Year 9 CCEA Geography: Core Knowledge Summary | Year 9 CCEA 地理：核心知识点梳理

📚 Year 9 CCEA Geography: Core Knowledge Summary | Year 9 CCEA 地理：核心知识点梳理

This guide brings together the most important geographical concepts and case studies covered in Year 9 of the CCEA specification. Use it to review map skills, physical processes, human environments and key issues such as sustainability.

本指南汇集了 CCEA Year 9 地理课程中最重要的概念与案例。用它来复习地图技能、自然过程、人文环境以及可持续性等关键议题。

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1. Map Skills | 地图技能

Ordnance Survey maps use a variety of symbols to show natural and human features, such as woodland, footpaths and churches. The key explains these symbols.

地形测量图使用各种符号来表示自然和人文特征，如林地、步道和教堂。图例解释了这些符号。

Four‑figure grid references (e.g. 1522) locate a grid square, while six‑figure grid references (e.g. 153226) give a precise point within the square.

四位网格参考（例如 1522）定位一个方格，而六位网格参考（例如 153226）给出方格内的精确位置。

Compass directions are used to describe location and movement. The eight main points are north, south, east, west, northeast, northwest, southeast and southwest.

罗盘方向用于描述位置和移动。八个主要方向是北、南、东、西、东北、西北、东南和西南。

Scale can be shown as a statement (1 cm represents 1 km), a ratio (1:50 000) or a linear scale. Contour lines join points of equal height, showing relief; tight contours indicate a steep slope.

比例尺可用文字（1 厘米代表 1 公里）、比例式（1:50 000）或直线比例尺表示。等高线连接海拔高度相同的点，展示地形起伏；密集的等高线表示陡坡。

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2. Weather and Climate | 天气与气候

Weather is the day‑to‑day condition of the atmosphere, while climate is the average weather over a long period (usually 30 years).

天气是大气的日常状况，而气候是一个长时期（通常 30 年）内的平均天气。

Key elements measured include temperature (°C), precipitation (millimetres), wind speed and direction, air pressure (millibars), humidity and cloud cover.

测量的关键要素包括气温（°C）、降水量（毫米）、风速与风向、气压（毫巴）、湿度和云量。

A Stevenson screen houses thermometers and hygrometers to ensure accurate readings, while a rain gauge collects precipitation and an anemometer records wind speed.

百叶箱内放置温度计和湿度计以确保读数准确，雨量计收集降水，风速计记录风速。

Climate graphs combine a line of monthly temperature with bars of precipitation. They help to identify patterns such as seasonal rainfall and temperature range.

气候图将月均温度曲线与降水量柱状图结合在一起，有助于识别季节性降水和气温较差等规律。

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3. The UK Climate and Microclimates | 英国气候与微气候

The UK has a cool temperate maritime climate, influenced by the North Atlantic Drift. Winters are mild, summers are cool and rainfall is fairly even throughout the year.

英国属于凉爽的温带海洋性气候，受北大西洋暖流影响。冬季温和，夏季凉爽，全年降水分布较为均匀。

Factors affecting local climate include latitude, altitude, distance from the sea, prevailing winds and ocean currents. Higher altitude sites are cooler and wetter.

影响地方气候的因素有纬度、海拔高度、距海远近、盛行风和洋流。海拔较高的地方更冷、更湿。

A microclimate is the climate of a very small area, such as a woodland floor or the south‑facing wall of a building. Buildings, vegetation and relief can create distinct local conditions.

微气候是指极小区域内的气候，如林地地面或建筑物的南墙。建筑物、植被和地形可形成独特的局地条件。

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4. River Processes and Landforms | 河流过程与地貌

A drainage basin is the area of land drained by a river and its tributaries. The edge is called the watershed.

流域是由一条河流及其支流排水的陆地区域，边界称为分水岭。

Erosion processes include hydraulic action (force of water), abrasion (rocks scraping the bed), attrition (rocks colliding and smoothing) and solution (chemical dissolving).

侵蚀过程包括水力作用（水流的冲击力）、磨蚀（岩屑刮磨河床）、磨损（石块相互碰撞变圆）和溶蚀（化学溶解）。

Rivers transport material by traction (rolling large boulders), saltation (small stones bouncing), suspension (fine particles carried) and solution (dissolved minerals).

