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  3. Many objects in daily use have clearly been influenced by science, but their form and function, their dimensions and appearance

Many objects in daily use have clearly been influenced by science, but their form and function, their dimensions and appearance

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问题     Many objects in daily use have clearly been influenced by science, but their form and function, their dimensions and appearance were determined by technologists, artisans, designers, inventors, and engineers  using nonscientific modes of thought. Many features and qualities of the objects that a technologist thinks about can’t be reduced to unambiguous verbal descriptions; they are dealt with in the mind by a visual, nonverbal process. In the development of Western technology, it has been nonverbal thinking, by and large, that has fixed the outlines and filled in the details, and rockets exist not because of geometry or thermodynamics, but because they were first a picture in the minds of those who built them.
    The creative shaping process of a technologist’s mind can be seen in nearly every artifact that exists. For example, in designing a diesel engine, a technologist might impress individual ways of non-verbal thinking on the machine by continually using an intuitive sense of rightness and fitness. What would be the shape of the combustion chamber? Where should be the valves placed? Should it have a long or short piston? Such questions have a range of answers that are supplied by experience, by physical requirements, by limitations of available space, and not least by a sense of form. Some decisions, such as wall thickness and pin diameter, may depend on scientific calculations, but the nonscientific component of design remains primary.
    Design courses, then, should be an essential element in engineering curricula. Nonverbal thinking, a central mechanism in engineering design, involves perceptions, the stock-in-trade of the artist, not the scientist. Because perceptive processes are not assumed, to entail "hard thinking", nonverbal thought is sometimes seen as a primitive stage in the development of cognitive processes and inferior to verbal or mathematical thought. But it is paradoxical that when the staff of the Historic American Engineering Record wished to have drawings made of machines and isometric views of industrial processes for its historical record of American engineering, the only college students with the requisite abilities were not engineering students, but rather students attending architectural schools.
    If courses in design, which in a strongly analytical engineering curriculum provide the background required for practical problem-solving, are not provided, we can expect to en- counter silly but costly errors occurring in advanced engineering systems. For example, early models of high-speed railroad cars loaded with sophisticated controls were unable to operate in a snowstorm because a fan sucked snow into the electrical system. Absurd random failures that plague automatic control systems are not merely trivial aberrations; they are a reflection of the chaos that results when design is assumed to be primarily a problem in mathematics.
The main point of the first two paragraphs can best be illustrated as ______.
选项 A、when a machine like a rotary engine malfunctions, it is the technologist who is best equipped to repair it
B、a telephone is a complex instrument designed by technologists using only nonverbal thought
C、the designer of a new refrigerator should consider the designs of other refrigerators before deciding on its form
D、the distinctive features of a suspension bridge reflect its designer’s conceptualization as wetl as the physical requirements of its site
答案D
解析 主旨题。D表示悬浮桥的显著特点反映出设计者的构思和桥的位置上的要求，它可以用来说明前两段的大意。A、B、C所举例子均不能说明前两段内容。
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