提高听力同时，还可以了解到美国历史上的一些重要事件。
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The United States of America has been a democracy for more than 200 years. Issues that were important in its early years remain so today: big government versus small government, individual rights versus group rights, free markets versus controlled trade, and connection with the world versus focusing on internal affairs. The U.S. tries to be a fair and just society, and much of the time it succeeds. Through compromise and change, the country has grown, prospered, and made progress toward its ideals.
美国成为民主国家已经有200多年。在早些年的一些重要问题如今一直存在：大政府对小政府，个人权利对集体权利，自由市场对受控制贸易，以及联系世界对集中内部事务。美国努力尝试成为公平正义的社会，它的成功需要很多的时间。通过妥协和改变，这个国家已经成长，繁荣，以及观念上取得很大的进步。