📚 IB and CIE English: Mastering Letter Writing for Exams | IB 与 CIE 英语：书信写作考点精讲
Letter writing remains a staple of English assessment in both IB English B and CIE IGCSE English. Candidates who master the art of tailoring a letter to a specific audience, purpose and register consistently earn top marks. This revision guide unpacks the examiners’ expectations, dissects formal and informal conventions, and supplies practical strategies you can use under timed conditions. Whether you are sitting Paper 1 for IB or tackling the directed writing task for CIE, the principles outlined here will help you write with clarity, coherence and confidence.
书信写作依旧是 IB 英语 B 和 CIE IGCSE 英语考试中的核心题型。能够针对特定读者、目的与语域量身打造信件的考生总能斩获高分。这篇备考指南拆解了考官的期待，剖析了正式与非正式信件的规范，并提供可在限时条件下使用的实用策略。不论你是参加 IB 试卷一还是应对 CIE 的定向写作任务，本文阐述的原则都将助你写得清晰、连贯且自信。
1. Understanding Letter Tasks in IB and CIE Exams | 理解 IB 与 CIE 考试中的书信任务
Both IB English B Paper 1 (Writing) and CIE IGCSE English as a First Language (0500/0522) set letter-writing prompts that test a candidate’s ability to adopt an appropriate voice. IB tasks often present a choice of text types, including formal letters to authorities or informal letters to friends. CIE directed writing may specify ‘write a letter’ alongside a report or article, with the prompt embedding a given scenario and bullet points that must be covered. Marks are allocated for content, organisation and language. Identifying the exact recipient, the relationship between writer and reader, and the intended outcome is the first step toward a high-scoring response.
IB 英语 B 试卷一与 CIE IGCSE 英语第一语言均设书信写作题目，考查考生采用恰当语气的能力。IB 任务通常提供多种文本类型选择，包括写给权威的正式信件和写给朋友的非正式信件。CIE 定向写作可能指定“写一封信”并附报告或文章，提示中会嵌入特定情境和必须覆盖的要点。分数按内容、组织结构与语言质量分配。查明确切收信人、作者与读者的关系以及预期结果，是拿到高分的第一步。
Before you write a single word, underline the purpose phrase (e.g. ‘persuade’, ‘complain’, ‘invite’, ‘advise’). In the IB rubric, task achievement is non-negotiable; in CIE, missing a bullet point costs you content marks. For example, a prompt that reads “Write a letter to the council explaining your views on a proposed shopping centre” requires you to adopt a civic tone, while “Write a letter to a friend about a memorable holiday” demands warmth and personal detail. Always spend the first three minutes deconstructing the question.
动笔之前，先画出目的短语（如“说服”、“投诉”、“邀请”、“劝告”）。在 IB 评分量规中，任务达成是不可妥协的；CIE 里，漏掉提示要点会扣内容分。比如，一道题目是“给市议会写信，阐述你对拟建购物中心的看法”，你需要采用公民口吻；而“给朋友写封信，讲述一次难忘的假期”则要求亲切的温度和个人细节。永远用最初三分钟拆解题意。
2. Formal vs Informal Letters: Key Distinctions | 正式与非正式信件：关键区别
Examiners track register shifts with surgical precision. In a formal letter, the language should feel courteous, impersonal and restrained. Avoid contractions (‘do not’ instead of ‘don’t’), colloquialisms and phrasal verbs that sound too conversational (‘put off’ becomes ‘delay’ or ‘postpone’). In an informal letter, you have license to sound natural and chatty, using contractions, friendly asides and even mild humour. However, an informal letter in an exam is not a text message: you still need paragraphing, a logical flow and a clear storyline.
考官会像外科手术般精准地追踪语域转换。正式信件中的语言应给人礼貌、非个人化且克制的印象。避免缩写（用“do not”而非“don’t”）、口语说法以及听上去过于随意的短语动词（“put off”变为“delay”或“postpone”）。非正式信件里，你可以自然闲聊，使用缩写、友善的插话甚至适度幽默。不过，考试中的非正式信件绝非手机短信：你仍需分段、保持逻辑脉络和清晰叙述。
Consider a complaint letter to a company versus a thank-you letter to a cousin. The former opens with ‘Dear Sir/Madam’ and ends with ‘Yours faithfully’, employs phrases like ‘I am writing to express my dissatisfaction with…’ and avoids emotional outbursts. The latter might start with ‘Hi Liz’ and close with ‘Lots of love’, including sentences such as ‘You’ve no idea how thrilled I was!’ The tone must match the social distance implied by the prompt.
