📚 Year 7 CCEA Biology: Transition Guide from Primary Science | Year 7 CCEA 生物：升学衔接指南
Starting Year 7 is an exciting step, especially when you move from primary science to more focused biology lessons. This guide will help you understand what to expect, how biology is different from what you learned before, and how to build strong foundations for success in CCEA Key Stage 3 Science.
进入七年级是令人激动的一步，特别是当你从小学科学过渡到更专注的生物课时。本指南将帮助你了解预期内容、生物学与你之前所学有何不同，以及如何为 CCEA 关键阶段三科学打下扎实基础，取得成功。
1. Welcome to Secondary Biology | 欢迎进入中学生物课堂
In primary school, you explored nature, habitats and basic life cycles. Now biology becomes a formal subject where you will use scientific methods, record observations and explain living processes in much more detail.
在小学，你探索了自然、栖息地和基本的生命周期。现在生物成为一门正式的学科，你将使用科学方法，记录观察结果，并更详细地解释生命过程。
Your teacher will encourage you to ask questions like ‘Why do leaves change colour?’ or ‘How does my heart pump blood?’. The aim is not just to remember facts but to understand the ‘how’ and ‘why’ behind living things.
你的老师会鼓励你问出诸如 “为什么树叶会变色？” 或 “心脏如何泵血？” 之类的问题。目标不仅仅是记住事实，而是理解生物背后的 “如何” 和 “为什么”。
You will also start using lab equipment, drawing labelled diagrams and writing simple conclusions. This is a big step up from primary work and very rewarding.
你还将开始使用实验室设备，绘制标注清晰的简图并撰写简单的结论。这是比小学阶段更进一大步的工作，会让你收获满满。
2. What Is Biology? | 什么是生物学？
Biology is the study of living organisms and life processes. The word comes from Greek: ‘bios’ meaning life and ‘logos’ meaning study. It covers everything from tiny bacteria to giant blue whales.
生物学是研究生物体和生命过程的学科。这个词来自希腊语：”bios” 意为生命，”logos” 意为学问。它涵盖从微小的细菌到巨大的蓝鲸的一切。
In Year 7, you will learn about cells, how organisms reproduce, how they get energy, and how they interact with each other and their environment. You will also start to understand why classification and adaptation are important ideas in biology.
在七年级，你将学习细胞、生物如何繁殖、如何获取能量，以及它们如何与彼此和环境相互作用。你还将开始理解为什么分类和适应是生物学中的重要概念。
3. Key Differences from Primary Science | 与小学科学的主要区别
One big change is the depth of explanation. In primary school you might have planted a seed and watched it grow. Now you will learn about photosynthesis, the role of chlorophyll and the chemical equation behind it.
一个大的变化是解释的深度。在小学，你可能种下一粒种子并观察它生长。现在你将学习光合作用、叶绿素的作用以及背后的化学方程式。
You will also keep a lab book, record numerical data, construct graphs and evaluate experiments. The vocabulary becomes more precise: you say ‘pulmonary system’ rather than just ‘breathing’, and ‘skeletal muscle’ rather than ‘arm muscle’.
你还会拥有实验记录本，记录数字数据，绘制图表并评估实验。词汇变得更加精确：你会说 “肺循环系统” 而不仅仅是 “呼吸”，会说 “骨骼肌” 而不仅仅是 “手臂肌肉”。
Finally, you will be assessed through written tests, practical investigations and sometimes presentations. Expectations are higher, but so is the support you will receive.
最后，你将通过书面测试、实践调查以及有时的小组展示进行评估。对你的期望更高了，但你得到的支持也会更多。
4. The 7 Life Processes (MRS GREN) | 七大生命过程 (MRS GREN)
All living things carry out seven life processes. In CCEA science, you will learn the acronym MRS GREN to remember them. Each letter stands for a key characteristic of life.
所有生物都进行七大生命过程。在 CCEA 科学课程中，你将学习用缩写词 MRS GREN 来记忆它们。每个字母代表生命的一个关键特征。
| Letter | Life Process | 中文 | Meaning (English) | 含义 (中文) |
|---|---|---|---|---|
| M | Movement | 运动 | Changing position or moving internal parts | 改变位置或移动内部器官 |
| R | Respiration | 呼吸作用 | Releasing energy from food | 从食物中释放能量 |
| S | Sensitivity | 感应 | Detecting and responding to changes | 察觉并回应环境变化 |
| G | Growth | 生长 | Increasing in size and complexity | 体积和复杂性的增加 |
| R | Reproduction | 繁殖 | Producing offspring | 产生后代 |
| E | Excretion | 排泄 | Removing waste products | 清除代谢废物 |
| N | Nutrition | 营养 | Taking in and using food | 摄入并利用食物 |
If something does not carry out all seven processes, it is not considered a living organism. For example, a virus cannot respire or grow on its own, so it is not classified as living.
