📚 Year 7 Cambridge Economics: Summer Prep & Bridging Course | 剑桥七年级经济：暑期预习与衔接课程
Summer holiday is the perfect time to get a head start on Economics. By exploring fundamental concepts now, Year 7 students can build confidence and curiosity before their formal lessons begin. This bridging guide introduces key ideas in a clear, friendly way, helping you understand how the world works – from pocket money decisions to global trade.
暑假是为经济学学习抢占先机的绝佳时机。现在探索基本概念，七年级学生可以在正式课程开始前建立信心与好奇心。这份衔接指南以清晰、友好的方式介绍核心思想，帮助你理解世界如何运作 —— 从零花钱决策到全球贸易。
1. What is Economics? | 什么是经济学？
Economics is the study of how people make choices when resources are limited. It looks at how individuals, businesses, and governments decide what to produce, how to produce it, and who gets to enjoy the goods and services. In simple terms, economics helps us understand why we cannot have everything we want and how we try to make the best use of what we have.
经济学是研究人们在资源有限时如何做出选择的学科。它着眼于个人、企业和政府如何决定生产什么、如何生产以及谁能享受到商品和服务。简单来说，经济学帮助我们理解为什么我们不能拥有所有想要的东西，以及我们如何尽力善用已有资源。
2. The Basic Economic Problem: Scarcity | 基本经济问题：稀缺性
Scarcity is the core idea in economics. It means that our wants are unlimited, but the resources available to satisfy them are limited. Even the richest people cannot buy everything because time, money, land, and labour are all finite. This forces everyone – individuals, firms, and governments – to make choices. Everyday examples include deciding how to spend a Saturday afternoon: you could play football, revise maths, or watch a film, but you cannot do all three at once. That is scarcity in action.
稀缺性是经济学的核心概念。它意味着我们的欲望是无限的，但满足这些欲望的资源是有限的。即使是最富有的人也无法买到一切，因为时间、金钱、土地和劳动力都是有限的。这迫使每个人——个人、企业和政府——做出选择。日常例子包括决定如何度过一个周六下午：你可以踢足球、复习数学或看电影，但你无法同时做这三件事。这就是稀缺性的实际体现。
3. Needs vs. Wants | 需要与想要
Economists distinguish between needs and wants. Needs are essentials for survival, such as food, water, shelter, and clothing. Wants are everything else we desire, like video games, holidays, or the latest smartphone. Understanding this difference helps us prioritise our spending and recognise how businesses attract customers by turning wants into perceived needs.
经济学家区分需要和想要。需要是生存的必需品，如食物、水、住所和衣物。想要是我们渴望的其他一切，如电子游戏、度假或最新款智能手机。理解这一区别有助于我们确定消费的优先顺序，并认识到企业是如何通过将想要转化为感知到的需要来吸引顾客的。
A simple table can help clarify the idea:
一个简单的表格可以帮助理清这个概念：
| Needs (需要) | Wants (想要) |
|---|---|
| Nutritious food (营养食物) | Ice cream (冰淇淋) |
| A warm coat (保暖外套) | Designer jacket (名牌夹克) |
| Clean water (清洁的水) | Fizzy drinks (碳酸饮料) |
4. Opportunity Cost: The Next Best Alternative | 机会成本：次优选择
Whenever we make a choice, we give up something. The opportunity cost is the value of the next best alternative that we forgo. For example, if you have £10 and decide to buy a book instead of a cinema ticket, the opportunity cost is the enjoyment you would have gained from watching the movie. Recognising opportunity cost helps us make more thoughtful decisions, for both small personal choices and large government projects.
每当我们做出选择时，我们都放弃了一些东西。机会成本就是我们放弃的次优选择的价值。例如，如果你有10英镑，决定买一本书而不是买电影票，机会成本就是你从看电影中本可获得的享受。认识到机会成本有助于我们做出更周全的决定，无论是微小的个人选择还是庞大的政府项目。
Opportunity Cost = Next Best Alternative Forgone
机会成本 = 放弃的次优选择
5. Economic Agents: Who Makes Decisions? | 经济主体：谁在做决策？
In economics, we group decision-makers into three main agents: households (individuals like you and your family), firms (businesses), and the government. Households earn income and spend on goods and services. Firms produce and sell goods and services. The government collects taxes and provides public services such as roads, schools, and healthcare. Their interactions shape an economy: households work for firms, firms pay wages, and the government redistributes resources to support society.
在经济学中，我们将决策者分为三大类主体：家庭（像你和你的家人这样的个人）、企业（公司）和政府。家庭赚取收入并购买商品和服务。企业生产和销售商品与服务。政府征税并提供道路、学校和医疗等公共服务。它们之间的互动塑造了一个经济体：家庭为企业工作，企业支付工资，政府重新分配资源以支持社会运转。
6. Factors of Production | 生产要素
To produce any good or service, four essential inputs are needed. They are land (natural resources), labour (human effort), capital (man-made tools and machinery), and enterprise (the skill of organising the other three and taking risks). For instance, to produce a pizza, you need land for wheat and tomatoes, labour from the chef and delivery driver, capital like ovens and delivery bikes, and an entrepreneur to run the pizzeria. Without any one of these, production would stop.