试想一封写给公司的投诉信与一封写给表亲的感谢信。前者以“Dear Sir/Madam”开篇、以“Yours faithfully”收束，使用诸如“I am writing to express my dissatisfaction with…”的句式，避免情绪宣泄。后者则可能以“Hi Liz”开头、以“Lots of love”收尾，带着“You’ve no idea how thrilled I was!”这样的句子。语气必须与题目暗示的社交距离相匹配。
3. Structure and Layout: The Standard Format | 结构与布局：标准格式
Exam boards expect a recognisable letter layout. For formal letters, include your address (top right) and the date, then the recipient’s address (left, below your address). After the salutation, use a subject line if appropriate. Check the convention required by your syllabus: some CIE tasks ask for a simplified format without addresses to save time, while IB may reward proper layout. Informal letters need only a date and a salutation. The body should be organised into clear paragraphs, each with a single main idea. Leave a line between paragraphs and end with an appropriate closing phrase and your signature.
考试局期望信件具有可辨识的格式。正式信件需包含你的地址（位于右上方）与日期，再写明收信人地址（左方，低于你的地址）。问候语之后，可酌情加事由行。要核查教学大纲要求的格式：一些 CIE 任务为了节省时间会要求简化格式、不写地址，而 IB 可能对规范的排版给予加分。非正式信件只需日期和称呼。正文应划分清晰的段落，每段承载一个主旨。段与段之间空一行，最后以恰当的结束语和签名收束。
Avoid squeezing everything into a single block. A well-paragraphed letter signals planning. The opening paragraph should state the purpose immediately. The middle paragraphs develop points with explanations or anecdotes. The concluding paragraph may summarise a request, express anticipation, or offer a warm sign-off. If the prompt asks for a letter of advice, for instance, open with empathy, then offer suggestions in separate paragraphs, and end with encouragement. This scaffold works for both formal and informal contexts.
切忌把所有内容塞进一个大板块。段落分明的信件传递出规划力。开头段应立即表明目的。中间段落用解释或轶事展开各点。结尾段可总结请求、表达期待或给予温暖收束。假如题目要求写一封劝告信，就先用共情开篇，再分段落给出建议，最后以鼓励作结。这一支架适用于正式和非正式语境。
4. Salutations and Closings: Getting Them Right | 问候语与结束语：准确使用
Greetings set the register instantly. In formal letters, if you know the recipient’s name, write ‘Dear Mr Brown’ or ‘Dear Dr Lee’. Use ‘Dear Sir/Madam’ when the name is unknown—this is a classic CIE safe option. Avoid ‘Dear Sir’ alone, as it feels dated. Informal greetings range from ‘Dear Grandma’ to ‘Hey Tom’. IB examiners are lenient with informal openings, but they still expect consistency. Closings follow the greeting logic: ‘Yours sincerely’ pairs with a named recipient in a formal letter (Dear Mr Brown … Yours sincerely), while ‘Yours faithfully’ goes with Dear Sir/Madam. In informal letters, phrases like ‘Best wishes’, ‘Take care’, ‘Love’, or ‘Cheers’ are acceptable, chosen according to your relationship.
称呼瞬间定下语域基调。正式信件中若知悉收信人姓名，可写“Dear Mr Brown”或“Dear Dr Lee”。不知姓名时用“Dear Sir/Madam”——这是 CIE 经典稳妥之选。避免单用“Dear Sir”，这会显得过时。非正式称呼涵盖“Dear Grandma”到“Hey Tom”。IB 考官对非正式开场较为宽容，但仍要求一致性。结束语遵循称呼逻辑：正式信函中，带姓名的“Dear Mr Brown”对应“Yours sincerely”，而“Dear Sir/Madam”则接“Yours faithfully”。非正式信件里，“Best wishes”、“Take care”、“Love”或“Cheers”等均可接受，依关系亲疏选取。
A common error is mixing registers: opening with ‘Dear Sir’ and closing with ‘Best wishes’. This confuses the reader and costs register marks. Another trap is using American closings like ‘Sincerely’ in a British English exam—while not heavily penalised, sticking to standard British conventions is safer. Always capitalise the first letter of each closing word and follow with a comma. Then, on a new line, print or sign your full name (formal) or your first name (informal).
