提高听力同时，你还可以了解到美国历史上的一些重要事件。请感兴趣的你一听为快吧！
<注意>国家名大写
hints：
Pearl Harbor
Hawaii
Many Americans were uneasy with big government, but they also wanted the government to help ordinary people. These programs helped, but they didn't solve the economic problems. The next world war would do that. The United States remained neutral while Germany, Italy and Japan attacked other countries. Although many people wished to stay out of these conflicts, congress voted to draft soldiers and began to strengthen the military. As Japan conquered territories in China and elsewhere in Asia, it threatened to seize raw materials used by Western industries. In response, the United States refused to sell oil to Japan. Japan received 80% of its oil from the United States. When the United States demanded that Japan withdraw from its conquered territories, Japan refused. On December 7, 1941, Japan attacked the American fleet at Pearl Harbor, Hawaii. The United States declared war on Japan. Because Germany and Italy were allies of Japan, they declared war on America.
许多美国人大政府感到不安，但他们也希望政府能够帮助普通百姓。这些方案帮助，但他们并没有解决经济问题。未来的世界战争将做到这一点。美国保持中立而德国，意大利，日本袭击其他国家。虽然很多人希望这些冲突，国会投票通过的草案士兵并开始加强军事。由于日本在中国和亚洲其他国家的领土征服，它扬言要夺取西方工业使用的原材料。作为回应，美国拒绝向日本出售石油。日本获得来自美国80 ％的石油。当美国要求日本撤出其占领的领土，日本拒绝。在1941年12月7日，日本袭击美国舰队在珍珠港，夏威夷。美国对日宣战。因为由于德国和意大利是日本的盟友，他们宣布对美国的战争。