📚 Year 7 CAIE Biology: Winter Intensive Revision Plan | Year 7 CAIE 生物：寒假强化复习计划
The winter break is a golden opportunity to consolidate your Year 7 CAIE Biology knowledge. Rather than cramming, a structured daily plan helps you revisit key topics, strengthen your understanding, and build confidence for the coming term. This guide provides a 10-day intensive revision programme covering all core areas: from cells and classification to ecosystems and photosynthesis, with practical tips and self-test questions.
寒假是巩固 Year 7 CAIE 生物学知识的黄金时期。与其临时抱佛脚，不如制定一个有序的每日计划，帮助你重温核心主题、加深理解，并为下学期树立信心。本指南提供了一个为期十天的强化复习计划，涵盖了从细胞、分类到生态系统和光合作用的所有核心领域，并附有实用技巧和自测题。
1. Why a Revision Plan Matters | 为何复习计划如此重要
A clear plan prevents procrastination and ensures you touch upon every topic covered in your CAIE syllabus. Start by listing all the topics you studied this term, then allocate each day to one or two topics, with time for review and practice.
一份清晰的计划能防止拖延并确保覆盖 CAIE 大纲中的所有主题。首先列出本学期学过的所有主题，然后每天分配一至两个主题，并留出复习和练习的时间。
Make your goals S.M.A.R.T. – Specific, Measurable, Achievable, Relevant, and Time-bound. For instance, 'I will draw and label 5 specialised cells by Tuesday' is much better than a vague 'I will study cells'. This focus turns revision into a series of achievable wins.
使你的目标符合 S.M.A.R.T. 原则——具体、可衡量、可实现、相关、有时限。例如，“我将在周二前绘制并标注 5 种特化细胞”比模糊的“我要学习细胞”要好得多。这种专注将复习转变为一系列可实现的小胜利。
2. Cells – The Building Blocks of Life | 细胞——生命的基本单位
All living organisms are made of cells. Animal cells contain a nucleus, cytoplasm and a cell membrane. Plant cells have the same three components plus a rigid cell wall, a large permanent vacuole and chloroplasts. Chloroplasts are the site of photosynthesis and contain the green pigment chlorophyll.
所有生物都由细胞构成。动物细胞包含细胞核、细胞质和细胞膜。植物细胞除了这三者外，还有坚硬的细胞壁、一个大液泡和叶绿体。叶绿体是光合作用的场所，含有绿色色素——叶绿素。
The table below summarises the key organelles and their functions. Refer to it while drawing and labelling your own diagrams – active recall from memory is a powerful revision technique.
下表总结了关键细胞器及其功能。在你自己绘制并标注图示时请参照该表——凭记忆主动回忆是一种高效的复习技巧。
| Organelle | Function | 细胞器 | 功能 |
|---|---|---|---|
| Nucleus | Controls cell activities, contains genetic material | 细胞核 | 控制细胞活动，含有遗传物质 |
| Cytoplasm | Jelly-like substance where chemical reactions occur | 细胞质 | 胶状物质，化学反应发生的场所 |
| Cell membrane | Controls what enters and leaves the cell | 细胞膜 | 控制物质进出细胞 |
| Cell wall (plant) | Made of cellulose, provides support and shape | 细胞壁（植物） | 由纤维素构成，提供支撑和形状 |
| Chloroplasts (plant) | Contain chlorophyll, absorb light for photosynthesis | 叶绿体（植物） | 含有叶绿素，吸收光能进行光合作用 |
| Vacuole (plant) | Stores cell sap, helps keep the cell rigid | 液泡（植物） | 储存细胞液，帮助维持细胞硬挺 |
When revising, draw each cell type from memory, label the organelles, then check your textbook. Pay special attention to the unique features of plant cells – they are often examined in Year 7 CAIE papers.
复习时，凭记忆画出每种细胞类型，标注细胞器，然后对照课本检查。特别注意植物细胞的独特特征——它们经常在 Year 7 CAIE 试卷中出现。
3. Cell Specialisation and Organisation | 细胞特化与组织
Specialised cells have shapes and structures adapted to their specific roles. For example, red blood cells are biconcave and lack a nucleus to carry more haemoglobin; nerve cells are long to transmit electrical impulses; root hair cells have a long, thin projection to absorb water and minerals; and palisade cells are packed with chloroplasts for photosynthesis. Published by TutorHao | Year 7 Biology Revision Series | aleveler.com
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