常见错误是混用语域：以“Dear Sir”开头、以“Best wishes”收尾。这会让读者困惑，丢失语域分。另一陷阱是在英式英语考试中使用美式收束如“Sincerely”——虽不会严扣，但遵循标准英式惯例更稳妥。结束语各单词首字母一律大写，后跟逗号。而后另起一行，打印或签署全名（正式）或名字（非正式）。
5. Tone and Register: Adapting Your Language | 语气与语域：适应语境
Your vocabulary choices are the sharpest register markers. Formal letters thrive on polite modals: ‘I would be grateful if you could…’, ‘I wish to bring to your attention…’, ‘Please do not hesitate to contact me’. Impersonal structures (‘It has come to my notice that…’) elevate formality. In contrast, informal letters glow with contractions, idioms, phrasal verbs and personal asides: ‘I was over the moon’, ‘You’ll never guess what happened’, ‘I’ve been meaning to write’. The trap is sounding overly stiff with a friend or too relaxed with a potential employer. Read your draft aloud in your head—if it sounds unnatural, adjust.
词汇选择是最鲜明的语域标记。正式信件需用好礼貌情态：“I would be grateful if you could…”、“I wish to bring to your attention…”、“Please do not hesitate to contact me”。非人称结构（“It has come to my notice that…”）提升正式程度。相反，非正式信件因缩写、习语、短语动词和个人插话而产生温度：“I was over the moon”、“You’ll never guess what happened”、“I’ve been meaning to write”。陷阱在于对朋友过分拘谨，或对潜在雇主过分随意。在心里默读草稿——如果听来不自然，就调整。
Sentence length also shapes tone. Long, complex sentences with subordinate clauses suit formal argumentation; shorter, punchier sentences suit informal storytelling. A formal letter of application might contain: ‘Having gained substantial experience in customer service, I believe I am well placed to contribute to your team.’ An informal account might go: ‘Guess what? I got the job! I couldn’t believe it.’ Vary your syntax, but ensure it matches the task’s social setting.
句长同样塑造语气。带从句的长句复合句适合正式论说；简短有力的句子适合非正式叙述。一封正式求职信可能写：“Having gained substantial experience in customer service, I believe I am well placed to contribute to your team.” 非正式叙述可以是：“Guess what? I got the job! I couldn’t believe it.” 句式要变化，但必须贴合任务设定的社会场景。
6. Purpose and Audience: Shaping Content | 目的与受众：内容塑造
Every letter in an exam has a dual audience: the imaginary recipient and the examiner. You must satisfy both. The imaginary recipient wants a relevant, well-argued, emotionally appropriate message. The examiner wants evidence of your writing skills: a clear purpose statement, developed ideas, a logical structure, precise vocabulary and grammatical control. Before writing, ask: Who exactly am I writing to? What do I want them to think, feel or do after reading? Your answers decide not just what you include, but what you leave out.
考试中的每封信都有双重受众：想象中的收信人和考官。你必须同时满足二者。想象的收信人希望得到切题、内容充实且情感得当的信息。考官则希望看到你写作能力的证据：明确的目的陈述、展开的思路、逻辑结构、精准词汇和语法掌控力。写作前先问自己：我究竟写给谁？我希望他们读后怎么想、怎么感觉或怎么做？这些答案不仅决定你写什么，也决定你舍弃什么。
For example, a CIE task asking you to write a letter to a newspaper editor about environmental issues must demonstrate public awareness, reasoned argument and a respectful tone. You need facts, not feelings. An IB task asking for a letter to a friend describing a festival demands sensory detail, personal reaction and lively vocabulary. Keep the reader’s knowledge and expectations in mind: a school principal does not need definitions of basic terms; a friend might enjoy your inside jokes. Tailoring content to audience is a high-level skill that distinguishes A-grade candidates.
例如，一份 CIE 任务要求你给报纸编辑写信谈环境问题，就必须展现公共意识、理性论证和尊重的口吻。你需要事实，而非情绪。一份 IB 任务要求给朋友写信描述一个节日，则需要感官细节、个人反应和活泼的词汇。把读者的知识与期待放在心上：学校校长不需要基本术语的定义；朋友或许会喜欢你的内部玩笑。内容贴合受众是一项高阶技能，它把 A 等考生区分开来。
7. Common Letter Types in Exams | 考试中常见信件类型
Although prompts vary, most exams recycle a limited set of letter types. Recognising these templates can save you planning time. The complaint letter: state the problem, give concrete details (dates, order numbers), explain the impact, and request a specific remedy. The letter of advice: empathise first, offer two or three suggestions with justifications, and end with encouragement. The invitation letter: deliver the invitation warmly, detail date/place/time, suggest what to bring, and convey anticipation. The job application or enquiry letter: introduce yourself, highlight relevant experience, link your skills to the role, and ask for an interview or information.
