📚 Year 7 WJEC Biology: Transition Guide | Year 7 WJEC 生物：升学衔接指南
Moving from primary school to Year 7 marks an exciting shift in your science education. Biology, as part of the WJEC curriculum, becomes a distinct subject with its own experiments, terminology, and deeper exploration of living things. This transition guide will help you understand what to expect, build a strong foundation, and develop the skills needed to succeed in biology during Key Stage 3.
从小学升入七年级，你的科学学习将迎来令人兴奋的转变。在 WJEC 课程体系中，生物成为一门独立科目，有了专门的实验、术语以及对生命更深入的探索。这份衔接指南将帮助你了解即将学习的内容，打好坚实基础，并培养在关键阶段三生物学中取得成功所需的技能。
1. Welcome to Secondary Biology | 欢迎来到中学生物
In primary school, you studied science as a broad subject covering bits of biology, chemistry, and physics. Now in Year 7, each science discipline is taught separately, often by specialist teachers. Biology lessons will involve more hands-on practical work, using microscopes, and learning to record observations systematically.
在小学，科学是一门涵盖生物、化学和物理知识的综合学科。现在进入七年级，各科学分支将由专业教师分开教授。生物课将包含更多动手实验，比如使用显微镜，并学习系统地记录观察结果。
You will be introduced to a structured curriculum that includes topics like cells, reproduction, and ecosystems. Expect to keep a lab book and to start using scientific vocabulary such as 'hypothesis', 'variable', and 'organism'. Being curious and asking questions is highly encouraged.
你将接触到结构化的课程，包括细胞、生殖和生态系统等主题。你将需要准备实验记录本，并开始使用“假设”、“变量”、“生物体”等科学词汇。保持好奇心、主动提问是老师们非常鼓励的。
2. Lab Safety and Equipment | 实验室安全与设备
Safety is the number one priority in any biology laboratory. Before your first experiment, you will learn the safety rules: always wear safety goggles when handling chemicals or heating, tie back long hair, and never eat or drink in the lab. You must know the location of the fire extinguisher, eye wash station, and first aid kit.
在任何生物实验室，安全都是第一要务。在进行首次实验前，你将学习安全规则：处理化学品或加热时始终佩戴护目镜，束好长发，绝不在实验室吃喝。你必须知道灭火器、洗眼器和急救箱的位置。
Common equipment you will use includes the light microscope, test tubes, beakers, Bunsen burner (used with a safety flame), petri dishes, and slides. Learning to handle glassware carefully and to use the microscope correctly will build your confidence and precision.
你将使用的常见设备包括光学显微镜、试管、烧杯、本生灯（使用安全火焰）、培养皿和载玻片。学会小心处理玻璃器皿并正确使用显微镜，将培养你的信心和精确度。
3. The Scientific Method | 科学方法
Biology is not just about memorising facts; it is about discovering how living things work through investigation. The scientific method involves making observations, asking a question, forming a hypothesis, designing a fair test, collecting data, and drawing conclusions. You will learn to identify independent, dependent, and control variables.
生物学不仅仅是记忆事实，更是通过探究来发现生命体如何运作。科学方法包括观察、提问、提出假设、设计公平实验、收集数据以及得出结论。你要学会识别自变量、因变量和控制变量。
For example, if investigating how light affects seed germination, the amount of light is the independent variable, the number of seeds germinated is the dependent variable, and factors like temperature and water must be kept constant (controlled). You will then present results in tables and graphs.
比如，研究光照如何影响种子发芽时，光照量是自变量，发芽种子数量是因变量，而温度和水等因素必须保持不变（控制变量）。最后你将以表格和图表展示结果。
4. Characteristics of Living Things (MRS GREN) | 生物的特征（MRS GREN）
To decide whether something is alive, biologists use a list of life processes often remembered by the acronym MRS GREN: Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion, and Nutrition. All living organisms, from bacteria to blue whales, carry out these processes.
为了判断某物是否有生命，生物学家使用一组生命活动，常用缩写 MRS GREN 来记忆：运动、呼吸、感应、生长、生殖、排泄与营养。从细菌到蓝鲸，所有生物都进行这些活动。
Movement can be obvious in animals, but plants also move slowly towards light. Respiration is the release of energy from food, not to be confused with breathing. Excretion is the removal of waste products produced by the body's metabolism. These concepts will form the basis for classifying and comparing organisms.
运动在动物中很明显，但植物也会缓慢地朝向光线移动。呼吸是指从食物中释放能量，不要与“呼吸（breathing）”混淆。排泄是清除体内代谢产生的废弃物。这些概念将成为分类和比较生物的基础。
5. Cells: The Building Blocks of Life | 细胞：生命的基本单位
All living things are made of cells. In Year 7, you will learn to distinguish between plant and animal cells. Both have a cell membrane, cytoplasm, and a nucleus, but plant cells also have a rigid cell wall, a large permanent vacuole, and often chloroplasts for photosynthesis.
所有生物都由细胞构成。在七年级，你将学习区分植物细胞和动物细胞。两者都有细胞膜、细胞质和细胞核，但植物细胞还有坚硬的细胞壁、一个大的中央液泡，并且通常含有进行光合作用的叶绿体。
You will use a light microscope to observe prepared slides of onion epidermis or cheek cells, and even prepare your own wet mounts. Staining with iodine or methylene blue helps make structures like the nucleus visible. Understanding cell structure is fundamental before moving on to tissues, organs, and systems.
