Pre-U Cambridge Geography: Rapid Memorisation Guide to Key Terminology | Pre-U Cambridge 地理：核心术语速记指南

📚 Pre-U Cambridge Geography: Rapid Memorisation Guide to Key Terminology | Pre-U Cambridge 地理：核心术语速记指南

Mastering the precise terminology of Pre-U Geography can feel overwhelming, but a systematic approach rooted in word origins, vivid imagery, and logical contrasts makes retention far easier. This guide breaks down essential physical and human geography terms by theme, coupling each with a mnemonic technique or memorable explanation. Use these pairings to convert abstract jargon into enduring knowledge for your examination success.

掌握 Pre-U 地理的精确术语可能令人望而生畏，但依靠词源、生动联想和逻辑对比的系统方法能让记忆轻松许多。本指南按主题梳理自然地理与人文地理的核心词汇，并为每个术语配上助记技巧或易于理解的解释。利用这些中英对照，把抽象的行话转化为持久的考点记忆，助力考试成功。

1. Geomorphology and Hydrology: Landform and Water Flow Terms | 地貌与水文：地形与水流术语

The term meander originates from the ancient Greek river Maiandros, known for its winding path; picture a snake’s slithering motion to recall how a river curves across a floodplain. An oxbow lake is created when a meander neck is cut off – imagine the U‑shaped collar of an ox yoke, which perfectly mirrors the abandoned loop left behind. Floodplain refers to the flat land beside a river channel, built from alluvium (deposited silt); the word ‘alluvium’ sounds like ‘all-you-vium’, hinting at the rich soil that attracts farming.

曲流（meander）一词源自古希腊蜿蜒的迈安德罗斯河；想象蛇行般的滑动就能记住河流在泛滥平原上弯曲前行。牛轭湖（oxbow lake）是曲流颈部截断后形成的——联想牛轭的 U 形项圈，恰好对应遗弃的环形河道。而泛滥平原（floodplain）指河道旁由冲积物（alluvium）堆积而成的平坦土地；’alluvium’ 谐音 ‘all-you-vium’，暗示土壤肥沃、吸引农耕。

Infiltration and throughflow describe water’s subsurface journey: infiltration is the downward entry into soil, while throughflow is the lateral movement within the soil layer; picture rain soaking vertically into a sponge, then travelling sideways when it hits a less permeable layer. Base flow, by contrast, is the groundwater contribution that sustains rivers during dry periods – remember ‘base’ as the baseline discharge that never vanishes. A levee is a natural ridge along a channel, elevated by repeated flood deposits; think of the French verb ‘lever’ (to raise), which shares its root.

下渗（infiltration）与壤中流（throughflow）描绘水在地下之旅：下渗是水垂直进入土壤，而壤中流是水在土层内横向移动；想像雨水垂直渗入海绵，碰到不透水层后再横向流动。基流（base flow）则是地下水补给维持旱季河川的流量——’base’ 如同基线，永不消失。天然堤岸（levee）是河道旁因反复洪水沉积而抬高的脊；联想法语动词 ‘lever’（升高），同源助记。

Weathering versus erosion : weathering is the in‑situ breakdown of rock, while erosion involves removal and transport. A simple mnemonic: ‘W’ for ‘weathering stays where it is’, ‘E’ for ‘erosion exports material’. Regolith is the blanket of loose, weathered rock covering bedrock; remember ‘regolith’ contains ‘lith’ (stone) and ‘reg’ sounds like ‘rag’ – a ragged stony blanket.

风化（weathering）与侵蚀（erosion）：风化是原地岩石崩解，侵蚀则涉及碎屑剥离与搬运。简单口诀：’W’ 代表 ‘weathering’ 原地不动，’E’ 代表 ‘erosion’ 移出物质。风化层（regolith）是覆盖基岩的疏松碎石层；’regolith’ 中的 ‘lith’ 意为石头，’reg’ 音似 ‘rag’，如同一层破烂的石毯。

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2. Coastal Systems: Waves and Landform Terminology | 海岸系统：波浪与地貌术语

Swash is the uprush of water onto a beach, and backwash is its return flow; picture ‘swash’ splashing forward and ‘backwash’ pulling back, like a washing machine cycle. Fetch is the uninterrupted distance over which wind blows to generate waves – think of ‘fetch’ as the wind’s ‘reach’. Constructive waves surge with a stronger swash, building a gentle beach, while destructive waves have a powerful backwash that scours sand away; the ‘con’ in constructive hints at ‘constructing’ beaches, and ‘de’ in destructive suggests ‘demolishing’ them.