虽然提示千变万化，多数考试都循环使用有限的几类信件。认出这些模板可以节省构思时间。投诉信：陈述问题，给出具体细节（日期、订单号），解释影响，并要求明确的补救措施。建议信：先表达共情，提出两三条建议并说明理由，最后以鼓励结尾。邀请信：热情发出邀请，详述日期、地点与时间，建议所需携带物品，表达期待。求职或询问信：自我介绍，突出相关经历，将技能与职位相关联，要求面试或索取信息。
Another common type is the narrative/descriptive letter to a friend or relative. This tests your ability to recount an event vividly. Open with a hook (‘You’ll never guess what happened on Saturday’), sequence the events clearly, include direct speech or reported thought, and end with a reflective comment. IB may also ask for a letter to a local council or a letter of persuasion, where you present a viewpoint and appeal to logic and shared values. Practise all these sub-types so the boilerplate structures are second nature by exam day.
另一常见类型是给朋友或亲人的叙述/描写信。这考查你生动叙述事件的能力。用悬念开篇（“You’ll never guess what happened on Saturday”），清晰地排列事件，插入直接引语或内心独白，并以反思性评论收束。IB 还可能要求给地方议会写信或写劝说信，在其中呈现观点、诉诸逻辑和共同价值。把所有子类型都练到得心应手，考场上方能游刃有余。
8. Language Features for High Marks | 高分语言特色
To reach the top band, sprinkle in a controlled range of sophisticated features. Use cohesive devices naturally: ‘Furthermore, Consequently, On reflection, Despite this’ for formal letters; ‘Anyway, By the way, Still, At least’ for informal ones. Vary sentence openings—adverbial clauses (‘Having considered the options, I decided…’), participle phrases (‘Disappointed by the delay, I contacted support’), and fronted adjectives (‘Eager to help, she volunteered’). Demonstrate lexical range with precise verbs (‘pledge’, ‘alleviate’) instead of over-general ones (‘say’, ‘fix’).
要跻身高分段，得适切地穿插一系列高级特征。自然运用衔接手段：正式信件用“Furthermore、Consequently、On reflection、Despite this”；非正式信件用“Anyway、By the way、Still、At least”。变换句首——副词从句（“Having considered the options, I decided…”）、分词短语（“Disappointed by the delay, I contacted support”）、前置形容词（“Eager to help, she volunteered”）。用精确动词（“pledge”、“alleviate”）而非空泛的词语（“say”、“fix”），展示词汇广度。
Formal letters benefit from nominalisation: ‘The implementation of the policy led to an improvement’ rather than ‘They implemented the policy and it improved’. Informal letters gain sparkle from idiomatic language: ‘I was on cloud nine’, ‘It was a piece of cake’. Rhetorical questions and short emphatic sentences can enhance persuasive or reflective passages. However, never force sophisticated features if they distort clarity. Examiners prefer accurate, functional language over misplaced complexity.
正式信件可借助名词化：“The implementation of the policy led to an improvement”胜过“They implemented the policy and it improved”。非正式信件因习语而生辉：“I was on cloud nine”、“It was a piece of cake”。修辞问句和短促强调句能提升劝说或反思段落的表达力。但切莫强行堆砌复杂结构以致损害清晰度。考官偏爱准确、实用的语言，而非错位的高深。
9. Common Mistakes to Avoid | 常见错误与规避
One of the biggest pitfalls is ignoring the prompt’s bullet points. CIE and IB mark schemes reward content coverage. Read the question twice and tick off each instruction as you draft. Another frequent error is register drift: starting formally and then slipping into informal language halfway through. This often happens when candidates become absorbed in their argument and forget the imagined reader. Keep the recipient’s face in your mind’s eye.
