans. In everyday language, the United states is also called "United States" or "The States". When shouting slogans or cheering, use USA. In addition, Uncle Sam is also used to address the United States, meaning Uncle Sam.

national flag

the American flag is the stars and stripes. It is a horizontal rectangle with a ratio of length to width of 19:1. The main body consists of 13 wide red and white stripes, 7 red stripes and 6 white stripes; The upper left corner of the flag is a blue rectangle with 5 white five-pointed stars in 9 rows. Red symbolizes strength and courage, white represents purity and innocence, and blue symbolizes vigilance, perseverance and justice. Thirteen broad stripes represent the 13 states that first launched the War of Independence and won, and 5 five-pointed stars represent the number of states in the United States of America. In 1818, the United States Congress passed a bill, and the number of red, white and wide stripes on the national flag was fixed at 13, and the number of five-pointed stars should be the same as the number of states in the United States. Every time a state is added, a star is added to the national flag, which is generally implemented on July 4 of the second year after NSW joins. So far, the national flag has increased to 5 stars, representing the 5 States in the United States. June 14th is the anniversary of the American flag.

national emblem of the United States

The main body of the national emblem of the United States is a bald eagle with a shield pattern on its chest, the national bird of the United States. The upper part of the shield is a blue horizontal rectangle, and the lower part is a red and white vertical bar, which means the same as the national flag. The crown above the eagle symbolizes the birth of a new independent country, the United States of America, among the sovereign countries in the world; There are 13 white five-pointed stars in the crown, representing the original 13 States of the United States. The eagle's two claws hold the olive branch and the arrow respectively, symbolizing peace and force. The yellow ribbon in the beak reads "e pluribus unum" in Latin, which means that the United States of America consists of many states and is a complete country.

national anthem

"The home of the brave". Once translated Song of the Stars and Stripes, the lyrics were written by an American lawyer named Francis Scott Key when he saw the Stars and Stripes flying high above the fortress after being bombarded by British troops through the smoke on the battlefield during the Anglo-American War. Music score is the famous masterpiece of Susa, the "King of March". In 1931, it was officially designated as the national anthem by the US Congress.

national flower

rose. It symbolizes beauty, fragrance, enthusiasm and love. In 1985, it was approved by the Senate as the national flower.

national stone

sapphire

national bird

bald eagle (vulture). The United States is the first country in the world to determine the national bird. On June 2, 1782, the US Congress passed a resolution to take the bald eagle unique to North America as the national bird of the United States and take this bird as the main body of the national emblem. The bald eagle is beautiful in appearance and fierce in temperament, which is characterized by two white heads, that is, a white head and a white tail. It represents bravery, strength and victory.

Motto

In God We Trust (English: We believe in God, 1956-present) (official motto)

E Pluribus Unum (Latin: e pluribus unum, 1776-present) (traditional motto)

The Constitution

was produced on September 17, 1787, 1789. (known in history as the 1787 Constitution).

Land

According to the US Central Intelligence Agency, from 1989 to 1996, the total area of the United States was 9,372,61 square kilometers; . In 1997, it was changed to 9,629,91 square kilometers; In 24, it was changed to 9,631,418 square kilometers; , changed to 9,631,42 square kilometers in 26 and 9,826,63 square kilometers in 27; . This change is mainly caused by the change of the statistical method of water area. According to the latest information on September 4, 28, the total area of the United States (including 5 states and Washington, D.C.) is 9,826,63 square kilometers, with land of 9,161,923 square kilometers and water of 664,77 square kilometers. Coastline length: 19,924 kilometers. The native land is 4,5 kilometers long from east to west and 2,7 kilometers wide from north to south.

Lowest point: Death Valley-86m

Highest point: McKinley Mountain, 6,198m

Controversy over size: The website of the US Central Intelligence Agency thinks that the total area of the United States is half that of Russia, 3/1th that of Africa and half that of South America, slightly larger than that of China and twice that of the European Union. According to this website, China has a total territory area of 9,596,96 square kilometers, including 9,326,41 square kilometers of land. Water area: 27,55 square kilometers, so if we only compare the land area, then China is bigger than the United States and the third largest in the world. If the water area is added, the territory of China is smaller than that of the United States, and China becomes the fourth largest in the world.

the capital

Washington D.C, with a population of 588,3 (27), covers an area of 177. square kilometers.

National dignitaries

The 44th President: Barack Hussein Obama Jr; Vice President: joseph robinette; Secretary of State: Hillary (female); Secretary of Defense: Gates;

Speaker of the House of Representatives: Pelosi.

political system

federalism, freedom and democracy, presidential system and separation of powers.

