📚 Year 7 SQA Economics: Unit Test Mock Paper Analysis | 7年级SQA经济：单元测试模拟卷解析
Welcome to your Year 7 SQA Economics unit test revision guide. This article breaks down a full mock paper, question by question, to help you understand key concepts and avoid common mistakes. Use it to check your answers and improve your exam technique.
欢迎查看7年级SQA经济单元测试复习指南。本文将逐题解析一套完整的模拟试卷，帮助你理解核心概念并避开常见错误。请用它核对答案并提升考试技巧。
1. Mock Paper Overview | 模拟卷概述
This mock paper is designed to mirror the format and difficulty of a typical Year 7 SQA Economics unit test. It contains 10 questions covering the basic economic problem, opportunity cost, factors of production, demand and supply, the role of money, and personal finance. The questions include multiple choice, short answer, and a case study. The suggested time limit is 45 minutes.
本模拟卷旨在对标典型7年级SQA经济单元测试的格式与难度。试卷包含10道题，涵盖基本经济问题、机会成本、生产要素、需求与供给、货币的作用以及个人理财。题型包括选择题、简答题和一个案例分析。建议时间限制为45分钟。
The paper is structured as follows: Questions 1–3 are multiple choice (1 mark each), Questions 4–7 are short answer (2 marks each), Questions 8–9 are data response (3 marks each), and Question 10 is a case study with three parts (6 marks). Total marks: 25.
试卷结构如下：第1–3题为单选题（每题1分），第4–7题为简答题（每题2分），第8–9题为数据分析题（每题3分），第10题为案例分析，含三个部分（6分）。总分25分。
2. Question 1: What is the Basic Economic Problem? | 第1题：基本经济问题是什么？
Question (Multiple Choice): The basic economic problem arises because:
A) People have unlimited wants but resources are limited.
B) People are lazy.
C) Money does not grow on trees.
D) Governments spend too much.
题目（单选）：基本经济问题的产生是因为：
A) 人们的欲望无限但资源有限。
B) 人们懒惰。
C) 钱不会从树上长出来。
D) 政府支出过多。
Correct answer: A
正确答案：A
Scarcity is the fundamental economic problem. It means that society has insufficient resources to fulfil all human wants. Even wealthy countries face scarcity because wants are infinite while resources such as land, labour, and capital are finite. Options B, C, and D are either jokes or misconceptions.
稀缺性是基本经济问题。它意味着社会没有足够的资源来满足人类的所有欲望。即使富裕国家也面临稀缺，因为欲望无限而土地、劳动力和资本等资源有限。选项B、C、D或是玩笑或是误解。
3. Question 2: Opportunity Cost in Daily Life | 第2题：日常生活中的机会成本
Question (Multiple Choice): You have £10 to spend. You can buy a cinema ticket or a new book. You choose the cinema ticket. The opportunity cost is:
A) The £10.
B) The enjoyment of the film.
C) The book you gave up.
D) The price of the cinema ticket.
题目（单选）：你有10英镑可以花。你可以买一张电影票或一本新书。你选择了电影票。机会成本是：
A) 这10英镑。
B) 观影的乐趣。
C) 你放弃的书。
D) 电影票的价格。
Correct answer: C
正确答案：C
Opportunity cost is the next best alternative forgone. When you choose the cinema, the next best option you give up is the book. The money itself (A) is not the cost—it is the resource used. The enjoyment (B) is the benefit you gain. The price (D) is a monetary cost, not the opportunity cost.
机会成本是所放弃的次优选择。当你选择看电影时，你放弃的次优选择是那本书。金钱本身（A）不是成本——它是使用的资源。乐趣（B）是你获得的收益。价格（D）是货币成本，不是机会成本。
4. Question 3: Needs vs. Wants | 第3题：需要与欲望
Question (Multiple Choice): Which of the following is a 'need' rather than a 'want'?
A) A new smartphone.
B) Clean drinking water.
C) Designer trainers.
D) A holiday abroad.
题目（单选）：以下哪项是“需要”而非“欲望”？
A) 新智能手机。
B) 清洁饮用水。
C) 名牌运动鞋。
D) 出国度假。
Correct answer: B
正确答案：B
Needs are essential for survival, such as water, food, shelter, and clothing. Wants are things we desire but are not essential for living. Clean drinking water is a basic human need. The others are luxuries or wants that improve quality of life but are not necessary for survival.
需要是生存所必需的，如水、食物、住所和衣物。欲望是我们渴望但并非生活必需的东西。清洁饮用水是基本的人类需要。其他都是奢侈品或欲望，
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