以下是gre考试写作部分issue的优秀写作实例，通过这些优秀范文或是习作，考生可以借鉴里面的短语、句子或思路，给自己的写作找一些思路和灵感。

　　题目：

　　The function of science is to reassure; the purpose of art is to upset. Therein lies the value of each.

　　科学的作用是解惑;艺术的目的是创新。只有这样他们才各得其所。

　　正文：

　　Science and art are two of the most glorious fields in which numerous people have made their great contributions. As the society develops, people concern more about the function of science, of art and of other realms. Some may argue that the function of science is to reassure, and the purpose of art is to upset, however, as far as I am concerned, science and art have more significant values than just to reassure or to upset people.

　　The main function of science is to propel the development of human society and to provide people the power to understand the nature and ourselves. In the primordial days of the human history, when the conception of science first emerged, science was to answer people&aposs questions and to satisfy people&aposs curiosity towards myriad mysterious phenomenon. If we understand the science in such way, we can&apost see clear differences between the inchoate religion and the inchoate science, because, the functions of both of them are nearly the same, and both contain totally absurd theories if one studies them today. One may agree that in that period of time, science was largely to reassure people&aposs fear towards the mysteries just as what religions try to do.

　　However, the development of science finally makes it an important tool for us to understand the nature and to change the nature in our favor. The understanding of electricity expels the old thought that the thunder is a sign indicating that the god is angry. The advancement achieved in medicine greatly elongate human&aposs life, and nowadays people no longer depend on certain rituals to give them health. Discoveries and inventions alike have transformed our society into the nowadays form, and provide us great power to determine our future. If science is only to reassure us, how can we achieve the feats we have made through our history? As Francis Bacon once said, "Knowledge is power", the true function of science is to give us the power to conquer the difficulties we confront.

　　Unlike science, arts which seldom give us the power to better our material lives, mainly concern about our spiritual lives. Admittedly, some arts actually upset people by let us see the weakness of the human nature or the darkness of our society, as the art works of Michelangelo. However, arts possess much more functions than just upset us. Arts can ease our emotions and reassure us, as the music of Mozart does; arts can give us confidence and braveness, as the music of Beethoven does; arts can also tell us what philosophy is, as the music of Mahler does. Although arts possess so many functions,one can judge that the major function of art is to represent the life and to present the artists&apos ideals. Most literary works, such as fictions, poems, dramas, give us a vivid image of the society. Other forms of arts have the same kind of functions. For example, Tchaikovsky composed music to represent the hard life of the common Russian people, while Van Gogh drew pictures to represent the beauty of the nature. There&aposre also other pieces of art showing us the inner part of the artists, for instance, the representative new trend movie "four hundred blows". By presenting the life and the ideals, arts give us true understanding of our circumstances and ourselves in a spiritual way. Arts can not explain why it rains,but it explains how people feel about the rainy day.

　　Bore we can make full utilization of any subjects of study, we must at first understand their main functions and values to our society. For example, if we depend upon rituals and ceremonies to give us fortune and luck and to provide us enough to eat, we may probably die of hunger. The true value of these rituals and ceremonies lies in the fact that they are crucial part of our culture. It&aposs the same case for science and art, if we hold the opinion that science is only to reassure people, and art is only to upset people, we can&apost see the importance of these two subjects to our society. It&aposs possible that we ignore the development of them, and sequentially our society won&apost develop without the breakthroughs made in science, and our citizens won&apost lead a happy life and will stay in an ignorant status without the existence of great art works.

　　Science and art, as discussed above, are crucial to our society. Admittedly, science can reassure people by explain the mysterious phenomenon, and arts can upset people by let us see things we can&apost discover with our own eyes. However, if we simply regard science and art this way, we would miss so much that our society will stop developing or even collapse into chaos.

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