求有关美国国家历史或成长史的英语作文,适合作大学英语演讲用,要求3~估计500字以上吧,

求有关美国国家历史或成长史的英语作文,适合作大学英语演讲用,要求3~估计500字以上吧,
有的话请上传一下,急用,\(^o^)/~

The full name of the United States of America USA (English: United States of America), was a British colony, all sorts of factors due to rise gradually and become a powerful nation.
北美洲原始居民为印第安人.16-18世纪,正在进行资本原始积累的西欧各国相继入侵北美洲.到了十八世纪中期,在北美大西洋沿岸建立了十三块殖民地,殖民地的经济,文化,政治相对成熟.[1]但是殖民地与英国之间产生了裂痕,英国继续对北美地区采取高压政策,引起了北美地区居民强烈不满.从1776年到1783年,北美十三州在华盛顿领导下取得了独立战争的胜利.[2]美国正式诞生,先后制定了一系列民主政治的法令.逐步成为成为一个完全独立的民族主权国家.[3]美国独立后积极进行领土扩展,美国领土逐渐由大西洋沿岸扩张到太平洋沿岸.经济发生了显著变化,北部、南部经济沿着不同方向发展.[4]南北矛盾日益加重. 1861年4月至1865年4月,美国南方与北方之间进行的战争,又称美国内战.最终是北方领导的资产阶级获胜统一全国统一.[5]1865年开始了重建时期,逐步废除奴隶制,1877年,南部进行民主重建,制订了民主的进步法令,标志着民主重建的结束.[6]后来美国完成了工业革命,经济实力大增,两次世界大战奠定了美国在资本主义世界中霸主的地位.冷战开始后和苏联平分天下.[7]冷战结束后,美国成为世界上唯一的超级大国.但是二十世纪八十年代年美国经济情况仍较平稳.[7]进入90年代,美国计算机产业发展迅速,并带动全球的高科技信息产业,开拓了新一代的产业革命.
The original inhabitants of North America for the indians. The 16-18 century, the Western European countries of the primitive accumulation of capital are successively invaded North america. By the middle of the eighteenth Century, the Atlantic coast in North America established thirteen colonies, colonial economy, culture, politics is relatively mature. [1] but between the colonies and the British have cracks, the British continued to take high handed policy to North America, caused strong resentment among the residents of North America area. From 1776 to 1783, thirteen states of North America achieved the victory of the war of independence under the leadership in washington. [2] American formally birth, has formulated a series of democratic politics and law. Gradually become an independent sovereign nation. [3] American independent active territorial expansion, American territory gradually from the Atlantic coast to the Pacific coast of expansion. Changes in economy, the economic development of North and south, along different directions. [4] South North contradiction is increasingly aggravating. 1861 April to 1865 April, between North and South USA war, also known as American civil war. The final is the North led the bourgeois win unified national unity. [5]1865 began a period of reconstruction, the abolition of slavery, gradually in 1877, Southern Democratic reconstruction, made the progress of Democracy Act, marking the end of democratic reconstruction. [6] later American completed the industrial revolution, the economic strength increases, the two world war laid the USA hegemony in the capitalist world position. The start of the cold war and the Soviet Union shared world. [7] after the end of the cold war, America become the only superpower in the world. But in twentieth Century eighty years USA economic situation remained stable. [7] enter 90 age, the development of USA computer industry, high-tech information industry and lead the global, open up a new generation of industrial revolution.