很多同学写定语从句只会用最基础的 “who/which/that” 模式——比如 “the people who live in the city”。这种句子没错，但信息密度太低，一篇800字的雅思作文如果反复用这种结构，会显得单调且缺乏层次感。
真正的”高级感”来自两种能力：在合适的时机用定语从句增加信息量，以及掌握不同形式的定语从句以控制句子节奏。
今天我们从FT一篇关于朝鲜粮食危机的报道中，提取5种最实用的定语从句结构——每一种都有对应的”学生版vs升级版”对比，让你看完就能直接用。
📖 FT原文选段
Kim Jong Un has issued a warning over food shortages in North Korea as the dictator urged political officials to improve agricultural production.
Kim told senior cadres that “the people’s food situation is now getting tense”, blaming damage caused by a typhoon last year for shortfalls in grain yields.
The leader’s comments, made as he presided over the ruling Workers’ Party central committee in Pyongyang, was the latest indication of strains on the North Korean economy.
However, Peter Ward, a Seoul-based expert with the University of Vienna who tracks the North Korean economy, pointed to reports of “unprecedented” price increases for staples such as corn and rice in recent weeks.
“The people who are really going to suffer are the people who don’t have a political voice,” Ward said.
Exacerbating the bleak outlook, Pyongyang, which continues to claim zero cases of coronavirus, appears to have taken an ultra-cautious approach to accepting foreign offers of vaccines or food aid.
Rachel Lee, a former US government North Korea analyst who is now with 38 North at the Stimson Center, a Washington think-tank, said Kim might also be acknowledging food shortages to “crack the whip on the farming sector”.
中文对照
金正恩就朝鲜粮食短缺发出警告，敦促政治官员抓好农业生产工作。
金正恩对高级干部表示，去年台风灾害导致粮食歉收，导致”人民的粮食情况紧张”。
这名领导人在平壤主持劳动党中央委员会会议时做出了此番讲话，这是关于朝鲜经济面临压力的最新信号。
不过，跟踪朝鲜经济的维也纳大学驻首尔专家彼得·沃德指出，有消息称玉米和大米等主食最近数周出现”史无前例”的涨价。
“真正受苦的是那些在政治上发不出声音的人。”
让局势更加惨淡的是，持续宣称零新冠病例的平壤方面似乎对接受外国疫苗或粮食援助格外谨慎。
曾在美国政府中分析朝鲜问题、现在为华盛顿智库史汀生中心”北纬38度”工作的Rachel Lee表示，金正恩承认粮食短缺也可能是为了”鞭策农业部门增加产量”。
💡 5种定语从句核心结构
1. 过去分词简化——信息压缩术
原文:
The leader’s comments, made as he presided over the ruling Workers’ Party central committee in Pyongyang, was the latest indication of strains on the North Korean economy.
结构分析：
[名词], [过去分词短语], [谓语 + 其他]
这里的 made as he presided... 实际上是 which were made... 的简化版。分词作定语的核心规则是：把 “which + be动词 + 分词” 简化为 “分词”，去掉 which 和 be 动词，信息密度瞬间翻倍。
❌ 学生初版 The leader’s comments, which were made when he was presiding over the meeting, show that the economy is under pressure.
✅ 升级版 The leader’s comments, delivered during a party central committee meeting in Pyongyang, underscore the growing strains on the North Korean economy.
💡 效果
去掉 which were，直接用过去分词 delivered，句子更紧凑。这个技巧在雅思/高考作文中极其实用——比如写 “The plan, which was designed to reduce pollution,…” 可以秒变 “The plan, designed to reduce pollution,…”
✅ 模板： [名词], + [过去分词短语], + [完整的句子主干]
2. 非限定性定语从句（which插入式）——给句子加”旁白”
原文:
Pyongyang, which continues to claim zero cases of coronavirus, appears to have taken an ultra-cautious approach.
