跟读练习: How America became a superpower - 通过视频学习英语口语
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The modern United States is the most powerful country in human history.
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With over 800 military bases and 37% of global military spending, the United States has become the leader of a vast interconnected global system that has helped usher in an era of unprecedented prosperity and low levels of conflict.
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To understand America’s position in the world, and why it’s so pivotal for world politics as we know it, you have to go back to the country’s founding — back to when America wasn’t a global power in any sense of the word.
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During the first 70 years of its existence, the United States expanded in both territory and influence in North America eventually reaching the Pacific Ocean in a wave of expansionism that resulted in the wholesale slaughter of the indigenous people who populated the continent.
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But early Americans were deeply divided as to whether the country should expand beyond the Pacific and Atlantic oceans.
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This became a major debate after the civil war, when some leaders, like post-war Secretary of State Seward, argued that America should push to become a global power.
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Seward succeeded in pushing a plan to purchase Alaska from Russia, but his attempts to buy Greenland and Iceland, as well as annex territory in the Caribbean, were all blocked by Congress.
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That’s because some Americans, including many on Capitol Hill, had a strong anti-imperialist bent.
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These people worried about America getting more involved in global politics, as well as having to integrate populations from “inferior” races.
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And this opposition applied major checks on the imperialist urge to expand.
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But something was happening in the late 1800s that would change the debate about American expansionism.
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The industrial revolution produced explosive economic growth, and the bigger US economy required a more centralized state and bureaucracy to manage the growing economy.
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Power became concentrated in the federal government, making it easier for expansionist presidents, like William Mckinley, to unilaterally push United States influence abroad.
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The key turning point came in 1898, when President McKinley dragged the country into war with Spain over the island of Cuba despite intense opposition.
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The rising US easily defeated the moribund Spanish empire, acquiring Puerto Rico, Guam, and the Philippines in the process (1898).
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Over the next two years, the US would annex the Kingdom of Hawaii (1898), Wake Island (1899), and American Samoa (1900).
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A few years later the US took control of the Panama Canal Zone (1903) and sent troops to occupy the Dominican Republic (1916), it also purchased the American Virgin Islands (1917).
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This period of rapid acquisition of far flung territories put the US on the map as a truly global power.
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During this time, America also began using its influence to protect its growing commercial and military interests abroad, installing pro-American regimes in places like Nicaragua and playing a major role in international diplomacy regarding the Western presence in China.
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World War I showed how just how much America’s influence had grown.
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Not only was American intervention a decisive factor in the war's end But President Wilson attended the Paris Peace Conference which ended the war and attempted to set the terms of the peace.
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He spearheaded America’s most ambitious foreign policy initiative yet, an international organization, called the League of Nations, designed to promote peace and cooperation globally.
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The League, a wholesale effort to remake global politics, showed just how ambitious American foreign policy had become.
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Yet isolationism was still a major force in the United States.
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Yet isolationism was still a major force in the United States.
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Congress blocked the United States from joining the League of Nations, dooming Wilson’s project.
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During the Great Depression and the rise of Hitler, the US was was much more focused on its own region than on European affairs Ultimately, though, America’s ever-growing entanglements abroad made it impossible for it to stay out of global affairs entirely.
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In East Asia, the growing Japanese empire posed a the direct threat to American possessions and troops bringing the United States and Japan into conflict.
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This culminated in the Pearl Harbor attack bringing the United States into World War II.
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World War Two would transform America’s global presence forever.
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The United States was the only major power to avoid economic ruin during the war, and it was the sole country equipped with atomic weapons.
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As such, it was in unique position to set the terms of the peace — and, with the aim of preventing another war in mind, it took advantage.
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The most famous example of this is the creation of the United Nations.
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The UN charter set up a system of international law prohibiting wars of conquest, like the ones waged by the Nazis and the Japanese.
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It also served as a forum in which the international community could weigh in on disputes, and help resolve them.
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This way, the Americans hoped, great powers could resolve their differences through compromise and law rather than war.
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But while the UN is the most famous of the post-war institutions, it isn’t the only one.
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730 delegates from all 44 Allied nations came together in a small vacation haven in New Hampshire. Their goal? To establish a global financial system that would prevent another Great Depression and World War.
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The resulting agreement, called the Bretton Woods Agreement ultimately became backbone of the global financial system.
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Resulting in the World Bank and the International Monetary Fund.
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By creating these institutions the United States committed itself to being deeply involved in the world’s problems.
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The issue, though, is that the world’s second-largest power — The Soviet Union — saw things differently.
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World War II had made allies out of the democratic West and communist East in the fight against Hitler, but that couldn’t last.
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The United States saw Soviet expansion in Eastern Europe and elsewhere as a direct threat to its vision of a free-trading world.
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"To a substantial degree, in one form or another" Socialism has spread the shadow of human regimentation Over most of the nations of the earth And... the shadow is encroaching on our own liberty.
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Fearful of Soviet intentions towards Western Europe, the US and other European nations created the North Atlantic Treaty Organization, a military alliance meant to stop Russia from invading other countries in Europe.
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Globally, the US committed to a strategy called “containment” — so called because it was aimed at containing the spread of Communism everywhere on the globe.
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This new global struggle meant that the US had to exert influence everywhere, all the time.
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Instead of disbanding the massive military machine created for World War II, its wheels mostly kept turning.
