2017年12月全国大学英语四六级考试已进入备考冲刺阶段——【点击查看各科目练习汇总】。英语六级考试中六级阅读所占比重为百分之三十五，阅读训练的重要性不言而喻，然而阅读技巧也是一门学问。来看看文都四六级小编为各位整理的2017年12月英语六级阅读训练(297)，请考生及时练习！
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【四级笔试真题】2010年-2017年英语四级考试真题解析汇总
【六级笔试真题】2010年-2017年英语六级考试真题解析汇总
Questions 31 to 35 are based on the following passage:
Designing a lens can be compared to playing chess. In chess a player tries to trap his opponent's king in a series of moves. In creating a lens a lens designer attempts to “trap” light by forcing all the rays arising from a single point in the subject to focus on a single point in the image, as a consequence of their passing through a series of transparent( 透明的) elements with precisely curved surfaces. Since in both cases the ultimate goal and the means by which it can be attained are known, one is tempted to think there will be a single best decision at any point along the way. The number of possible consequences flowing from any one decision is so large, however, as to bevirtually, if not actually, infinite. Therefore in lens design, as inchess, perfect solutions to a problem are beyond reach. Although this article will be concerned only with the design of photographic lenses, the same principles apply to all lenses.
The lens designer has one enormous advantage over the chess player: the designer is free to call on any available source of help to guide him through the staggering number of possibilities. Most of that help once came from mathematics and physics, but recently computer technology, information theory,chemistry, industrial engineering and psychophysics have all contributed to making the lens designer's job immeasurably more productive. Some of the lenses on the market today were inconceivable a decade ago. Others whose design is as much as a century old can now be mass produced at low cost. With the development of automatic production methods, lenses are made by the millions, both out of glass and out of plastics. Today's lenses are better than the best lenses used by the great photographers of the past.Moreover, their price may lower, in spite of the fact that 19th century craftsmen worked for only a few dollars a week and today's lenses are more complex. The lens designer cannot fail to be grateful for the science and technology that have made his work easier and his creations more widely available, but he is also humbled: it is no longer practical for a fine photographic lens to be designed from beginning to end by a single human mind.
31.Lens design and chess playing are similar in that ____.
A) the final goal and the means by which it can be reached are known
B) perfect solutions to a problem can be found
C) any one decision at any point along the way to the goal can bring numerous possible results
D) both A and C
32.The final goal of designing a lens is ____.
A) to trap the opponent's lenses
B) to focus light with lenses
C) to hand make lenses at low cost
D) to reflect light by means of curved surfaces
33.After the passage the author will talk about ____.
A) the principles of designing lenses
B) techniques of making contact lenses
C) the design of photographic lenses
D) styles of lenses
34.Which of the following words cannot be used to describe today's lenses?
A) More delicate. B) Cheaper. C) Numerous. D) Unpopular.
35.Lens designers today ____.
A) have a large source of help to fall back on B) receive a low salary
C) are less respectable than those of the past D) are not decisive in the lens design
【参考答案】
31-35 DBCDA
以上就是文都四六级小编为各位考生整理的关于2017年12月英语六级阅读训练，小编希望大家能顺利的取得好成绩~
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