结构分析：
[专有名词], which + [完整从句], [主句谓语]。非限定性定语从句用逗号隔开，去掉不影响主句意思，但加上后能补充关键背景信息。这里 “which continues to claim zero cases” 解释了为什么平壤会采取超谨慎态度——不是因为别的原因，而是因为”他们坚称零病例”。
❌ 学生初版 North Korea said it has zero cases of coronavirus. Because of this, it does not want to accept foreign aid.
✅ 升级版 North Korea, which continues to claim zero coronavirus cases, has adopted an ultra-cautious approach toward foreign vaccine offers.
💡 效果 一句话包含了”立场陈述+行为描述”两层信息，而学生版需要两个句子才能表达。非限定性定语从句的”旁白”功能，是让你的议论文信息密度翻倍的最快方法。
✅ 模板： [国家/组织名], which [补充背景信息], [核心动作/状态]
3. 限定性定语从句（who/that）——精准界定”是什么人”
原文:
The people who are really going to suffer are the people who don’t have a political voice.
结构分析：
这是典型的”平行限定”结构——用两个 who 从句分别定义”谁”和”是哪类人”。限定性定语从句（没有逗号）的作用是界定，不是补充。去掉它，句子的意思就不完整了。
❌ 学生初版 Some people will suffer. They have no political voice.
✅ 升级版 The students who lack access to quality educational resources are the ones who face the greatest challenges in university admissions.
💡 效果
两个 who 从句形成排比，同时完成了”分类+判断”——先界定一群人，再描述他们的处境。这种结构在任何”讨论群体差异”的作文中都通用。
✅ 模板： The [群体] who [特征A] are the [群体] who [特征B]
4. 名词+同位语+who从句——专业级人物介绍
原文:
Peter Ward, a Seoul-based expert with the University of Vienna who tracks the North Korean economy, pointed to reports…
Rachel Lee, a former US government North Korea analyst who is now with 38 North at the Stimson Center, a Washington think-tank, said…
结构分析：
[人名], [身份/职务], [who从句], [谓语]
这三层叠加的结构堪称”人物介绍”的终极公式：
- 第1层：人名（给出焦点）
- 第2层：身份同位语（说明”他是谁”）
- 第3层：who从句（说明”他做什么/有什么特点”）
❌ 学生初版 Peter Ward is a Seoul-based expert and he studies the North Korean economy. He said prices have increased.
✅ 升级版 Dr. Li, a climate scientist at Peking University who has studied air pollution for more than a decade, warned that the situation is likely to worsen.
💡 效果 一口气交代清楚”是谁+做什么+为什么他的话有分量”——这是雅思写作中引用专家观点时的标准写法。
✅ 模板： [人名], [身份名], who [专业领域/具体成就], [谓语 + 观点]
5. 关系副词 (where/why/when) ——“隐性定语从句”
在FT原文中虽然没有显性出现，但朝鲜粮食危机报道的语境里隐藏着大量可以用 where 代替 in which 的场景。比如：
North Korea has cut itself off from the outside world… most cross-border trading activity has declined sharply.
可以用关系副词改写为：
✅ North Korea’s situation, where most cross-border trading has declined sharply, highlights the impact of prolonged isolation.
结构分析：
[地点/情景], where [完整句子], [主句]
where = in which，在描写”某个背景下的情况”时格外好用。
✅ 模板： [名词], where [完整句子], [主句]
📝 写作建议
学习定语从句，最重要的不是记住所有关系代词（who/whom/which/that/whose），而是掌握什么时候用什么样的从句：
| 场景 | 推荐结构 | 原因 |
|---|---|---|
| 给人物加背景 | 人名, 身份, who从句 | 信息密度+权威感 |
| 给事物加解释 | 名词, which从句 | 非限定，像旁白 |
| 定义某一类人 | The ... who... | 限定性，精准界定 |
| 压缩冗余 | 过去分词代替从句 | 从16词缩到8词 |
| 描写场景 | 名词, where从句 | 比 in which 更自然 |
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