由苦瓜学长功能句库精选组装，经 2010–2026 全部 17 套英语二真题套用 + DuoGrader 双盲双评验证。结构：万能骨架 + 目的句速查 + 六类插件，覆盖英语二全部小作文题型。
31句背诵量
17套真题验证
8.0均分·第四档
100%格式满分
一组装公式
称呼
Dear ___,
书信才有；称呼按题面人物
骨架①问候
I hope this message finds you well.
骨架②目的
【目的句：按题型查速查表】
第二节 9 句任选其一
骨架③引出
To be more specific, the main points can be arranged as follows.
插件×3
【插件第1句】【插件第2句】【插件第3句】
按题型取一套，或跨类拼装
骨架④结尾
Thank you for your time and attention, and I look forward to your positive response.
落款
Yours sincerely,
Li Ming
Li Ming
署名以题面要求为准
2-4-1 打法 · 全文 100–130 词（模板句约 60 词，其余全留给槽位细节）
二目的句速查表 9 句
把「题目相关词」换成题干核心词即可。
建议The primary aim of this letter is to offer some suggestions on 题目相关词.
邀请The purpose of this letter is to invite you to take an active part in 题目相关词.
道歉This letter is intended to offer a sincere apology for the problems caused by 题目相关词.
祝贺The purpose of this letter is to congratulate you sincerely on your remarkable success in 题目相关词.
介绍/推荐The purpose of this letter is to recommend 题目相关词 as a valuable opportunity for you.
通知The purpose of this notice is to remind everyone of the upcoming activities related to 题目相关词.
感谢The purpose of this letter is to extend my sincere gratitude for 题目相关词.
咨询The central purpose of this letter is to seek your advice on 题目相关词.
投诉This letter serves as a formal complaint about the recent problems with 题目相关词.
▸ 解释类（2018「道歉+解释」）直接用道歉目的句，解释部分由道歉插件第 2 句（虚拟语气）承担。
▸ 接受邀请类（2017）：用感谢目的句（感谢邀请），接受动作写进插件第 1 句槽位。
三万能骨架 4 句 · 所有题型共用
1
问候I hope this message finds you well.
2
引出To be more specific, the main points can be arranged as follows.
3
结尾Thank you for your time and attention, and I look forward to your positive response.
4
落款Yours sincerely, Li Ming（署名以题面为准；通知类无称呼无问候，见第五节）
四六类插件 第二段第 2–4 句 · 每类 3 句
① 建议类蓝
1First and foremost, 动词ing，如 putting 题目相关词 into consistent practice is strongly recommended, as it can help you have a clearer insight into 题目相关短语.
亮点：动名词主语 + 被动 + as 原因从句
2In addition, it is strongly recommended that you should 要做的事 so as to improve the situation.
亮点：主语从句 + should 虚拟语气
3Last but not least, it is advisable for you to 要做的事. Only in this way can you truly 好处是什么.
亮点：Only 前置倒装
② 邀请类青
1In particular, it would be a great honor if you could 受邀行动 for 题目相关词, which serves as an ideal chance to 参加收获.
亮点：if 虚拟委婉 + 非限定从句
2What is more, taking this chance to 要做的事 in 题目相关词 will significantly enhance 相关能力或品质.
亮点：动名词短语作主语
3Last but not least, your involvement in 题目相关词 will not only 好处之一 but also 好处之二.
亮点：not only…but also 平行结构。注意：broaden your horizons 必须复数
③ 道歉类玫红
1In connection with 题目相关词, my act of 过失行为 directly led to 产生的影响, which I deeply regret.
亮点：which 非限定从句收尾
2In retrospect, if I had 本应做到的事 when handling 题目相关词, the situation would not have become so serious.
亮点：对过去的虚拟语气
3Last but not least, I have already planned to 补救措施, which I hope can partly make up for the loss caused by 题目相关词.
亮点：插入式定语从句 which I hope can + 过去分词后置定语
④ 祝贺类琥珀
1With such a remarkable outcome in 题目相关词, it is evident that you have made persistent efforts in 付出或过程.
亮点：with 复合结构 + it 形式主语从句
2Moreover, it is your habit of 良好习惯 in 题目相关词 that lays a solid foundation for such an achievement.
亮点：it is…that 强调句
3Viewed in a long-term perspective, this success in 题目相关词 will become a lasting source of motivation for you to 长期目标.
亮点：过去分词作状语开头
⑤ 介绍/推荐类紫
1In essence, 题目相关词 can be understood as 概括性定义, with a special focus on 重点方面.
亮点：with 复合结构
2What is more, the design of 题目相关词 highlights 亮点设计, making it easier to 使用或理解方面的好处.
亮点：现在分词作结果状语
3In summary, with its focus on 核心优势, 题目相关词 can effectively support 具体任务或目标.
亮点：with 短语插入 + effectively support
⑥ 通知类石板灰
1In terms of schedule, 题目相关词 is arranged from 起始时间 to 结束时间, during which 主要环节 will be carried out.
亮点：介词+which 非限定从句 + 被动
2Moreover, 题目相关词 will be conducted in the form of 形式1, followed by 形式2, so as to enhance 预期效果.
亮点：过去分词插入结构
3Taken together, the above arrangements call for 参加对象需要做的事, without which 题目相关词 cannot achieve the expected results.
亮点：without which 介词+which 从句
五通知类格式变体 1-4-1
NOTICE
目的句
【通知目的句】1 句
主体 4 句
【引出句】+ 通知类插件 × 3
收尾
If there is any adjustment to 题目相关词, additional information will be released in due course.
