📚 IGCSE OCR Geography: Glossary and Rapid Memorisation Guide | IGCSE OCR 地理：词汇术语速记指南
Mastering geographical terminology is key to scoring high on your IGCSE OCR Geography exam. This guide presents essential terms with clear explanations and clever memory aids, helping you retain definitions effortlessly. Each section pairs an English paragraph with its Chinese equivalent, so you can learn actively and revise efficiently.
掌握地理术语是 IGCSE OCR 地理考试取得高分的关键。本指南精选核心词汇，配有清晰解释和巧妙的记忆技巧，让你轻松记住定义。每个部分都先呈现英文，再紧跟中文段落，帮助你在主动学习中高效复习。
1. River Erosion Processes | 河流侵蚀作用
River erosion reshapes landscapes through four main mechanisms. Use the mnemonic AAHS to recall them all.
河流通过四种主要机制侵蚀并重塑地貌。记住首字母缩略词 AAHS 就能把它们全部记牢。
Abrasion – The river’s load scrapes and wears away the bed and banks, like sandpaper against wood. Memory tip: ‘Abrasion’ sounds like ‘abrasive’.
磨蚀 – 河水携带的沙石刮擦河床与河岸，如同砂纸打磨木头。速记技巧： “abrasion” 与 “研磨” 发音相似。
Attrition – Rocks and pebbles collide with each other, becoming smaller and rounder over time. Memory tip: ‘Attrition’ means wearing down by rubbing — think of pebbles ‘attacking’ each other.
磨损 – 岩石和卵石相互碰撞，逐渐变小、变圆。速记技巧： “attrition” 意为相互磨耗，想象卵石之间不断 “攻击” 彼此。
Hydraulic action – The sheer force of moving water compresses air into cracks in the rock, widening them. Memory tip: ‘Hydraulic’ points to the power of water — picture a high-pressure water jet.
水力作用 – 流动的水将空气压入岩石裂缝，使裂缝扩大。速记技巧： “hydraulic” 指水的力量 — 想象高压水枪的冲击。
Solution (corrosion) – River water chemically dissolves soluble minerals like limestone. Memory tip: ‘Solution’ dissolves the rock just like sugar dissolves in tea.
溶蚀 – 河水化学溶解石灰岩等可溶性矿物。速记技巧： “solution” 像糖溶于茶一样把岩石溶解掉。
2. River Transport Processes | 河流搬运方式
Rivers carry their load in four distinct ways. Remember that all involve movement, but the size of the material and the energy decide which method dominates.
河流以四种不同的方式搬运物质。它们都涉及运动，但搬运方式取决于物质大小和水流能量。
Traction – Large boulders roll or slide along the river bed. Memory tip: Think of a ‘tractor’ pulling heavy rocks.
拖曳 – 大石块沿河床滚动或滑动。速记技巧： 联想到 “tractor” 拖拉机拖拽重物。
Saltation – Small pebbles bounce along the bed in a hopping motion. Memory tip: ‘Saltation’ comes from the Latin ‘to jump’ — imagine a skipping stone.
跃移 – 小卵石在河床上跳跃前进。速记技巧： “saltation” 源自拉丁语 “跳跃” — 如同打水漂的石子。
Suspension – Fine, light particles like silt are carried within the water column. Memory tip: Particles are ‘suspended’ like dust motes in a sunbeam.
悬浮 – 粉砂等细小轻质颗粒悬浮在水体中搬运。速记技巧： 颗粒 “悬浮” 犹如阳光中的尘埃。
Solution (transport) – Dissolved minerals are invisibly transported in the water. Memory tip: You cannot see salt in seawater, yet it is carried in ‘solution’.
溶解质搬运 – 溶解的矿物随水流无形携带。速记技巧： 你看不见海水里的盐，但它正是以 “溶液” 方式被输送。
3. River Landforms | 河流地貌
Erosion and deposition create distinctive landforms along a river’s course. Each form tells a story of the river’s energy and the rock it cuts through.
侵蚀与沉积在河道沿线塑造出独特的地貌。每一种形态都诉说着河流能量和岩石差异的故事。
V-shaped valley with interlocking spurs – In the upper course, vertical erosion dominates, creating steep sides and spurs that interlock like the teeth of a zip. Memory tip: Picture a zip being closed: the spurs fit together.
V 形谷与交错山嘴 – 上游以下蚀为主，形成陡坡，山嘴像拉链齿一样交错。速记技巧： 想象拉链合上的样子，山嘴正好相互嵌合。
Waterfall and gorge – A band of hard rock overlying soft rock creates a drop; the plunge pool undercutting leads to collapse and a gorge downstream. Memory tip: ‘Hard over soft’ is the recipe for a waterfall.
