📚 Year 11 OCR Geography: Key Terms Memorisation Guide | 11年级 OCR 地理：核心术语速记指南
Mastering geographical vocabulary is the first essential step to success in your Year 11 OCR Geography examination. This guide brings together the must-know terms from both physical and human geography, with clear definitions in English and Chinese, plus memory tips to help you quickly recall each concept under pressure. Whether you are revising tectonic hazards, coastal processes, urban challenges or resource management, the terms below are frequently tested in multiple-choice, short-answer and extended-response questions.
掌握地理词汇是赢得 11 年级 OCR 地理考试的首要关键。本指南汇集了自然地理与人文地理中必须掌握的术语，提供中英文清晰定义，并附上速记技巧，助你在考试压力下快速回忆每个概念。无论你复习的是构造灾害、海岸过程、城市挑战还是资源管理，以下术语常在选择题、简答题和扩展回答题中出现。
1. Tectonic Hazards Key Terms | 构造灾害关键术语
Plate boundary (plate margin) – subducts beneath a lighter continental plate, triggering earthquakes and volcanoes. Think 'boundary = meeting line'.
板块边界 – 两个板块相遇的边缘。在消亡型边界，较重的洋壳俯冲到较轻的陆壳之下，引发地震与火山。联想："边界" 就像两块拼图接触的线。
Subduction – mantle. The sinking plate melts, generating magma that rises to form volcanoes. Mnemonic: 'Sub-duction = going down under'.
俯冲 – 一个板块插入另一个板块下方进入地幔的过程。下沉板块熔化，产生的岩浆上升形成火山。记忆法："俯" 意为向下，"冲" 表示插入。
Epicentre – The point on the Earth's surface directly above the focus of an earthquake. Shaking is often strongest here. Visualise the epicentre as the 'ground zero' target on a map.
震中 – 地震震源正上方的地表点。此处震动通常最强烈。可将震中想象为地图上的"爆心投影点"。
Magnitude (Richter scale) – A numerical measure of the energy released by an earthquake. Each whole number increase means a tenfold increase in wave amplitude. The Richter scale is logarithmic, not linear.
震级（里氏震级） – 衡量地震释放能量的数值。每增加一级，地震波振幅放大10倍。里氏震级为对数尺度，而非线性增长。
Tsunami – A series of giant sea waves caused by underwater earthquakes, volcanic eruptions or landslides. The name derives from Japanese 'harbour wave'. Remember that tsunami waves travel at jet speed in deep water but grow tall near the coast.
海啸 – 由海底地震、火山喷发或滑坡引发的一系列巨型海浪。名称源自日语"港浪"。记住海啸波在深水中以喷气式飞机速度传播，靠近海岸时陡然升高。
Pyroclastic flow – ed from a volcano. It can reach temperatures of 1,000 °C and moves at over 100 km/h. Think 'pyro = fire, clastic = fragments'.
火山碎屑流 – 火山喷发出的高温气体、火山灰和岩石碎屑构成的快速移动流。温度可达 1000 °C，时速超过 100 公里。联想："pyro" 表示火，"clastic" 表示碎屑。
2. Weather Hazards and Climate Key Terms | 天气灾害与气候关键术语
Tropical storm (hurricane/typhoon/cyclone) – An intense low-pressure system that forms over warm tropical oceans. It has a calm eye, a swirling eyewall and spiral rainbands. Different names are used depending on the region: hurricane in the Atlantic, typhoon in the Northwest Pacific, cyclone in the Indian Ocean.
热带风暴（飓风/台风/气旋） – 在温暖热带海洋上形成的强烈低压系统，拥有平静的风眼、旋转的眼墙和螺旋雨带。因海域不同名称各异：大西洋称飓风，西北太平洋称台风，印度洋称气旋。
Storm surge – An abnormal rise of sea level during a tropical storm, caused by low pressure and strong onshore winds. This is often the deadliest hazard, flooding low-lying coasts. Picture a 'bulge' of water being pushed ahead of the storm.
风暴潮 – 热带风暴期间，由于低压和强向岸风造成的海平面异常上升。这往往是最致命的灾害，淹没低洼海岸。想象一个被暴风推着翻涌上岸的"水穹"。
Global atmospheric circulation – The worldwide pattern of air movement driven by uneven heating of the Earth and rotation. It forms Hadley, Ferrel and Polar cells and creates regular wind belts. Remember 'Hadley cells are near the Had (had) desert belts – 30 ° N and S'.
