📚 AS CIE Biology: 2026 Exam Changes and Trends | AS CIE 生物：2026年考试变化与趋势
Starting from the 2025–2027 syllabus (code 9700), the Cambridge International AS Biology examination undergoes a series of refinements that will fully take effect in the June and November 2026 sessions. These updates are designed to align assessment with modern biological concepts, strengthen practical enquiry skills, and place greater emphasis on applying knowledge to unfamiliar contexts. Understanding these changes early will help students adjust their preparation and focus on the competencies that examiners will prioritise.
从 2025–2027 年教学大纲（代码 9700）开始，剑桥国际 AS 生物学考试将进行一系列调整，这些调整将在 2026 年夏季和冬季考季全面生效。此次更新旨在使评估与现代生物学概念接轨，强化实验探究技能，并更加注重将知识应用于陌生情境。尽早理解这些变化有助于学生调整备考策略，集中精力提升考官所看重的能力。
1. The New 2025–2027 Syllabus at a Glance | 2025–2027 年新大纲概览
The revised syllabus, first examined in 2025, reaches its full maturity in 2026. It retains the core AS topics but reorganises some sections and introduces subtle content shifts. The learning outcomes are now worded more explicitly, guiding teachers and learners towards higher-order thinking rather than pure recall. For 2026 candidates, this means question papers will reflect the finalised interpretation of the syllabus, with no transitional allowances from the old 2022–2024 version.
修订版大纲首次应用于 2025 年考试，到 2026 年完全成熟。它保留了 AS 阶段的核心主题，但重新组织了部分章节并引入了细微的内容偏移。如今学习成果的表述更为明确，引导师生向高阶思维发展，而非单纯记忆。对 2026 年考生而言，这意味着试卷将反映大纲的最终解读，不再有从旧版 2022–2024 大纲过渡的宽容空间。
2. Structural Stability with Subtle Weight Adjustments | 结构稳定，权重微调
The overall structure of AS Biology remains unchanged: Paper 1 (multiple choice, 40 marks, 1 hour 15 minutes), Paper 2 (structured questions, 60 marks, 1 hour 15 minutes) and Paper 3 (practical skills, 40 marks, 2 hours). However, the distribution of assessment objectives within these papers has been recalibrated. More marks in Paper 2 are now allocated to AO2 (application and analysis) and AO3 (evaluation and experimental design), reducing the proportion of straightforward AO1 recall questions.
AS 生物学的整体结构保持不变：试卷一（选择题，40 分，1 小时 15 分钟）、试卷二（结构化简答题，60 分，1 小时 15 分钟）和试卷三（实验技能，40 分，2 小时）。但试卷内部各评估目标的权重已重新校准。试卷二中更大比例的分数被分配给 AO2（应用与分析）和 AO3（评价与实验设计），降低了单纯考查 AO1 知识回忆题的比例。
3. Content Removed or Slimmed Down | 内容删减与精简
Several topics that previously required detailed memorisation have been trimmed. For instance, the elaborate classification of carbohydrate structures and the exhaustive naming of plant tissue types have been reduced in favour of functional understanding. The gas exchange topic no longer demands rote learning of smoking-related diseases; instead, it focuses on the principles of diffusion and ventilation. This creates room for deeper treatment of molecular biology.
一些过去需要详细记忆的话题已被精简。例如，碳水化合物结构的复杂分类和植物组织类型的详尽命名已被缩减，转而强调功能理解。气体交换主题不再要求机械记忆与吸烟有关的疾病，而是聚焦于扩散和通气的原理。这为更深入地学习分子生物学腾出了空间。
4. New and Expanded Content Areas | 新增与拓展内容
Conversely, the syllabus now includes more contemporary topics. A clearer emphasis is placed on epigenetics at an introductory level, the use of nucleic acid technology in disease screening, and the ethical implications of genetic manipulation. The concept of the microbiome and its role in immunity appears as an illustrative example. While these are not examined in exhaustive detail, students must be able to discuss their biological significance.
相应地，新大纲纳入了更多前沿话题。在入门水平上明显强化了表观遗传学、核酸技术在疾病筛查中的应用以及基因操作的伦理影响。微生物组的概念及其在免疫中的作用作为说明性示例出现。虽然这些内容不会以详尽细节进行考查，但学生必须能够讨论其生物学意义。
5. Practical Skills: From Observation to Investigation | 实验技能：从观察到探究
Paper 3 has evolved beyond following procedural instructions. The 2026 practical exam will more frequently present candidates with partial data sets, unexpected results, or flawed methods and ask them to suggest improvements, identify sources of error, and propose follow‑up investigations. Skills such as serial dilution planning, justifying the choice of statistical tests, and evaluating the reliability of biological drawings now carry higher weighting.
试卷三已经超越了单纯遵循步骤指令的阶段。2026 年的实验考试将更频繁地呈现部分数据集、意外结果或有缺陷的方法，要求考生提出改进方案、识别误差来源并建议后续探究。诸如连续稀释方案设计、证明统计检验选择的合理性以及评价生物绘图可靠性等技能现在占有更高比重。
6. Data Interpretation and Mathematical Demands | 数据解读与数学要求
There is a marked increase in the number of questions requiring students to handle quantitative data. Tables, line graphs, scatter plots and even logarithmic plots will appear more regularly. Students must be proficient in calculating rates, percentages, magnification, and performing basic statistical operations such as calculating means and interpreting standard deviation. The use of uncertainty and percentage error in biological measurements is now explicitly stated in the syllabus.
