📚 GCSE Cambridge Accounting: Unit Test Mock Paper Analysis | GCSE Cambridge 会计：单元测试模拟卷解析
This article walks through typical questions found in a Cambridge IGCSE Accounting unit test, highlighting key concepts, common mistakes, and effective revision strategies. Each section focuses on a core topic, offers a sample question, and then explains the solution step by step.
本文逐一讲解剑桥 IGCSE 会计单元测试中常见的题型，重点梳理核心概念、常见错误与高效的复习方法。每个小节围绕一个核心主题，给出示例问题并逐步拆解答案。
1. The Accounting Equation in Action | 会计等式的实际应用
Sample question: A sole trader buys a delivery van for £12,000, paying £3,000 in cash and taking out a bank loan for the remaining £9,000. What is the immediate effect on the accounting equation?
示例问题：某个体经营者购买一辆价值12,000英镑的送货车，支付3,000英镑现金，其余9,000英镑以银行贷款支付。这笔交易对会计等式有何立即影响？
The equation is Assets = Liabilities + Capital. The van increases assets by £12,000, cash decreases by £3,000, and the loan increases liabilities by £9,000. Net assets rise by £9,000, which equals the increase in liabilities, so capital stays unchanged.
会计等式为：资产 = 负债 + 资本。货车使资产增加12,000英镑，现金减少3,000英镑，贷款使负债增加9,000英镑。净资产上升9,000英镑，与负债增加额相等，因此资本保持不变。
A common mistake is to think the full £12,000 is purely an asset gain and to ignore the loan, or to debit the van and credit cash for £12,000 without recognising the liability. Always check that the dual effect is complete.
常见的错误是认为12,000英镑全部是资产增加而忽略贷款，或错误地借记货车、贷记现金12,000英镑而未确认负债。务必检查复式记账的两方面是否完整。
2. Double-Entry Errors and the Trial Balance | 复式记账错误与试算平衡表
Sample question: A purchase of stationery for £150 cash was recorded as debit Stationery £150, credit Sales £150. What type of error is this, and how would it affect the trial balance?
示例问题：以现金150英镑购买文具，分录为借记文具150英镑，贷记销售收入150英镑。这是什么类型的错误？如何影响试算平衡表？
This is an error of principle, because stationery is correctly debited as an expense, but the credit entry was posted to Sales instead of Cash. The trial balance would still balance because both sides equal £150, but the Sales account is overstated and the Cash account is overstated, while purchases are correct.
这是一个原则性错误，因为文具作为费用借记是正确的，但贷方记入了销售收入而非现金。试算平衡表仍然平衡，因为借贷双方均为150英镑，但销售收入账户被高估，现金账户也被高估（实际现金应减少），而费用记录正确。
To correct it, we need to reverse the wrong credit in Sales and record the correct credit to Cash: debit Sales £150, credit Cash £150. This reduces both the overstated sales and the overstated cash balance.
为更正此错误，需冲销销售收入的错误贷记，并记录正确的现金贷记：借记销售收入150英镑，贷记现金150英镑。这样同时调低高估的销售收入与现金余额。
3. Correcting Errors with a Suspense Account | 通过暂记账户更正错误
Sample scenario: A trial balance shows a difference of £400 (credit side larger). Investigations reveal that a payment of £200 for rent was debited twice to the Rent account. Prepare the journal entries to clear the suspense account.
示例情境：试算平衡表显示贷方高于借方400英镑。经查，一笔200英镑的租金支付在租金账户中借记了两次。请编制清除暂记账户的分录。
The double debit means expenses are overstated by £200, so the Rent account needs a credit of £200 to correct it. Since the trial balance had an excess credit of £400, the suspense account was opened with a debit of £400. After correcting the rent error (credit Rent £200), the remaining difference must be corrected. There could be another error, but imagine only this error exists: the suspense debit £400 minus the correction credit of £200 leaves a debit of £200 that remains unexplained, so the journal would be: debit Suspense £200, credit Rent £200. The suspense account would then have a net debit of £200, which suggests another error. In a question, we would then need to find the other discrepancy.
重复借记意味着费用被高估200英镑，因此租金账户需贷记200英镑以更正。试算平衡表产生贷方超出400英镑，故暂记账户以借记400英镑开立。更正租金错误（贷记租金200英镑）后，暂记账户仍余借记200英镑，说明另有一项错误。假设仅此一项错误，则分录应为：借记暂记200英镑，贷记租金200英镑。暂记账户借记余额变为200英镑，提示尚需查找其他差异。
Always remember: the opening suspense account balance is placed on the opposite side of the trial balance discrepancy. If the trial balance credit total is greater, debit suspense when opening; if debit total is greater, credit suspense.
务必记住：暂记账户期初余额置于试算平衡表差额的相反方。若试算平衡表贷方合计更大，则借记暂记；若借方合计更大，则贷记暂记。
4. Calculating Depreciation: Straight-Line vs Reducing Balance | 计算折旧：直线法与余额递减法
Sample question: Machinery cost £50,000, expected useful life of 5 years, residual value £5,000. Calculate the annual depreciation charge using the straight-line method and the reducing balance method at 30% per annum. Show the net book value after 2 years under each method.
