英语国家概况 第五啃挛 美国概况 The United States of America.pptVIP

An Introduction to English-Speaking Countries英语国家概括;Lesson 5 The United States of America;U.S.A in the World;Topographic Map of the U.S.A;Table of Comparisons;The United States is a varied land - of forests, deserts, mountains, high flat lands and fertile plains. The country lies mostly in the temperate zone but there is a very wide range of climate variations. The continental United States stretches 4,500 kilometers from the Atlantic Ocean on the east to the Pacific Ocean on the west. It borders Canada on the north and reaches south to Mexico and the Gulf of Mexico. Alaska is the largest in area of the 50 states; Texas is the second largest. Appalachian Mountains in the East, Rocky Mountains in the West. Mississippi River and Missouri River Five Lakes: Superior, Huron, Michigan, Erie and Ontario ;Population;Population Composition;Immigration ;The first settlers in American history came from England and the Netherlands, some running away from religious and political persecution, some coming as adventurers from the Old World (Europe) to seek a better life , some as indentured servants(与师傅签订师徒合同的学徒)who had to work for a fixed term for their masters to repay the cross-Atlantic fare and debts.;Three immigration waves ;The United States had a more or less open-door policy to immigrants from independence until the1960s. Ellis Island of New York was an important immigration reception spot in the 1890s and at the turn of the century. Even with later restrictions, immigration has continued at a high level. Immigration since 1980 has made up about 30% of the total growth in population. ;Population Movement;50 States ;Map of America;1: New England ;2: The Middle Atlantic States;3: The Midwest ;4: The South ;5: The American West;6: The Pacific Coast ;7: The New States ;History;The Foundation of the Nation the American Revolutionary War, fought from 1775 through 1781 On June 14, 1775, the Continental Congress, convening in Philadelphia, established a Continental Arm