【单选题】
Although SF seems to take as its future social settings nothing more ambiguous than the current status or its totally evil variant, SF is actually a more important vehicle for speculative visions about macroscopic social change.At this level, it is hard to deal with any precision as to when general value changes or evolving social institutions might appear, but it is most important to think about the kinds of societies that could result from the rise of new forms of interaction, even if one cannot predict exactly when they might occur.
In performing this "what if..." function, SF can act as a social laboratory as authors ruminate upon the forms social relationships could take if key variables in their own societies were different, and upon what new belief systems or mythologies could arise in the future to provide the basic rationalizations for human activities. If it is true that most people find it difficult to conceive of the ways in which their society, or human nature itself, could undergo fundamental changes, then SF of this type may provoke one’s imagination --to consider the diversity of paths potentially open to society.
Moreover, if SF is the laboratory of the imagination, its experiments are often of the kind that may significantly alter the subject matter even as they are being carried out. That is, SF has always had a certain cybernetic effect on society, as its visions emotionally engage the future--consciousness of the mass public regarding especially desirable and undesirable possibilities. The shape a society takes in the present is in part influenced by its image of the future; in this way particularly powerful SF images may become self-fulfilling or self-avoiding prophecies for society. For that matter, some individuals in recent years have even shaped their own life styles after appealing models provided by SF stories. The reincarnation and diffusion of SF futuristic images of alternative societies through the media of movies and television may have speeded up and augmented SF’s social feedback effects. Thus SF is not only change speculator but change agent, send an echo from the future that is becoming into the present that is sculpting it. This fact alone makes imperative in any education system the study of the kinds of works discussed in this section.
B、its general assumptions.
C．its social impact.
D．its utter fabrications.
网考网参考答案：A
网考网解析：
[解析] 题干问：“在讨论科幻小说的作用时，作者主要集中的是……”。很明显，纵观全文发现作者主要讲述了科幻小说有各种各样的特征和特性，因此选项A“它的主要特征”为正确选项。而选项B“总的假设”和选项C“社会影响”，虽然在2、4段分别提到这两个选项，但都不是作者主要集中讲述的对象，选项D“完全的编造”是错误的。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>
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