GRE考试

【单选题】For me, scientific knowledge is divided into
mathematical sciences, natural sciences or sci-
ences dealing with the natural world (physical and
Line biological sciences), and sciences dealing with
(5) mankind (psychology, sociology, all the sciences
of cultural achievements, every kind of historical
knowledge).Apart from these sciences is philoso-
phy, about which we will talk shortly. In the first
place, all this is pure or theoretical knowledge,
(10) sought only for the purpose of understanding, in
order to fulfill the need to understand that is
intrinsic and consubstantial to man. What distin-
guishes man from animal is that he knows and
needs to know. If man did not know that the
(15) world existed, and that the world was of a certain
kind, that he was in the world and that he himself
was of a certain kind, he wouldn’t be man. The
technical aspects of applications of knowledge are
equally necessary for man and are of the greatest
(20) importance, because they also contribute to defin-
ing him as man and permit him to pursue a life
increasingly more truly human.
But even while enjoying the results of techni-
cal progress, he must defend the primacy and
(25) autonomy of pure knowledge. Knowledge sought
directly for its practical applications will have
immediate and foreseeable success, but not the
kind of important result whose revolutionary
scope is in large part unforeseen, except by the
(30) imagination of the Utopians. Let me recall a well-
known example. If the Greek mathematicians had
not applied themselves to the investigation of
conic sections, zealously and without the least
suspicion that it might someday be useful, it
(35) would not have been possible centuries later to
navigate far from shore. The first men to study
the nature of electricity could not imagine that
their experiments, carried on because of mere"
intellectual curiosity, would eventually lead to
(40) modern electrical technology, without which we
can scarcely conceive of contemporary life. Pure
knowledge is valuable for its own sake, because
the human spirit cannot resign itself to ignorance.
But, in addition, it is the foundation for practical
(45) results that would not have been reached if this knowledge had not been sought disinterestedly.
It can be inferred from the passage that to the author man’s need to know is chiefly important in that itA．allows the human race to progress technically
B．encompasses both the physical and social sciences
C．demonstrates human vulnerability
D．defines man’s essential humanity
E、has increased as our knowledge of the world has grown

网考网参考答案：D
网考网解析：
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