📚 Year 11 OCR Geography: Key Terms Memory Guide | Year 11 OCR 地理：词汇术语速记指南
Struggling to remember all the geographical terminology for your OCR GCSE? You are not alone. From abrasion to urban sprawl, the volume of key terms can feel overwhelming. This guide breaks down the trickiest vocabulary into memorable chunks, offers clever mnemonics, and clarifies commonly confused pairs. Whether you are tackling physical landscapes or human geography, mastering these terms will sharpen your exam answers and boost your confidence.
为 OCR GCSE 地理考试费力地记住所有术语？你并不孤单。从 "abrasion"（磨蚀）到 "urban sprawl"（城市扩张），关键术语的数量让人应接不暇。本指南将最棘手的词汇分解成容易记忆的片段，提供巧妙的记忆法，并厘清常见的混淆词对。无论你正在攻克自然地理还是人文地理，掌握这些术语都将使你的考试答案更加精准，并增强你的信心。
1. Coastal Erosion Processes | 海岸侵蚀过程
Hydraulic action is the force of water compressing air into cracks in rocks, causing them to weaken and break apart. Imagine a water cannon smashing into a cliff face.
水力作用是指水流的力量将空气压入岩石裂缝，导致岩石松动并崩解。想象一下高压水炮冲击崖壁的情景。
Abrasion (sometimes called corrasion) occurs when pebbles and sediment carried by waves grind against the cliff, like sandpaper smoothing wood.
磨蚀（有时也称刻蚀）是指波浪携带的卵石和沉积物摩擦悬崖，就像砂纸打磨木头一样。
Attrition is the process where rocks and pebbles carried by the waves knock against each other, gradually becoming smaller, rounder, and smoother.
磨圆作用是波浪搬运的岩石和卵石相互碰撞，逐渐变得更小、更圆、更光滑的过程。
Solution (corrosion) involves the chemical dissolving of alkaline rocks like limestone by slightly acidic seawater. It leaves no visible sediment.
溶蚀（腐蚀）是指像石灰岩这样的碱性岩石被微酸性海水化学溶解。它不会留下可见的沉积物。
- Memory tip: HAAS – Hydraulic Action, Abrasion, Attrition, Solution. Think of waves laughing "HAAS" as they crash.
- 记忆提示：HAAS – 水力作用、磨蚀、磨圆作用、溶蚀。想象波浪拍打时发出 "HAAS" 的笑声。
2. Coastal Transportation and Deposition | 海岸搬运与沉积
Longshore drift is the zigzag movement of sediment along a coastline. Waves approach the beach at an angle (swash) and return straight back down the beach (backwash) due to gravity. This moves material sideways.
沿岸漂移是沉积物沿海岸线呈之字形运动的过程。波浪以一定角度冲向海滩（上冲流），受重力影响沿直线退回海中（回流），使物质侧向移动。
Traction is the rolling or dragging of large boulders along the seabed. Saltation is the bouncing of smaller pebbles that are too heavy to be suspended. Suspension lifts fine, light particles like silt into the water column. Solution (again) carries dissolved minerals.
拖曳搬运是指大岩块在海底翻滚或拖拽；跃移是指较重的卵石在水流中跳跃前进；悬浮搬运使细小的淤泥等轻质颗粒升入水体；溶移（同样）搬运溶解的矿物质。
- Deposition happens when waves lose energy and can no longer carry their load, often forming beaches, spits, and bars.
- 沉积发生在波浪能量减弱、无法再搬运载荷时，常常形成海滩、沙嘴和滨外沙坝。
3. River Erosion Landforms | 河流侵蚀地貌
V-shaped valleys form in the upper course where vertical erosion dominates. The river cuts downwards, and weathered material from the valley sides falls into the river, creating steep valley sides.
V 形谷形成于河流上游，以垂直侵蚀为主。河流向下深切，谷壁风化物质落入河中，形成陡峭的谷坡。
Interlocking spurs are ridges of harder rock that project into the valley, forcing the river to wind around them. They interlock like the teeth of a zip.
