Core Knowledge Summary for Year 7 CCEA Economics | 七年级CCEA经济学核心知识点梳理

📚 Core Knowledge Summary for Year 7 CCEA Economics | 七年级CCEA经济学核心知识点梳理

Welcome to your Year 7 Economics revision guide for the CCEA curriculum. Economics helps us understand how people make choices, how businesses work, and how money flows in our society. This article brings together the most important concepts you will study, from scarcity and supply to budgeting and the environment. Use it to review each topic and check your understanding.

欢迎学习CCEA七年级经济学复习指南。经济学帮助我们理解人们如何做选择、企业如何运作以及货币如何在社会中流动。本文梳理了你将学习的最重要概念，从稀缺性和供给到预算和环境。用它来复习每个主题并检验你的理解。

1. Scarcity and Choice | 稀缺性与选择

Scarcity is the basic economic problem. It means that our wants are unlimited, but the resources to satisfy them are limited. Because we cannot have everything, we must make choices. Every choice involves giving something up, which is called opportunity cost. For example, if you spend your pocket money on a video game, you might have to give up buying a snack.

稀缺性是基本的经济学问题。它意味着我们的欲望是无限的，但满足欲望的资源是有限的。因为我们不可能拥有一切，所以必须做出选择。每个选择都涉及放弃某些东西，这被称为机会成本。例如，如果你把零花钱花在一个电子游戏上，你可能就得放弃购买零食。

In economics, resources are often grouped into four factors of production: land, labour, capital, and enterprise. Land includes natural resources like water and forests. Labour is the work done by people. Capital refers to tools, machines, and buildings used to produce goods. Enterprise is the skill of bringing the other factors together to start a business and take risks.

在经济学中，资源通常分为四类生产要素：土地、劳动、资本和企业才能。土地包括水和森林等自然资源。劳动是人们完成的工作。资本指用于生产商品的工具、机器和建筑物。企业才能是将其他要素结合起来创办企业并承担风险的技能。

Land: gifts of nature, e.g. oil, soil.
Labour: human effort, both physical and mental.
Capital: man-made goods used in production, like a sewing machine.
Enterprise: the ability to organise the other factors and innovate.

土地：自然的馈赠，例如石油、土壤。
劳动：人类的努力，包括体力和脑力。
资本：用于生产的人造物品，如缝纫机。
企业才能：组织其他要素并创新的能力。

2. Needs and Wants | 需要与欲望

A need is something essential for survival, such as food, water, shelter, and clothing. A want is something we would like to have but is not necessary for staying alive, like a new smartphone or a holiday. Distinguishing between needs and wants helps us make better spending decisions and understand why scarcity forces us to prioritise.

需要是维持生存所必需的东西，比如食物、水、住所和衣物。欲望是我们想要拥有但对生存并非必不可少的东西，如一部新智能手机或一次度假。区分需要和欲望有助于我们做出更好的消费决策，并理解为什么稀缺性迫使我们优先安排。

Sometimes, items can fall into both categories. Bread is a need, but choosing an expensive artisan loaf over a basic one turns part of the choice into a want. Businesses often try to persuade us that their products meet our needs, even when they satisfy wants. Learning to tell the difference is a key life skill.

有时，物品可以同时属于两个类别。面包是需要，但选择昂贵的手工面包而非普通面包，就把部分选择变成了欲望。企业常常试图说服我们，他们的产品能满足我们的需要，即使是在满足欲望。学会区分是一项关键的生活技能。

3. Demand and Supply | 需求与供给

Demand is the amount of a good or service that consumers are willing and able to buy at different prices. Generally, as the price falls, quantity demanded rises – this is the law of demand. Supply is the amount that producers are willing and able to sell. Usually, as the price rises, quantity supplied increases, because firms want to earn more profit.

需求是指消费者在不同价格下愿意并能够购买的商品或服务的数量。通常，随着价格下降，需求量上升——这就是需求定律。供给是指生产者愿意并能够出售的数量。通常，随着价格上升，供给量增加，因为企业希望赚取更多利润。

Price is determined by the interaction of demand and supply. When demand exceeds supply, there is a shortage, and price tends to rise. When supply exceeds demand, there is a surplus, and price tends to fall. The point where demand equals supply is called the equilibrium price. Understanding this helps explain why prices change in shops and online.

价格由需求和供给的相互作用决定。当需求超过供给时，出现短缺，价格往往上升。当供给超过需求时，出现过剩，价格往往下降。需求等于供给的点被称为均衡价格。理解这一点有助于解释商店和网上价格为何变动。

Scenario	Effect on Price
Demand rises, supply unchanged	Price increases
Supply rises, demand unchanged	Price decreases
Both rise equally	Price may stay the same

情景	对价格的影响
需求上升，供给不变	价格上涨
供给上升，需求不变	价格下降
两者等量上升	价格可能不变

4. Markets and Exchange | 市场与交换

A market is any arrangement that brings buyers and sellers together. It does not have to be a physical place; an online marketplace like a video game store is also a market. Markets allow specialisation and trade, meaning people and countries can focus on what they do best and exchange their surplus for other goods. This makes the economy more efficient.

