📚 Year 8 AQA Physical Education: Key Knowledge Review | 八年级 AQA 体育：核心知识点梳理
In Year 8 Physical Education, students build a solid foundation in the science of human movement and health. This article brings together the key knowledge areas covered in the AQA syllabus, from how our muscles and bones work to how we train effectively and stay safe. Use this guide to review the core concepts and strengthen your understanding for both practical lessons and written tests.
在八年级体育课程中，学生将打下人体运动与健康科学的坚实基础。本文汇总了 AQA 大纲所涵盖的核心知识领域，从肌肉与骨骼的运作方式到有效训练与安全保护。用这份指南梳理核心概念，巩固实践课和书面测试所需的理解。
1. Health and Fitness | 健康与体能
Health is a state of complete physical, mental and social well-being. It is not simply the absence of illness. Fitness, on the other hand, is the ability to meet the demands of the environment. A person can be fit for one sport but not healthy overall, and vice versa.
健康是一种身体、心理和社会完全安好的状态，而不仅仅是没有疾病。体能则是指满足环境需求的能力。一个人可能在某些运动上体能良好，但整体并不健康，反之亦然。
The components of health-related fitness include cardiovascular endurance, muscular strength, muscular endurance, flexibility and body composition. Skill-related fitness includes agility, balance, coordination, power, reaction time and speed.
健康相关体能要素包括心血管耐力、肌肉力量、肌肉耐力、柔韧性和身体成分。技能相关体能包括灵敏、平衡、协调、爆发力、反应时间和速度。
Regular physical activity improves both health and fitness. It reduces the risk of conditions such as obesity, type 2 diabetes and heart disease, while also boosting mood and sleep quality.
规律的体育活动能同时改善健康与体能。它降低肥胖、2 型糖尿病和心脏病等风险，同时提升情绪与睡眠质量。
2. The Skeletal System | 骨骼系统
The skeleton provides five main functions: support for the body, protection of vital organs, movement through joints and attachments, production of blood cells in bone marrow, and storage of minerals such as calcium.
骨骼有五大功能：支撑身体、保护重要器官、通过关节和附着点实现运动、在骨髓中生成血细胞，以及储存钙等矿物质。
Key bones you must know include the cranium, clavicle, scapula, humerus, ribs, sternum, vertebrae, pelvis, femur, patella, tibia, fibula, radius, ulna, carpals, metacarpals and phalanges. In Year 8, you should be able to locate these on a diagram and link them to their functions.
必须掌握的关键骨骼包括：颅骨、锁骨、肩胛骨、肱骨、肋骨、胸骨、椎骨、骨盆、股骨、髌骨、胫骨、腓骨、桡骨、尺骨、腕骨、掌骨和指骨。在八年级，你需要能够在图上标出这些骨头并说明其作用。
Joints are where two or more bones meet. Synovial joints such as the ball-and-socket (shoulder, hip) and hinge joints (elbow, knee) allow a wide range of movement. Ligaments connect bone to bone, while tendons connect muscle to bone.
关节是两块或多块骨骼的接合处。滑液关节，如球窝关节（肩、髋）和铰链关节（肘、膝），能提供大幅度运动。韧带将骨与骨连接，肌腱则连接肌肉与骨骼。
3. The Muscular System | 肌肉系统
Muscles work as antagonistic pairs – when one contracts (the agonist), the other relaxes (the antagonist). For example, during a bicep curl, the biceps brachii is the agonist and the triceps brachii is the antagonist.
肌肉以拮抗对的形式工作——当一块收缩（主动肌）时，另一块放松（拮抗肌）。例如，做二头弯举时，肱二头肌为主动肌，肱三头肌为拮抗肌。
Other important muscles include the deltoids, pectorals, latissimus dorsi, abdominals, quadriceps, hamstrings, gastrocnemius, gluteals, hip flexors and tibialis anterior. Knowing their locations and movements helps you analyse sporting actions.
其他重要肌肉包括三角肌、胸大肌、背阔肌、腹肌、股四头肌、腘绳肌、腓肠肌、臀肌、髋屈肌和胫骨前肌。了解它们的位置和运动有助于分析体育动作。
There are three types of muscle: cardiac (heart), smooth (in organs) and skeletal (voluntary). We focus on skeletal muscle in PE because it is under conscious control and enables movement.
肌肉分为三种类型：心肌（心脏）、平滑肌（内脏）和骨骼肌（随意肌）。体育课重点关注骨骼肌，因为它受意识支配，是运动的基础。
4. The Cardiovascular System | 心血管系统
The cardiovascular system consists of the heart, blood and blood vessels. Its main roles are to transport oxygen, nutrients and hormones around the body and to remove waste products like carbon dioxide.
心血管系统由心脏、血液和血管组成。其主要功能是将氧气、营养物质和激素输送到全身，并带走二氧化碳等废物。
Blood flows through a double circulatory system. The right side of the heart pumps deoxygenated blood to the lungs (pulmonary circulation), while the left side pumps oxygenated blood to the rest of the body (systemic circulation).