交错山嘴是突入谷地的较硬岩石山脊，迫使河流绕过它们，像拉链的齿一样相互交错。
Waterfalls occur where a band of hard rock lies over soft rock. The soft rock is eroded more quickly, undercutting the hard rock. Eventually the hard rock collapses under its own weight, and the process repeats, causing the waterfall to retreat upstream, leaving behind a steep-sided gorge.
瀑布形成于硬岩层覆盖在软岩层之上的地方。软岩层被较快侵蚀，掏空了硬岩层的底部。最终硬岩层因自身重量而崩塌，过程往复，导致瀑布向上游后退，留下陡峭的峡谷。
4. River Deposition and Meanders | 河流沉积与曲流
Meanders are bends in a river's course. The fastest flow (thalweg) swings to the outside of the bend, eroding the bank to form a steep river cliff. On the inside, slower flow encourages deposition, building up a gentle slip-off slope.
曲流是河道中的弯曲段。最快水流（深泓线）摆向弯道外侧，侵蚀河岸形成陡峭的凹岸。内侧水流较缓，有利沉积，堆积成和缓的凸岸。
Oxbow lakes are formed when a meander becomes so pronounced that the neck between two bends is cut through during a flood. The old meander is sealed off by deposition, leaving a crescent-shaped lake.
牛轭湖形成于曲流变得极度弯曲，洪水期间两个弯道之间的曲流颈被切穿。废弃的曲流被沉积物封闭，留下新月形的湖泊。
Levees are natural raised banks along a river channel. Repeated flooding deposits coarser material close to the channel, building up these ridges.
天然堤是沿河道形成的天然高地岸堤。反复的洪水过程将较粗的物质沉积在河道附近，逐渐垒高这些堤脊。
5. Weathering Types: Don't Mix Them Up! | 风化类型：别搞混了！
Weathering is the breakdown of rocks in place, without any movement. Erosion requires movement of material. This distinction is crucial in exam answers.
风化是指岩石在原位发生崩解，不涉及物质移动。侵蚀则需要物质的运移。这一区别在考试答案中至关重要。
Mechanical (physical) weathering: Freeze-thaw weathering happens when water enters cracks, freezes, expands by about 9%, and exerts pressure. Repeated cycles split rocks apart.
机械（物理）风化：冻融风化是指水进入裂缝，冻结时体积膨胀约 9%，产生压力。反复冻融将岩石崩裂。
Chemical weathering: Carbonation dissolves limestone and chalk. Rainwater absorbs CO₂, forming carbonic acid, which reacts with calcium carbonate to produce soluble calcium hydrogencarbonate.
化学风化：碳酸化作用溶蚀石灰岩和白垩。雨水吸收二氧化碳形成碳酸，与碳酸钙反应生成可溶的碳酸氢钙。
Biological weathering: Plant roots grow into cracks and split rocks; animals burrow and expose rock surfaces.
生物风化：植物根系长入裂缝并撑开岩石；动物挖掘洞穴使岩石表面暴露。
6. Tectonic Hazards: Plate Boundaries | 构造灾害：板块边界
At constructive (divergent) plate boundaries, plates move apart. Magma rises to fill the gap, creating new crust. This forms mid-ocean ridges and shield volcanoes. Example: Mid-Atlantic Ridge.
在建设性（离散型）板块边界，板块相互分离。岩浆上涌填充裂缝，形成新地壳。此处形成洋中脊和盾状火山。例：大西洋中脊。
At destructive (convergent) boundaries, oceanic crust subducts under continental crust because it is denser. Ocean trenches and composite volcanoes with explosive eruptions occur here. Example: Pacific Ring of Fire.