全球大气环流 – 由地球受热不均和自转驱动的全球空气运动模式。形成哈得来环流圈、费雷尔环流圈和极地环流圈，并产生规律性风带。记忆："哈得来环流圈靠近'哈得的'沙漠带——南北纬 30°"。
Anticyclone – n winter, cold, frosty conditions. Anticyclone = Anti-cyclone, opposite of a swirling low.
反气旋 – 空气下沉的高压系统，带来晴天、静稳天气和极端气温。夏季引发热浪，冬季带来严寒与霜冻。反气旋即"反对气旋"，与旋转的低压相反。
Precipitation – et. Orographic precipitation occurs when moist air is forced to rise over mountains. Think 'precipitation = any falling water product'.
降水 – 从大气中降落的任何形式的水，包括雨、雪、冰雹和雨夹雪。地形降水发生在潮湿空气被迫抬升翻越山脉时。联想："降水" 涵盖所有"降"落的水。
3. Climate Change Key Terms | 气候变化关键术语
Enhanced greenhouse effect – The increased warming of the Earth due to additional greenhouse gases released by human activities (burning fossil fuels, deforestation). This is not the natural greenhouse effect that keeps Earth habitable, but its dangerous intensification.
增强温室效应 – 由于人类活动（燃烧化石燃料、森林砍伐）释放额外温室气体造成的地球变暖加剧。这不是使地球宜居的天然温室效应，而是其危险的强化。
Carbon footprint – The total amount of carbon dioxide and other greenhouse gases emitted directly or indirectly by an individual, organisation or product. Eating less meat and flying less reduce your footprint. Imagine you leave a 'carbon' shoe print with every activity.
碳足迹 – 个人、组织或产品直接或间接排放的二氧化碳及其他温室气体的总量。少吃肉、少坐飞机可以减小足迹。想象每项活动都会留下一个"碳"鞋印。
Mitigation – ate change, such as switching to renewable energy, carbon capture and reforestation. Think 'mitigation = minimize the source'.
减缓 – 减少气候变化原因的行动，比如转向可再生能源、碳捕捉和再造林。联想："减缓" 就是减少排放源头。
Adaptation – Adjustments to cope with the impacts of climate change, like building sea walls, developing drought-resistant crops and improving flood warning systems. It deals with the consequences, not the cause.
适应 – 为应对气候变化影响而采取的调整措施，如修建海堤、培育抗旱作物和改进洪水预警系统。适应针对的是后果，而非原因。
Quaternary period – The most recent geological time period, spanning the last 2.6 million years. It is characterised by alternating glacial and interglacial cycles. OCR questions often ask about climate change evidence during the Quaternary.
第四纪 – 最近的地质时期，涵盖了过去的 260 万年，以冰期和间冰期交替为特征。OCR 考试常问第四纪的气候变化证据。
4. Ecosystems and Biomes Key Terms | 生态系统与生物群系关键术语
Biome – A large-scale ecosystem defined by climate, plants and animals, such as tropical rainforest, tundra or savanna. The same biome appears in different continents under similar climatic conditions. The suffix '-ome' indicates a large community.
生物群系 – 由气候、植被和动物定义的大尺度生态系统，如热带雨林、苔原或稀树草原。相同生物群系在相似气候条件下出现在不同大陆。"群系" 暗示巨大的生命集合体。
Abiotic components – Non-living factors of an ecosystem, e.g. temperature, sunlight, soil pH and water availability. Together with biotic components, they determine the biome. 'A-biotic' means 'without life'.
非生物成分 – 生态系统中的非生命因子，如温度、阳光、土壤 pH 值和水分。与生物成分共同决定生物群系。"非生物" 即没有生命。
Trophic level – The position an organism occupies in a food chain: producers, primary consumers, secondary consumers and decomposers. Energy decreases as you move up trophic levels. The pyramid shape helps visualise the loss of energy.
营养级 – 生物在食物链中的位置：生产者、初级消费者、次级消费者和分解者。能量沿营养级上升而递减。金字塔形状有助于想象能量流失。
Nutrient cycling – The transfer of nutrients between biomass, soil and litter. In tropical rainforests the cycle is rapid due to heat and moisture; in tundra it is slow. Think of the cycle as a recycling loop with arrows.