冲流（swash）是水沿滩面上冲，回流（backwash）是水返回海中；联想洗衣机循环，冲流向前溅跃，回流向后抽退。风区长度（fetch）是风无阻碍吹拂以生成波浪的距离——’fetch’ 就是风的 ‘reach’（波及范围）。建设性波浪（constructive wave）冲流强，塑造平缓滩面；侵蚀性波浪（destructive wave）回流强，卷走沙粒；’con’ 暗指 ‘constructing’ 建造，’de’ 暗指 ‘demolishing’ 破坏。

Longshore drift is the zigzag transport of sediment along a coast by swash and backwash acting at an angle. Imagine a beach ball moved sideways with each wave – the net direction follows the prevailing wind. A spit is a narrow ridge of sand or shingle extending from the shore into the sea, often hooked; visualise a ‘spit’ of land being ‘spat’ out by the coastline. A tombolo is a sand bar linking an island to the mainland – the word sounds like ‘tom-bow-low’, a bow tying island to coast.

沿岸漂移（longshore drift）是冲流与回流以斜角作用使沉积物沿曲折路径迁移。想像一个沙滩球被每一道波浪横推，净输运方向顺着盛行风。沙嘴（spit）是由岸线伸入海中的狭长沙砾脊，常呈钩状；将 ‘spit’ 视作海岸 ‘spat’（喷出）的一块土地。连岛坝（tombolo）是连接岛屿与大陆的沙坝——发音 ‘tom-bow-low’，像一张弓把岛屿系在海岸上。

Eustatic sea‑level change is global, caused by water volume variations (e.g. ice melt), while isostatic change is local, due to land uplift or subsidence. Remember: ‘Eu’ = ‘global’ (like ‘euphoria’ spreading everywhere), ‘Iso’ = ‘isolated’ local adjustment. A salt marsh is a coastal wetland regularly flooded by tides; picture salt crystals glittering in a marshy meadow.

全球海平面变化（eustatic change）由冰融水体积增减导致，是世界性的；局部地壳均衡变化（isostatic change）由陆地升降引起，是区域性的。口诀：’Eu’ 如 euphoria 般遍及全球，’Iso’ 如 isolated 限于局部。盐沼（salt marsh）是经常被潮水淹没的海岸湿地；想像盐晶在草泽中闪光。

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3. Atmosphere and Weather: Climate Concepts | 大气与天气：气候概念术语

Albedo is the reflectivity of a surface, expressed as a fraction; high albedo (fresh snow) reflects much solar energy. Link ‘albedo’ to ‘albino’ (white), both sharing the Latin root ‘albus’. Insolation is incoming solar radiation (INcoming SOLar radiATION) – the acronym itself is the mnemonic. The Coriolis effect deflects winds and ocean currents due to Earth’s rotation; visualise a spinning carousel – from above, a thrown ball curves, just as wind deflects to the right in the Northern Hemisphere.

反照率（albedo）是地表反射太阳辐射的比例，高反照率（如新雪）反射大量能量。将 ‘albedo’ 联系 ‘albino’（白化），同源于拉丁词根 ‘albus’（白）。日射量（insolation）是 incoming solar radiation 的缩写（INcoming SOLar radiATION），缩写本身即助记。由地球自转导致的科里奥利效应（Coriolis effect）使风与海流偏转；想像旋转木马，从上方看抛出的球会弯曲路径，同样地北半球风向右侧偏转。

The ITCZ (Intertropical Convergence Zone) is the low‑pressure belt near the equator where trade winds meet, triggering persistent rainfall. Think ‘I’ for ‘intense rain’ and ‘TCZ’ sounding like ‘tick‑zee’ – the zone that ‘ticks’ with daily thunderstorms. An anticyclone is a high‑pressure system with outward‑spiralling winds; “anti” means opposite to cyclone, air sinks, bringing clear skies. A mid‑latitude depression is a low‑pressure system associated with fronts; link ‘depression’ to ‘low spirits’ – low pressure, low mood.

