📚 AS CIE Science: 2026 Exam Changes and Trends | 2026年AS CIE科学：考试变化与趋势
The 2026 examination series for Cambridge International AS Level Sciences brings a range of subtle yet significant shifts in syllabus content, assessment structure, and practical skills emphasis. Whether you are preparing for Biology (9700), Chemistry (9701), or Physics (9702), understanding these changes early can give you a crucial advantage. This article summarises the key trends, question style updates, and essential skills required for success in 2026 and beyond.
2026年剑桥国际AS阶段科学科目的考试在考纲内容、评估结构和实验技能侧重点方面都进行了一系列微妙而重要的调整。无论你备考的是生物（9700）、化学（9701）还是物理（9702），尽早理解这些变化将带给你关键的优势。本文总结了关键趋势、题型更新以及2026年及以后取得好成绩所需的核心技能。
1. Syllabus Updates and Code Continuity | 考纲更新与科目代码延续
Cambridge has retained the familiar syllabus codes — 9700 for Biology, 9701 for Chemistry, and 9702 for Physics — but the content has been refined for the 2025–2027 examination cycle. Learners sitting exams in 2026 will be assessed against the updated syllabuses that debuted in 2025. Key topics have been amended to improve clarity, reduce overlap, and align more closely with current scientific research and pedagogical priorities.
剑桥保留了大家熟悉的科目代码——生物9700、化学9701、物理9702——但针对2025–2027考试周期对内容进行了精炼。2026年参加考试的学生将按照2025年首次推出的更新版考纲接受评估。为了提升清晰度、减少重叠并更紧密地对接当前科学研究和教学重点，一些关键课题已被修订。
- The number of subject content sections has been reorganised; for example, Biology now presents 'Gas exchange' and 'Transport in animals' as clearly separated units.
- 学科内容板块的数量被重新编排；例如，生物科目现在将“气体交换”和“动物体内的运输”明确划分成独立单元。
- Chemistry includes updates to chemical bonding descriptors and the introduction of more precise wording for enthalpy changes and electrode potentials.
- 化学对化学键的描述进行了更新，并在焓变和电极电势部分引入了更精确的用语。
- Physics has revised the treatment of waves and quantum phenomena to better bridge with the full A Level course.
- 物理调整了波和量子现象的处理方式，以便与完整的A Level课程更好地衔接。
2. Assessment Objective Rebalancing | 评估目标的权重再平衡
CIE has subtly adjusted the weighting of Assessment Objectives (AOs) across all three sciences. AO1 (Knowledge with understanding) now carries slightly less weight, while AO2 (Handling information and problem-solving) and AO3 (Experimental skills and investigations) have been given greater emphasis. This means that simply recalling facts will earn fewer marks, and students must demonstrate deeper application and analysis.
CIE已经微妙地调整了三门科学科目中评估目标（AO）的权重。AO1（知识的理解）现在占的权重略低，而AO2（信息处理和问题解决）及AO3（实验技能与研究）得到了更多重视。这意味着仅靠回忆事实得到的分数会减少，学生必须展现出更深层次的应用和分析能力。
- In Paper 1 (Multiple Choice), more questions will require linking concepts or interpreting data from a brief scenario.
- 在Paper 1（选择题）中，更多题目将要求建立概念之间的联系或解读简短情景中的数据。
- Paper 2 (AS Structured Questions) will feature extended response elements that explicitly test AO2 skills.
- Paper 2（AS结构化问答题）将包含明确考查AO2技能的扩展回答要素。
3. Practical Assessment Evolution | 实验评估方式的演变
One of the most discussed changes is the evolution of the practical paper. Paper 3 (Advanced Practical Skills) remains a hands-on laboratory exam, but the question style has moved towards assessing understanding of experimental design, error analysis, and justification of procedures. Direct 'follow the recipe' tasks are becoming less frequent.
讨论最多的变化之一是实验卷的演变。Paper 3（高级实验技能）仍是动手操作的实验室考试，但出题风格已经转向评估学生对实验设计、误差分析以及步骤合理性的理解。直接“照单操作”的任务正变得越来越少。
nalysis questions now often require calculation of percentage uncertainty in a derived quantity using the rules for combining uncertainties, expressed with plain mathematical symbols like ΔT for temperature change and the formula (ΔT/T) × 100% for percentage uncertainty.