养分循环 – 营养物质在生物量、土壤和枯枝落叶之间的转移。热带雨林中因高温高湿循环迅速；苔原则缓慢。将循环想象为带箭头的回收圈。
Biodiversity – habitat or ecosystem. High biodiversity makes an ecosystem resilient to changes. Remember 'bio = life, diversity = variety'.
生物多样性 – 特定栖息地或生态系统中动植物生命的多样性。高生物多样性使生态系统更能抵御变化。拆字："生物" 指生命，"多样性" 指多种多样。
Ecosystem services – The benefits humans receive from ecosystems, like provisioning (food, water), regulating (climate, flood control), supporting (nutrient cycling) and cultural (recreation). Link each P-R-S-C to examples.
生态系统服务 – 人类从生态系统中获得的益处，包括供给服务（食物、水）、调节服务（气候、防洪）、支持服务（养分循环）和文化服务（休闲娱乐）。将 P-R-S-C 与例子对应。
5. Coastal Landscapes in the UK Key Terms | 英国海岸景观关键术语
Fetch – The distance over which wind blows across open water to generate waves. A longer fetch produces more powerful waves. 'Fetch' sounds like 'stretch' – the longer the stretch, the bigger the waves.
吹程 – 风吹过开阔水面生成波浪的距离。吹程越长，波浪能量越大。"Fetch" 听起来像 "stretch"（伸展），伸展越长，浪越大。
Longshore drift – The zigzag movement of sediment along a coast caused by waves hitting the shore at an oblique angle. Swash carries material up the beach at an angle; backwash drags it straight back down. This is the dominant process of coastal transportation.
沿岸漂移（沿滨漂流） – 波浪以斜角冲击海岸造成的沉积物锯齿状沿岸运动。冲流将物质以一定角度带上滩面，回流则将其垂直带回海中。这是海岸搬运的主导过程。
Spit – A narrow finger of sand or shingle that extends from the coast into the open water, formed by longshore drift. Spits often curve at the tip due to wave refraction and may create salt marshes behind them. Imagine a 'spit' as a sandy finger 'spitting' out into the sea.
沙嘴 – 由沿岸漂移形成的、从海岸伸向开阔水域的狭长沙砾滩。沙嘴末端常因波浪折射而弯曲，并在后方形成盐沼。将沙嘴想象成海岸"吐"出的一条沙舌。
Headland – A prominent area of hard rock that juts out into the sea, resisting erosion while softer rock around it retreats. Headlands are subjected to hydraulic action, abrasion and sub-aerial processes, forming cliffs, caves and stacks.
岬角 – 突入海中的硬岩突出地带，能抵抗侵蚀，而周围软岩则向后倒退。岬角受到水力作用、磨蚀和地表过程影响，形成悬崖、洞穴和海蚀柱。
Wave-cut platform – A gently sloping rocky surface at the base of a retreating cliff, left behind after cliff erosion. It is exposed at low tide and shows the past extent of the cliff line. Visualise it as a 'sliced' rock shelf.
波切台（海蚀平台） – 后退悬崖基部留下的一片微倾斜岩石面，是悬崖侵蚀后的残留。低潮时露出，标示了悬崖线的过往位置。视其为被波浪"切削"出的岩盘。
Management technique – Hard engineering – Coastal defences that use solid structures like sea walls, groynes and rock armour to control erosion and flooding. Hard engineering is usually expensive and can cause downstream problems.
硬式工程 – 使用防波堤、丁坝和抛石等坚固构筑物控制侵蚀与洪水的海岸防御方式。硬式工程通常造价高昂，并可能引起下游问题。
6. River Landscapes in the UK Key Terms | 英国河流景观关键术语
V-shaped valley – A steep-sided valley formed in the upper course of a river where vertical erosion dominates. The river cuts downwards while mass movement and weathering shape the slopes. The 'V' cross-section is characteristic of youthful rivers.
V 形谷 – 在河流上游下蚀作用为主形成的陡峭谷地。河流向下切割，同时块体运动和风化塑造坡面，横剖面呈"V"形，是幼年河流的标志。
Meander – A pronounced bend in a river channel in its middle and lower courses. Erosion occurs on the outer, concave bank (river cliff) and deposition on the inner, convex bank (slip-off slope). The word rhymes with 'wander' – the river wanders across the floodplain.