在破坏性（汇聚型）边界，大洋地壳因为密度更大而俯冲到大陆地壳之下。此处形成海沟和具有爆发性喷发的复式火山。例：环太平洋火山带。
Conservative (transform) boundaries involve plates sliding past each other. Friction builds up until it is suddenly released as an earthquake. No crust is created or destroyed. Example: San Andreas Fault.
保守型（转换型）边界指板块相互滑过。摩擦力积累直至突然释放引发地震。地壳既不新生也不消亡。例：圣安德烈亚斯断层。
Collision boundaries form when two continental plates meet. Both are too buoyant to subduct, so they crumple upwards, forming fold mountains. Example: Himalayas.
碰撞边界形成于两个大陆板块相遇时。两者都太轻而无法俯冲，因此向上褶皱形成褶皱山脉。例：喜马拉雅山脉。
7. Urbanisation and Counter-urbanisation | 城市化与逆城市化
Urbanisation is the growth in the proportion of a country's population living in urban areas. It is driven by rural-to-urban migration and natural increase.
城市化是指一个国家居住在城镇地区的人口比例不断上升的过程，由乡城迁移和城市人口自然增长驱动。
Suburbanisation is the spread of people and businesses from the inner city into the suburbs, often enabled by improved transport.
郊区化是指人口和企业从内城向郊区扩展，常因交通改善而成为可能。
Counter-urbanisation is the movement of people out of cities into rural areas, often seeking better quality of life, lower house prices, or remote working opportunities. It leads to growth of commuter villages.
逆城市化是指人口迁出城市进入乡村地区，通常是为了寻求更好的生活质量、更低的房价或远程工作机会。这导致通勤村庄的扩张。
Re-urbanisation is the process of regenerating declining inner-city areas, attracting people back with new homes, services, and employment.
再城市化是对衰败的内城进行更新的过程，通过新建住房、服务和就业机会吸引人口回流。
8. Development Indicators: HDI vs. GNI | 发展指标：HDI 与 GNI
Development is measured using many indicators. Gross National Income (GNI) per capita is the total income of a country divided by its population. It hides inequalities.
发展程度通过多种指标衡量。人均国民总收入（GNI）是一个国家的总收入除以其人口数。它掩盖了贫富差距。
The Human Development Index (HDI) combines three dimensions: life expectancy at birth, mean years of schooling and expected years of schooling, and GNI per capita. It gives a broader view of wellbeing than income alone.
人类发展指数（HDI）综合了三个维度：出生时预期寿命、平均受教育年限和预期受教育年限、以及人均国民总收入。它比单一的收入指标更全面地反映福祉。
Other useful terms: Birth rate (live births per 1,000 per year); Death rate (deaths per 1,000 per year); Infant mortality (deaths of under-1s per 1,000 live births); Literacy rate (percentage of adults able to read and write).
其他有用术语：出生率（每年每千人活产数）；死亡率（每年每千人死亡数）；婴儿死亡率（每千名活产婴儿中一岁前死亡数）；识字率（能够读写的成人百分比）。
9. Weather and Climate: Key Differences | 天气与气候：关键区别
Weather is the day-to-day state of the atmosphere, including temperature, precipitation, and wind. Climate is the average weather conditions over a long period, typically 30 years.
天气是指大气的逐日状态，包括温度、降水和风。气候是长时期内（通常为 30 年）天气状况的平均统计。
Air masses are large bodies of air with similar temperature and humidity. The UK is affected by Polar maritime (cold, wet), Arctic maritime (very cold), Tropical maritime (mild, wet), Tropical continental (hot, dry), and Polar continental (cold, dry) air masses.
气团是具有相似温度和湿度的大尺度空气体。英国受到极地海洋性（冷湿）、北极海洋性（非常冷）、热带海洋性（温和湿润）、热带大陆性（干热）和极地大陆性（干冷）气团的影响。
Depressions are low-pressure systems that bring cloud and rain. Anticyclones are high-pressure systems associated with clear skies and settled weather.
