📚 Year 7 CCEA Media: Formula & Theorem Quick Reference Handbook | CCEA 七年级媒体：公式定理速查手册
This quick reference handbook collects the essential formulas, theorems, and conceptual equations you will encounter in Year 7 CCEA Media Studies. Each entry presents a key idea as a memorable formula, followed by clear explanations and practical examples. Use it to revise camera shots, narrative patterns, audience targeting, and the building blocks of media language.
这本速查手册汇集了 CCEA 七年级媒体课程中必备的公式、定理和概念方程式。每个条目都将核心思想提炼为易于记忆的公式，并配有清晰的解释和实用范例。你可以用它来复习镜头景别、叙事模式、受众定位以及媒介语言的基本构件。
1. Shot Size Formula | 镜头景别公式
In media, the choice of shot size tells the audience how much information to absorb and how close they feel to the subject. The basic formula is: Shot Size = Distance + Emotional Impact. A wider shot establishes context and setting, while a closer shot reveals detail and emotion.
在媒介中，景别的选择告诉观众要吸收多少信息以及他们与拍摄对象的亲近程度。基本公式为：景别 = 距离 + 情感冲击。广一点的镜头建立环境和场景，而近一点的镜头揭示细节与情感。
We can break this down: Extreme Long Shot (ELS) → Location & Scale; Long Shot (LS) → Full Body & Setting; Medium Shot (MS) → Waist Up & Interaction; Close-Up (CU) → Face & Emotion; Extreme Close-Up (ECU) → Detail (e.g., eyes, a ring). Understanding this formula helps you analyse why a director chose a particular distance for a moment.
我们可以将其分解为：远景 (ELS) → 地点与规模；全景 (LS) → 全身与场景；中景 (MS) → 腰间以上与互动；特写 (CU) → 面部与情绪；大特写 (ECU) → 细节（如眼睛、戒指）。理解这个公式有助于你分析导演为何在某一瞬间选择了特定的拍摄距离。
2. Camera Angle Theorem | 摄影机角度定理
The camera angle is not neutral; it creates a power relationship between the viewer and the subject. The theorem states: High Angle → Subject appears small, weak, or vulnerable; Eye Level → Equal status, neutral; Low Angle → Subject appears large, strong, or dominant; Dutch (Tilted) Angle → Unease, confusion, or action. This is sometimes called the power angle relationship.
摄影机角度并非中立；它在观众和被摄主体之间制造了一种权力关系。这一定理表明：俯拍角度 → 主体显得渺小、软弱或脆弱；平视角度 → 平等地位，中立；仰拍角度 → 主体显得高大、强壮或主导；斜角/荷兰角 → 不安、困惑或动感。有时这被称为权力角度关系。
When you see a villain shot from a low angle, the formula is: Low Angle + Villain = Intimidation. If a character is bullied and filmed from above, the equation is: High Angle + Victim = Powerlessness. Use this theorem to decode meaning in film, TV series, and even photographs.
当你看到反派被以仰角拍摄时，公式为：仰角 + 反派 = 威吓。如果一个受欺负的角色被从上方拍摄，方程式为：俯角 + 受害者 = 无力感。运用这一定理，你可以解读电影、电视剧甚至照片中的含义。
3. Colour Meaning Equation | 色彩意义方程式
Colour in media texts works like a symbol system. The equation is: Hue + Context = Meaning. Red can mean danger, love, or anger depending on the scene. Blue often signals calm, sadness, or technology. Yellow suggests warmth, warning, or madness. Green can represent nature, envy, or sickness. Filmmakers and graphic designers use colour palettes to support the story mood.
媒介文本中的色彩像一个符号系统在运作。方程式为：色相 + 语境 = 意义。红色可以表示危险、爱情或愤怒，取决于场景。蓝色常象征冷静、忧伤或科技感。黄色暗示温暖、警告或疯狂。绿色可以代表自然、嫉妒或病态。电影制作者和平面设计师利用调色板来烘托故事的氛围。
For analysis, you can write: Red costume + Dark alley = Potential danger. Golden sunset + Two friends = Nostalgia. A filter applied across a whole film creates a colour grading effect, which becomes part of the visual formula of the movie’s world.
