贫民窟形成的原因是什么？
What causes slums?
贫民窟主要是城市增长快过制度供给的结果，不是个人选择的产物。人口集中的速度快过住房和管网铺开的速度，正规房源跟不上，只能自建或在他人土地上落脚。产权不清、审批登记门槛高，加盖与出租难合法化，居民缺少改善住所的动力；岗位集中在低薪部门，服务常按户籍或产权分配。拆迁不等于消除贫民窟，只要涌入的动力还在，新的聚居还会形成。
Slums come mainly from urban growth outrunning the institutions meant to house it, not from individual choices. People concentrate in cities faster than housing and pipe networks can be laid out, and when the formal market cannot supply enough homes, they build their own or settle on land belonging to others. Unclear title and demanding approval and registration rules keep extensions and rentals informal, which also leaves residents little reason to upgrade a dwelling, while work clusters in low-paid jobs and services are often allocated by household registration or property rights. Clearing a shantytown is not the same as ending a slum: while the forces driving the inflow remain, new informal settlements form again.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-08-23
来源 · Source
Anthony Giddens,《Sociology》Polity Press 多版;中译《社会学》北京大学出版社
A. Giddens, Sociology, Polity Press, various editions; Chinese ed. Peking University Press
#贫民窟 #住房
智慧城市依赖哪些技术？
What technologies do smart cities rely on?
通过物联网传感器、数据与算法优化交通、能源与治理，但也带来隐私与算法偏见的风险。
IoT sensors, data, and algorithms optimize mobility, energy, and governance, while raising privacy and bias risks.
难度 专业 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-08-23
来源 · Source
Anthony Giddens,《Sociology》Polity Press 多版;中译《社会学》北京大学出版社
A. Giddens, Sociology, Polity Press, various editions; Chinese ed. Peking University Press
#智慧城市 #物联网
公共交通的外部收益是什么？
What are the external benefits of public transit?
公交减少拥堵、污染与道路占用，其社会效益常高于使用者付费，因此需要补贴来矫正。
Transit cuts congestion, pollution, and road use; its social benefits often exceed fares, justifying subsidies.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-08-23
来源 · Source
Anthony Giddens,《Sociology》Polity Press 多版;中译《社会学》北京大学出版社
A. Giddens, Sociology, Polity Press, various editions; Chinese ed. Peking University Press
#公共交通 #外部性
什么是城市蔓延？
What is urban sprawl?
城市蔓延指城市用地以低密度、摊大饼的方式向外扩张：郊区地块大、路网稀疏、功能单一，同样多的人口要摊上更长的道路、管线和通勤距离，人均的基建与能耗因此高于紧凑城区，被占的多是城市边缘的农田。它不等于城市化或郊区化：后两者说人口与岗位迁往何处，蔓延说占地的形态，所以总人口不增长、只要密度继续摊薄，也照样在蔓延。
Urban sprawl is the outward expansion of urban land at low density, spreading like a pancake: suburbs have large blocks, sparse roads and single uses, so the same population is spread over longer streets, pipelines and commutes, which makes infrastructure and energy use per person higher than in a compact city, while the land taken is usually farmland at the urban edge. It is not the same as urbanization or suburbanization: those say where people and jobs go, sprawl describes the form of land occupation, so a city with a flat population can keep sprawling as long as density keeps thinning.
难度 进阶 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-08-23
来源 · Source
Anthony Giddens,《Sociology》Polity Press 多版;中译《社会学》北京大学出版社
A. Giddens, Sociology, Polity Press, various editions; Chinese ed. Peking University Press
#城市蔓延 #土地使用
什么是紧凑城市？
What is a compact city?
紧凑城市主张高密度、混合用途与公交导向开发，以减少通勤与能耗、保护绿地。
A compact city promotes high density, mixed use, and transit-oriented development to cut commuting, energy, and preserve green space.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23
来源 · Source
Anthony Giddens,《Sociology》Polity Press 多版;中译《社会学》北京大学出版社
A. Giddens, Sociology, Polity Press, various editions; Chinese ed. Peking University Press
#紧凑城市 #可持续
为什么城市化会发生？
Why does urbanization happen?
产业聚集提供就业，吸引人口向城市集中。
Industry clusters draw jobs and people to cities.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-08-23
来源 · Source
Anthony Giddens,《Sociology》Polity Press 多版;中译《社会学》北京大学出版社
A. Giddens, Sociology, Polity Press, various editions; Chinese ed. Peking University Press
#城市 #产业 #就业
什么是城市规划？
What is urban planning?
城市规划是对土地使用、交通与公共设施的统筹安排，以改善宜居性与效率。
Urban planning organizes land use, transport, and public facilities to improve livability and efficiency.
难度 入门 · 适合 小学低段(6-8)
CC BY 4.0 · 已核验 · Verified 2026-08-23
来源 · Source
Anthony Giddens,《Sociology》Polity Press 多版;中译《社会学》北京大学出版社
A. Giddens, Sociology, Polity Press, various editions; Chinese ed. Peking University Press
#城市规划 #基础设施
什么是城市基础设施？
What is urban infrastructure?
支撑城市运转的系统，包括供水、电网、道路、排水与通信。
It is the systems keeping cities running: water, power, roads, drainage, and communications.
难度 入门 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23
来源 · Source
Anthony Giddens,《Sociology》Polity Press 多版;中译《社会学》北京大学出版社
A. Giddens, Sociology, Polity Press, various editions; Chinese ed. Peking University Press
#基础设施 #城市