曲流（河曲） – 河流中下游河道明显的弯曲段。凹岸遭受侵蚀形成河岸悬崖，凸岸发生沉积形成滑走坡。词源联想：meander 与 "wander"（漫步）押韵，河流在泛滥平原上蜿蜒漫步。
Oxbow lake – A crescent-shaped lake formed when a meander is cut off from the main channel by lateral erosion during a flood. The abandoned loop fills with water, and sedimentation gradually fills it over time. Picture an oxbow as the old 'horseshoe' left behind.
牛轭湖 – 洪水期侧蚀导致曲流被截断后与原河道分离而形成的月牙形湖泊。废弃的曲流环积满水，随时间逐渐被沉积物填平。想象牛轭湖是遗留的"马蹄铁"形水域。
Floodplain – The wide, flat area of land on either side of a river that is periodically flooded. Meander migration and overbank deposition of alluvium build the floodplain. Rich soils make floodplains attractive for farming.
泛滥平原（河漫滩） – 河流两侧周期性被洪水淹没的宽阔平地。曲流迁移和漫滩沉积的冲积物建造了泛滥平原。肥沃的土壤使其成为耕种热点。
Levee – A natural or artificial raised bank along a river channel. Natural levees form when repeated overbank deposition piles up sediment closest to the channel during floods. Artificial levees are built to reduce flood risk.
天然堤 – 沿河道形成的天然或人工加高堤岸。天然堤是多次洪水漫滩沉积将粗颗粒堆积在近堤岸处而形成。人工堤则用以降低洪水风险。
Hydrological cycle (water cycle) – The continuous movement of water between the atmosphere, land and oceans through processes like evaporation, condensation, precipitation, interception and runoff. It is a closed system globally. Memorise the key stores and flows.
水循环 – 水在大气、陆地和海洋之间通过蒸发、凝结、降水、截留和径流等过程持续运动。全球尺度为闭合系统。记住关键储库与流径。
7. Urban Issues and Challenges Key Terms | 城市问题与挑战关键术语
Urbanisation – . The rate of urbanisation is currently fastest in LICs and NEEs. Remember: urbanisation = % urban, not simply total urban population.
城市化 – 居住于城镇和城市的人口比例上升。由乡城迁移和自然增长推动。当前城市化速率在低收入国家和新兴经济体中最快。注意：城市化指城镇人口百分比，而非仅仅是城镇总人口。
Megacity – and Shanghai. Many megacities face challenges of housing, transport and waste management. 'Mega' = giant.
特大城市 – 人口超过 1000 万的城市，如东京、德里和上海。许多特大城市面临住房、交通和废物管理的挑战。"Mega" 意为巨型。
Brownfield site – es reduces pressure on greenfield land and is often encouraged by government policy. Think 'brown = already used and soiled'.
棕地 – 此前曾用于工业或商业用途、可能受污染的土地。重新开发棕地可减轻对绿地的压力，常受政府政策鼓励。联想："棕"代表已经使用并可能变脏。
Greenfield site – aper but leads to urban sprawl and loss of farmland. Greenfield = green fields, untouched.
绿地 – 乡村或城市边缘未经开发的未建设土地。在绿地上建设成本较低，但导致城市蔓延和农田损失。"绿地"即绿色的田地，未触动。
Sustainable urban living – Managing cities so that people today have a good quality of life without compromising the ability of future generations to meet their needs. Strategies include efficient public transport, renewable energy, green roofs, and waste recycling.
可持续城市生活 – 管理城市，使当代人享有良好生活质量，同时不损害子孙后代满足需求的能力。策略包括高效公共交通、可再生能源、屋顶绿化和废物回收。
Counter-urbanisation – The movement of people from urban areas to rural or semi-rural areas. This can lead to rural service decline as commuters still rely on urban jobs but demand different amenities. It is a feature of many HICs.
逆城市化 – 人口从城市向乡村或半乡村地区迁移。这可能导致乡村服务衰退，因为通勤者仍依赖城市就业却改变了对便利设施的需求。逆城市化是高收入国家的常见特征。
8. Economic Development and Quality of Life Key Terms | 经济发展与生活质量关键术语
Gross Domestic Product (GDP) – The total value of goods and services produced within a country in one year, usually given in US dollars per capita for comparison. GDP alone does not show equality or quality of life.
国内生产总值 (GDP) – 一国一年内生产的商品和服务的总价值，为便于比较常以人均美元表示。GDP 单独并不能反映平等程度或生活质量。
Human Development Index (HDI) – A composite measure that combines life expectancy, education (mean years of schooling) and GNI per capita. It ranks countries from 0 to 1. Remember HDI captures both wealth and wellbeing.
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