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5。 A。 吉普塞人属于不同的，而且常常是对抗的民族的部落，还没有共同的语言和宗教信仰。
B。 他们领袖很腐败。 C。 他们潜在的团结来自被人看作是低于人类（次等人）。 D。 他们有点太讲究实效， B；C； D 三项不是主要问题。主要问题是A。 项。
Passage Three （Method of Scientific Inquiry）
Why the inductive and mathematical sciences； after their first rapid development at the culmination of Greek civilization； advanced so slowly for two thousand years—and why in the following two hundred years a knowledge of natural and mathematical science has accumulated； which so vastly exceeds all that was previously known that these sciences may be justly regarded as the products of our own times—are questions which have interested the modern philosopher not less than the objects with which these sciences are more immediately conversant。 Was it the employment of a new method of research； or in the exercise of greater virtue in the use of the old methods； that this singular modern phenomenon had its origin？ Was the long period one of arrested development； and is the modern era one of normal growth？ Or should we ascribe the characteristics of both periods to so…called historical accidents—to the influence of conjunctions in circumstances of which no explanation is possible； save in the omnipotence and wisdom of a guiding Providence？
The explanation which has bee monplace； that the ancients employed deduction chiefly in their scientific inquiries； while the moderns employ induction； proves to be too narrow； and fails upon close examination to point with sufficient distinctness the contrast that is evident between ancient and modern scientific doctrines and inquiries。 For all knowledge is founded on observation； and proceeds from this by analysis； by synthesis and analysis； by induction and deduction； and if possible by verification； or by new appeals to observation under the guidance of deduction—by steps which are indeed correlative parts of one method； and the ancient sciences afford examples of every one of these methods； or parts of one method； which have been generalized from the examples of science。
A failure to employ or to employ adequately any one of these partial methods； an imperfection in the arts and resources of observation and experiment； carelessness in observation； neglect of relevant facts； by appeal to experiment and observation—these are the faults which cause all failures to ascertain truth； whether among the ancients or the moderns； but this statement does not explain why the modern is possessed of a greater virtue； and by what means he attained his superiority。 Much less does it explain the sudden growth of science in recent times。
The attempt to discover the explanation of this phenomenon in the antithesis of “facts” and “theories” or “facts” and “ideas”—in the neglect among the ancients of the former； and their too exclusive attention to the latter—proves also to be too narrow； as well as open to the charge of vagueness。 For in the first place； the antithesis is not plete。 Facts and theories are not coordinate species。 Theories； if true； are facts—a particular class of facts indeed； generally plex； and if a logical connection subsists between their constituents； have all the positive attributes of theories。
Nevertheless； this distinction； however inadequate it may be to explain the source of true method in science； is well founded； and connotes an important character in true method。 A fact is a proposition of simple。 A theory； on the other hand； if true has all the characteristics of a fact； except that its verification is possible only by indirect； remote； and difficult means。 To convert theories into facts is to add simple verification； and the theory thus acquires the full characteristics of a fact。
1。 The title that best expresses the ideas of this passage is
＇A＇。 Philosophy of mathematics。 ＇B＇。 The Recent Growth in Science。
＇C＇。 The Verification of Facts。 ＇C＇。 Methods of Scientific Inquiry。
2。 According to the author； one possible reason for the growth of science during the days of the ancient Greeks and in modern times is
＇A＇。 the similarity between the two periods。
＇B＇。 that it was an act of God。
＇C＇。 that both tried to develop the inductive method。
＇D＇。 due to the decline of the deductive method。
3。 The difference between “fact” and “theory”
＇A＇。 is that the latter needs confirmation。
＇B＇。 rests on the simplicity of the former。
＇C＇。 is the difference between the modern scientists and the ancient Greeks。
＇D＇。 helps us to understand the deductive method。
4。 According to the author； mathematics is
＇A＇。 an inductive science。 ＇B＇。 in need of simple verification。
＇C＇。 a deductive science。 ＇D＇。 based on fact and theory。
5。 The statement “Theories are facts” may be called。
＇A＇。 a metaphor。 ＇B＇。 a paradox。
＇C＇。 an appraisal of the inductive and deductive methods。
＇D＇。 a pun。
Vocabulary
1。 inductive 归纳法
induction n。归纳法
2。 deductive 演绎法
deduction n。演绎法
3。 culmination 到达顶/极点
4。 conversant （with） 熟悉的，精通的
5。 exercise 运用，实行，执行仪式
singular 卓越的，非凡的，独一无二的
6。 conjunction 结合，同时发生
7。 omnipotence 全能，无限权/威力
8。 Providence （大写）指上帝，天道，天令
9。 monplace 平凡的，陈腐的
10。 inquiry 调查，探究（真理，知识等）
11。 doctrine 教义，学说，讲义
12。 correlative 相互关联的
13。 antithesis 对立面，对偶（修辞学中），对句
14。 coordinate 同等的，并列的
15。 subsist 生存，维持生活
16。 attribute 特征，属性
17。 connote 意味着，含蓄（指词内涵）
难句译注
1。 Why the inductive and mathematical sciences； after their first rapid development at the culmination of Greek civilization； advanced so slowly for two thousand years are questions which have interested the modern philosopher not less than the objects with which these sciences are more immediately conversant。
＇结构简析＇ 破折号后面的内容（见难句译注2）先撇开。这样便于理解，整个句子是主谓表结构，前面一个问题句作主语，question后跟一个定语从句，和not less than连接的表语。
＇参考译文＇ 为什么归纳发和数学科学，在希腊文明达到顶点时首先快速发展后，两千年内进展缓慢，现在哲学家对这个问题的兴趣不亚于对这些科学很熟悉研究的对象。
2。 …—and why in the following two hundred years a knowledge of natural and mathematical science has accumulated； which so vastly exceeds all that was previously known that these sciences may be justly regarded as the products of our own times—…
＇参考译文＇ 问什么在后来的二百年中自然科学数理科学积累起来，它们广泛的超越了过去已知的一切，所以就把这些科学视为我们时代的产品。
3。 arrested development 停滞发展（被制止了的发展）。
4。 Or should we ascribe the characteristics of both periods to so…called historical accidents—to the influence of conjunctions in circumstances of which no explanation is possible； save in the omnipotence and wisdom of a guiding Providence？
＇参考译文＇ 或者我们是否应当把两个阶段的特点归因于所谓的历史的偶然性（意外事件）——归因于客观环境中相似（结合）的影响。这一点除非以指导一切的上帝的智慧和无限权利来解释，否则难以解说清楚。
写作方法与文章大意
这是篇议论文，论及科学探索的方法，总体是因果写法，具体分析又是对比写法。作者采用问答方式探究为什么希腊文明顶峰之后两千年，科技发展缓慢，而最近两百年又迅速发展超越前人，其原因在哪里？是采用新，旧方法所致，历史之偶然性，还是上天安排。
然后以现代用归纳法，古代用演绎法太狭隘说明科学总是在观察，实验，检验，证实中前进。但事实难以解释慢和快的现象。最后以“对立”——事实和理论对立古代重视事实来解释。然这两者是对立的统一。真正的理论就是事实。事实，构成之间具逻辑联系，就具有理论的一切正面特性。这种区分虽不足以解释科学研究中真正方法，但奠定了良好的基础，含有真正方法中的重要特性。
答案祥解
1。 D。 科学研究/探索的方法。文章一开始就提出问题，为什么从希腊文化顶峰时期后两千年来归纳法和数学科学发展如此缓慢，而后的两百年又超越了前人，是应用新，旧方法关系还是其它（见难句译注1，2）。第