要生产任何商品或服务，都需要四种基本投入。它们是土地（自然资源）、劳动力（人的努力）、资本（人造工具和机器）以及企业家精神（组织其他三者并承担风险的技能）。例如，生产比萨饼需要土地来种植小麦和西红柿，需要厨师的劳动和送货员的劳动，需要烤炉和送餐车这类资本，还需要一位企业家来经营比萨店。缺少其中任何一项，生产都将停止。
7. Introduction to Supply and Demand | 供求初探
Supply and demand are two forces that drive markets. Demand shows how much of a good consumers are willing and able to buy at different prices. Supply shows how much producers are willing to offer for sale. Generally, when price goes up, demand falls and supply rises. When price falls, demand increases and supply decreases. The point where they meet is the market price, also called the equilibrium.
供求是驱动市场的两股力量。需求显示在不同价格下消费者愿意并能够购买的商品数量。供给显示生产者愿意出售的数量。通常，当价格上升时，需求下降而供给上升。当价格下降时，需求增加而供给减少。两者交汇点便是市场价格，也称为均衡点。
You can try a simple activity: think about a popular new video game. If the game is very limited in stock, what happens to its price? And if many copies are produced but few people want it, how does the price change? That is supply and demand at work.
你可以尝试一个简单的活动：想想一款热门的新电子游戏。如果游戏库存十分有限，它的价格会怎样？如果生产了大量游戏却没什么人想要，价格又会如何变化？这就是供求在起作用。
8. Goods and Services | 商品与服务
Outputs in an economy are divided into goods (tangible items you can touch, like a backpack or a banana) and services (intangible actions provided for you, like a haircut or a bus ride). Some products combine both, such as a restaurant meal (the food is a good, the cooking and serving are services). Understanding this distinction helps us analyse what different parts of the economy deliver and how employment is structured.
经济体中的产出分为商品（你可以触摸到的有形物品，如背包或香蕉）和服务（为你提供的无形行为，如理发或乘公交车）。有些产品结合了两者，如餐厅用餐（食物是商品，烹饪和服务是服务）。理解这一区别有助于我们分析经济的不同部分提供的是什么，以及就业结构是如何构成的。
9. How Markets Work (Simple Version) | 市场如何运作（简单版）
A market is any arrangement where buyers and sellers exchange goods, services, or resources. It does not have to be a physical place; online platforms like eBay are also markets. Markets allocate scarce resources through the price mechanism. When demand for a product is high relative to supply, prices tend to rise, which encourages more production and discourages some consumption, bringing balance over time.
市场是买卖双方交换商品、服务或资源的任何安排。它不一定是一个实体场所；像eBay这样的在线平台也是市场。市场通过价格机制分配稀缺资源。当某产品的需求相对于供给较高时，价格往往上升，这激励更多生产并抑制部分消费，从而随着时间推移带来平衡。
10. The Role of Money | 货币的角色
Money serves three main functions: a medium of exchange (we use it to buy things instead of bartering), a store of value (it can be saved and used later), and a unit of account (it helps us measure and compare the value of different items). Without money, trading would be very inconvenient – imagine trying to swap your old bicycle for a bag of groceries directly! Modern money also includes digital payments, but the core functions remain the same.
货币有三个主要职能：交换媒介（我们用它来购买东西，而不是以物易物），价值储藏（它可以被储存并在以后使用），以及计价单位（它帮助我们衡量和比较不同物品的价值）。没有货币，交易将非常不便——想象一下你试图用一辆旧自行车直接交换一袋食品杂货吧！现代货币还包括数字支付，但其核心职能保持不变。
11. Simple Budgeting and Personal Finance | 简单预算与个人理财
Even as a Year 7 student, you can practise basic economics through a personal budget. List your weekly income (pocket money, gifts) and your planned expenses (snacks, savings, hobbies). Aim to ensure your spending is less than your income, so you can save. Budgeting is a real-life application of scarcity and choice – you cannot buy everything, so you must prioritise. Saving also links to the idea of delayed gratification and investment for future wants.
即使是一名七年级学生，你也能通过个人预算实践基础经济学。列出你每周的收入（零花钱、礼物）和计划的支出（零食、储蓄、爱好）。目标是确保你的支出小于收入，这样你就能储蓄。预算就是稀缺性和选择的现实应用——你无法买下所有东西，所以必须确定优先顺序。储蓄也与延迟满足和为未来想要而投资的概念相联系。
Income – Spending = Saving (or Borrowing)
收入 – 支出 = 储蓄（或借款）
12. Tips for Summer Prep and Further Reading | 暑期准备技巧与拓展阅读
To enjoy a smooth transition into your Economics course, try these activities: keep a news diary where you note down one economic story each day (e.g. price changes, new business openings); read age-appropriate books like ‘The Economics Book’ (DK) or ‘The Lemonade War’ (fiction that explores business ideas); and discuss choices with your family – ask why they choose certain brands or how they decide on a holiday budget. Most importantly, stay curious and ask ‘Why?’ whenever you see a price tag, a sale sign, or a new product. Economics is everywhere, waiting to be discovered.
为了顺利过渡到你的经济学课程，可以尝试这些活动：记一份新闻日记，每天记录一则经济故事（如价格变化、新店开业）；阅读适龄书籍，比如《经济学百科》（DK 出版社）或《柠檬水大战》（探索商业理念的小说）；与家人讨论选择——问问他们为什么选择某些品牌，或者他们如何决定度假预算。最重要的是，保持好奇心，每当你看到价签、打折标志或新产品时，问问“为什么”。经济学无处不在，等待你去发现。
Published by TutorHao | Economics Revision Series | aleveler.com
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