学生需要解释选择特定仪器的原因、如何控制变量以及最相关的安全注意事项是什么。数据分析题现在经常要求计算导出量的百分误差，运用误差合成规则，用数学符号表示，例如温度变化ΔT，百分误差公式(ΔT/T) × 100%。
4. Increased Emphasis on Mathematical Skills | 对数学技能更加重视
All three AS sciences now demand higher mathematical fluency. The minimum mathematical requirements have been raised, particularly in Physics and Chemistry. Learners must be comfortable with logarithmic functions (pH calculations), exponential relationships (radioactive decay or Arrhenius), and tangent-drawing for rate determination.
现在三门AS科学都对数学流利度提出了更高的要求。尤其是物理和化学，最低数学要求已经被提高。学生必须熟练掌握对数函数（pH计算）、指数关系（放射性衰变或阿伦尼乌斯公式）以及通过画切线测定速率。
| Subject | Additional Math Skills Expected from 2026 |
|---|---|
| Biology | Logarithms for serial dilutions, Chi-squared test calculations with expected frequencies, Simpson’s Index of Diversity. |
| Chemistry | Natural log (ln) for Arrhenius, calculating rates from concentration–time graphs, Gibbs free energy relationship ΔG = ΔH – TΔS. |
| Physics | Exponential decay equations like I = I₀e⁻ᵗ/ʳ, logarithmic plots to verify relationships, more complex vector resolution. |
这些增补意味着需要更多练习使用科学计算器和对数表。在2026年试卷中，典型的图形题可能要求你演示如何从衰减常数求得半衰期t½ = ln 2 / λ，而λ又根据ln(N/N₀) = -λt的斜率获得。
5. Command Words and Question Interpretation | 指令词与题目解读
CIE has standardised command terms across sciences. Words like 'State', 'Describe', 'Explain', 'Suggest', and 'Evaluate' now have precise, subject-specific meanings that candidates must follow. In 2026 papers, markschemes will penalise misaligned responses more consistently; for instance, 'Explain' requires a scientific mechanism with reasons, not just a description.
CIE已经在各科学科目间标准化了指令词。像“陈述”、“描述”、“解释”、“建议”和“评价”这类词语现在有精确的学科特定含义，考生必须遵循。在2026年试卷中，评分方案将更一致地惩罚答非所问的作答；比如，“解释”要求给出带理由的科学机制，而不仅仅是描述。
- 'Evaluate' questions will expect a balanced argument with supporting evidence, often ending with a justified conclusion.
- “评价”类问题要求学生提供有支持证据的平衡论点，通常要以有论据的结论收尾。
- 'Suggest' items may apply knowledge to unfamiliar contexts — a key skill tested more frequently from 2026.
- “建议”类题项可能将知识应用于陌生情境——从2026年起这是更频繁考查的关键技能。
6. Data-Based and Graphic Analysis Questions | 基于数据的图形分析题
A clear trend is the proliferation of questions built around unfamiliar data, graphs, or tables. These test the ability to extract information, recognise trends, and perform calculations. In Chemistry, mass spectra and NMR spectra (though limited at AS) are presented with more interpretation requirements. In Biology, light micrographs and genetic pedigree charts demand careful analysis.
一个明显趋势是围绕陌生数据、图表或表格构建的题目大量增加。这些题目考查提取信息、识别趋势和执行计算的能力。在化学中，质谱和核磁共振谱（尽管AS阶段有限）呈现时需要更多解读。生物中，光学显微图和遗传系谱图需要细致分析。
ight provide data for distance and final velocity, expecting candidates to recognise v² vs. s gives gradient 2a and intercept u². Clear understanding of graph linearization is essential.
对于物理，趋势包括从如v² = u² + 2as的方程中绘制线性关系。题目可能提供距离和末速度的数据，期望考生意识到v²与s的关系图给出斜率2a、截距u²。对图形线性化的清晰理解至关重要。
7. Removal of Redundant Content and Greater Depth | 删减冗余内容追求更深度理解
Some topics that previously led to superficial memorisation have been removed or reduced. In Chemistry, detailed recall of specific industrial processes (like the Contact process) has been trimmed; instead, the underlying equilibrium and rate principles are tested more deeply. In Biology, the classification of specific organisms has been rationalised to focus on evolutionary relationships.
