A comprehensive study and exam-tips package for Cambridge International AS & A Level Biology (9700), featuring a detailed assessment profile, actionable HTML strategy guide, common examiner-reported pitfalls, and mathematical calculation methods.
閱讀時間 3 分鐘更新於: 2026年6月21日
試卷概覽
卷數
5
總分
270
考試時間
7小時 45分鐘
題型
3
試卷
時間
分數
題數
比重
題型
Paper 1: Multiple Choice
1小時 15分鐘
40
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Paper 2: AS Level Structured Questions
1小時 15分鐘
60
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Paper 3: Advanced Practical Skills
2小時
40
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Paper 4: A Level Structured Questions
2小時
100
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Paper 5: Planning, Analysis and Evaluation
1小時 15分鐘
30
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評級
A*ABCDEU
計算機規定
A silent scientific calculator is required where the syllabus permits one. It must NOT be graphical, programmable, or capable of symbolic algebra (CAS), and it must contain no stored programs or notes.
AO1: AO1 Knowledge with understanding
AO2: AO2 Handling information and solving problems
AO3: AO3 Experimental skills and investigations
根據歷屆試題與評分準則整理（2023–2025）。
計算機程式
Table mode for roots & turning points
Scientific calculator (e.g. Casio fx-991 series)
用途: Tabulate \(y\) across a range of \(x\) to locate sign changes (roots) and approximate maxima/minima.
使用時機: Solving or sketching a function when you want to find where its graph crosses or turns.
步驟
Enter the function in TABLE mode, set the start, end and step, then read where the sign of \(y\) changes or where it peaks.
考試提示: Allowed, but the calculator must be silent, non-graphical, non-programmable and free of stored content; always show the working the mark scheme requires.
Statistics mode (mean, SD & regression)
Scientific calculator (e.g. Casio fx-991 series)
用途: Read the mean \(\bar{x}\) and standard deviation directly, and the gradient/intercept (and \(r\)) of a linear regression for bivariate data.
使用時機: Any data-handling, statistics, or required-practical analysis question.
步驟
Enter the data in STAT mode (1-VAR or A+BX), then recall \(\bar{x}\), \(\sigma\) or the regression coefficients.
考試提示: Allowed, but the calculator must be silent, non-graphical, non-programmable and free of stored content; always show the working the mark scheme requires.
Carry exact values with Ans & memory
Scientific calculator (e.g. Casio fx-991 series)
用途: Keep full-precision intermediate values to avoid rounding errors.
使用時機: Multi-step calculations where premature rounding loses the final accuracy mark.
步驟
Use Ans, STO/RCL or the M+ memory to reuse the unrounded result of each step; round only the final answer.
考試提示: Allowed, but the calculator must be silent, non-graphical, non-programmable and free of stored content; always show the working the mark scheme requires.
Equation solver — to CHECK your working
Scientific calculator (e.g. Casio fx-991 series)
用途: Use the built-in EQN/SOLVE mode to verify roots of quadratics or simultaneous equations you have already solved by algebra.
使用時機: As a check only, after solving by hand.
步驟
Enter the coefficients in EQN mode (or use SOLVE) and confirm they match your worked solution.
考試提示: Allowed, but the calculator must be silent, non-graphical, non-programmable and free of stored content; always show the working the mark scheme requires.
常見錯誤
1high涉及分數: 2The microscope in cell studies (Cell structure)
Failing to convert units (such as millimeters to micrometers) before calculating magnification or actual size.
如何避免: Always measure your image in millimeters, multiply by 1000 to convert to micrometers, and then apply the magnification formula.
2high涉及分數: 1Transport in mammals
Stating that arteries 'contract and relax' to withstand blood pressure fluctuations.
如何避免: Clarify that elastic fibers in arteries stretch and recoil to maintain blood pressure, whereas smooth muscle contracts to cause vasoconstriction.
3medium涉及分數: 1Testing for biological molecules (Biological molecules)
Using imprecise, non-scientific terms like 'average' and 'amount' in practical and planning investigations.
如何避免: Use standard scientific terms: 'mean' instead of 'average', 'volume' or 'concentration' instead of 'amount', and 'mean' instead of 'general trend'.
4high涉及分數: 3Structure of transport tissues (Transport in plants)
Using shading, sketched lines, or drawing individual cells in low-power plan tissue diagrams during practical exams.
如何避免: Draw only the tissue boundaries using a sharp HB pencil with clean, continuous, single lines and absolutely no shading.
5medium涉及分數: 1Cell membranes and transport (Biology (AS Level))
Describing active transport or facilitated diffusion without stating the direction of solute movement.
如何避免: Always state from where to where the ions or molecules are moving (e.g., from the cytoplasm to the extracellular environment, or down a concentration gradient).
6high涉及分數: 3Selection and evolution (Biology (A Level))
Failing to explicitly compare the calculated statistical value to the critical value in t-test or correlation questions.
如何避免: State the critical value from the provided table at p = 0.05, specify the degrees of freedom, and explicitly state whether the calculated value is greater than or less than the critical value to accept or reject the null hypothesis.