诺贝尔文学奖得主多丽丝·莱辛在其科幻小说《三四五区间的联姻》中，构建了两个截然相反的世界，一个是充满黑暗与邪恶的旧世界，一个是充满想象与希望的新世界。文章从乌托邦与反乌托邦切入，探讨作家通过对恶世界的反乌托邦书写承载其对美好社会的乌托邦想象，表达了莱辛对人类文明和未来世界的关注与希望。

Doris Lessing, the Nobel Prize laureate in literature, constructed two different worlds in her science novel The Marriages Between Zones Three, Four and Five: one is an old and wicked world full of darkness, and the other is a new world full of imagination and hope. From the perspectives of utopia and dystopia, this paper aims to explore the author's utopian vision of a good society carried by the dystopian narration of a wicked world, thus revealing Lessing's concern and hope for human civilization and future world.