你将使用光学显微镜观察洋葱表皮或口腔上皮细胞的现成玻片，甚至自己制作临时装片。用碘液或亚甲蓝染色有助于使细胞核等结构可见。在进一步学习组织、器官和系统之前，理解细胞结构是根本。
6. Classification and Biodiversity | 分类与生物多样性
Biologists group organisms to make sense of the diversity of life. The main kingdoms are animals, plants, fungi, prokaryotes (bacteria), and protoctists. Within the animal kingdom, vertebrates are divided into mammals, birds, reptiles, amphibians, and fish, based on features like body covering and reproduction.
生物学家对生物进行分组以理解生命的多样性。主要的界包括动物界、植物界、真菌界、原核生物界（细菌）和原生生物界。在动物界中，脊椎动物根据体表覆盖物和生殖方式等特征分为哺乳类、鸟类、爬行类、两栖类和鱼类。
You will learn to use dichotomous keys, which are tools that help identify unknown organisms by asking a series of yes/no questions. Biodiversity refers to the variety of species in an area and is crucial for healthy ecosystems. Fieldwork, such as a pond dipping or quadrat survey, may introduce you to sampling methods.
你将学会使用二歧分类检索表，这种工具通过一系列是/否问题来鉴定未知生物。生物多样性指的是一个地区物种的丰富程度，对健康的生态系统至关重要。像池塘采样或样方调查这样的野外工作，可能会向你介绍采样方法。
7. Food Chains and Energy Transfer | 食物链与能量传递
A food chain shows the feeding relationship between organisms. It always starts with a producer, usually a green plant that makes its own food via photosynthesis. Primary consumers (herbivores) eat producers, secondary consumers eat herbivores, and so on. Arrows represent the direction of energy flow.
食物链显示了生物之间的摄食关系。它总是以生产者开始，通常是绿色植物，通过光合作用制造食物。初级消费者（食草动物）吃生产者，次级消费者吃食草动物，以此类推。箭头表示能量流动的方向。
In reality, feeding relationships form complex food webs. You will learn that only a small fraction of energy (about 10%) is passed from one trophic level to the next; the rest is lost as heat or used for life processes. Decomposers, like bacteria and fungi, break down dead matter and recycle nutrients.
实际上，摄食关系构成复杂的食物网。你将了解到只有一小部分能量（约10%）从一个营养级传递到下一个营养级；其余能量以热的形式散失或用于生命活动。分解者，如细菌和真菌，分解死亡物质并循环利用养分。
8. Introduction to Photosynthesis | 光合作用入门
he word equation summarises it: carbon dioxide + water → glucose + oxygen, in the presence of light energy and chlorophyll.
光合作用是绿色植物及某些其他生物利用阳光将二氧化碳和水合成为营养物质的过程。其文字方程式可概括为：二氧化碳 + 水 → 葡萄糖 + 氧气，需要光能和叶绿素的存在。
You might test a leaf for starch to prove that photosynthesis has occurred, or investigate the effect of light intensity on the rate of photosynthesis using aquatic plants like Elodea. The glucose produced is used for respiration, converted into starch for storage, or used to build cellulose and other compounds.
你可以检测叶片中的淀粉以证明光合作用的发生，或用水生植物如伊乐藻来研究光照强度对光合作用速率的影响。产生的葡萄糖用于呼吸作用，转化为淀粉储存，或用于构建纤维素和其他化合物。
9. Human Body Systems Overview | 人体系统概述
As you progress through Year 7 and beyond, you will explore how the human body is organised into systems that work together. The main systems include the digestive system (breaking down food), respiratory system (gas exchange), circulatory system (transporting substances), and skeletal/muscular system (support and movement).
随着七年级学习的深入，你将探索人体如何由协同工作的系统组成。主要系统包括消化系统（分解食物）、呼吸系统（气体交换）、循环系统（运输物质）以及骨骼和肌肉系统（支撑与运动）。
You will investigate the role of enzymes in digestion, the structure of the lungs and how we breathe, and the components of blood: red cells, white cells, platelets, and plasma. Simple models, like bell jars for lungs, and dissection of a heart (sometimes demonstrated) help you visualise these systems.
你将探究酶在消化中的作用、肺的结构和呼吸方式，以及血液的组成：红细胞、白细胞、血小板和血浆。简单的模型，如模拟肺的钟罩模型，以及心脏解剖（有时会演示），有助于你直观理解这些系统。
10. Effective Study Skills and Assessment Tips | 高效学习技巧与评估建议
Success in WJEC biology requires more than just listening in class. Create a glossary of new terms and practise drawing and labelling diagrams clearly. Use flashcards for key facts like the parts of a cell or the MRS GREN processes. Regular short revision sessions are more effective than cramming before tests.
在 WJEC 生物中要想取得好成绩，仅靠听课是不够的。新建一个术语表，并练习清楚绘制和标注图表。使用抽认卡记忆关键知识点，如细胞各部分或 MRS GREN 过程。定期短时间复习比考前突击更有效。
Examinations will include multiple choice, short answer, and data interpretation questions. Always read the question carefully and note the marks available. In practical assessments, focus on safety, accurate measurements, and writing a clear evaluation. Your curiosity and willingness to experiment will drive your learning forward.
考试包括选择题、简答题和数据分析题。务必仔细读题并注意分值。在实践评估中，要关注安全、精确测量和撰写清晰的评价。你的好奇心和实验意愿将推动学习不断进步。
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