市场是将买方和卖方联系在一起的任何安排。它不一定是实体场所；像电子游戏商店这样的在线市场也是市场。市场允许专业化和贸易，这意味着个人和国家可以专注于自己最擅长的领域，并用剩余产品交换其他商品。这使得经济更有效率。

Barter was an early form of exchange where goods were swapped directly. Today, we use money as a medium of exchange, which makes trade much easier. Markets for goods, services, labour, and financial assets exist. In your local community, you can see markets at car boot sales, farmers’ markets, or even school charity events. Each market matches buyers and sellers.

以物易物是早期的交换形式，商品直接交换。如今，我们使用货币作为交换媒介，这使贸易变得容易得多。商品、服务、劳动力和金融资产市场都存在。在本地社区，你可以在后备箱集市、农贸市场甚至学校慈善活动中看到市场。每个市场都将买卖双方匹配起来。

5. The Role of Money | 货币的角色

Money serves several important functions in an economy. It acts as a medium of exchange, so we do not need to barter. It is a store of value, meaning we can save it and use it later. Money is also a unit of account, allowing us to measure and compare the value of different goods easily. These functions help trade and saving work smoothly.

货币在经济中发挥着几个重要功能。它充当交换媒介，因此我们无需以物易物。它是价值储存手段，意味着我们可以储蓄并以后使用。货币也是记账单位，使我们能够轻松衡量和比较不同商品的价值。这些功能有助于贸易和储蓄顺利进行。

Historically, many items have been used as money: shells, salt, gold, and eventually coins and banknotes. Today, digital money and contactless payments are increasingly common. For money to be effective, it must be widely accepted, durable, portable, divisible, and stable in value. Central banks, like the Bank of England, manage the supply of money to keep prices relatively stable.

历史上，许多物品曾被用作货币：贝壳、盐、黄金，最终是硬币和纸币。如今，数字货币和非接触式支付越来越普遍。要使货币有效，它必须被广泛接受、耐用、便携、可分割且价值稳定。中央银行，如英格兰银行，管理货币供应以保持物价相对稳定。

6. Budgeting and Saving | 预算与储蓄

Budgeting means planning how to spend and save your income. A personal budget compares money coming in (income) with money going out (expenditure). By budgeting, you can avoid overspending and set aside money for future goals, such as a new bicycle or a mobile phone. Saving means not spending all your money now, so you can use it later.

预算意味着规划如何支出和储蓄你的收入。个人预算将收入与支出进行比较。通过预算，你可以避免超支，并为未来目标（如一辆新自行车或一部手机）留出资金。储蓄意味着现在不花掉所有钱，以便将来可以使用。

A simple budget can be drawn up using two columns: income and expenses. Common sources of income for Year 7 pupils might be pocket money, money from part-time jobs, or birthday gifts. Expenses include sweets, entertainment, and saving for bigger items. Balancing the budget means ensuring that total spending does not exceed income, and ideally some is saved.

简单的预算可以用两栏来编制：收入和支出。七年级学生常见的收入来源可能是零花钱、兼职工作的收入或生日礼金。开支包括糖果、娱乐和为大件物品储蓄。平衡预算意味着确保总支出不超过收入，理想情况下还要存一些钱。

Budget formula: Income – Expenditure = Surplus or Deficit

预算公式：收入 – 支出 = 盈余或赤字

7. Production and Consumption | 生产与消费

Production is the process of creating goods and services to satisfy people’s wants and needs. Goods are physical items like books and shoes, while services are non-physical actions like haircuts or bus journeys. Consumption happens when individuals or families use these goods and services. The economy works as a circular flow between producers and consumers.

生产是为满足人们欲望和需要而创造商品和服务的过程。商品是实物，如书籍和鞋子，而服务是非实物的行为，如理发或乘坐公交车。当个人或家庭使用这些商品和服务时，就发生了消费。经济在生产者与消费者之间循环流动。

Producers rely on factors of production to make output. They also use technology to become more productive. Productivity measures how much output is produced from a given amount of input. Higher productivity can lead to lower costs and more goods available. Consumers, on the other hand, make decisions based on their income, preferences, and prices.

生产者依靠生产要素来制造产出。他们还使用技术来提高生产率。生产率衡量从给定的投入中生产出了多少产出。更高的生产率可以带来更低的成本和更多的商品供给。另一方面，消费者根据收入、偏好和价格做出决策。

8. Work and Occupations | 工作与职业

Work is the effort people put into producing goods and services in exchange for wages, salaries, or profits. Occupations can be classified into sectors. The primary sector extracts raw materials (farming, mining). The secondary sector manufactures goods (factories, construction). The tertiary sector provides services (shops, hospitals, education).

工作是人们为生产商品和服务而付出的努力，以换取工资、薪水或利润。职业可以按部门分类。第一产业开采原材料（农业、采矿）。第二产业制造商品（工厂、建筑）。第三产业提供服务（商店、医院、教育）。

Why do people work? For income, of course, but also for satisfaction, social contact, and to develop skills. In Northern Ireland, many people work in the public sector (government jobs) and in services. The type of work available depends on the local economy and the skills of the workforce. Thinking about careers helps you see how economics connects to your future.