分析时，你可以这样写：红色服装 + 暗巷 = 潜在危险。金色夕阳 + 两位朋友 = 怀旧。整部电影应用的滤镜会创造一种色彩分级效果，成为电影世界视觉公式的一部分。
4. Semiotics Basic Formula: Signifier + Signified = Sign | 符号学基本公式：能指 + 所指 = 符号
Media makes meaning through signs. The formula from semiotics is: Signifier (the physical form, e.g., a red heart icon) + Signified (the mental concept, e.g., love) = Sign (the complete meaning). This is fundamental to analysing posters, adverts, and any visual message. A white dove is the signifier; the signified is peace. Together they form the sign of peace.
媒介通过符号来创造意义。符号学的公式是：能指（物理形式，例如一个红色心形图标）+ 所指（心理概念，例如爱）= 符号（完整的含义）。这是分析海报、广告和任何视觉讯息的基础。白鸽是能指；所指是和平。二者共同构成和平的符号。
Sometimes one signifier can hold multiple signifieds. A crown can mean royalty, authority, or even a brand logo. This is called polysemy. In your exam answers, use the formula to show how images work: ‘The signifier (a wilted flower) and the signified (decay, lost hope) create a sign of despair.’
有时一个能指可以承载多个所指。王冠可以表示王权、权威，甚至某个品牌标志。这叫做多义性。在考试回答中，使用这个公式来说明图像的运作方式：“能指（一朵枯萎的花）和所指（衰败、破灭的希望）构筑了绝望的符号。”
5. Rule of Thirds Composition Formula | 构图三分法则
Many powerful images follow a grid formula: divide the frame into nine equal parts by two horizontal and two vertical lines. The formula states: Key elements placed along these lines or at intersection points = More dynamic, balanced, and engaging composition. A face at an intersection draws the eye naturally. A horizon along the upper or lower third creates a pleasing sky-land balance.
许多富有冲击力的画面都遵循一种网格公式：用两条水平线和两条垂直线将画面分成九个等份。公式为：关键元素放置在这些线条上或交叉点上 = 更具动感、平衡且引人入胜的构图。位于交叉点上的一张面孔会自然地吸引视线。将地平线放在上三分之一或下三分之一处，则能创造令人舒适的天空与陆地平衡。
You can express this as: Eye position ≈ Top-left or top-right intersection. Subject movement space ≈ Leading into the frame along the horizontal thirds. This formula is used in photography, film, and poster design. It helps organise visual information so the audience reads the image in the intended order.
可以这样表述：眼睛位置 ≈ 左上或右上交叉点。主体运动空间 ≈ 沿三分线的水平方向朝画面内部运动。这个公式被运用于摄影、电影和海报设计。它有助于组织视觉信息，让观众按照预期顺序阅读图像。
6. Narrative Structure Formula | 叙事结构公式
Most stories in media follow a pattern that can be written as an equation. The classic three-act formula is: Setup (Exposition + Inciting Incident) → Confrontation (Rising Action + Crisis) → Resolution (Climax + Denouement). This is often called the narrative arc, and it applies to films, TV episodes, comics, and video games.
大多数媒介中的故事都遵循一个可以写成方程式的模式。经典的三幕式公式为：建置（铺陈 + 激励事件）→ 对抗（上升动作 + 危机）→ 解决（高潮 + 结局）。这通常被称为叙事弧，适用于电影、电视剧集、漫画和视频游戏。
Todorov’s narrative theorem simplifies this further: Equilibrium → Disruption → Recognition → Attempt to repair → New equilibrium. For example, a superhero film starts with a peaceful city (equilibrium), a villain attacks (disruption), the hero realises the threat (recognition), battles the villain (attempt to repair), and peace returns—but often with a small change (new equilibrium).