最大的陷阱之一是忽略提示中的要点。CIE 和 IB 评分方案看重内容的覆盖度。读题两遍，并在拟稿时逐一勾掉每项指令。另一个常见错误是语域漂移：起笔正式，行到半途滑入非正式语言。这常发生在考生深入论述而忘记想象读者之时。心里始终装着收信人的面孔。
Grammatical slips in letter conventions also hurt. Misspelling ‘faithfully’ or ‘sincerely’, forgetting to capitalise the month, or writing ‘Your sincerely’ leaves a poor impression. Exam proofreading should include a specific check on opening and closing phrases. Additionally, avoid copying large chunks of the prompt word-for-word; paraphrase to show your own command. Finally, do not write a diary entry disguised as a letter—include the salutation and closing, and maintain the conversational yet structured tone of a letter throughout.
信件惯例中的语法错误也很致命。拼错“faithfully”或“sincerely”，忘记大写月份，或写成“Your sincerely”都会留下坏印象。考场校对应专门检查开篇与收束语。此外，避免大段逐字照抄提示；改用自己的话以展示语言驾驭力。最后，切忌把日记伪装成信件——从头至尾都要保留称呼和结束语，并保持信件对话式但结构分明的语气。
10. Model Letter Analysis: Formal and Informal | 范文分析：正式与非正式信件
Below is an extract from a formal letter of complaint followed by an informal letter fragment. Notice how language, structure and tone diverge. Formal extract: ‘Dear Customer Services Manager, I am writing to bring to your attention the unsatisfactory condition of the furniture delivered to my address on 14 March. Despite assurances that the items were checked before dispatch, the tabletop arrived with a deep scratch and the chair legs were loose. I would appreciate it if you could arrange a replacement or a full refund at your earliest convenience. Please find the order reference and photographs attached.’ Here the language is measured, the grievance is factual, and the request is polite but firm.
以下是一封正式投诉信的节选与一封非正式信件的片断。留心语言、结构与语气如何分野。正式节选：“Dear Customer Services Manager, I am writing to bring to your attention the unsatisfactory condition of the furniture delivered to my address on 14 March. Despite assurances that the items were checked before dispatch, the tabletop arrived with a deep scratch and the chair legs were loose. I would appreciate it if you could arrange a replacement or a full refund at your earliest convenience. Please find the order reference and photographs attached.” 此处语言克制，投诉基于事实，请求礼貌而坚定。
Informal fragment: ‘Hey Jen, you won’t believe the chaos that arrived instead of my new table! The delivery guys unloaded it, and I could already see a massive scratch right across the top. And two chair legs were wobbling like jelly. I was fuming. Anyway, I’ve told them to sort it out pronto—fingers crossed. Can’t wait for you to see the flat when everything is actually sorted!’ This version is immediate, emotional and rich with spoken-language features. Both letters serve the same purpose but are adjusted to the relationship. During revision, write out parallel versions of the same scenario to internalise register switches.
非正式片断：“Hey Jen, you won’t believe the chaos that arrived instead of my new table! The delivery guys unloaded it, and I could already see a massive scratch right across the top. And two chair legs were wobbling like jelly. I was fuming. Anyway, I’ve told them to sort it out pronto—fingers crossed. Can’t wait for you to see the flat when everything is actually sorted!” 这一版本直接、情绪化且富有口语色彩。两封信目的相同，却依据彼此关系做了调整。复习时，试着为同一场景写出平行版本，把语域转换内化于心。
11. Practice Tips and Exam Strategies | 练习建议与考试策略
Build a bank of standard phrases for each letter type. For complaints: ‘I wish to express my disappointment with…’, ‘I trust you will take appropriate steps to rectify…’. For invitations: ‘It would be wonderful if you could join us…’, ‘I took the liberty of booking…’. Memorising three to five versatile expressions per function saves time and reduces anxiety. Timed practice is essential: set aside 30-40 minutes depending on your exam, write a complete letter under conditions, then self-assess against the mark scheme. Focus your feedback on register, structure and content coverage.
为每类信件建立一个标准表达库。投诉信：“I wish to express my disappointment with…”、“I trust you will take appropriate steps to rectify…”。邀请信：“It would be wonderful if you could join us…”、“I took the liberty of booking…”。每种功能记牢三到五个通用表达，既省时又减轻焦虑。计时练习不可或缺：视考试时长安排 30-40 分钟，在实战条件下完成一封信，然后对照评分方案自评。反馈重点放在语域、结构和内容覆盖上。
On exam day, read all task options before choosing. Pick the letter type you are most confident with. In IB, if there is a choice between a formal report and an informal letter, and you excel
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