Cambridge IGCSE · 分析与预测
2025 Cambridge IGCSE Science - Combined (0653) 历年真题分析与预测
A comprehensive analysis of the Cambridge IGCSE Combined Science (0653) October/November 2025 examination, spanning MCQ, theory, and practical components. The paper displays a balanced distribution of basic recall and multi-step quantitative applications across Biology, Chemistry, and Physics.
更新: 2026年6月13日
分析模拟试题
难度 3.2/5
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
- Incorrect rounding or failure to quote calculated answers to two decimal places or two significant figures where specified (such as rate or resistance calculations).
- Omitting key units or using incorrect units, especially matching Hz with GHz or expressing acceleration as m/s instead of m/s².
- Mislabeling diagrams or incorrectly orienting arrows in food webs, pointing away from the predator instead of the direction of energy flow.
常见误区
- Believing that viruses can be eradicated with antibiotic treatments, ignoring that antibiotics are strictly targeted to bacteria.
- Assuming alloys have a regular layer arrangement that slides easily, rather than understanding that different-sized atoms disrupt the lattice.
失分原因
- Forgetting to plot more than half the grid during graph-drawing tasks, losing critical marks for scale selection.
- Failing to write down intermediate math steps in physics equations, losing error-carried-forward (ECF) marks.
等级分数线估算
更新: 2026年6月13日
| 等级 | 分数 | 百分比 |
|---|---|---|
| A* | 151/200 | 76% |
| A | 127/200 | 64% |
| B | 103/200 | 52% |
| C | 80/200 | 40% |
| D | 70/200 | 35% |
| E | 60/200 | 30% |
Official grade boundaries published by Cambridge IGCSE grade thresholds (official).
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