根据下面资料，回答31-40题
Factors for America' s Inventiveness
What accounts for the great outburst of major 31 in early America--breakthroughs such as the telegraph,the steamboat and the weaving machine?
Among the many shaping factors,I would 32 out the country' s excellent elementary schools;a labor force that welcomed the new technology;the practice of 33 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 34 of geometry and trigonometry.
Acute foreign observers related American 35 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 36 ,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 37 their faith in the beneficence of technological advance.
Given this optimistic 38 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 39 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 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 40 imitation. But in earlier times it meant a friendly but competitive striving for fame and excellence.

第（39）题选

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E E