提高聽力同時(shí)，你還可以了解到美國(guó)歷史上的一些重要事件。請(qǐng)感興趣的你一聽為快吧！

<注意>國(guó)家大寫
hints：Theodore Roosevelt;Progressivism;Woodrow Wilson;The Federal Reserve;The Federal Trade Commission
President Theodore Roosevelt (1901–1909) believed in Progressivism. He worked with congress to regulate businesses that had established monopolies. He also worked hard to protect the country's natural resources. Changes continued under the next presidents, especially Woodrow Wilson (1913–1921). The Federal Reserve banking system set interest rates and controlled the money supply. The Federal Trade Commission dealt with unfair business practices. New laws improved working conditions for sailors and railway workers. Farmers got better information and easier credit. Taxes on imported goods were lowered or eliminated.
西奧多羅斯?？偨y(tǒng)（1901年至1909年）堅(jiān)持進(jìn)步主義。他與國(guó)會(huì)合作，以規(guī)范建立了壟斷企業(yè)。他還努力來保護(hù)國(guó)家的自然資源。變化繼續(xù)在未來的總統(tǒng)，尤其是伍德羅威爾遜（1913年至1921年）。聯(lián)邦儲(chǔ)備銀行系統(tǒng)設(shè)定利率和控制貨幣供應(yīng)量。聯(lián)邦貿(mào)易委員會(huì)處理與不公平的商業(yè)慣例。新的法律提高水手和鐵路工人的工作條件。農(nóng)民得到了更好的信息和更容易的信貸。對(duì)進(jìn)口貨物稅降低或取消。