瀑布与峡谷 – 硬岩覆于软岩之上形成跌水，跌水潭淘蚀导致坍塌并形成下游峡谷。速记技巧： “硬盖着软” 就是瀑布形成的秘诀。
Meander – A sweeping bend on the middle course; flow is fastest on the outside, causing cut banks and slip-off slopes on the inside. Memory tip: Meander curves like a snake; ‘mean’ water is fastest outside!
曲流 – 中游的大弯道；外侧流速最快，形成凹岸侵蚀、凸岸堆积。速记技巧： 曲流像蛇一样蜿蜒；水流在“难缠”的外侧最深最快！
Ox-bow lake – When a meander loop is cut off by the river, a crescent-shaped lake remains. Memory tip: It looks like an ox yoke, hence ‘ox-bow’.
牛轭湖 – 曲流颈被截断后留下的月牙形湖泊。速记技巧： 形状像牛轭，故名 “牛轭湖”。
4. Coastal Processes | 海岸作用过程
Waves are the engines of change on coastlines. Understanding swash, backwash and longshore drift will help you explain almost any coastal landform.
波浪是海岸变化的主要动力。弄懂冲流、回流和沿岸漂沙，几乎就能解释所有海岸地貌的形成。
Longshore drift – Sediment is moved along the coast by waves approaching at an angle; swash carries material diagonally up the beach, backwash drags it straight down. Memory tip: This zigzag ‘drift’ follows the ‘long shore’.
沿岸漂沙 – 波浪斜向冲击海岸，冲流将沙石斜向推上海滩，回流则垂直带回，形成锯齿状搬运。速记技巧： 这种蜿蜒的 “漂移” 沿着 “长岸” 前进。
Swash – The turbulent rush of water up the beach after a wave breaks. Memory tip: ‘Swash’ sounds like the water ‘swishing’ onto the sand.
冲流 – 波浪破碎后冲击上沙滩的水流。速记技巧： “swash” 听起来像水 “哗啦” 冲上沙子。
Backwash – The returning flow of water down the beach, carrying some material back. Memory tip: Simply the ‘back’ flow — it washes back.
回流 – 顺着海滩退回去的水流，会带走部分物质。速记技巧： 简单理解为 “回” 流 — 水往回洗。
Destructive wave – High energy, plunging wave with a strong backwash that erodes the coast. Memory tip: Its backwash is dominant, ‘destroying’ the beach.
破坏性波浪 – 高能陡卷浪，回流强劲，强烈侵蚀海岸。速记技巧： 其回流占主导，不断 “破坏” 海滩。
5. Coastal Landforms | 海岸地貌
Erosion and deposition build a sequence of dramatic coastal features. Recognising this continuum will strengthen your map and photo-interpretation skills.
侵蚀与沉积塑造出一系列壮观的海岸景观。记住这些形态的连续变化能提高你的读图和照片分析能力。
Cliffs and wave-cut platform – Continuous undercutting by waves creates a notch, leading to collapse and a retreating cliff, leaving a gently sloping rocky platform at its base. Memory tip: The platform is literally ‘cut by waves’.
悬崖与浪蚀平台 – 波浪持续淘蚀形成凹槽，导致崖壁崩塌后退，留下缓坡状的岩石平台。速记技巧： 平台就是被波浪 “切” 出来的。
Headlands and bays – Alternating bands of hard and soft rock; soft rock erodes faster forming bays, while hard rock juts out as headlands. Memory tip: Hard headland, soft bay — remember H and S.
岬角与海湾 – 硬软岩交替排列；软岩侵蚀快形成海湾，硬岩突出成为岬角。速记技巧： 硬为岬，软为湾，记住 H 和 S。
Cave, arch, stack and stump – Erosion widens a crack into a cave, then an arch, which collapses leaving a stack, further worn into a stump. Memory tip: This classic sequence goes C-A-S-S: cave, arch, stack, stump.
海蚀洞、海蚀拱、海蚀柱、海蚀残丘 – 侵蚀将裂缝扩大成洞，再成拱，拱倒塌后留下海蚀柱，继续侵蚀变成残丘。速记技巧： 经典顺序洞-拱-柱-残丘，简记 C-A-S-S。
Spit – A narrow ridge of sand or shingle extending from the coast into the sea, formed by longshore drift. Memory tip: A spit ‘spits’ out from the land — it is attached at one end only.
沙嘴 – 由沿岸漂沙形成，从海岸向海延伸出的狭长沙砾脊。速记技巧： 沙嘴像从陆地 “吐” 出，只在一端与陆相连。
6. Urbanisation | 城市化
Urban areas are growing worldwide. These terms describe the movement of people and the changes in towns and cities.
全球城市地区不断扩大。以下术语描述了人口流动以及城镇与城市的变化。
Urbanisation – The increase in the proportion of people living in urban areas compared to rural areas. Memory tip: ‘Urban’ + ‘-isation’ = process of becoming urban.