Population

The level of urbanization is high, and the urban population accounts for about 75%; Uniformly distributed; Dense in the east and sparse in the west; 5% of the population is distributed in the five great lakes along the coast; The population migrated to the south and west.

33,824,64 (July 28, 3rd in the world). Population growth rate: .885%

-14 years old: 2.1% (31,257,18 males/29,889,645 females);

15-64 years old: 67.1% (11,825,91 males/12,161,823 females);

over 65 years old: 12.7% (male 16,263,255/ female 22,426,914) (estimated in 28).

Average age: 36.7 years, male: 35.4 years；; Female: 38.1 year.

The average life expectancy is 78.14 years, including 75.29 years for men and 81.13 years for women. The population density is 31 people/km2 (144th in the world).

79.96% are white, 15.1% are Hispanic, 12.85% are black, 4.43% are Asian, .97% are Indian and Alaskan, and .18% are Hawaiian and other Pacific islanders (estimated by CIA in 28). There are about 2.43 million Chinese, accounting for .9%, and most of them have been naturalized in the United States (data from the 2 US Census). The total population of African Americans, Hispanics and Asians has reached 1.7 million (July 27).

language

English is 82.1%, Spanish is 1.7%, other European languages are 3.8%, Asian languages are 2.7%, and other .7% (according to the survey in 2) can't set the official language. English is the de facto national language. 82% of all Americans over 5 use English. Twenty-eight States have passed local laws to ensure the official status of English; Three states recognize other languages as parallel to English: French in Louisiana, Hawaiian in Hawaii and Spanish in New Mexico. Languages spoken by more than 1 million people include English (214.8 million), Spanish (29.7 million), Chinese (2.2 million), French (1.4 million), Tagalog (1.3 million), Vietnamese (1.1 million) and German (1.1 million). In addition to these major languages, there are 336 other languages spoken in the United States, of which 176 are native languages.

education level

definition: over 15 years old, can master American English skillfully. Total population: 99%; Male: 99%, female: 99% (estimated in 23).

Religion

The United States guarantees the right to religious freedom, and the government practices a system of separation of church and state, and does not support or oppose any religion. But religion is quite active in American politics. Most American presidents claim to be Protestants. Only a few presidents in the early days of the People's Republic of China were deists, and one was Catholic (Kennedy, the 35th president of the United States). 51.3% of the residents in China believe in Protestantism, 23.9% in Catholicism, 1.7% in Mormonism, 1.6% in other Christianity, 1.7% in Judaism, .7% in Buddhism, .6% in Muslims, 2.5% in other religions, and 4% in non-denominations (estimated in 27).

administrative divisions

the whole country is divided into 1 major regions, 5 states and one special zone (Washington, D.C.), with 342 counties or counties (county, The counties in Louisiana are parish)

regions: New England, Central Region, Mid-Atlantic Region, Southwest Region, Appalachian Region, Alpine Region, Southeast Region, Pacific Coast Region, Great Lakes Region and Alaska and Hawaii, Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming;

Federated territories: Puerto Rico's Free Association and Northern Mariana;

overseas territories (inhabited): American Samoa, Guam, midway, and the United States Virgin Islands;

Overseas territories (uninhabited): Baker Island, Howland Island, Jarvis Island, Johnston Island, Kingman Reef, Nafusa Island, Palmier Island and wake island.

the largest city

new york: the largest city and the largest commercial port in the United States, and one of the world's financial centers. The population is 8,274,5 (in 27, it ranked first in American cities and 13th in the world), covering an area of 1,214.4 square kilometers.

major cities

(top 2 in population order, 27)

New York, Los Angeles, Chicago, Houston, Phoenix, Philadelphia, San Antonio, San Diego, Dallas, San Jose, Detroit, Jacksonville, Indianapolis, San Francisco, Columbus, Austin, Memphis, Fort Worth, baltimore, Charlotte.

GDP (purchasing power parity)

13.543 trillion US dollars (ranked first in the world in 27). The per capita GDP is 43,444 USD (4th in the world).

gross domestic product (nominal)

13.794 trillion US dollars (in 27, it ranked first in the world). The per capita GDP is 43,594 US dollars (the 9th in the world).

Gini coefficient

.469(27).

human development index

.951 (high, 12th in the world in 25).

currency

United States Dollar (USD); Symbol: $

time zone

climate

The United States has almost all the climate types in the world (the land spans cold, warm and hot zones, and the land is in temperate zones). There are few serious droughts and floods in major agricultural areas, and it has mild temperatures that can get enough rainfall.

American economic system has the characteristics of both capitalism and mixed economy. In this system, enterprises and private institutions make major microeconomic decisions, and the government plays a less important role in domestic economic life; However, the sum of governments at all levels accounts for 36% of GDP; Among developed countries, the social welfare network in the United States