落款
Student Union题面不许署名时用机构名
六槽位填写铁律
评分实证得出，比背句子更重要。
最重要每个题面要点必须具体落实，宣告 ≠ 完成
17 套实测中唯一一次掉档（2014 被仲裁到第三档 6 分）的根因：题面要求 ask for advice，信里只在开头宣告了"求建议"，全信没有一个问号。修改后补上真问句，双评立刻回到 8 分。
- 要点含 ask for advice / ask his opinion → 第二段末必须写出以问号结尾的具体问题（问天气、交通、花费、流程等 2–3 项）
- 要点含 demand a prompt solution → 写明具体诉求（replacement / full refund / reply within a week）
- 要点含 tell him about the details / arrangements → 给出硬信息：时间、地点、平台、流程环节
2. broaden one's horizons 用复数；学业用 studies。
3. 别和引出句打架：引出句说"要点如下"，后面三句就要各顶一个要点，别写成三条空泛好处。
4. 署名看题面：真题 2010–2012 要求 Zhang Wei，其余 Li Ming；要求不用名字时署 Student Union 之类机构名。
5. 允许跨类拼句（书的原方法）：第二段按题目要点从不同插件各取一句，前缀 First and foremost / In addition / What is more / Last but not least 可以互换位置。
6. 引言句 "the main points can be arranged as follows" 若与内容不符（如全是好处没有要点），可整句删掉，第二段直接以插件句开头（第二段 3 句也符合 3–5 句公式）。
七历年真题拼法对照表 17 套实测验证
| 年份 | 题面要点 | 目的句 | 第二段拼法 |
|---|---|---|---|
| 2010 | 感谢接待 + 欢迎来华 | 感谢 | 邀请①②③ |
| 2011 | 祝贺录取 + 大学准备建议 | 祝贺 | 祝贺①② + 建议③ |
| 2012 | 投诉电子词典 + 限时解决 | 投诉 | 介绍①(描述故障) + 建议②③ |
| 2013 | 告知义卖细节 + 动员参加 | 邀请 | 邀请①②③ |
| 2014 | 介绍作息习惯 + 请提建议 | 咨询 | 介绍①② + 具体问句 |
| 2015 | 介绍夏令营 + 招志愿者 | 通知 | 通知①②③（格式变体） |
| 2016 | 感谢祝贺 + 翻译建议 | 感谢 | 建议类①②③ |
| 2017 | 接受邀请 + 介绍讲座要点 | 感谢(谢邀请) | 邀请①(改为接受) + 介绍②③ |
| 2018 | 取消拜访致歉 + 另约时间 | 道歉 | 道歉①②③ |
| 2019 | 建议辩题 + 告知安排 | 建议 | 介绍①(辩题) + 建议② + 通知①(安排) |
| 2020 | 介绍故宫 + 游览建议 | 介绍 | 介绍①② + 建议③(tips) |
| 2021 | 邀请参会 + 告知细节 | 邀请 | 邀请①②③（细节写进①的槽位） |
| 2022 | 介绍美食节 + 邀请参加 | 介绍 | 介绍① + 邀请①② |
| 2023 | 建议选机器人展 + 理由 | 建议 | 介绍①(理由) + 邀请② + 建议③ |
| 2024 | 提出调查方案 + 征求意见 | 建议 | 介绍①(方案) + 通知②(方式) + 通知③(请意见) |
| 2025 | 介绍短剧 + 邀请参演 | 介绍 | 介绍①② + 邀请① |
| 2026 | 谈视频感受 + 想多了解 | 感谢 | 介绍①(感受) + 祝贺②(强调句) + 邀请②(变体) |
八组装示范
2021 真题：邀请 Jack 参加线上会议。黄色高亮 = 骨架句。
Dear Jack,
I hope this message finds you well. The purpose of this letter is to invite you to take an active part in the online meeting about study and campus life, which is to be held on Zoom at seven in the evening of June 15.
To be more specific, the main points can be arranged as follows. In particular, it would be a great honor if you could share your learning experience as an international student at the meeting, which serves as an ideal chance to exchange ideas with Chinese students. What is more, taking this chance to join the panel discussion will significantly enhance your cross-cultural communication skills. Last but not least, your involvement in the meeting will not only broaden your horizons but also help you adapt to campus life more quickly.
Thank you for your time and attention, and I look forward to your positive response.
Yours sincerely,
Li Ming
黄色 = 骨架句 · 橙色底 = 题目相关词槽位 · 灰色虚线 = 自由槽位
九DuoGrader 验证数据 2026-10-10
17/17全部第四档及以上
8.03均分（最低 7.5 · 最高 9.0）
88%语法与句式得分率
17/17格式维度满分
- 方法：17 套真题（2010–2026，官方 PDF 逐字题面）逐套套模板写作 → 确定性预检 → 双盲双评（A/B 独立阅卷员）→ 同档脚本均值 / 异档仲裁员终裁。
- 维度表现：格式 17/17 满分；语法与句式 88%；任务完成 81%；组织与衔接 76%；词汇与语域 67%。
- 依评分迭代 4 处：介绍类第 3 句换为 In summary 句；邀请类①前缀 At this point→In particular；邀请类③前缀 Taken together→Last but not least；horizon→horizons。
- 复测：2017 稳定 8.0；2021 终裁 8.0；2014 按"填写铁律"改写后双评一致 8.0。
- 完整评分档案在本地 真题测试/ 文件夹（题面、作文、双评报告、仲裁与终裁 JSON 全留档）。