Cambridge IGCSE · 分析与预测
2023 Cambridge IGCSE Science - Combined (0653) 历年真题分析与预测
A balanced and robust evaluation of candidates' foundational knowledge and practical skills across Biology, Chemistry, and Physics. The papers maintain an even distribution between core theory, calculation capability, and experimental planning.
更新: 2026年6月13日
分析模拟试题
难度 3.0/5
总分
160
时间
180 分钟
最高频考点
—
分卷
卷二: 選擇題 (Extended): 40 分 · 45 分钟Paper 4: Theory (Extended): 80 分 · 75 分钟Paper 6: Alternative to Practical: 40 分 · 60 分钟
考官重点
官方报告整理常见失分点
- Drawing multiple, sketchy lines for curves of best fit instead of a single smooth curve.
- Omitting the correct precision of decimal places (e.g. writing 41 instead of 41.0) when reading values from scales.
- Incorrect rearrangement of simple equations like density or speed-time relationships.
- Failing to convert time units (e.g. 4 h 15 min to 4.25 h, or minutes to seconds) before plugging into physics formula.
常见误区
- Believing that tap water is a pure substance rather than a solution of dissolved solids.
- Believing that fertilisation in humans takes place in the uterus rather than the oviducts.
- Confusing the functions of goblet cells and ciliated cells, thinking that goblet cells move the mucus.
- Thinking that water vapour exits the stomata via active transpiration or evaporation rather than diffusion.
失分原因
- Losing marks on ray diagrams because the line did not start exactly at position Y or didn't pass through the principal focus.
- Inability to state the correct units for calculations, such as forgetting the unit for resistance (ohms/Ω) or pressure (Pa).
- Providing vague answers like 'avoid contamination' instead of explaining why a clean glass rod prevents the transfer of enzymes.
- Stating that the offspring of sexual reproduction are 'non-identical' without specifying that there are genetic differences.
等级分数线估算
更新: 2026年6月13日
| 等级 | 分数 | 百分比 |
|---|---|---|
| A* | 148/200 | 74% |
| A | 124/200 | 62% |
| B | 100/200 | 50% |
| C | 77/200 | 39% |
| D | 66/200 | 33% |
| E | 56/200 | 28% |
Official grade boundaries published by Cambridge IGCSE grade thresholds (official).
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