热带辐合带（ITCZ）是赤道附近的低压带，信风汇合产生持续降雨。’I’ 联想 ‘intense rain’（强烈降雨），’TCZ’ 音似 ‘tick‑zee’，每日雷暴如钟的滴答般准时。反气旋（anticyclone）是高压系统，气流向外辐散下沉；’anti’ 与气旋相反，带来晴空。中纬度低压系统（depression）伴有锋面活动；将 ‘depression’ 关联 ‘心情低落’——低压如同情绪低落，天气阴沉。

An occluded front forms when a cold front overtakes a warm front, lifting warm air completely off the ground. The word ‘occluded’ means ‘closed off’, like a door closing on the warm sector. Adiabatic cooling occurs when an air parcel rises and expands without heat exchange, dropping its temperature; ‘adiabatic’ = ‘no heat pass’ – ‘a‑dia‑batic’ (think ‘diabetes’ but here ‘dia’ means ‘through’, ‘batic’ from ‘bainein’ to go; ‘a‑dia‑bat’ = not going through). The environmental lapse rate is the actual temperature decrease with altitude; average 6.5 °C per 1000 m, while the dry adiabatic lapse rate is 10 °C/km.

当冷锋追上暖锋，锢囚锋（occluded front）形成，暖空气被抬离地面。’occluded’ 意为 ‘闭合’，如同关上暖区的大门。绝热冷却（adiabatic cooling）是气块上升膨胀时无热量交换的降温过程；’adiabatic’ 源自希腊语 ‘不可通过’—— ‘a‑dia‑batos’ 无热量穿透。环境递减率（environmental lapse rate）是实际气温随高度降低的速率，平均每千米 6.5 °C，而干绝热递减率为 10 °C/km。

Dry adiabatic lapse rate = 10 °C km⁻¹ ; Environmental lapse rate ≈ 6.5 °C km⁻¹

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4. Tectonic Hazards: Faults and Volcanoes | 构造灾害：断层与火山术语

The focus is the subsurface point where an earthquake originates; the epicentre is the point on the Earth’s surface directly above. Recall ‘epi’ means ‘upon’ – epicentre sits upon the focus. Richter scale measures magnitude logarithmically, each unit representing a tenfold increase in ground motion. A visual mnemonic: ‘Richter’ rhymes with ‘stricture’ – a strict log scale. The moment magnitude scale (Mw) more accurately measures energy release for large events; think ‘moment’ as the ‘momentous’ energy of the rupture.

震源（focus）是地下岩层破裂点，震中（epicentre）是其正上方的地面位置。’epi’ 意为 ‘在上方’——震中位于震源之上。里氏震级（Richter scale）按对数标度衡量地震动，每升高一级，地面振幅增大十倍。口诀：’Richter’ 音似 ‘stricture’，严格的对数标度。矩震级（moment magnitude scale, Mw）更准确衡量大震能量；’moment’ 喻意 ‘重要的力矩’。

A pyroclastic flow is a dense, fast‑moving mixture of hot gas and volcanic fragments; ‘pyro’ means fire, ‘clastic’ means broken pieces – a fiery, broken‑rock avalanche. Lahar is a volcanic mudflow: imagine ‘la’ from ‘lava’ and ‘har’ from ‘muddy horror’ – a flowing slurry of ash and water. The asthenosphere is the ductile mantle layer beneath the lithosphere; it is ‘astheno’ (weak) – the weak sphere enabling plate movement. At a subduction zone, oceanic lithosphere plunges beneath a continental or oceanic plate; picture ‘sub’ (under) ‘duction’ (led) – led underneath.

火山碎屑流（pyroclastic flow）是高温气体与碎屑的高速混合物；’pyro’ 火，’clastic’ 碎屑，一场炽热的碎岩雪崩。火山泥流（lahar）来自爪哇语，是火山灰与水搅成的泥浆；想象 ‘la’（lava）与 ‘har’（骇人）结合，泥浆洪流。软流圈（asthenosphere）是岩石圈下具塑性的地幔层；’astheno’ 意为软弱——脆弱的球层允许板块移动。俯冲（subduction）带处，大洋岩石圈插入另一板块之下；’sub’ 下，’duction’ 引导——向下牵引。

The Benioff zone is an inclined plane of earthquake foci descending into the mantle at a subduction zone; connect ‘Benioff’ with ‘bent‑off’ – the slab bends off downward. Shield volcanoes have gentle slopes formed by low‑viscosity basaltic lava; picture a warrior’s shield lying flat on the ground. A stratovolcano, in contrast, is steep and layered with ash and lava; ‘strato’ recalls ‘strata’, layers.

