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  3. What accounts for the great outburst of major inventions in early America-breakthroughs such as the telegraph, the steamboat and

What accounts for the great outburst of major inventions in early America-breakthroughs such as the telegraph, the steamboat and

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问题     What accounts for the great outburst of major inventions in early America-breakthroughs such as the telegraph, the steamboat and the weaving machine?
    Among the many shaping factors, I would single out the country’s excellent elementary schools; a labor force that welcomed the new technology; the practice of giving premiums to inventors; and above all the American genius for nonverbal, "spatial" thinking about things technological.
    Why mention the elementary schools? Because thanks to these schools our early mechanics, especially in the New England and Middle Atlantic states, were generally literate and at home in arithmetic and in some aspects of geometry and trigonometry.
    Acute foreign observers related American adaptiveness and inventiveness to this educational advantage.As a member of a British commission visiting here in 1853 reported, "With a mind prepared by thorough school discipline, the American boy develops rapidly into the skilled workman."
    A further stimulus to invention came from the "premium" system, which preceded our patent system and for years ran parallel with it.This approach, originated abroad, offered inventors medals, cash prizes and other incentives.
    In the United States, multitudes of premiums for new devices were awarded at country fairs and at the industrial fairs in major cities.Americans flocked to these fairs to admire the new machines and thus to renew their faith in the beneficence of technological advance.
    Given this optimistic approach to technological innovation, the American worker took readily to that special kind of nonverbal thinking required in mechanical technology.As Eugene Ferguson has pointed out, "A technologist thinks about objects that cannot be reduced to unambiguous verbal descriptions; they are dealt with in his mind by a visual, nonverbal process...The designer and the inventor...are able to assemble and manipulate in their minds devices that as yet do not exist."
    This nonverbal "spatial" thinking can be just as creative as painting and writing.Robert Fulton once wrote, "The mechanic should sit down among levers, screws, wedges, wheels, etc., like a poet among the letters of the alphabet, considering them as an exhibition of his thoughts, in which a new arrangement transmits a new idea."
    When all these shaping forces-schools, open attitudes, the premium system, a genius for spatial thinking-interacted with one another on the rich U.S.mainland, they produced that American characteristic, emulation.Today that word implies mere imitation.But in earlier times it meant a friendly but competitive striving for fame and excellence.
The best title for this passage might be______.
选项 A、Inventive Mind
B、Effective Schooling
C、Ways of Thinking
D、Outpouring of Inventions
答案A
解析 本题中，B项和C项只是文章两个段落的意思，不能代表文章的中心意思。D项“发明的涌现"之意也不能代表文章的意思，本文只是以“早期的美国为何发明涌现”这一问题引出文章，并没有刻意说明发明的涌现。文章询问早期的美国涌现出一些重大发明的主要原因。文章第2段对此作了分析，指出了几个因素，学校教育、劳动者对新技术的热情、奖励制度，最主要的是具有发明创造的思想；在随后的几段中，作者分别探讨了初级学校教育带来的影响、奖励制度带来的影响、美国人特有的立体思维方式所起的作用；最后一段得出结论：这些因素相互影响，形成了创造性意
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