河流通过推运（大石块滚动）、跃移（小石子跳跃）、悬移（细粒物质悬浮）和溶运（溶解矿物）来搬运物质。

Landforms in the upper course include V‑shaped valleys, interlocking spurs and waterfalls. A waterfall forms where hard rock overlies soft rock; undercutting creates a plunge pool and a gorge may retreat upstream.

上游地貌包括 V 形谷、交错山嘴和瀑布。瀑布形成于硬岩覆盖软岩的地方；掏蚀作用形成壶穴，峡谷可能向上游后退。

In the middle and lower course, meanders develop, and an ox‑bow lake can form when a meander is cut off. Floodplains and levees result from repeated flooding and deposition.

在中下游，曲流发育，曲流被截断可形成牛轭湖。反复的洪水和沉积作用形成了泛滥平原和天然堤。

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5. Coastal Processes and Landforms | 海岸过程与地貌

Waves are created by wind. Constructive waves have a strong swash and weak backwash, building up beaches; destructive waves have a weak swash and strong backwash, removing material.

波浪由风形成。建设性波浪冲流强、回流弱，堆积海滩；破坏性波浪冲流弱、回流强，剥蚀物质。

Coastal erosion processes are similar to river erosion, with the addition of wave pounding and corrosion. Key factors include rock type, wave energy and the shape of the coastline.

海岸侵蚀过程与河流相似，增加了波浪冲击和磨蚀。关键因素包括岩石类型、波浪能量和海岸线形状。

Landforms created by erosion: cliffs and wave‑cut platforms form where undercutting causes collapse. Caves, arches, stacks and stumps evolve on headlands due to differential erosion.

侵蚀形成的地貌：悬崖和海蚀平台是由于掏蚀导致坍塌而形成的。在岬角上，差异侵蚀形成海蚀洞、海蚀拱、海蚀柱和海蚀残柱。

Depositional landforms include beaches, spits and bars. Longshore drift moves sediment along the coast, and when the sediment is deposited, these features build up.

堆积地貌包括海滩、沙嘴和湾坝。沿岸漂移使泥沙沿海岸移动，泥沙沉积后便形成了这些特征。

Coastal management uses hard engineering (sea walls, groynes, rock armour) and soft engineering (beach nourishment, managed retreat). Each option has economic and environmental costs.

海岸管理采用硬工程（海堤、丁坝、防波石）和软工程（人工养滩、有管理的后退）。每种方案都有经济和环境成本。

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6. Population Distribution and Change | 人口分布与变化

Population distribution describes where people live, while population density measures the number of people per square kilometre. Dense populations are often found in lowland areas with good resources.

人口分布描述人们居住的地方，而人口密度衡量每平方公里的人口数。人口稠密区通常位于资源良好的低地地区。

Demographic indicators include birth rate, death rate, natural increase (birth rate − death rate), and net migration (immigration − emigration).

人口指标包括出生率、死亡率、自然增长（出生率 − 死亡率）和净迁移（移入 − 移出）。

Population pyramids show the age and sex structure of a population. A wide base suggests a high birth rate; a narrow top indicates a lower life expectancy.

人口金字塔显示人口的年龄和性别结构。宽底部表明高出生率；窄顶部表明预期寿命较低。

Push factors (such as war, drought, unemployment) drive people away from an area, while pull factors (better jobs, safety, education) attract people to a new location.

推力因素（如战争、干旱、失业）促使人们离开某地，而拉力因素（更好的工作、安全、教育）吸引人们来到新地点。

The demographic transition model describes how birth and death rates change as a country develops. In Stage 2, death rates fall; in Stage 3, birth rates begin to decline.

人口转变模型描述了一个国家发展过程中出生率和死亡率的变化。第二阶段死亡率下降；第三阶段出生率开始下降。

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7. Settlement Patterns and Urbanisation | 聚落形态与城市化

Settlement sites depend on factors such as water supply, defence, flat land and access to resources. The situation is the settlement’s location in relation to its surroundings.

聚落选址取决于供水、防御、平坦的土地和资源获取等因素。位置是指聚落相对于周围环境的地点。

Settlement shape varies: dispersed settlements are scattered, linear settlements follow a road or river, and nucleated settlements cluster around a central point.

