📚 IGCSE Cambridge Engineering: Exam Technique and Mark Scheme Guide | IGCSE 剑桥工程：答题技巧与评分标准
In Cambridge IGCSE Engineering, many candidates lose marks not because they lack subject knowledge, but because they misread command words, skip stages of a calculation or fail to match their answer to the marking criteria. This guide breaks down the key exam techniques and mark scheme conventions that can turn a good answer into a full-mark answer.
在剑桥 IGCSE 工程考试中，很多考生失分并非因为知识不足，而是因为读错指令词、跳过计算步骤或答案不符合评分标准。本指南将拆解关键答题技巧与评分规则，帮助你把不错的答案变成满分答案。
1. Understanding Command Words | 理解指令词
Command words tell you exactly what the examiner expects. In IGCSE Engineering, the most common command words are 'state', 'describe', 'explain', 'calculate', 'suggest', 'justify' and 'evaluate'. Each command word requires a different depth of answer.
指令词告诉你考官究竟想要什么。IGCSE 工程中常见的指令词包括 'state'（写出）、'describe'（描述）、'explain'（解释）、'calculate'（计算）、'suggest'（建议）、'justify'（论证）和 'evaluate'（评价）。每个指令词要求的答案深度不同。
For 'state', a short factual answer is enough, such as 'State one property of mild steel: it is ductile.' For 'describe', add sequenced details, for example 'Describe how a thermistor changes: as temperature rises, its resistance falls.'
对于 'state'，简短的事实答案即可，例如 '写出低碳钢的一种性能：它具有延展性'。对于 'describe'，需要按顺序补充细节，例如 '描述热敏电阻如何变化：温度升高时，电阻下降'。
'Explain' requires a reason or cause. If a question asks 'Explain why the drill bit becomes hot', you must link friction, work done and thermal energy, not just say '
Published by TutorHao | IGCSE 工程 Revision Series | aleveler.com
更多咨询请联系16621398022（同微信）
或截图后用「扫一扫 → 相册」选择本图