Passage 2 美国高速公路发展历史
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 u ever wonder why such a complete system of excellent roads exists? For an answer, u would have to go back to the early 1920s。 In those years just after World War 1, 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 in 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 40000 miles of new roads。 The idea was to connect the new system to existing expressways and freeways。 And though the system was built mostly to make car travel easier, defense was not forgotten。 For instance, highway overpasses had to be high enough to allow trailers carrying military missiles to pass under them。 By 1974,this system was mostly completed a few additional roads would come later。 Quick and easy travel between all parts of the country was now possible。
Questions 19 to 21 are based on the passage you have just heard。
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。
美国拥有世界上最好的公路系统之一。州际高速公路连接全国所有大中城市。你有没有想过为什么这样一个完善的道路系统存在?作为答案,你将不得不回到20年代初。在第一次世界大战后的那些年里,军方想要建立一个美国的国防高速公路系统,这样一个系统可以在必要时迅速将部队从一个地区搬到另一个地区。它也可以让人们离开有被炸的危险的城市,所谓的具有国家重要性的道路被指定,但它们大多是小乡村道路。 1944年国会通过了一项法案来升级该系统,但没有立即为该计划提供资金。在20世纪50年代,该计划开始成为现实。国会拨款超过250亿美元,新建道路约40000英里。这个想法是将新系统连接到现有的高速公路和高速公路上。虽然该系统的建造主要是为了让汽车出行更容易,但防御措施并没有被遗忘。例如,高速公路天桥必须足够高,以允许携带军用导弹的拖车经过它们。到1974年,这个系统基本完成了,稍后会有一些额外的道路。现在全国各地之间快速而轻松的旅行已成为可能。
Q19。 演讲者对美国高速公路系统有何评论?
Q20。 建立公路系统的最初目的是什么?
Q21。 州际公路系统何时大部分完工?
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