如果某物不能进行全部七个过程，它就不被认为是生物体。例如，病毒不能自己呼吸或生长，因此不被归类为生物。
5. Cells: The Building Blocks of Life | 细胞：生命的基石
All living organisms are made of cells. A cell is the smallest unit that can carry out life processes. In Year 7 you will learn to use a light microscope to observe plant and animal cells.
所有生物都由细胞组成。细胞是能够执行生命过程的最小单位。在七年级，你将学习使用光学显微镜观察植物和动物细胞。
Typical animal cells contain a nucleus, cytoplasm, cell membrane and mitochondria. Plant cells have these plus a cell wall, a large permanent vacuole and chloroplasts for photosynthesis.
典型的动物细胞含有细胞核、细胞质、细胞膜和线粒体。植物细胞除了这些之外，还有细胞壁、一个大的中央液泡和进行光合作用的叶绿体。
You will draw and label these parts, and you must learn the function of each. For instance, the nucleus controls the cell’s activities, and mitochondria release energy through respiration.
你将绘制这些部分并标注，而且必须学习每个部分的功能。例如，细胞核控制细胞的活动，线粒体通过呼吸作用释放能量。
Word equation for respiration: glucose + oxygen → carbon dioxide + water (+ energy)
呼吸作用文字方程式：葡萄糖 + 氧气 → 二氧化碳 + 水 (+ 能量)
6. Classification of Living Things | 生物的分类
Scientists group organisms to make them easier to study. The main groups, or kingdoms, you will meet are animals, plants, fungi, bacteria and protists. Each kingdom is then divided into smaller subgroups.
科学家将生物分门别类以便研究。你将接触到的主要类群或界有动物界、植物界、真菌界、细菌界和原生生物界。每个界再细分为更小的类群。
In CCEA Year 7, you will learn to use simple keys to identify organisms. A dichotomous key asks a series of yes/no questions to narrow down the identification. You will also explore how vertebrates are divided into fish, amphibians, reptiles, birds and mammals.
在 CCEA 七年级课程中，你将学习使用简单的检索表来鉴别生物。二叉式检索表通过一系列是/否问题来逐步缩小范围。你还会探索脊椎动物如何分为鱼类、两栖类、爬行类、鸟类和哺乳类。
Invertebrates like insects, spiders and worms are also studied, often by looking at features such as number of legs or body segments.
无脊椎动物，如昆虫、蜘蛛和蠕虫，也通过观察腿的数量或体节等特征来学习。
7. Habitats and Adaptations | 栖息地与适应
A habitat is the natural home of an organism. It provides food, shelter and a place to reproduce. Organisms have special features, called adaptations, that help them survive in their specific habitat.
栖息地是生物的自然家园，它提供食物、庇护所和繁殖场所。生物具有特殊的特征，称为适应，这些特征帮助它们在特定栖息地生存。
For example, a camel has long eyelashes to keep out sand, and a polar bear has thick fur and a layer of blubber for insulation in the Arctic. A cactus has a thick, waxy stem to store water and spines to reduce water loss.
例如，骆驼有长睫毛来阻挡风沙；北极熊有厚厚的毛皮和一层脂肪，能在极地御寒。仙人掌有粗厚的蜡质茎来储存水分，刺则减少水分散失。
You will investigate how plants in a woodland compete for light, and how animals are adapted to day or night activity. This links closely with fieldwork opportunities in your local environment.
你将研究林地中的植物如何竞争光照，以及动物如何适应昼夜活动。这与你当地环境中实地考察的机会紧密相连。
8. Food Chains and Webs | 食物链和食物网
All energy in a food chain comes from the Sun. Green plants, called producers, convert this light energy into chemical energy by photosynthesis. Animals then eat plants or other animals to get energy.
食物链中的所有能量都来自太阳。被称为生产者的绿色植物通过光合作用将光能转化为化学能。然后动物通过吃植物或其他动物来获取能量。
A simple food chain looks like this: grass → rabbit → fox. The arrows show the direction of energy flow. You need to learn terms like producer, primary consumer, secondary consumer and top predator.
一条简单的食物链是这样的：草 → 兔子 → 狐狸。箭头表示能量流动的方向。你需要学习生产者、初级消费者、次级消费者和顶级捕食者等术语。
In real habitats, organisms eat more than one type of food, so many food chains link together to form a food web. You will draw and interpret food webs, and predict what might happen if one organism is removed.