要求考生处理定量数据的题目数量显著增加。表格、折线图、散点图甚至对数图将更经常出现。学生必须熟练计算速率、百分比、放大倍数，并能进行基础统计操作，如计算平均值和解释标准差。不确定度和百分误差在生物测量中的应用现已在大纲中明确写出。
7. Command Words and the Nature of Questions | 指令词与题型性质
Examiners are shifting towards command words that demand synthesis: 'suggest', 'evaluate', 'discuss', and 'justify' will appear more frequently than 'state' or 'define'. In 2026, a typical Paper 2 question might ask candidates to evaluate a given experimental design and propose a more robust control, rather than simply recount the steps of an experiment. This trend rewards students who practice thinking like a biologist.
考官正转向要求综合能力的指令词：'suggest'、'evaluate'、'discuss' 和 'justify' 的出现频率将高于 'state' 或 'define'。在 2026 年，一道典型的试卷二题目可能会要求考生评价一个给定的实验设计并提出更稳健的对照方案，而不是简单复述实验步骤。这一趋势有利于那些练习像生物学家一样思考的学生。
8. Comparison: 2024 vs 2026 Papers | 对比：2024 与 2026 试卷
| Aspect | 2024 Exam (old syllabus) | 2026 Exam (new syllabus) |
|---|---|---|
| AO1 recall marks | ~40% of AS total | ~30% of AS total |
| Smoking & disease details | Assessed | Removed |
| Epigenetics & microbiome | Not included | Introduced as examples |
| Statistics in Paper 3 | Rarely assessed | Regularly assessed |
| Ethical discussions | Minimal | Explicitly rewarded |
This table highlights the shift from knowledge-heavy assessment to a skills-oriented framework. Students who rely solely on memorising facts will find the 2026 papers significantly more demanding than those of 2024.
上表着重展示了从知识密集型评估向技能导向框架的转变。仅仅依赖记忆事实的学生会发现 2026 年的试卷比 2024 年的要求高出不少。
9. Trends in Mark Schemes and Examiner Expectations | 评分方案与考官期望的趋势
Mark schemes for long-answer questions now reward process-based thinking. For example, when explaining enzyme activity, a candidate must link changes in tertiary structure to active site shape and substrate binding, rather than just stating 'the enzyme denatures'. Similarly, answers that use biological terminology precisely and build logical chains of reasoning will earn the highest marks. Vague statements are penalised more strictly.
长答案问题的评分方案现在奖励过程性思维。例如，在解释酶活性时，考生必须将三级结构的变化与活性位点形状及底物结合联系起来，而不仅仅是表述“酶变性了”。同样，那些精确使用生物学术语并建立起逻辑推理链条的答案将获得最高分。含糊不清的表述会受到更严格的扣分。
10. Recommended Preparation Strategy for 2026 Candidates | 2026 年考生的推荐备考策略
To meet the new demands, students should integrate the following habits into their revision: (1) Practise past papers from 2025 onwards as soon as they become available, noting the change in question style. (2) Engage with specimen papers and mark schemes provided by Cambridge. (3) Develop data‑handling fluency through dedicated graph work and statistics exercises. (4) Write structured answers that explicitly use 'because', 'therefore', and 'this leads to'. (5) Build a glossary of command word responses. (6) Carry out at least one full practical investigation independently, covering hypothesis formation, variable control and evaluation.
为了满足新要求，学生应在复习中融入以下习惯：（1）尽早练习 2025 年及之后的真题，注意题型风格的变化。（2）仔细研读剑桥提供的样卷和评分方案。（3）通过专门的图表处理和统计练习培养数据处理流畅度。（4）书写结构化答案时明确使用“因为”“因此”“这导致”等逻辑词。（5）建立指令词响应词汇表。（6）至少独立完成一项完整的实验探究，涵盖假设形成、变量控制和评价。
11. Implications for Teachers and Classrooms | 对教师和课堂的影响
Teachers are encouraged to move away from dictation-style delivery and adopt active learning strategies. Lessons should include regular opportunities for students to critique experimental designs, analyse authentic data sets, and present ethical arguments. Formative assessment tasks should mirror the new AO2 and AO3 weightings, giving learners early exposure to the style of thinking rewarded in 2026. Collaborative planning within science departments will be essential to align practical work with the new Paper 3 expectations.
鼓励教师摆脱灌输式授课，采用主动学习策略。课堂应定期提供机会让学生批判实验设计、分析真实数据集并陈述伦理观点。形成性评估任务应模仿新的 AO2 和 AO3 权重，让学习者尽早接触 2026 年考试所奖励的思维风格。科学部门内部的协作规划对于使实验操作符合新试卷三的要求至关重要。
12. Looking Ahead: A Trend Towards Holistic Biology | 展望未来：走向整体生物学
The 2026 changes are not an isolated overhaul; they represent a steady trend within Cambridge Assessment to produce scientifically literate citizens. The syllabus increasingly values the ability to connect molecular events with organism-level outcomes, to reason quantitatively, and to appreciate the tentative nature of scientific knowledge. Students who embrace this philosophy will not only excel in AS Biology but will also build a solid foundation for A2 and beyond.
2026 年的变化并非一次孤立的改革，它们代表了剑桥评估部培养具备科学素养公民的稳步趋势。该大纲日益重视将分子事件与个体层面的结果联系起来、进行定量推理以及理解科学知识的暂定性本质。拥抱这一理念的学生不仅会在 AS 生物学中脱颖而出，还将为 A2 及更高阶段的学习打下坚实基础。
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