低压系统（气旋）带来云和雨。高压系统（反气旋）带来晴朗天空和稳定的天气。
10. Ecosystems: Biotic and Abiotic | 生态系统：生物与非生物
An ecosystem is a community of living organisms interacting with each other and their non-living environment. Biotic components include plants, animals, and bacteria. Abiotic components are physical factors like climate, soil, and water.
生态系统是生物群落与其非生物环境相互作用构成的整体。生物成分包括植物、动物和细菌。非生物成分指气候、土壤和水等物理因素。
y consumer → tertiary consumer. Decomposers break down dead material, recycling nutrients.
食物链展示能量流动：生产者 → 初级消费者 → 次级消费者 → 三级消费者。分解者分解死物质，使营养再循环。
A biome is a global-scale ecosystem characterised by its climate and dominant vegetation, such as tropical rainforest or tundra.
生物群系是全球尺度的生态系统，以其气候和优势植被为特征，例如热带雨林或苔原。
Nutrient cycling describes the movement and exchange of nutrients between the biomass, litter, and soil. In tropical rainforests, the cycle is rapid; in tundra, it is very slow.
营养循环描述养分在生物量、枯枝落叶层和土壤之间的移动与交换。在热带雨林中循环很快；在苔原中则非常缓慢。
11. Resource Management: Food, Water, Energy | 资源管理：食物、水、能源
Food security exists when all people, at all times, have physical and economic access to sufficient, safe, and nutritious food. The UK imports about 40% of its food, making it food insecure in global terms.
粮食安全是指所有人在任何时候都能在物质上和经济上获得充足、安全和有营养的食物。英国约 40% 的食物依靠进口，因此在全球范围内属于粮食不安全。
Water surplus means supply exceeds demand; water deficit means demand exceeds supply. Water stress occurs when annual water supplies drop below 1,700 m³ per person. Water transfer schemes move water from areas of surplus to deficit.
水资源盈余指供应超过需求；水赤字是指需求超过供应。当年人均供水量低于 1700 立方米时，出现水资源压力。调水工程将水资源从盈余区输送到赤字区。
Energy mix refers to the combination of different energy sources used in a country. The UK’s energy mix has shifted from coal to a greater reliance on natural gas, renewables (wind, solar), and nuclear power.
能源结构是指一个国家使用的各种能源的组合。英国的能源结构已从煤炭转向更多地依赖天然气、可再生能源（风能、太阳能）和核能。
Non-renewable resources (fossil fuels) are finite; renewable resources can be replenished naturally. Fracking is the extraction of shale gas by injecting high-pressure fluid into shale rock.
非可再生资源（化石燃料）是有限的；可再生资源可以自然补充。水力压裂法是通过向页岩层注入高压液体来提取页岩气。
12. Fieldwork Terminology | 野外考察术语
Primary data is information you collect yourself during fieldwork (e.g., pebble size measurements, questionnaires). Secondary data is information collected by someone else (e.g., census data, maps).
一手数据是你在野外考察期间自己收集的信息（如卵石大小测量、问卷调查）。二手数据是他人收集的信息（如人口普查数据、地图）。
Quantitative data involves numbers (e.g., longshore drift distance, traffic counts). Qualitative data is descriptive and non-numerical (e.g., interviews, field sketches).
定量数据涉及数字（如沿岸漂移距离、交通计数）。定性数据是描述性的、非数字的（如访谈、实地素描）。
Sampling strategies: Random sampling ensures every member of a population has an equal chance of being selected. Systematic sampling selects subjects at regular intervals. Stratified sampling divides the population into groups and samples within each group.
采样策略：随机采样确保总体中每个成员被选中的概率相等。系统采样按照固定间隔选择对象。分层采样将总体分成若干组群，然后在各组群内进行采样。
Risk assessment is the identification of potential hazards and putting in place measures to reduce risk. Always mention this in your fieldwork write-up.
风险评估是识别潜在危险并采取措施降低风险的过程。在你的野外考察报告里一定要提到这一点。
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