在真实的栖息地中，生物不止吃一种食物，因此多条食物链交织在一起形成食物网。你将绘制并解读食物网，并预测如果移除了某种生物会发生什么情况。
9. Human Body Systems Overview | 人体系统概述
Your body is organised into systems, each made of organs working together. In Year 7 you will meet the skeletal, muscular, digestive, circulatory and respiratory systems.
你的身体由多个系统组成，每个系统由多个器官协同工作。在七年级，你将学习骨骼系统、肌肉系统、消化系统、循环系统和呼吸系统。
The skeletal system supports the body and protects organs such as the brain and heart. Muscles work in pairs to move bones at joints. The digestive system breaks down large food molecules into small soluble ones that can be absorbed into the blood.
骨骼系统支撑身体并保护大脑和心脏等器官。肌肉成对工作，在关节处牵引骨骼。消化系统将大分子食物分解为可溶于水的小分子，以便吸收进入血液。
The heart pumps blood through arteries and veins, carrying oxygen and nutrients to cells and removing waste. The lungs take in oxygen and release carbon dioxide. You will link these systems to the life processes of respiration and nutrition.
心脏将血液泵入动脉和静脉，为细胞输送氧气和养分并带走废物。肺吸入氧气并呼出二氧化碳。你将把这些系统与呼吸作用和营养等生命过程联系起来。
10. Scientific Enquiry Skills | 科学探究技能
Practical work is at the heart of CCEA science. You will learn to plan a fair test, where you change one variable (independent variable), measure another (dependent variable) and keep everything else the same (control variables).
实践工作是 CCEA 科学的核心。你将学习如何设计公平测试：改变一个变量（自变量），测量另一个变量（因变量），并保持其他所有条件不变（控制变量）。
You will collect data in tables, calculate averages, and draw bar charts or line graphs. After an investigation, you must write a conclusion that states what you found out and relates it to your prediction. You will also evaluate the method, suggesting improvements.
你将用表格收集数据，计算平均值，并绘制条形图或折线图。调查结束后，你必须写出结论，阐明你的发现并将其与预测联系起来。你还要评估实验方法，提出改进建议。
Terms like ‘repeatable’, ‘reproducible’ and ‘anomalous result’ will become familiar. These skills are not only for exams; they prepare you to think like a real scientist.
像 “可重复的”、”可复现的” 和 “异常结果” 等术语你会逐渐熟悉。这些技能不仅仅为了考试；它们让你像真正的科学家一样思考。
11. Lab Safety Rules | 实验室安全守则
Working safely in the laboratory is essential. Always follow your teacher’s instructions and never enter the lab without permission. Tie back long hair, tuck in loose clothing and wear safety goggles when required.
在实验室安全操作至关重要。始终遵循老师的指导，未经允许不得进入实验室。长发要扎起，宽松衣物要收好，需要时戴上护目镜。
Never eat or drink in the lab, and always wash your hands after handling materials or living organisms. If you are using a microscope or glassware, carry it with both hands. Report any breakage or spill immediately.
绝不在实验室饮食，接触材料或活体生物后务必洗手。如果使用显微镜或玻璃器皿，要用双手搬拿。任何破损或溢出应立即报告。
You will learn to recognise hazard symbols such as ‘flammable’, ‘corrosive’ and ‘toxic’. A risk assessment helps you identify potential dangers and decide how to reduce them before an experiment begins.
你将学会识别诸如 “易燃”、”腐蚀性” 和 “有毒” 等危险标志。风险评估有助于你在实验开始前识别潜在危险并决定如何降低风险。
12. How to Succeed in Year 7 Biology | 如何在七年级生物学习中取得成功
Stay curious and ask questions. Biology is all around you, from the plants in your garden to the food you digest. Try to link what you learn in class to real-world examples.
保持好奇心，多提问题。生物学无处不在，从你花园里的植物到你消化的食物。尽量将课堂所学与实际例子联系起来。
Keep your notes organised with clear headings and labelled diagrams. Use flashcards for key vocabulary like ‘cell membrane’, ‘mitochondria’ or ‘adaptation’. Review your work regularly, not just before a test.
让你的笔记井井有条，标题清晰、简图标注明确。使用闪卡记忆 “细胞膜”、”线粒体” 或 “适应” 等关键词汇。定期复习，而不仅仅是考试前。
Practise past questions and always read the command word carefully: ‘describe’ means say what you see, while ‘explain’ means give reasons. Finally, enjoy the practicals; they are the best way to understand how living things work.
练习历年真题，并仔细阅读指令词：”描述” 意味着说出你所见的，”解释” 则意味着给出原因。最后，享受动手实验；那是理解生命如何运作的最佳途径。
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