📚 Engineering Admissions Assessment 2018 Section 1 Question Paper | 2018工程入学评估第一部分试卷解析
The Engineering Admissions Assessment (EAA) is used by the University of Cambridge to evaluate applicants for Engineering. The 2018 Section 1 paper is a multiple-choice test that focuses on core mathematics and physics skills. This article explains the structure, question style, common pitfalls, and preparation strategies for Section 1, using original worked examples written in the same style as the assessment.
工程入学评估（EAA）是剑桥大学用于选拔工程专业申请者的考试。2018年第一部分试卷是一套多项选择题，重点考查核心数学和物理技能。本文解析第一部分的结构、题型风格、常见误区与备考策略，并提供与真题风格一致的原创例题解析。
1. Overview of the Paper | 试卷概览
Section 1 of the 2018 EAA is a 60-minute assessment consisting of 40 multiple-choice questions. It is divided equally between mathematics and physics, with each subject contributing 20 questions. All questions are single-answer multiple choice with four or five options. The paper is designed to test speed, accuracy, and the ability to apply fundamental concepts under time pressure. No calculator is allowed, which means answers must be worked out using mental arithmetic and algebraic manipulation.
2018年EAA第一部分考试时长60分钟，共40道多项选择题。数学与物理各占一半，每科20题。所有题目均为单项选择，备选项为四到五个。试卷旨在考查速度、准确性以及在时间压力下应用基本概念的能力。考试不允许使用计算器，因此必须通过心算和代数运算得出答案。
2. Structure and Timing | 结构与时间分配
The 40 questions are presented in a mixed or grouped order, but the mathematics and physics items are usually distinguishable by content. Candidates have roughly 90 seconds per question. Many questions can be solved in under a minute with efficient techniques, while others require careful reading of units or diagrams. A common strategy is to complete the easier mathematics questions first, then move to physics questions that involve more reading or calculation.
40道题以混合或分组形式呈现，但数学和物理题目通常可通过内容区分。考生平均每题约有90秒。许多题目可用高效技巧在一分钟内完成，而另一些则需要仔细阅读单位或图示。常见策略是先完成较简单的数学题，再处理需要更多阅读或计算的物理题。
3. Mathematics Topics Assessed | 数学考查范围
The mathematics questions in Section 1 cover algebra, functions, coordinate geometry, trigonometry, sequences and series, exponentials and logarithms, differentiation and integration, and basic probability. Knowledge from A-level Mathematics (both pure and applied) forms the foundation. Questions often require simplifying expressions, solving equations, interpreting graphs, and applying standard results such as the quadratic formula or trigonometric identities.
第一部分数学题涵盖代数、函数、坐标几何、三角学、数列与级数、指数与对数、微分与积分以及基础概率。A-level数学（纯数与部分应用）的知识构成基础。题目常要求化简表达式、解方程、解读图像，并应用二次公式或三角恒等式等标准结论。
4. Physics Topics Assessed | 物理考查范围
The physics questions test mechanics, electricity and circuits, waves, thermal physics, materials, and simple fields. Typical tasks include resolving forces, applying Newton’s laws, calculating current and voltage in circuits, using wave equations such as v = fλ, and interpreting stress–strain curves. The emphasis is on applying formulas and physical reasoning rather than recalling detailed experimental procedures.
物理题考查力学、电路、波、热学、材料以及简单的场。典型任务包括力的分解、应用牛顿定律、计算电路中的电流与电压、使用波动方程（如v = fλ）以及解读应力–应变曲线。重点在于应用公式和物理推理，而非回忆详细的实验步骤。
5. Question Style and Difficulty | 题型风格与难度
Each question is self-contained and often includes a diagram, graph, or numerical data. The wording is concise but can hide subtle traps, such as unit conversions or sign conventions. The difficulty ranges from straightforward recall to multi-step problem solving. In the 2018 paper, many candidates found the later physics questions more time-consuming because they require combining two or more concepts.
每道题独立呈现，通常配有图示、图表或数值数据。题干简洁但可能隐藏单位换算或符号约定等陷阱。难度从直接回忆到多步骤问题解决不等。在2018年试卷中，许多考生认为后面的物理题更耗时，因为需要结合两个或更多概念。
6. Sample Question 1: Simplifying an Algebraic Expression | 样题一：代数表达式化简
Consider a question modelled on the style of Section 1: “If x = 3, evaluate (2x² − 5x + 1) / (x − 2).” Substituting x = 3 gives (2×9 − 15 + 1) / (1) = 4, so the answer is 4. A common error is to cancel terms incorrectly before substituting; always substitute carefully and check the denominator is not zero.
