GRE写作6分ISSUE范文.doc

第一类题材 Study Issue 183 As we acquire more knowledge, things do not become more comprehensible, but more complex and more mysterious. Does knowledge render things more comprehensible, or more complex and mysterious? In my view the acquisition of knowledge brings about all three at the same time. This paradoxical result is aptly explained and illustrated by a number of advances in our scientific knowledge. Consider, for example, the sonar system on which blind bats rely to navigate and especially to seek prey. Researchers have learned that this system is startlingly sophisticated. By emitting audible sounds, then processing the returning echoes, a bat can determine in a nanosecond not only how far away its moving prey is but also the preys speed, direction, size and even specie! This knowledge acquired helps explain, of course, how bats navigate and survive. Yet at the same time this knowledge points out the incredible complexity of the auditory and brain functions of certain animals, even of mere humans, and creates a certain mystery and wonder about how such systems ever evolved organically. Or consider our knowledge of the universe. Advances in telescope and space-exploration technology seem to corroborate the theory of a continually expanding universe that began at the very beginning of time with a big bang. On one level this knowledge, assuming it qualifies as such, helps us comprehend our place in the universe and our ultimate destiny. Yet on the other hand it adds yet another chapter to the mystery about what existed before time and the universe. Or consider the area of atomic physics. The naked human eye perceives very little, of course, of the complexity of matter. To our distant ancestors the physical world appeared simple--seemingly comprehensible by means of sight and touch. Then by way of scientific knowledge we learned that all matter is comprised of atoms, which are further comprised of protons, neutrons, and electrons. Then we discovered an ev