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福彩双色球开奖查询:2018年6月英语四级听力原文:试卷一听力篇章2

中华考试网   2018-06-21   【

2018年6月英语四级听力原文:试卷一听力篇章2

  Passage 2

  The United States has one of the best highway systems in the world. Interstate highways connect just about every large and mid-sized city in the country. Did you ever wonder why such a complete system of excellent roads exists? For an answer, you would have to go back to the early 1920s. In those years, just after World War I, the military wanted to build an American highway system for national defense. Such a system could, if necessary, move troops quickly from one area to another. It could also get people out of cities and danger of being bombed. So-called roads of national importance were designated, but they were mostly small country roads. In 1944, Congress passed a bill to upgrade the system but did not fund the plan right away. In the 1950s, the plan began to become a reality. Over 25 billion dollars was appropriated by Congress, and construction began on about 40 thousand miles of new roads. The idea was to connect the new system to existing express ways and freeways. And though the system was built mostly to make car travel easier, defense was not forgotten. For instance, highway overpasses have to be high enough to allow trailers carrying military missiles to pass under them. By 1974, the system was mostly completed. A few additional roads would come later. Quick and easy travel between all parts of the country was now possible.

  Q19: What does the speaker say about the American highway system?

  Q20: What was the original purpose of building a highway system?

  Q21: When was the interstate highway system mostly completed?

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