贝尼奥夫带（Benioff zone）是俯冲带向下倾斜的地震震源面；’Benioff’ 联想 ‘bent‑off’（弯曲离开），板片弯折下沉。盾形火山（shield volcano）坡缓，由低粘度玄武岩熔岩构成；想像战士的盾牌平放在地上。层状火山（stratovolcano）则陡峭，由火山灰与熔岩互层而成；’strato’ 暗示 ‘strata’（层）。

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5. Population and Migration: Demographic Terms | 人口与迁移：人口学术语

Crude birth rate (CBR) is annual live births per 1000 people; the word ‘crude’ signals it is unadjusted for age structure. Total fertility rate (TFR) is the average number of children a woman would have; it ‘totally’ reflects fertility. Replacement level fertility is about 2.1 children per woman: the extra 0.1 accounts for child mortality. The demographic transition model (DTM) charts population change through five stages; recall ‘D’ for ‘development’ – as a country develops, its population pattern transits.

粗出生率（CBR）是每千人年活产儿数；’crude’ 表示未经年龄结构矫正。总和生育率（TFR）是平均一名妇女一生生育的孩子数；’total’ 体现总和。更替水平（replacement level）约为每名妇女 2.1 孩，0.1 为补偿婴幼儿死亡。 人口转变模型（DTM）展示五阶段的人口变化；’D’ 代表 ‘development’——国家发展时，人口形态随之转变。

Dependency ratio compares the non‑working (0‑14 and 65+) to the working‑age population (15‑64). Think of the young and elderly ‘depending’ on the economically active; a high ratio signals strain. Push‑pull factors drive migration: push factors repel from the origin (e.g. unemployment), pull factors attract to the destination (e.g. job opportunities). Visualise a door: ‘push’ to leave, ‘pull’ to enter. Remittances are money sent by migrants back to their home countries; the word contains ‘remit’ – to send payment.

受抚养率（dependency ratio）是非劳动年龄人口（0‑14 与 65 岁以上）与劳动年龄人口（15‑64）之比。想像老少 “依赖” 于劳动力，高抚养率意味压力。推拉因素（push‑pull factors）驱动迁移：推力因素（如失业）促使人离开，拉力因素（如就业机会）吸引人前往。想像一扇门：推（push）以离开，拉（pull）以进入。汇款（remittances）是移民汇回家乡的款项；词根 ‘remit’ 即汇款。

An asylum seeker has applied for protection but status is undecided; a refugee is already recognised under international law. The ‘refugee’ seeks ‘refuge’ – a safe place already granted. Migration transition model parallels the DTM, showing how migration flows evolve: from rural‑rural to rural‑urban, then urban‑urban and counterurbanisation.

寻求庇护者（asylum seeker）已申请保护但身份未定；难民（refugee）则已获法律承认。’refugee’ 寻找 ‘refuge’（庇护所），已经获得安全。与人口转变模型相似的迁移转变模型展示移民流演变：从乡村至乡村，转向乡村至城市，再到城市至城市和逆城市化。

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6. Urban Geography: Urbanisation and City Terms | 城市地理：城市化与城市术语

Counterurbanisation is the process of people moving from urban areas to rural areas; ‘counter’ means against urbanisation – a reversal. Suburbanisation is the outward growth of towns into the surrounding countryside, forming suburbs. ‘Sub’ = below or near the city. Gentrification is the renovation of decaying inner‑city districts by more affluent incomers, often displacing poorer residents; blend ‘gentry’ + ‘ification’ – making an area ‘gentrified’.

逆城市化（counterurbanisation）是人口从城市向乡村迁移的过程；’counter’ 意为反城市化，逆向流动。郊区化（suburbanisation）是城镇向周边乡村扩展，形成郊区。’sub’ 指城市之下或近郊。绅士化（gentrification）指较富裕阶层迁入衰败内城进行修缮，常致原低收入居民被取代；结合 ‘gentry’（绅士）+ ‘ification’——使社区 “绅士化”。

Urban sprawl is the uncontrolled, low‑density expansion of a city into rural land; picture a city ‘sprawling’ lazily across the landscape. A megacity exceeds 10 million inhabitants; ‘mega’ means huge. A world city (or global city) is a command centre in the global economy, such as London or New York; not just big but influential. Urban heat island (UHI) describes the warmer temperatures in a city compared to its rural surroundings; imagine the city as an ‘island’ of heat in a cooler ‘sea’ of countryside.

