📚 Year 11 CAIE Economics: Unit Test Mock Paper Analysis | Year 11 CAIE 经济：单元测试模拟卷解析
This article provides a detailed walkthrough of a Year 11 CAIE Economics unit test mock paper, focusing on fundamental microeconomic and macroeconomic concepts. Each section presents a typical exam question along with a step-by-step explanation to reinforce your understanding and exam technique.
本文详细解析一份 Year 11 CAIE 经济学单元测试模拟卷，聚焦微观与宏观经济基础概念。每个小节呈现一道典型考题及逐步讲解，帮助你巩固理解并提升应试技巧。
1. The Basic Economic Problem: Scarcity | 基本经济问题：稀缺性
Question: 'Which of the following best defines the basic economic problem?' A. Unlimited wants and unlimited resources. B. Limited wants and limited resources. C. Unlimited wants and limited resources. D. Limited wants and unlimited resources.
题目：“以下哪项最准确地定义了基本经济问题？” A. 无限欲望和无限资源。B. 有限欲望和有限资源。C. 无限欲望和有限资源。D. 有限欲望和无限资源。
The correct answer is C. Economics arises because human wants are virtually unlimited, while the resources (land, labour, capital, and enterprise) available to satisfy them are finite. This mismatch forces societies to make choices about what to produce, how to produce, and for whom to produce.
正确答案是 C。经济学产生的原因在于人类的欲望几乎是无限的，而用来满足这些欲望的资源（土地、劳动、资本和企业家才能）是有限的。这种不匹配迫使社会就生产什么、如何生产和为谁生产做出选择。
In CAIE exams, you must clearly distinguish between scarcity and a shortage. Scarcity is permanent and universal, whereas a shortage is temporary and can be resolved by raising the price or increasing supply.
在 CAIE 考试中，你必须清楚区分稀缺性与短缺。稀缺性是永久且普遍存在的，而短缺是暂时的，可以通过提高价格或增加供给来解决。
2. Opportunity Cost and the Production Possibility Frontier (PPF) | 机会成本与生产可能性边界
Question: 'A country moves from point A (producing 50 units of capital goods and 80 units of consumer goods) to point B (60 capital goods, 60 consumer goods) on its PPF. What is the opportunity cost of the additional capital goods?'
题目：“一个国家在其生产可能性边界上从 A 点（生产 50 单位资本品和 80 单位消费品）移动到 B 点（60 单位资本品和 60 单位消费品）。增加资本品的机会成本是多少？”
The opportunity cost is the next best alternative foregone. Here, to produce an extra 10 units of capital goods (60 - 50), the economy must sacrifice 20 units of consumer goods (80 - 60). Therefore, the opportunity cost of one additional capital good is 2 consumer goods. This illustrates the concept of increasing opportunity cost if the PPF is concave.
机会成本是所放弃的次优选择。此处，为了多生产 10 单位资本品（60 − 50），经济必须牺牲 20 单位消费品（80 − 60）。因此，额外 1 单位资本品的机会成本是 2 单位消费品。如果生产可能性边界是凹向原点的，这就体现了机会成本递增的概念。
When analysing PPF shifts, remember that an outward shift can result from an increase in the quantity or quality of resources, or technological progress. A movement from inside the PPF to the frontier represents a reduction in unemployment or inefficiency.
分析 PPF 移动时，要记住向外移动可能源于资源数量或质量的提升，或技术进步。从边界内部移动到边界上则表示失业或低效率状况的改善。
<Published by TutorHao | Year 11 Economics Revision Series | aleveler.com
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