By the end of the century there was an immense network of paved roads ,residential streets,expressways,and freeways built to support millions of vehicles. The high way system was officially renamed for Eisenhower to honor his vison and leadership.The year construction began he said:Together,the united forces of our communication and transportation systems are dynamic elements in the very name we bear -United States.Without them ,we would be a mere alliance of many sepaeate parts.

　　1. National standards for paved roads were in place by 1921.

　　2.General Eisenhower felt that the broad German motorways made more sense than the two lane highways of America.

　　3. It was in the 1950s that the American government finally took action to build a national high way system.

　　4. Many of the problems presented by the countrys geographical features found solutions in I novative engieering projects.

　　5. In spite of safety considerations, the death rate on interstate highways is still higher than that of other American roads.

　　6. The interstate highway system provids access between major military installations in America.

　　7. Service stations, motels and restaurants promoted the development of the interstate higway system.

　　8. The greatest benefit brought about by the interstate system was __________.

　　9. Trucks using the interstate highways deliver more than ________________.

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