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This had two main results: first, the US was pulled into unlikely alliances with countries like Saudi Arabia, Israel, and South Korea, seeing each of them as bulwarks against communist influence in their region.
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Secondly, the US began intervening, often secretly, in dozens of countries to contain Soviet influence.
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Sometimes this meant propping up sympathetic dictators like in Iran, other times supplying rebels with arms and money like in Afghanistan in 1979 and Nicaragua in 1985.
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Over the course of the Cold War, the US intervened in hundreds of disputes around the globe, ending up with a complicated set of alliances, tensions, and relationships in basically every corner of the earth.
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After the Berlin wall fell, the US could have withdrawn from this system, severing ties with its allies and drawing down the size of its military.
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And while the US did military spending, much of the military infrastructure and alliances from the Cold War war remained.
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Presidents George H.W. Bush and Bill Clinton decided that it was in both America and the world’s interests for the United States, now the sole superpower on earth, to continue actively managing global affairs.
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" We should be and we must be Peacemakers" NATO, created solely as a tool for countering the Soviets, stayed together and even expanded, a way of keeping European nations united in the absence of the Soviet threat.
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Washington’s support for countries like Israel and Japan stayed intact, ostensibly as a means of preventing war in those regions.
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The global system of alliances and institutions created to keep the peace during the Cold War became permanent — as did the American military and political commitments needed to keep them running .
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This system remains in operation today, and no leading American politician since the Cold War has seriously called for dismantling them — except, perhaps for Donald Trump.
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Trump has said contradictory things about these commitments.
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But he’s consistently argued that American allies are not paying America enough for its protection, and questioned the value of free trade.
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That calls NATO and even the World Trade Organization into question.
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At some point, we have to say, you know what, we're better off if Japan protects itself against this maniac in North Korea.
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We're better off if South Korea is going to start to protect itself -- and Saudi Arabia?-- Saudi Arabia? Absolutely.
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This is a sharp divergence from the consensus that has dominated US foreign policy since 1945, and something closer to the isolationism that came before it.
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So will President Trump act on some of candidate Trump's ideas, and reverse decades worth of institution building and alliances?
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We'll find out, soon enough.
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背景与情境
这段视频讲述了美国成为超级大国的历程，内容涵盖历史事件、政治决策等，语言正式且信息密度高，适合用来练习英语听力和口语表达。视频中既有长句复杂结构，也有历史专有名词，能帮助学习者熟悉学术性英语的节奏，同时积累相关词汇。
日常交流高频5短语
- usher in：意为“开创（新时代）”，如视频中“usher in an era of unprecedented prosperity”（开创前所未有的繁荣时代）。日常可用于描述新技术或事件带来的变化，比如“5G technology will usher in a new age of connectivity”。
- pivotal：表示“关键的”，视频中提到“pivotal for world politics”（对世界政治至关重要）。口语中可替换“important”，如“Her role was pivotal in the project's success”。
- drag into：指“被迫卷入”，如“dragged the country into war”（将国家拖入战争）。日常表达中可用“ He dragged me into his argument with the boss”。
- doom：作动词时意为“使失败”，视频中“dooming Wilson's project”（导致威尔逊的计划失败）。口语中可说“Poor planning doomed the business from the start”。
- bulwark against：表示“抵御…的屏障”，如“bulwarks against communist influence”（抵御共产主义影响的屏障）。日常可用于“Family is a bulwark against loneliness”。
Shadowing练习分步指南
想要用好这段视频进行shadow speech练习，可按以下步骤操作： 1. **先听后跟**：第一遍完整听视频，注意整体节奏；第二遍逐句暂停，模仿发音和语调，尤其关注“pivotal”“doom”等单词的重音。这对提高英语发音很有帮助。 2. **关注长句结构**：视频中长句较多，如“the United States was the only major power to avoid economic ruin during the war”，练习时拆分句子成分，模仿连读和停顿，提升雅思口语练习中的流畅度。 3. **重复强化**：选择关键段落（如二战后美国建立国际组织部分），进行3-5遍shadowing，重点抓逻辑重音。坚持一周，你会发现shadow speaks的能力明显提升。 4. **录音对比**：用手机录下自己的练习，与原视频对比，找出语调、语速的差异，针对性改进。 通过这样的练习，不仅能掌握历史词汇，还能提升口语表达的准确性和流畅度，让shadow speech成为你的日常学习利器。视频中的语法
说话人最常用的结构，并附上视频中的原话：
| 结构 | 视频中的用法 |
|---|---|
| 现在完成时 have/has + 过去分词 — 过去发生但与现在仍有关联的事 | has become · has spread · has said |
| 被动语态 be + 过去分词 — 强调发生了什么，而不是谁做的 | was aimed · was pulled |
什么是跟读法？
跟读法 (Shadowing) 是一种有科学依据的语言学习技巧，最初开发用于专业口译员的培训，并由多语言者Alexander Arguelles博士普及。这个方法简单而强大：您在听英语母语原声的同时立即大声重复——就像是一个延迟1-2秒紧跟说话者的影子。与被动听力或语法练习不同，跟读法强迫您的大脑和口腔肌肉同时处理并模仿真实的讲话模式。研究表明它能显着提高发音准确性，语调，节奏，连读，听力理解和口语流利度——使其成为雅思口语备考和真实英语交流最有效的方法之一。