托多罗夫的叙事定理进一步简化了这一过程：平衡 → 破坏 → 察觉 → 尝试修复 → 新的平衡。例如，一部超级英雄电影始于平静的城市（平衡），反派发动攻击（破坏），英雄意识到威胁（察觉），与反派战斗（尝试修复），和平恢复——但通常带有一丝变化（新平衡）。
7. Character Archetype Functions | 角色原型函数
Propp’s character theorem identifies recurring role functions in stories. Villain ≈ Opposes hero. Hero ≈ Seeks something and restores order. Donor ≈ Gives magical object or help. Helper ≈ Aids the hero on the quest. Princess ≈ Prize or sought person, often needs rescue. Dispatcher ≈ Sends hero on the mission. False Hero ≈ Pretends to be good but is exposed. Each character is a variable in the story function machine.
普罗普的角色定理识别了故事中反复出现的角色功能。反派 ≈ 与英雄作对。英雄 ≈ 追寻某物并恢复秩序。赠与者 ≈ 提供魔法物品或帮助。相助者 ≈ 协助英雄完成任务。公主 ≈ 奖赏或寻找的对象，常需要营救。派遣者 ≈ 派英雄去执行任务。假英雄 ≈ 伪装成好人但最终暴露。每个角色都是故事功能机器中的一个变量。
Modern media often mixes these functions: a single character might be both donor and helper. In your analysis, identify the function, not just the role title. Think of it as a formula: Character = f(hero, villain, donor…) where f represents the plot function assigned. This approach will improve your discussion of genre conventions.
现代媒介往往混用这些功能：一个角色可能同时是赠与者和相助者。在分析中，要识别的是功能，而不仅仅是角色称谓。可以将其看作一个公式：角色 = f（英雄，反派，赠与者……），其中 f 代表了被分配的情节功能。这种方法会提升你对类型惯例的讨论水平。
8. Target Audience Formula | 目标受众公式
Media producers define their audience using demographic and psychographic variables. The audience equation is: Target Audience = Demographics (Age, Gender, Location, Social Class) + Psychographics (Interests, Values, Lifestyle) + Media Habits (Platforms, Time of consumption). For example, a teen magazine might target: Ages 13-16, girls, interested in music and fashion, who use Instagram and TikTok in the evening.
媒介生产者使用人口统计和心理画像变量来界定受众。受众方程式为：目标受众 = 人口特征（年龄、性别、地点、社会阶层）+ 心理画像（兴趣、价值观、生活方式）+ 媒体使用习惯（平台、消费时段）。例如，一本青少年杂志的目标可能是：13-16 岁、女孩、对音乐和时尚感兴趣、在晚间使用 Instagram 和 TikTok。
In your coursework, you must turn this into a short profile statement: ‘The primary target audience is boys aged 10-12, from urban areas, who enjoy gaming and adventure stories, and watch YouTube after school.’ Then analyse how the text appeals to that group through language, imagery, and format.
在课程作业中，你必须将其转化为简短的人物档案陈述：“主要目标受众是 10-12 岁、来自城区的男孩，他们喜欢游戏和冒险故事，放学后观看 YouTube。”然后分析文本如何通过语言、图像和格式来吸引这个群体。
9. Media Text Decoding Theorem | 媒介文本解码定理
Stuart Hall’s encoding/decoding model can be written as a theorem: Producer encodes a preferred meaning → Text is distributed → Audience decodes it. The decoding can take three paths: Dominant (accepts the intended meaning), Negotiated (partly accepts, partly modifies), or Oppositional (rejects the intended meaning). This is crucial for understanding that meaning is not fixed.
斯图亚特·霍尔的编码/解码模型可以写成一个定理：生产者编码一种首选意义 → 文本被分发 → 受众进行解码。解码可能走上三条路径：主导式（接受原意）、协商式（部分接受、部分修改）或对抗式（拒绝原意）。这对于理解意义并非固定不变至关重要。
When analysing an advert for a fast-food burger, the preferred meaning might be ‘delicious and satisfying’. A negotiated reading might be ‘tasty, but I know it is not healthy’. An oppositional reading could be ‘this advert manipulates young people into eating unethically produced food’. Always consider multiple readings.