考虑一道仿照第一部分风格的题目：“若x = 3，求(2x² − 5x + 1) / (x − 2)的值。”代入x = 3得到(2×9 − 15 + 1) / (1) = 4，因此答案为4。常见错误是在代入前错误地约分；务必仔细代入并检查分母是否为零。
7. Sample Question 2: Resolving Forces on a Slope | 样题二：斜面上的受力分析
Another typical example: “A block of mass 2 kg rests on a smooth plane inclined at 30° to the horizontal. What is the component of its weight parallel to the plane? (Take g = 10 m s⁻²).” The weight is mg = 20 N, and the parallel component is mg sin θ = 20 × ½ = 10 N. Many students mistakenly use cos θ or forget to multiply by g.
另一个典型例子：“质量为2 kg的物块静止在倾角为30°的光滑斜面上。其重力沿斜面方向的分力是多少？（取g = 10 m s⁻²）”重力为mg = 20 N，平行分量为mg sin θ = 20 × ½ = 10 N。许多学生误用cos θ或忘记乘以g。
8. Sample Question 3: Circuit Analysis | 样题三：电路分析
A third example: “Two resistors of 4 Ω and 6 Ω are connected in parallel across a 12 V battery. What is the total current drawn from the battery?” The equivalent resistance is (4 × 6)/(4 + 6) = 2.4 Ω, so the current is I = V/R = 12/2.4 = 5 A. A common mistake is to add the resistances in series instead of using the parallel formula.
第三个例子：“4 Ω和6 Ω的两个电阻并联后接在12 V电池两端。从电池流出的总电流是多少？”等效电阻为(4 × 6)/(4 + 6) = 2.4 Ω，因此电流为I = V/R = 12/2.4 = 5 A。常见错误是将电阻按串联相加，而不是使用并联公式。
9. Common Pitfalls and Misconceptions | 常见误区与易错点
Candidates often lose marks from careless unit conversion, especially between mm² and m² for stress and strain calculations. Another pitfall is assuming that all motion is in one dimension; vector components must be handled separately for forces and velocities. Sign errors in trigonometry, particularly when an angle is measured from the vertical, also reduce scores. Finally, many students rush through the first ten questions and make arithmetic slips that could be avoided with a quick check.
考生常因单位换算粗心而失分，特别是在应力和应变计算中mm²与m²之间的换算。另一个误区是假设所有运动都是一维的；力和速度的矢量分量必须分别处理。三角函数的符号错误，尤其是当角度从竖直方向测量时，也会降低得分。最后，许多学生匆忙完成前十题，导致本可通过快速检查避免的算术失误。
10. Time Management Strategies | 时间管理策略
Because the paper allows no calculator and no formula sheet, efficient mental maths is crucial. Start by scanning the paper and answering the questions you find easiest. For each question, read the final line first to know what is being asked, then extract only the relevant data. If a question takes more than two minutes, mark it and move on. Use the remaining time to revisit flagged items and verify answers by estimation or dimensional analysis.
由于考试不允许使用计算器或公式表，高效的心算至关重要。先浏览试卷并回答你认为最容易的题目。对于每道题，先读最后一行以明确所求，然后只提取相关数据。如果一道题超过两分钟，做好标记后继续。利用剩余时间回顾标记的题目，并通过估算或量纲分析验证答案。
11. Preparation Tips | 备考建议
To prepare for Section 1, practise past papers under timed conditions and review every mistake in detail. Build a personal formula sheet of frequently used results, such as sin² θ + cos² θ = 1 and the quadratic formula, but memorise them because no sheet is provided. Work on mental arithmetic and estimation, for example by calculating percentages and reciprocals quickly. For physics, focus on applying principles to unfamiliar contexts, as the 2018 paper included several novel applications of standard ideas.
为准备第一部分，应在限时条件下练习往年试卷，并详细分析每一个错误。制作一份常用结论的个人公式表，例如sin² θ + cos² θ = 1和二次公式，但必须熟记，因为考试不提供公式表。练习心算和估算，例如快速计算百分比和倒数。对于物理，重点是将原理应用于不熟悉的情境，因为2018年试卷包含若干标准概念的创新应用。
12. Conclusion | 结语
The 2018 EAA Section 1 paper rewards candidates who combine strong conceptual understanding with quick, accurate execution. By mastering the core A-level syllabus, practising mental maths daily, and learning from common errors, you can approach the test with confidence. Remember that every question carries equal weight, so avoid getting stuck on a single difficult item and maintain a steady pace throughout the hour.
2018年EAA第一部分试卷奖励那些将扎实的概念理解与快速、准确的执行能力相结合的考生。通过掌握A-level核心课程、每天练习心算并从常见错误中学习，你可以自信地应对考试。请记住每道题分值相同，因此不要纠结于某一道难题，而要在整个小时内保持稳定的答题节奏。
Published by TutorHao | Engineering Revision Series | aleveler.com
更多咨询请联系16621398022（同微信）
屏轩国际教育cambridge primary/secondary checkpoint, cat4, ukiset,ukcat,igcse,alevel,PAT,STEP,MAT, ibdp,ap,ssat,sat,sat2课程辅导，国外大学本科硕士研究生博士课程论文辅导Cancel reply