一些之前导致浅层记忆背诵的主题已被删除或削减。在化学中，对特定工业流程（如接触法）的详细记忆已被删减；取而代之的是，深层的平衡和速率原理被更深入地考查。在生物中，特定生物的分类已合理精简，着重关注进化关系。
This shift rewards students who understand fundamental concepts and can apply them, rather than those who rely on rote learning. For 2026, expect each content statement to appear in more cognitively demanding question formats.
这一转变奖励那些理解基本概念并能加以应用的学生，而不是依赖死记硬背的学生。针对2026年，可以预见每个内容点都以更具认知要求的题型形式出现。
8. Integration of Contemporary Scientific Contexts | 融合当代科学情境
Exam questions increasingly incorporate scenarios drawn from recent scientific developments: CRISPR gene editing in Biology, graphene and battery technology in Chemistry, and renewable energy systems in Physics. These contexts are not add-on facts but serve as vehicles to test standard principles, such as enzyme specificity or conservation of energy.
考题越来越多地融入来自最新科学发展的情景：如生物中的CRISPR基因编辑、化学中的石墨烯与电池技术、物理中的可再生能源系统。这些情境不是附加事实，而是考查标准原理的载体，比如酶的特异性或能量守恒。
Candidates who are familiar with reading brief scientific articles or following science news may find it easier to decode the scenario quickly, but all required information will be provided in the question. The key trend is the emphasis on applying core knowledge to novel situations — a hallmark of 2026 papers.
熟悉阅读简短科学文章或关注科学新闻的考生可能更容易快速解读情景，但所有必需信息都会在题目中给出。关键趋势是强调将核心知识应用于新情境——这是2026年试卷的一个标志。
9. Paper Structure Stability with Subtle Tweaks | 试卷结构稳定中有微调
Overall paper formats remain consistent: Paper 1 (40 multiple-choice questions, 1 hour 15 minutes), Paper 2 (structured questions, 1 hour 15 minutes), and Paper 3 (practical, 2 hours). However, within Paper 2, the proportion of marks allocated to longer free‑response questions has increased slightly, especially in Physics. The number of parts in a single question stem has been capped to avoid fragmented assessments.
试卷整体格式保持一致：Paper 1（40道选择题，1小时15分钟）、Paper 2（结构化问答题，1小时15分钟）、Paper 3（实验，2小时）。然而，在Paper 2中，分配给较长自由回答题型的分数比例略微增加，尤其是在物理科目中。单个题干下的分题数量被设定了上限，以避免碎片化评估。
In the multiple-choice paper, candidates will notice a reduction in simple recall items and an increase in items that require multi-step reasoning or interpretation of a diagram. Mock exams from 2025 are the best predictors of the 2026 style.
在选择题试卷中，考生会注意到简单回忆性题目的减少，而需要多步推理或解读图表的题目增多。2025年的模拟考试是2026年风格的最佳风向标。
10. Preparation Strategies for the 2026 Candidate | 2026年考生的备考策略
To adapt to these changes, learners should prioritise practice with past papers from the 2025 session once they become available, paying close attention to examiner reports. Active recall remains useful but must be supplemented by frequent problem-solving under timed conditions. Building a 'mistake log' of common graph interpretation errors can be especially beneficial.
为适应这些变化，学生应优先利用2025年考季的历年真题练习（一旦可以获得），并仔细阅读考官报告。主动回忆仍然有用，但必须辅以限时条件下的频繁解题练习。建立一个常见图表解读错误的“错题日志”会特别有益。
Practical skills can be honed not only in the lab but also by analysing sample data, planning experiments from given hypotheses, and practicing the calculation of uncertainties. Regular use of the updated syllabus document as a checklist is strongly recommended to ensure no learning outcome is overlooked.
实验技能不仅可以在实验室中磨炼，还可以通过分析样本数据、根据给定假设设计实验及练习误差计算来提升。强烈建议定期使用更新版考纲作为核对清单，确保没有遗漏任何学习目标。
Published by TutorHao | Science 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