在分析一则快餐汉堡广告时，首选意义可能是“美味而令人满足”。协商式解读可能是“好吃，但我知道它不健康”。对抗式解读则可能是“这则广告在操纵年轻人食用非道德方式生产的食物”。要始终考虑多种解读。
10. Media Production Process Formula | 媒体制作流程公式
Every media product goes through stages that form a production formula: Pre-production + Production + Post-production + Distribution = Final Media Text. Pre-production includes planning, scriptwriting, storyboarding, and budgeting. Production is the actual filming or recording. Post-production involves editing, sound design, and visual effects. Distribution is how the product reaches the audience (cinemas, streaming, broadcast).
每件媒介产品都要经历一系列阶段，构成一个制作公式：前期制作 + 制作 + 后期制作 + 发行 = 最终媒介文本。前期制作包括策划、撰写剧本、绘制分镜头脚本和预算。制作是实际的拍摄或录制。后期制作涉及剪辑、声音设计和视觉效果。发行是产品如何抵达受众（影院、流媒体、广播电视）。
In a school project, you might create a poster: Pre-production = sketches, collected images; Production = layout in software, taking photos; Post-production = colour correction, adding text; Distribution = putting it up on the school noticeboard or website. Understanding this process helps you manage your own creative work.
在学校项目中，你可能要制作一张海报：前期制作 = 草图、收集图片；制作 = 在软件中排版、拍摄照片；后期制作 = 色彩校正、添加文字；发行 = 张贴到学校布告栏或网站。了解这个流程有助于你管理自己的创作作品。
11. Sound Elements Equation | 声音元素方程
Sound in media texts can be described with an equation: Soundscape = Diegetic Sound + Non-diegetic Sound + Sound Bridge + Ambient Sound. Diegetic sound originates inside the story world (dialogue, footsteps). Non-diegetic sound comes from outside the story world (background music, voice-over). A sound bridge links one scene to the next. Ambient sound is the background atmosphere (wind, traffic).
媒介文本中的声音可以用一个方程式来描述：声景 = 剧情声 + 非剧情声 + 音桥 + 环境声。剧情声源自故事世界内部（对话、脚步声）。非剧情声来自故事世界外部（背景音乐、画外解说）。音桥将一个场景连接到下一个场景。环境声是背景氛围（风声、车流声）。
Consider this simple formula: Suspense scene ≈ Low ambient drone + sudden silence + sharp non-diegetic sting. A cheerful vlog ≈ Upbeat non-diegetic music + clear diegetic dialogue + street ambience. When you write about sound, always classify it using these terms to show understanding.
想想这个简单公式：悬疑场景 ≈ 低沉的环境嗡鸣 + 突然的静默 + 尖锐的非剧情声音重击。一支轻快的视频博客 ≈ 欢快的非剧情音乐 + 清晰的剧情对话 + 街道环境音。在写作有关声音的内容时，始终使用这些术语进行分类，以展现你的理解。
12. Editing Pace Formula | 编辑节奏公式
Editing pace controls the heartbeat of a sequence. The measurable formula is: Pace ≈ Number of cuts per minute. Fast cutting (many short shots) creates excitement, urgency, or chaos. Slow cutting (long takes) allows tension to build or lets the audience absorb a landscape. Additionally, transitions like cross-dissolve or fade to black contribute to the rhythm and emotional meaning.
剪辑节奏控制着一个段落的脉搏。可量化的公式为：节奏 ≈ 每分钟剪切次数。快速剪辑（许多短镜头）制造兴奋、紧迫或混乱。慢速剪辑（长镜头）让紧张感积累或使观众沉浸于风景中。此外，诸如交叉溶解或淡出到黑场的转场方式也会对节奏和情感意义产生影响。
In an action montage, you might count 20 cuts in 30 seconds. The editing equation is: High cut rate + Short shot duration = Intense energy. A conversation scene might use shot-reverse-shot with a moderate pace. Analyse editing by considering: Cut frequency, shot length, and transition type. This helps explain how the viewer’s emotion is guided.
在一段动作蒙太奇中，你可能会数到 30 秒内有 20 次剪切。剪辑方程式为：高剪辑率 + 短镜头时长 = 强烈的能量。一段对话场景可能使用中速的正反打镜头。分析剪辑时，需要考虑：剪切频次、镜头长度和转场类型。这有助于解释观众的情绪是如何被引导的。
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