📚 Exam Techniques and Marking Criteria | 答题技巧与评分标准
Success in SQA Engineering assessments depends not only on knowing the subject content but also on understanding how marks are awarded. This guide will walk you through essential exam techniques and explain the marking criteria so you can present your answers clearly and score as many marks as possible.
在SQA工程评估中取得成功，不仅取决于你对学科内容的掌握，还取决于你如何理解评分规则。本指南将为你介绍关键的答题技巧并说明评分标准，帮助你清晰呈现答案，尽量多拿分。
1. Understanding Command Words | 理解指令词
Every question in an SQA Engineering paper uses a command word that tells you exactly what type of answer to give. Words like ‘state’, ‘describe’, ‘explain’, ‘calculate’, ‘compare’ and ‘evaluate’ all require different depths of response. Misreading a command word is one of the most common reasons for losing marks.
SQA工程试卷中的每一道题都会使用一个指令词，明确告诉你需要给出什么类型的答案。“陈述”、“描述”、“解释”、“计算”、“比较”和“评估”等词要求的回答深度各不相同。误读指令词是丢分最常见的原因之一。
For example, ‘State one safety precaution’ needs a short fact, such as ‘Wear safety goggles’. However, ‘Explain why this precaution is important’ would require you to give a reason, such as ‘Wearing safety goggles prevents flying debris from injuring the eyes, which could cause permanent damage.’
例如，“陈述一项安全预防措施”只需给出一个简短事实，如“戴护目镜”。但“解释为什么这项预防措施很重要”则需要给出理由，如“戴护目镜可以防止飞溅的碎屑伤害眼睛，避免造成永久性损伤”。
The table below summarises common SQA command words and their expectations:
下表总结了常见的SQA指令词及其要求：
| Command Word | 指令词 | What Is Expected | 期望的答案 |
|---|---|---|---|
| State / Identify | 陈述 / 识别 | Short, factual answer; no explanation needed. | 简短事实；无需解释。 |
| Describe | 描述 | Give a detailed account of what something looks like or how it works. | 详细描述某物的外观或工作原理。 |
| Explain | 解释 | Give reasons, causes or mechanisms. | 给出原因、起因或机制。 |
| Calculate | 计算 | Work out a numerical answer, showing all steps. | 算出数值结果，展示所有步骤。 |
| Compare | 比较 | Identify similarities and differences. | 指出相似点和不同点。 |
| Evaluate | 评估 | Make a judgement, giving pros and cons. | 做出判断，给出优缺点。 |
Always underline or circle the command word before you start writing, and tailor your answer exactly to that instruction.
在动笔前，务必把指令词圈出来，并严格按照那个指令来组织答案。
2. Reading the Question Carefully | 仔细审题
Many students lose marks because they answer the question they thought they read, rather than the one actually on the paper. Take time to read every part of the question, including any data, diagrams or bullet points. Highlight key information such as numbers, units, and materials.
很多学生丢分是因为他们回答的是自己以为读到的题目，而不是试卷上真正的题目。花时间读完题目的每一部分，包括任何数据、图表或项目符号。高亮标出数字、单位和材料等关键信息。
For instance, a question might state: ‘A steel beam is 2.5 m long and supported at both ends. A load of 500 N is applied at its centre. Calculate the reaction forces.’ The words ‘steel’, ‘2.5 m’, ‘500 N’ and ‘centre’ are all essential pieces of information you must use.
例如，一道题可能说：“一根钢梁长2.5 m，两端支撑。中心处施加500 N的载荷。计算反作用力。”“钢”、“2.5 m”、“500 N”和“中心”这些词都是必须用到的重要信息。
If the question includes a diagram, study it closely. Dimensions, symbols and labels often contain clues about which formula or principle to apply.
如果题目包含图表，要仔细研究。尺寸、符号和标注经常包含该用哪个公式或原理的线索。
3. Using Technical Vocabulary | 使用专业术语
Mark schemes in Engineering allocate marks for correct use of subject-specific terminology. Words like ‘tensile strength’, ‘gear ratio’, ‘voltage’, ‘current’, ‘resistor’, ‘circuit’, ‘load’ and ‘stress’ must be spelled correctly and used in the right context. Examiners are looking for evidence that you can ‘talk like an engineer’.
工程科目的评分方案会把分数分配给学科术语的正确使用。“抗拉强度”、“齿轮比”、“电压”、“电流”、“电阻器”、“电路”、“载荷”和“应力”等词必须拼写正确并用于恰当的语境。考官希望看到你能“像工程师一样表达”。
Avoid vague language. Instead of writing ‘the thing that stops the current’, write ‘the resistor limits the current flow’. Instead of ‘the force pulling the material’, write ‘tensile stress’. This precision immediately shows the marker you understand the concept.
避免模糊的语言。不要写“那个阻止电流的东西”，而应写“电阻器限制电流流动”。不要写“拉材料的那个力”，而应写“拉应力”。这种精确性会立即向评分人表明你理解该概念。
4. Showing Your Working in Calculations | 计算题展示步骤
Calculation questions carry several marks, and the marks are usually broken down into: selecting the correct formula, substituting the right values, obtaining the correct numerical answer, and including the correct unit. Even if you get the final answer wrong, you can still earn most of the marks by showing clear working.