示例问题：机器成本50,000英镑，预计使用年限5年，残值5,000英镑。请使用直线法及年折旧率30%的余额递减法计算每年折旧费用，并分别列示两种方法下两年后的账面净值。
Straight-line: (Cost – Residual value) ÷ Useful life = (£50,000 – £5,000) ÷ 5 = £9,000 per year. After 2 years, accumulated depreciation = £18,000, net book value = £50,000 – £18,000 = £32,000.
直线法：(50,000 – 5,000) ÷ 5 = 9,000英镑/年。2年后累计折旧18,000英镑，账面净值 = 50,000 – 18,000 = 32,000英镑。
Reducing balance: Year 1: £50,000 × 30% = £15,000; net book value = £35,000. Year 2: £35,000 × 30% = £10,500; net book value = £24,500. Note that after 2 years, the reducing balance method gives a much lower net book value.
余额递减法：第1年：50,000 × 30% = 15,000英镑，账面净值35,000英镑；第2年：35,000 × 30% = 10,500英镑，账面净值24,500英镑。可见两年后余额递减法下的账面净值低得多。
Reducing Balance Depreciation = Net Book Value at Start of Year × Rate %
5. Bad Debts and Provision for Doubtful Debts | 坏账与呆账准备
Sample question: A business has trade receivables of £30,000. It decides to write off £500 as a bad debt and create a provision for doubtful debts of 5% on the remaining receivables. What is the net effect on the income statement?
示例问题：某企业拥有应收账款30,000英镑，决定注销坏账500英镑，并对其余应收账款计提5%的呆账准备。这对利润表有何净影响？
After write-off, receivables = £30,000 – £500 = £29,500. Provision = 5% × £29,500 = £1,475. The total expense in the income statement is the bad debt written off (£500) plus any increase in provision. If the previous provision was zero, the total charge is £1,975.
注销后应收账款 = 30,000 – 500 = 29,500英镑。准备 = 29,500 × 5% = 1,475英镑。利润表中的费用总额为注销坏账500英镑加上准备金的增加额。若此前无准备，则总费用为1,975英镑。
The trade receivables shown in the statement of financial position will be £29,500 – £1,475 = £28,025, representing the amount expected to be received.
资产负债表中列示的应收账款为29,500 – 1,475 = 28,025英镑，代表预期可收回的金额。
6. Bank Reconciliation Walkthrough | 银行对账演练
Sample: The cash book shows a debit balance of £2,300. The bank statement shows a credit balance of £2,580. Upon checking, you find: unpresented cheques £400, uncredited deposits £150, bank charges £30 not in the cash book. Calculate the adjusted cash book balance and prepare a bank reconciliation statement.
示例：现金簿显示借方余额2,300英镑，银行对账单显示贷方余额2,580英镑。经核对发现：未兑现支票400英镑，未贷记存款150英镑，银行手续费30英镑未记入现金簿。计算调整后现金簿余额并编制银行对账单调节表。
First, adjust the cash book for the bank charges: deduct £30, so adjusted cash book balance = £2,300 – £30 = £2,270. Now reconcile to bank statement: start with bank statement balance £2,580, add uncredited deposits £150, subtract unpresented cheques £400, giving £2,580 + £150 – £400 = £2,330. There is still a difference of £60 (£2,330 vs £2,270). That indicates another error, perhaps a previously recorded item. In exam questions, you would then locate the remaining discrepancy.
首先，调整现金簿中的银行手续费：减去30英镑，调整后现金簿余额 = 2,300 – 30 = 2,270英镑。然后与银行对账单调节：银行对账单余额2,580 + 未贷记存款150 – 未兑现支票400 = 2,330英镑。尚存差额60英镑（2,330 – 2,270），说明另有差错，可能在之前记录中。
Updated Cash Book Balance = Original Cash Book ± Adjustments
7. Income Statement Adjustments and Layout | 利润表调整与格式
Sample data: Sales £120,000, opening inventory £10,000, purchases £65,000, closing inventory £8,000, carriage inwards £2,000, wages £15,000, rent £6,000. Prepare the trading account and the profit and loss account to find gross profit and net profit.
示例数据：销售收入120,000英镑，期初存货10,000英镑，购货65,000英镑，期末存货8,000英镑，购货运费2,000英镑，工资15,000英镑，租金6,000英镑。编制营业账户与损益账户，计算毛利润和净利润。
Trading account: Sales £120,000 less Cost of sales: opening inventory £10,000 + purchases £65,000 + carriage inwards £2,000 – closing inventory £8,000 = £69,000. Gross profit = £120,000 – £69,000 = £51,000.
