History of American Expansion 美国扩张历史英语教学PPT课件.pptx

History of American Expansion;Introduction;The?first?strategic?expansionTime:?the?first?half?of?the?18th?Century?to?the?first?half?of?19th?Centurythe?United?States?took?advantage?of?the?opportunity that old?continent?of?Europe broke out?the?revolutionary?movement?and?the?Napoleon?war which led to internal?strife?to?expand.美国的第一次战略扩张是?18世纪末至?19世纪上半叶，美国趁欧洲旧大陆先后爆发革命运动和拿破仑战争、内部纷争不已的机会，进行对外扩张。;In December 2nd, 1823, President Monroe described the Declaration on the principles of American foreign policy to Congress in the state of the union, proposed the Monroe doctrine. Its main content is: the declaration of any European powers are not interference in the south, North American affairs, or which is the unfriendly performance to the United States. 1823年12月2日，美国总统门罗在致国会咨文中阐述美国对外政策原则的宣言，提出了“门罗主义”。其主要内容为：宣布任何欧洲强国都不得干涉南、北美洲的事务，否则就是对美国不友好的表现。; Monroe claimed that the United States would not recognize any non-American forces to transfer to another non-American power, if this happened, the United States would consult with other American Republics and then take appropriate action. ;After the “Monroe doctrine” was put forward, the United States fully developed in the Western Hemisphere so that the United States expanded into a country across the North American continent and made the entire South America be“backyard”of the United States. Most of the territory of the United States was captured during this period.;In the early days, Britain imposed trade restrictions on the United States, in an attempt to prevent the U.S. Economy development by economic colonization.Due to excessive dependence on plantation economy,Americas economy failed to transform completely, protectionism in trade failed to implement .Therefore,the United States still in the position of the backward agricultural country, and the economy was difficult to develop. But in the first half of the nineteenth century,The United States entered the era of industrialization, with the development of the indus