计算题包含多个分数，分数通常分解为：选择正确的公式、代入正确的数值、得出正确的数字结果、以及给出正确的单位。即使最终答案错误，通过展示清晰的步骤你仍然能拿到大部分分数。
Always follow this structure:
永远遵循以下结构：
1. Write the formula you will use, e.g. F = m × a or V = I × R.
1. 写下你要用的公式，例如 力 = 质量 × 加速度 或 电压 = 电流 × 电阻。
2. Substitute the values from the question, keeping units visible: F = 4 kg × 3 m/s².
2. 代入题目中的数值，保留单位可见：力 = 4 kg × 3 m/s²。
3. Perform the calculation and write the answer clearly: F = 12 N.
3. 进行计算并清晰地写出答案：力 = 12 N。
4. Check that the unit matches the quantity (force in newtons, energy in joules, etc.).
4. 检查单位与物理量是否匹配（力用牛顿，能量用焦耳等）。
Here is a worked example using Ohm’s law:
以下是一个运用欧姆定律的解答示例：
V = I × R
I = 2 A, R = 10 Ω → V = 2 A × 10 Ω = 20 V
I = 2 A, R = 10 Ω → V = 2 A × 10 Ω = 20 V
Notice how the units are carried through the calculation. If you change units, show that step too, e.g. converting mA to A.
请注意单位是如何在计算中传递的。如果你要换算单位，也需展示这一步，例如将毫安转换为安培。
5. Units and Significant Figures | 单位与有效数字
Missing or incorrect units are a very common reason for losing marks in Engineering. Always state the unit beside every numerical answer. If the question provides data in grams, but the formula requires kilograms, you must convert: 500 g = 0.5 kg.
缺失或错误的单位是工程考试中丢分的一个非常常见的原因。务必在每个数字答案旁写上单位。如果题目给出的数据以克为单位，但公式要求用千克，就必须换算：500 g = 0.5 kg。
SQA questions may also ask you to give your answer to an appropriate number of significant figures. As a rule of thumb, use the same number of significant figures as the least precise piece of data in the question. If the numbers given are 2.0 m and 5.25 s, your answer should be given to 2 significant figures, because 2.0 has only two.
SQA的题目还可能要求你以合适数量的有效数字给出答案。一个经验法则是，与题目中最不精确的数据保持相同有效数字位数。如果给出的数字是2.0 m和5.25 s，那么答案应保留2位有效数字，因为2.0只有两位。
Common base units and their symbols:
常见基本单位及其符号：
| Quantity | 物理量 | Unit (Symbol) | 单位（符号） |
|---|---|---|---|
| Length | 长度 | metre (m) | 米 (m) |
| Mass | 质量 | kilogram (kg) | 千克 (kg) |
| Time | 时间 | second (s) | 秒 (s) |
| Force | 力 | newton (N) | 牛顿 (N) |
| Energy | 能量 | joule (J) | 焦耳 (J) |
| Voltage | 电压 | volt (V) | 伏特 (V) |
| Current | 电流 | ampere (A) | 安培 (A) |
6. Diagrams and Annotations | 图形与标注
Some Engineering questions require you to draw or complete a diagram, such as a circuit, a force diagram, or a simple design sketch. Neatness and accuracy matter. Use a pencil and ruler for all straight lines, and draw symbols correctly (e.g. a resistor as a rectangle, not a squiggle, unless specified).
有些工程题要求你绘制或补全示意图，如电路图、受力图或简单的设计草图。整洁和准确性很重要。所有直线要用铅笔和直尺绘制，并正确画出符号（例如电阻器画成矩形，除非另有说明，不要画成波浪线）。
Annotations are short labels that explain parts of your diagram. Markers award marks for correct annotations. If the question asks you to label ‘the direction of the force’, draw an arrow and write ‘Force (F)’ beside it. If you add too much text it becomes messy; keep labels brief but precise.
标注是解释图形各部分的简短标签。评分人会为正确的标注给分。如果题目要求你标注“力的方向”，就画一个箭头，并在旁边写上“力 (F)”。如果添加过多文字会显得凌乱；保持标签简短而精确。
Always refer back to the question to see what must be labelled. A common mistake is to label something that was already given, which wastes time and does not earn extra marks.
一定要回到题目中看清哪些内容需要标注。一个常见错误是给已经给出的部分做标注，这既浪费时间又拿不到额外分数。
7. Managing Your Time | 时间管理
The total marks for an SQA Engineering paper are usually proportional to the time allowed. As a rough guide, you should spend about one minute per mark. For example, a 4-mark question should take you around 4 minutes. Do not spend 15 minutes on a 2-mark question.
SQA工程试卷的总分值通常与规定时间成比例。一条粗略的参考是，每分花费大约一分钟。例如，一道4分的题应该用大约4分钟。不要在一道2分的题上花15分钟。
At the start of the exam, scan the whole paper. Start with the questions you find easiest – this builds confidence and secures early marks. Leave the hardest questions until the end. If you get stuck on a part, put a star next to it and move on; you can return if you have time.
考试开始时，快速浏览整张试卷。从你觉得最简单的题目入手——这会建立信心并确保尽早拿分。把最难的题留到最后。如果某部分卡住了，在旁边标个星号然后继续；有时间再回来做。
Keep a clock or watch visible and check your progress every 15 minutes. Adjust your pace if needed. It is better to have answered all questions partially than to leave a whole section blank.
让时钟或手表在视线范围内，每15分钟检查一下进度。必要时调整节奏。宁可所有题目都答了一部分，也不要把整个板块空着。
8. Checking Your Answers | 检查答案
If you finish before the time is up, use the remaining minutes to check your work. Check calculation steps: did you use the right formula? Did you substitute values in the correct order? Did you write the correct unit? Also look for careless spelling mistakes in technical terms.
如果你提前完成，利用剩余的时间检查你的答案。检查计算步骤：公式用对了吗？
Published by TutorHao | Year 7 工程 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