营业账户：销售收入120,000减去销售成本：期初存货10,000 + 购货65,000 + 购货运费2,000 – 期末存货8,000 = 69,000英镑。毛利润 = 120,000 – 69,000 = 51,000英镑。
Profit and loss: Gross profit £51,000 less expenses: wages £15,000 + rent £6,000 = £21,000. Net profit = £30,000.
损益账户：毛利润51,000减去费用：工资15,000 + 租金6,000 = 21,000英镑。净利润 = 30,000英镑。
8. Statement of Financial Position Essentials | 资产负债表要点
Using the previous data plus capital at start £50,000, drawings £5,000, trade receivables £18,000, trade payables £12,000, cash £4,000, non-current assets £60,000. Prepare the statement of financial position.
沿用前述数据，外加期初资本50,000英镑，提用5,000英镑，应收账款18,000英镑，应付账款12,000英镑，现金4,000英镑，非流动资产60,000英镑。编制资产负债表。
First, calculate closing capital: Opening capital £50,000 + net profit £30,000 – drawings £5,000 = £75,000. Non-current assets £60,000. Current assets: inventory £8,000 + trade receivables £18,000 + cash £4,000 = £30,000. Current liabilities: trade payables £12,000. Net current assets = £18,000. Total assets less current liabilities = £78,000, which equals closing capital £75,000 plus perhaps other liabilities. Here no long-term liabilities, so capital £75,000 does not match £78,000. The difference suggests an error—this highlights the need to double-check that capital equals assets minus liabilities.
首先计算期末资本：期初资本50,000 + 净利润30,000 – 提用5,000 = 75,000英镑。非流动资产60,000英镑。流动资产：存货8,000 + 应收账款18,000 + 现金4,000 = 30,000英镑。流动负债：应付账款12,000英镑。净流动资产 = 18,000英镑。总资产减流动负债 = 78,000英镑，然而资本为75,000英镑，差额3,000英镑说明有错误。在模拟考中务必核验资产负债表等式：资产 = 资本 + 负债。
Capital = Assets – Liabilities
9. Interpreting Profitability Ratios | 解读盈利能力比率
Sample: Gross profit £51,000, net profit £30,000, sales £120,000, capital employed £75,000. Calculate gross profit margin, net profit margin, and return on capital employed (ROCE).
示例：毛利润51,000英镑，净利润30,000英镑，销售收入120,000英镑，动用资本75,000英镑。计算毛利率、净利率及运用资本报酬率（ROCE）。
Gross profit margin = (£51,000 ÷ £120,000) × 100% = 42.5%. Net profit margin = (£30,000 ÷ £120,000) × 100% = 25%. ROCE = (Net profit ÷ Capital employed) × 100% = 40%. These ratios indicate strong profitability.
毛利率 = (51,000 ÷ 120,000) × 100% = 42.5%。净利率 = (30,000 ÷ 120,000) × 100% = 25%。ROCE = (30,000 ÷ 75,000) × 100% = 40%。这些比率显示较强的盈利能力。
Comparing ratios to previous periods or industry averages helps assess performance. A declining gross margin could mean higher cost of sales without a corresponding price rise, so management must investigate.
将比率与前期或行业均值比较，有助于评估业绩。毛利率下降可能意味着销售成本上升而售价未相应提高，管理层应深入调查原因。
10. Liquidity and Efficiency Analysis | 流动性及效率分析
Sample: Current assets £30,000, current liabilities £12,000, inventory £8,000, trade receivables £18,000, credit sales £100,000. Calculate current ratio, acid test ratio, inventory turnover (days), and trade receivables collection period.
示例：流动资产30,000英镑，流动负债12,000英镑，存货8,000英镑，应收账款18,000英镑，赊销收入100,000英镑。计算流动比率、酸性测试比率、存货周转天数及应收账款回款期。
Current ratio = £30,000 ÷ £12,000 = 2.5 : 1. Acid test = (£30,000 – £8,000) ÷ £12,000 = £22,000 ÷ £12,000 ≈ 1.83 : 1. Both ratios suggest sufficient liquidity.
流动比率 = 30,000 ÷ 12,000 = 2.5 : 1。酸性测试比率 = (30,000 – 8,000) ÷ 12,000 = 1.83 : 1。两者均显示流动性充裕。
Inventory turnover = (Cost of sales ÷ Average inventory) but here using closing inventory, turnover = £69,000 ÷ £8,000 = 8.625 times; days = 365 ÷ 8.625 ≈ 42.3 days. Trade receivable days = (Trade receivables ÷ Credit sales) × 365 = (£18,000 ÷ £100,000) × 365 = 65.7 days. These efficiency metrics help spot slow-moving inventory or collection issues.
存货周转率 = 销售成本 ÷ 平均存货，此处用期末存货，周转次数 = 69,000 ÷ 8,000 = 8.625次；周转天数 = 365 ÷ 8.625 ≈ 42.3天。应收账款天数 = (18,000 ÷ 100,000) × 365 = 65.7天。这些效率指标有助于发现滞销存货或回款问题。
Published by TutorHao | Accounting Revision Series | aleveler.com
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