血液流经双循环系统。右心房将缺氧血泵至肺部（肺循环），左心房则将富氧血泵至全身（体循环）。
Important terms include heart rate (the number of beats per minute), stroke volume (amount of blood pumped per beat) and cardiac output, which can be calculated using the equation:
重要术语包括心率（每分钟心跳次数）、每搏输出量（每次心跳泵出的血量）和心输出量，可用以下公式计算：
Cardiac output = Stroke volume × Heart rate
During exercise, both heart rate and stroke volume increase, leading to a higher cardiac output to deliver more oxygen to working muscles.
运动中，心率和每搏输出量都会增加，使心输出量升高，为工作肌肉输送更多氧气。
5. The Respiratory System | 呼吸系统
Respiration is the process of taking in oxygen and removing carbon dioxide. The respiratory system includes the nose, trachea, bronchi, bronchioles and alveoli. Gas exchange occurs at the alveoli, where oxygen diffuses into the blood and carbon dioxide diffuses out.
呼吸是吸入氧气、排出二氧化碳的过程。呼吸系统包括鼻腔、气管、支气管、细支气管和肺泡。气体交换发生在肺泡处，氧气扩散进入血液，二氧化碳扩散排出。
Key lung volumes include tidal volume (air inhaled and exhaled per breath at rest) and vital capacity (the maximum amount of air you can exhale after a maximum inhalation). During exercise, tidal volume increases to meet oxygen demand.
重要肺容量包括潮气量（安静状态下每次吸入或呼出的气体量）和肺活量（尽力吸气后所能呼出的最大气体量）。运动时潮气量增大以满足氧气需求。
The intercostal muscles and diaphragm work together to change the volume of the chest cavity. When they contract, air is drawn in (inhalation); when they relax, air is pushed out (exhalation).
肋间肌与膈肌协同改变胸腔容积。它们收缩时，空气被吸入（吸气）；放松时，空气被呼出（呼气）。
6. Components of Fitness | 体能组成要素
Fitness is broken down into health-related and skill-related components. For Year 8, you need to understand each component and give sporting examples.
体能为健康相关和技能相关两大类。在八年级，你需要理解每一种要素并能给出运动实例。
| Health-related | Skill-related |
|---|---|
| Cardiovascular endurance | Agility |
| Muscular strength | Balance |
| Muscular endurance | Coordination |
| Flexibility | Power |
| Body composition | Reaction time |
| Speed |
For example, a marathon runner needs high cardiovascular endurance and muscular endurance, while a gymnast relies on flexibility, balance and coordination. Understanding which components matter most for a sport helps you design effective training.
例如，马拉松运动员需要高心血管耐力和肌肉耐力，而体操运动员依赖柔韧性、平衡与协调。了解哪些要素对某运动最重要有助于设计有效训练。
7. Principles of Training | 训练原则
To improve fitness safely and effectively, you must apply the principles of training. The main principle is SPORT: Specificity, Progression, Overload, Reversibility and Tedium.
为了安全有效地提升体能，必须遵循训练原则。主要原则可记为 SPORT：针对性、渐进性、超负荷、可逆性和多样性（避免单调）。
Specificity means training should be relevant to your sport or goal. Progression is about gradually increasing the difficulty. Overload involves pushing the body beyond its normal limits, often using the FITT variables (Frequency, Intensity, Time, Type). Reversibility warns that fitness is lost when you stop training, and Tedium reminds us to vary workouts to stay motivated.
针对性指训练应与你从事的运动或目标相关。渐进性要求逐步增加难度。超负荷是让身体承受超过平常的负荷，常通过 FITT 变量（频率、强度、时间、类型）实现。可逆性提醒我们一旦停止训练体能会下降，多样性原则则要求变换训练内容以保持动力。
The FITT formula gives practical guidelines: Frequency (how often), Intensity (how hard), Time (how long), Type (what kind of exercise). For example, to improve cardiovascular fitness, you might train 4 times a week at 60-80% of maximum heart rate for 30 minutes, using continuous running.
FITT 公式提供了实操指南：频率（多常练）、强度（多费力）、时间（练多久）、类型（哪种运动）。例如要提高心血管适能，可以每周训练 4 次，以 60-80% 最大心率跑 30 分钟，采取持续跑步。
8. Methods of Training | 训练方法
Different training methods develop different components of fitness. Common methods for Year 8 include continuous training, interval training, circuit training, fartlek training and plyometric training.
不同训练方法发展不同的体能要素。八年级常见方法包括持续训练、间歇训练、循环训练、法特莱克训练和增强式训练。
Continuous training involves exercising at a steady pace for a long period, improving cardiovascular endurance. Interval training alternates between high-intensity work and recovery periods, boosting speed and anaerobic fitness. Circuit training consists of a series of exercises performed at stations, developing multiple fitness components at once. Fartlek training mixes fast and slow running over varied terrain. Plyometric training uses explosive movements like jumping to build power.