人们为什么工作？当然是为了收入，但也为了满足感、社会联系和发展技能。在北爱尔兰，许多人在公共部门（政府工作）和服务业工作。可从事的工作类型取决于当地经济和劳动力的技能。思考职业可以帮助你看到经济学与你未来的联系。

9. Economic Systems | 经济体系

An economic system is the way a country organises its resources and makes decisions about what, how, and for whom to produce. The three main types are market economy, planned economy, and mixed economy. In a market economy, decisions are made by individuals and firms based on prices. In a planned economy, the government controls resources. Most real-world economies are mixed, combining both.

经济体系是一个国家组织资源并决定生产什么、如何生产以及为谁生产的方式。三种主要类型是市场经济、计划经济和混合经济。在市场经济中，决策由个人和企业根据价格做出。在计划经济中，政府控制资源。现实世界中的大多数经济体是混合型，两者兼有。

The UK, including Northern Ireland, has a mixed economy. Private businesses operate in markets, but the government also provides services like healthcare and education, and makes rules to protect workers and consumers. Economic systems influence the choices available to you every day: what you can buy, where you might work, and how much tax is paid.

英国，包括北爱尔兰，实行混合经济。私营企业在市场中运营，但政府也提供医疗保健和教育等服务，并制定规则保护工人和消费者。经济体制影响你每天可获得的选择：你可以买什么、可能在哪里工作，以及需要缴纳多少税。

10. Environment and Economics | 环境与经济学

Economics is not just about money; it also examines how we use natural resources and the impact on the planet. Sustainable development means meeting our needs today without harming the ability of future generations to meet their own needs. Issues like pollution, climate change, and deforestation are economic problems because they involve choices about resource use.

经济学不仅关乎金钱；它还研究我们如何使用自然资源以及对地球的影响。可持续发展意味着满足我们当前的需求，而不损害后代满足其自身需求的能力。污染、气候变化和森林砍伐等问题是经济问题，因为它们涉及资源使用的选择。

Governments can use taxes, subsidies, and regulations to encourage environmentally friendly behaviour. For example, a charge on plastic bags reduces waste. Consumers also make ‘green’ choices by buying recycled products or walking instead of driving. As a young person, understanding the link between economics and the environment helps you become a responsible citizen.

政府可以利用税收、补贴和法规来鼓励环保行为。例如，塑料袋收费减少了浪费。消费者也通过购买回收产品或步行而非开车来做出“绿色”选择。作为年轻人，理解经济学与环境之间的联系，有助于你成为负责任的公民。

11. Key Terms to Remember | 关键术语回顾

Below is a quick-reference table of essential economics vocabulary you will encounter in Year 7. Knowing these definitions will strengthen your written answers and class discussions. Practice using each term in a sentence about your own life.

下面是一个速查表，列出了你在七年级会遇到的基本经济学词汇。掌握这些定义将使你的书面回答和课堂讨论更扎实。练习在自己的生活情境中使用每个术语造句。

Term	Definition
Scarcity	Limited resources and unlimited wants.
Opportunity cost	The next best alternative given up when a choice is made.
Market	A way of bringing buyers and sellers together.
Equilibrium	The price where demand equals supply.
Budget	A plan of income and spending over a period.
Sustainable	Meeting present needs without harming future generations.

术语	定义
稀缺性	有限的资源与无限的欲望。
机会成本	做出选择时放弃的次优替代方案。
市场	将买卖双方联系在一起的途径。
均衡	需求等于供给的价格。
预算	一个时间段内的收入和支出计划。
可持续	满足当代需求而不损害后代。

12. Check Your Understanding | 自我检测

Review what you have learned by answering these quick questions. Write down your answers before looking at the hints. This active recall will help fix the core knowledge in your memory.

通过回答这些简短问题来复习所学内容。在看提示之前先写下你的答案。这种主动回忆将帮助你把核心知识牢牢记住。

Q1: What is the difference between a need and a want? (Hint: Think about survival.)
Q2: Explain why scarcity forces you to make choices. (Hint: Use the idea of limited pocket money.)
Q3: If the price of cinema tickets rises, what might happen to demand? (Hint: Law of demand.)
Q4: Why is money more convenient than barter? (Hint: Think about double coincidence of wants.)
Q5: Give one example of how the government can protect the environment. (Hint: Taxes or laws.)

问题1：需要和欲望有什么区别？（提示：想想与生存的关系。）
问题2：解释为什么稀缺性迫使你做出选择。（提示：用零花钱有限这个想法。）
问题3：如果电影票价格上涨，需求可能会发生什么变化？（提示：需求定律。）
问题4：为什么货币比物物交换更方便？（提示：想想欲望的双重巧合。）
问题5：举一个例子说明政府如何保护环境。（提示：税收或法律。）

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Core Knowledge Summary for Year 7 CCEA Economics | 七年级CCEA经济学核心知识点梳理