上海 2011 届高考英语阅读训练加强版Reading Comprehension(1)Questions 1-11 The work of the railroad pioneers in America became the basis for a great surge of railroad building halfway through the nineteenth century that linked the nation together as never before
Railroads eventually became the nation’s number one transportation system, and remained so until the construction of the interstate highway system halfway through the twentieth century
They were of crucial importance in stimulating economic expansion, but their influence reached beyond the economy and was pervasive in American society at large
By 1804, English as well as American inventors had experimented with steam engines for moving land vehicles
In 1920, John Stevens ran a locomotive and cars around in a circular track on his New Jersey es