持续训练是以稳定配速长时间运动，提高心血管耐力。间歇训练在高强度练习与恢复间交替，提升速度和无氧能力。循环训练是在不同站点完成一系列练习，可同时发展多项体能。法特莱克训练在多变地形上混合快慢跑。增强式训练利用跳跃等爆发动作增强爆发力。
Warm-ups and cool-downs are essential parts of any training session. A warm-up gradually prepares the body, increasing heart rate and muscle temperature, while a cool-down helps remove waste products and prevents stiffness.
任何训练课程都离不开热身和放松。热身逐步调动身体，提高心率和肌肉温度；放松则帮助清除代谢废物并预防僵硬。
9. Nutrition and Hydration | 营养与补水
A balanced diet provides the energy and nutrients needed for growth, repair and performance. The main food groups are carbohydrates, proteins, fats, vitamins, minerals, fibre and water.
均衡膳食为生长、修复和运动表现提供能量与营养。主要食物类别包括碳水化合物、蛋白质、脂肪、维生素、矿物质、纤维素和水。
Carbohydrates are the body's main fuel source. Complex carbs like pasta and rice provide sustained energy, while simple carbs in fruit give quick energy. Proteins support muscle repair and growth. Fats provide long-term energy, insulation and protection of organs.
碳水化合物是身体的主要燃料。面食、米饭等复合碳水提供持久能量，水果中的简单碳水则提供快速能量。蛋白质支持肌肉修复与生长。脂肪提供长期能量，并有保温和保护器官的作用。
Hydration is critical for maintaining performance. Dehydration can cause fatigue, loss of concentration and increased heart rate. Water is the best choice for most activities, while sports drinks may be useful during prolonged or intense exercise.
补水对维持表现至关重要。脱水会导致疲劳、注意力下降和心率升高。多数活动的最佳选择是水，长时间或高强度运动时可考虑运动饮料。
10. Safety and Injury Prevention | 安全与损伤预防
Preventing injuries in sport involves proper warm-up, using correct technique, wearing appropriate clothing and protective equipment, and respecting the rules of the game.
预防运动损伤需要充分热身、使用正确技术、穿合适的服装与护具，并遵守比赛规则。
Common acute injuries include sprains (damage to ligaments), strains (damage to muscles or tendons), fractures and cuts. Chronic injuries, like shin splints and tennis elbow, develop over time due to overuse.
常见急性损伤包括扭伤（韧带损伤）、拉伤（肌肉或肌腱损伤）、骨折和割伤。慢性损伤如胫骨应力综合征和网球肘，因长期过度使用逐渐形成。
The PRICE principle is a first aid method for soft tissue injuries: Protection, Rest, Ice, Compression and Elevation. In Year 8 PE, you should know how to apply PRICE and when to seek further help.
软组织损伤的急救原则是 PRICE：保护、休息、冰敷、加压和抬高。在八年级体育中，你需要知道如何实施 PRICE 以及何时寻求进一步帮助。
11. The Role of Physical Activity in Health | 体育活动在健康中的作用
Regular physical activity contributes to physical, emotional and social health. It helps control weight, strengthens bones and muscles, improves sleep and boosts self-esteem.
规律体育活动对身体、情绪和社交健康都有贡献。它有助于控制体重、强健骨骼与肌肉、改善睡眠并提升自信心。
The UK Chief Medical Officers recommend that children and young people aged 5-18 should engage in at least 60 minutes of moderate to vigorous physical activity every day. On three days a week these activities should include exercises that strengthen muscles and bones.
英国首席医务官建议 5-18 岁儿童和青少年每天至少进行 60 分钟中等至高强度体育活动。每周应有三天包含强化肌肉和骨骼的练习。
A sedentary lifestyle, with too much sitting and screen time, is linked to higher risks of obesity, poor posture and mental health issues. Balance between activity, rest and screen time is essential for healthy development.
久坐不动的生活方式，包括过多坐着和看屏幕，与肥胖、不良姿势和心理健康问题的风险升高有关。活动、休息和屏幕时间之间的平衡对健康发展至关重要。
12. Sportsmanship and Ethics | 体育精神与道德
In PE and sport, fair play means respecting opponents, officials and rules. Sportsmanship is about showing grace in victory and dignity in defeat. It includes shaking hands, applauding good play and taking responsibility for your actions.
在体育和运动中，公平竞争意味着尊重对手、裁判和规则。体育精神是要赢得光彩、输得体面，包括握手、为精彩表现鼓掌和为自己的行为负责。
Ethical issues in sport can involve cheating, doping, match-fixing or abusive behaviour. Understanding these issues helps you make positive choices and appreciate the true value of sport beyond just winning.
运动中的伦理问题可能涉及作弊、兴奋剂、假球或辱骂行为。理解这些问题有助于你做出积极选择，并认识到体育超越输赢的真正价值。
Teamwork and communication are central to many sports. They teach leadership, cooperation and problem-solving, all of which are skills you can use in other areas of life.
团队合作与沟通是许多运动的核心。它们培养领导力、协作和问题解决能力，这些技能都能应用到生活的其他方面。
Published by TutorHao | Physical Education Revision Series | aleveler.com
更多咨询请联系16621398022（同微信）
或截图后用「扫一扫 → 相册」选择本图