聚落形态各异：分散型聚落零散分布，线型聚落沿道路或河流分布，集核型聚落围绕一个中心点集中。

A settlement hierarchy arranges places by size and services: isolated dwelling, hamlet, village, town, city. Higher‑order centres have more specialised services.

聚落等级按规模和功能将地点排列：独立住所、小村庄、村庄、镇、城市。高等级中心拥有更多专业化服务。

Urbanisation is the growth in the proportion of people living in towns and cities. In many MEDCs urbanisation occurred during the Industrial Revolution; rapid urbanisation is now a feature of LEDCs.

城市化是指居住在城市和城镇的人口比例增加的过程。许多发达国家的城市化发生在工业革命时期；快速城市化现已成为发展中国家的特征。

Urban models such as the Burgess concentric‑ring model show how different land‑use zones (CBD, inner city, suburbs) develop. Issues include traffic, pollution, inequality and urban sprawl.

城市模型，如伯吉斯同心圆模型，显示了不同的土地利用区（中央商务区、内城区、郊区）是如何发展的。问题包括交通、污染、不平等和城市蔓延。

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8. Economic Activity and Globalisation | 经济活动与全球化

Economic activities are grouped into sectors: primary (extracting raw materials), secondary (manufacturing), tertiary (services) and quaternary (knowledge‑based industries).

经济活动分为几个部门：第一产业（获取原材料）、第二产业（制造业）、第三产业（服务业）和第四产业（知识型产业）。

The location of an industry depends on factors such as raw materials, labour, transport, market and government incentives. Heavy industry traditionally needed coal or iron ore.

工业的区位选择取决于原材料、劳动力、交通、市场和政府激励等因素。重工业传统上需要煤炭或铁矿石。

Globalisation is the increasing interconnection of countries through trade, investment, culture and technology. Containerisation and cheap transport have enabled global supply chains.

全球化是通过贸易、投资、文化和技术使各国联系日益紧密的过程。集装箱化与廉价运输推动了全球供应链的发展。

Multinational companies (MNCs) operate in several countries. They can bring jobs and investment but may also exploit workers and resources, creating uneven development.

跨国公司（MNCs）在多个国家经营。它们可以带来就业和投资，但也可能剥削工人和资源，造成发展不平衡。

Fair trade schemes guarantee producers in LEDCs a fair price, helping to reduce poverty and promote sustainable farming practices.

公平贸易计划确保发展中国家生产者获得公平价格，有助于减少贫困并推广可持续农业实践。

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9. Environmental Issues and Sustainability | 环境问题与可持续发展

Climate change is mainly driven by an enhanced greenhouse effect. Burning fossil fuels releases carbon dioxide (CO₂), methane (CH₄) comes from agriculture and landfill, and deforestation reduces CO₂ absorption.

气候变化主要由增强的温室效应驱动。燃烧化石燃料释放二氧化碳（CO₂），农业和垃圾填埋产生甲烷（CH₄），森林砍伐减少了 CO₂ 的吸收。

Global impacts include rising sea levels, more extreme weather events, melting ice caps and threats to ecosystems. Local actions, such as coastal flooding, are already visible in the UK and Ireland.

全球影响包括海平面上升、更多极端天气事件、冰盖融化和生态系统受到威胁。局部影响，如沿海洪水，已在英国和爱尔兰显现。

Renewable energy sources such as solar, wind, tidal and hydroelectric power produce fewer greenhouse gases than fossil fuels. Northern Ireland has invested in onshore and offshore wind.

太阳能、风能、潮汐能和水力发电等可再生能源产生的温室气体比化石燃料少。北爱尔兰已投资陆上和海上风电。

Sustainability means meeting present needs without compromising the ability of future generations to meet theirs. Reducing, reusing and recycling waste supports a circular economy.

可持续发展意味着在满足当代人需求的同时，不损害后代满足其需求的能力。减少使用、重复使用和回收废物有助于循环经济。

Conservation projects, such as tree planting and protecting peat bogs, help store carbon and maintain biodiversity. Individual choices – eating less meat, using public transport – also matter.

植树和保护泥炭沼泽等保护项目有助于储存碳并维持生物多样性。个人选择——少吃肉、使用公共交通——同样重要。

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