四六级 | 大学英语四级考试听力练习：短文（2）
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四六级听力
Questions 19 to 21 are based on the passage you have just heard.
19.
A) Its construction started before World War I.
B) Its construction cost more than $ 40 billion.
C) It is efficiently used for transport.
D) It is one of the best in the world.
20.
A) To improve transportation in the countryside.
B) To move troops quickly from place to place.
C) To enable people to travel at a higher speed.
D) To speed up the transportation of goods.
21.
A) In the 1970s.
B) In the 1960s.
C) In the 1950s.
D) In the 1940s.
文本、参考答案
Passage Two
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 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 40,000 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?
答案：
19. D) It is one of the best in the world.
20. B) To move troops quickly from place to place.
21. A) In the 1970s.