西进运动英语(精美版).pptVIP

乐子吴吞 制作 Territory Expansion ----By Peng Yuanyuan Introduction Process Concrete events Conclusion Introduction In 1783, the Britain recognized the independence of the United States and America acquired 13 states as well as the east coast of the Atlantic. At that time the territory of America had grown to 2,300,000 ㎞2. It was roughly equivalent to 30% of the current land of America. Process In 1789, the US federal government had been established and soon led the country to the way of territory expansion. The most commonly used tactics: purchase, occupation, invasion Territory Expansion of America美国领土扩张示意图 最初的13个州 1783年的美国领土 Louisiana路易斯安那 （1803年购自法国） 佛罗里达Florida （1810－1819年从西班牙处占领或购买） 1818年 取自英国 得克萨斯Texas （1845年吞并自墨西哥） 俄勒冈Oregon （1846年属美） 新墨西哥New Mexico （1848年夺自墨西哥） 加利福尼亚California （1848年夺自墨西哥） 1853年 购自墨西哥 1867年Alaska 购自俄国 夏威夷Hawaii （1898年吞并） Concrete Events 1 2 cause result Louisiana Purchase cause France had signed a secret treaty with Spain. The treaty gave France the authority to control a large area in North America ---- the Louisiana Territory. Napoleon Bonaparte ruled the France at that time. Jefferson felt the French presence was a threat to the peace of the United States, In 1802, he decided to try to buy parts of Louisiana. cause result Louisiana Purchase result ?? Napoleon needed money for a war with Britain, so he decided to sell Louisiana to America. In 1803, surprisingly, the agreement was reached. They agreed on a price of eighty million francs for all the land (about 2,600,000 square kilometers) The land cost less than $5 per square kilometer. The territory doubled cause business Alaska cause In 1856, Russia was badly hurt after The Crimea war , so Tsar Alexander Ⅱ（沙皇亚力山大二世） decided to sell Alaska to America. evaluation cause business business evaluation The United States bought Alaska from Russia for about $7.2 million in 1867. William Henry Seward, who was Secretary of State at the time, signed the treaty with Russia on March 30, 1867. Many