城市化 – 城镇人口比例上升的过程。速记技巧： “urban” + “-isation” 即变为城镇的进程。
Megacity – A city with a population exceeding 10 million inhabitants. Memory tip: ‘Mega’ means huge — think of a mega-sized city.
超级城市 – 人口超过 1000 万的城市。速记技巧： “mega” 表示超大，超级大城市一目了然。
Suburbanisation – The outward spread of a city into the surrounding countryside, often creating residential suburbs. Memory tip: ‘Sub’ means below or outside; people move to the suburbs.
郊区化 – 城市向外扩张至郊区，通常形成居住性郊区。速记技巧： “sub” 意为下方或外部，人们迁往郊区。
Counter-urbanisation – The movement of people from urban areas back to rural areas, often for a better quality of life. Memory tip: ‘Counter’ means against urbanisation — reversing the trend.
逆城市化 – 人口从城市回流到乡村的现象，通常为追求更好的生活质量。速记技巧： “counter” 表示相反，即逆着城市化的方向。
7. Population Dynamics | 人口动态
Demographic data helps us understand change. Learn the core measures and the classic model that charts population transition.
人口数据帮助我们理解社会变化。掌握基础指标和描绘人口转变的经典模型至关重要。
Birth rate – The number of live births per 1000 people per year. Memory tip: It is a ‘rate’, so always per 1000.
出生率 – 每年每千人中的活产婴儿数。速记技巧： 这是 “率”，总是以每千人计。
Death rate – The number of deaths per 1000 people per year. Memory tip: The mirror of birth rate; together they decide natural change.
死亡率 – 每年每千人中的死亡人数。速记技巧： 与出生率镜像对应，两者共同决定自然变动。
Natural increase – The difference between birth rate and death rate, expressed as a percentage. Memory tip: If births outnumber deaths, population ‘naturally’ increases.
自然增长率 – 出生率减去死亡率，以百分比表示。速记技巧： 只要出生超过死亡，人口自然就 “增加”。
Demographic Transition Model (DTM) – A model showing the stages of population change as a country develops, linking birth and death rates. Memory tip: DTM has five stages; remember the UK experience: high stationary → early expanding → late expanding → low stationary → decline.
人口转变模型 – 展示一国随着发展而经历的人口变化阶段，连接出生率与死亡率。速记技巧： DTM 分五阶段，联想到英国经历：高稳定 → 早期扩张 → 后期扩张 → 低稳定 → 衰退。
8. Weather and Climate | 天气与气候
Rainfall does not fall the same way everywhere. Knowing the triggers for precipitation will help you explain climate graphs and synoptic charts.
降雨并非在各地都以同样方式发生。了解降水的触发原因，有助于解释气候图和天气图。
Relief rainfall – Moist air is forced to rise over hills, cools, condenses and rains on the windward side. Memory tip: Relief refers to the shape of the land; hills ‘relieve’ the air of moisture.
地形雨 – 湿润气流被迫抬升翻越山丘，冷却凝结，在迎风坡降雨。速记技巧： “relief” 指地形，山丘来 “解除” 空气中的水汽。
Convectional rainfall – The sun heats the ground, warm air rises rapidly, cools and produces heavy showers. Memory tip: ‘Convection’ currents drive this rain — think of hot air rising from a radiator.
对流雨 – 日照加热地面，暖空气迅速上升、冷却，形成强对流阵雨。速记技巧： “对流” 气流驱动此雨 — 想象暖气片上升的热气流。
Frontal rainfall – Warm air is forced to rise over a denser cold air mass along a front. Memory tip: Two air masses meet at a ‘front’, like a battle line.
锋面雨 – 暖空气沿锋面被迫爬升到冷空气之上，形成降雨。速记技巧： 两个气团在 “锋面” 相遇，宛如作战前线。
Anticyclone – A high-pressure system with descending air, bringing stable, dry weather and clear skies. Memory tip: ‘Anti-cyclone’ means opposite to a spinning cyclone — air sinks, and umbrellas can stay home.
反气旋 – 高压系统，空气下沉，带来稳定干燥的天气和晴朗天空。速记技巧： “anti-cyclone” 与气旋相反，空气下沉，不需带伞。
9. Tectonic Hazards | 构造灾害
Plate movements trigger powerful hazards. Grasping the key terms allows you to explain earthquake and volcanic events with confidence.
板块运动引发剧烈灾害。掌握关键术语能让你自信地解释地震和火山事件。
Focus (hypocentre) – The actual point inside the Earth where an earthquake originates. Memory tip: The ‘focus’ is where the fault slip ‘focuses’ energy.
震源 – 地球内部地震发生的实际位置。速记技巧： “focus” 就是断层滑动 “聚焦” 能量的地方。
Epicentre – The point on the Earth’s surface directly above the focus, often suffering the strongest shaking. Memory tip: ‘Epi-‘ means upon; the epicentre sits upon the focus.
震中 – 震源正上方的地表点，
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