城市摊大饼（urban sprawl）是城市低密度无管控地向乡村蔓延；想像城市慵懒地 ‘sprawl’（摊开）在地表上。人口超 1000 万的为巨型城市（megacity）；’mega’ 意为庞大。而世界城市（world city）如伦敦、纽约，是全球经济指挥中心，不只大，更具影响力。城市热岛（UHI）指城区气温高于周围乡村；把城市比作较凉乡村 “海洋” 中的一座热 “岛”。

Site versus situation : site is the physical land on which a settlement is built (e.g. a valley floor), situation is its location relative to other places (e.g. a gap through mountains). A quick mnemonic: ‘site’ is what you ‘sight’ at the spot; ‘situation’ relates to ‘situated near’ something. The bid‑rent theory explains how land costs vary with distance from the CBD; the closer, the higher the rent because of competition. Imagine bidders raising their hands higher and higher as the location becomes more central.

定址（site）与位势（situation）：定址是聚落本身的土地物理特征，位势是相对其他地方的位置。口诀：’site’ 是你在原地 ‘sight’（看到）的东西；’situation’ 涉及 ‘situated near’ 某处。地租竞价理论（bid‑rent theory）解释地租随距中心商务区距离变化；越近租金越高，因竞争激烈。想像竞标者越靠近中心，手举得越高。

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7. Economic Geography: Development and Globalisation | 经济地理：发展与全球化术语

GNI per capita (Gross National Income per person) measures average income; it is total GNI divided by population. HDI (Human Development Index) combines life expectancy, education, and income; remember ‘Human’ – it values health and knowledge beyond wealth. The Gini coefficient quantifies inequality on a scale from 0 (perfect equality) to 1 (complete inequality); ‘Gini’ sounds like ‘jeany’ – imagine a woman named Jeany who hates unfairness, so a higher score makes her more unhappy.

人均国民总收入（GNI per capita）衡量平均收入，是 GNI 除以人口。人类发展指数（HDI）综合预期寿命、教育年限与收入；’Human’ 提醒它超越财富，关注健康与知识。基尼系数（Gini coefficient）衡量不平等程度，0 为绝对平均，1 为绝对不平均；’Gini’ 音似 ‘jeany’，想像一位痛恨不公的珍妮小姐，基尼系数越高她越不悦。

The informal sector consists of unregulated, untaxed economic activities; it is ‘informal’ because it operates outside formal records. Fordism refers to mass production and assembly‑line manufacturing; name derived from Henry Ford; contrast post‑Fordism – flexible production, just‑in‑time delivery, and niche markets. ‘Post’ signals ‘after’, a shift from rigid routines.

非正规部门（informal sector）指未登记、不纳税的经济活动；因其在正式记录之外，故称 ‘informal’。福特制（Fordism）指大规模流水线生产，源于亨利·福特；而后福特制（post‑Fordism）强调弹性生产、及时供货和小众市场。’Post’ 表示 ‘之后’，从刚性惯例转向灵活。

Cumulative causation describes how an initial advantage spurs further growth, attracting more investment and creating a spiral of prosperity. The opposite, backwash effect, occurs when growth in one region drains resources and talent from surrounding areas. ‘Cumulative’ builds up, ‘backwash’ sucks back. Transnational corporation (TNC) operates in multiple countries, coordinating production globally; ‘trans’ means across nations. Outsourcing is contracting work to external firms, often abroad; ‘out’ as in sending work out.

累积因果效应（cumulative causation）指初期优势带动进一步增长，吸引更多投资，形成繁荣螺旋。相反，回流效应（backwash effect）指一地区增长汲取周边资源与人才。’Cumulative’ 累积向上，’backwash’ 冲刷回流。跨国公司（TNC）在多国运营，协调全球生产；’trans’ 意为跨越国界。外包（outsourcing）是将业务承包给外部公司，常在国外；’out’ 即发送出去。

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8. Resource Management: Energy and Sustainability | 资源管理：能源与可持续术语

Energy security is the reliable and affordable availability of energy; think ‘secure’ as in a locked fuel supply. A resource is classified as renewable if it can be replenished on a human timescale (solar, wind), and non‑renewable if finite (fossil fuels). ‘Carbon footprint‘ is the total greenhouse gas emissions caused by an individual or entity; picture a footprint made of carbon pressed into the earth.

能源安全（energy security）指稳定且负担得起的能源供应；’secure’ 如同锁定的燃料储备。可在人类时间尺度再生的为可再生资源，储量有限的为不可再生资源。碳足迹（carbon footprint）是个人或实体排放的温室气体总量；想像一只碳制成的足迹印在大地上。

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