# 英语高级 · 第 7 周 Day 3|比较倍数与占比句 > 系列:语种学习 / 英语 / 高级 · 每日学习|AI生成|2026-10-27|codebuddy **今天学什么** 昨天解决"一个数怎么动",今天解决"两个数怎么比"。这一步比昨天更容易出错,因为错误往往不影响语法,只影响事实:Spending on health is higher than education 读起来毫无障碍,但它在比较"支出"和"教育"两个不同类的东西。今天要练三种硬功夫:比较对象必须同类(than that of)、倍数不能有歧义(twice as many as 而非 twice more than)、比例要选对框架(account for 与 attributable to 说的不是一件事)。这三种句法是第 5 天 synthesis 的骨架——共识段靠"多个来源指向同一比例",分歧段靠"同一指标算出不同倍数"。学完你能对着同一张图表写出 15 句互不重复、且每句都能被数字验证的描述。 ## 一、今日任务 | 环节 | 时长 | 具体动作 | 产出 | | --- | --- | --- | --- | | 1. 选图 | 10 min | 选一张真实图表:必须同时含时间序列与至少两组分类对比;把坐标轴单位、基准年、是否名义值三件事先抄下来 | 图表参数 1 条 | | 2. 分类造句 | 30 min | 按四类各写:比较 4 句、倍数 3 句、比例 4 句、趋势 4 句;每句后标所用框架 | 15 句 | | 3. 数字对账 | 15 min | 逐句回图核对:差值、倍数、百分比是否算对;把算错的句子划掉重算,不修改数字去迁就句子 | 对账记录 | | 4. 改写升级 | 10 min | 挑 5 句最平的,各换一种框架重写(如把 more than 改成 twice as many as),比较哪版更准 | 5 组对照 | | 5. 串段 | 15 min | 用其中 6 句写 100 词,要求含 1 处让步(表面看是 A,按人均则是 B) | 100 词段落 | "至少 5 句含具体数字与比较"是硬门槛,不是建议。判断标准很简单:把句子单独拿给没看过图的人,他能不能复原出两个数?不能,就是没达标。 ## 二、核心词汇与搭配 | 词 / 短语 | 音标 · 词性 | 释义与高频搭配 | 例句与翻译 | 语域 | | --- | --- | --- | --- | --- | | commensurate | /kəˈmenʃərət/(≈克梅恩谢若特) adj. | 与……相称的;commensurate with, broadly commensurate | Pay rises were commensurate with productivity gains. 薪资涨幅与生产率提升相称。 | 学术 / 商务 | | per capita | /pə ˈkæpɪtə/ adj./adv. | 人均的;per capita income, on a per capita basis | On a per capita basis, the gap is far wider. 按人均计算,差距要大得多。 | 学术 / 媒体 | | exceed | /ɪkˈsiːd/(≈伊克西德) v. | 超过(数量或限度);exceed the threshold, exceed expectations | Emissions exceeded the cap in eleven of twelve months. 十二个月里有十一个月排放超过上限。 | 学术 / 商务 | | lag | /læɡ/(≈莱格) v. | 落后于;lag behind by, lag the benchmark | Wages lag behind prices by roughly two years. 工资落后物价约两年。 | 媒体 / 学术 | | discrepancy | /dɪˈskrepənsi/(≈迪斯克雷珀恩西) n. | 不一致、差额;a discrepancy between X and Y, explain the discrepancy | The discrepancy between the two series is 1.4 points. 两组序列的差额是 1.4 个百分点。 | 学术 | | aggregate | /ˈæɡrɪɡət/(≈艾格里厄特) adj./n. | 总量的;at the aggregate level, aggregate demand | At the aggregate level, the decline looks modest. 从总量看,下滑似乎温和。 | 学术 / 商务 | | nominal | /ˈnɒmɪnl/(≈诺米恩尔) adj. | 名义的(未扣通胀);in nominal terms, nominal growth | Nominal growth of 6% becomes 1% once inflation is stripped out. 名义增长 6%,扣除通胀后只剩 1%。 | 学术 / 商务 | | disparity | /dɪˈspærəti/(≈迪斯派若提) n. | 差距、悬殊;a widening disparity, regional disparities | Regional disparities widened over the period. 期间地区差距扩大。 | 学术 / 媒体 | | relative to | /ˈrelətɪv tu/ prep. | 相对于;relative to the baseline, relative to peers | Relative to 2015, output has fallen by a fifth. 相对于 2015 年,产出下降了五分之一。 | 学术 | | proportion | /prəˈpɔːʃn/(≈普若保希恩) n. | 比例、份额;a high proportion of, in proportion to | A rising proportion of claims are settled online. 越来越大的理赔比例在线上结案。 | 学术 / 通用 | 这十个词里,nominal 与 aggregate 是"防错词":很多看似惊人的比较,一旦改成实际值或人均值就消失了。写作时先问一句"这是名义还是实际、是总量还是人均",比事后改句有效得多。 ## 三、语言点:比较的不对称与倍数歧义 英文比较句有一条硬规则:than 前后必须是同类事物。中文说"中国的人口比日本多",省略了第二个"人口",读者自动补齐;英文不做这个补齐,写成 China's population is larger than Japan,字面上比较的是"人口"和"日本",语法通过,逻辑断裂。倍数则有另一类麻烦:twice more than 在严格逻辑上是"多两倍"即三倍,但大量母语者用它表示"两倍",这种歧义在正式文本里不可接受。 **规则** 1. 比较对象同类:用 that of / those of 指代前文的单复数名词,或重复中心词。Spending on health is higher than that on education. 2. 倍数用 as…as:twice as many as、three times as likely as、four times the rate of。避免 twice more than、three times more than。 3. 差值用 by:exceed X by 6 points、lag behind by two years、narrow the gap by 3 points。by 后永远是差值,不是新水平。 4. 比例分三种框架:account for / make up(构成);attributable to(归因);the share of X in Y(份额)。三者不能互换,因为回答的问题不同。 5. 前提必须交代:in nominal terms、on a per capita basis、at constant prices。缺了前提,比较就没有意义,这也是最容易被审稿人抓住的地方。 这五条规则背后其实是同一个习惯:写比较句之前,先把被比较的两个东西并排写在纸上,看它们是不是同一个量。是同一个量,才配用 as…as、higher than、twice;不是,就先补成同一个量,或者干脆换一种写法(改成占比、差值、人均)。很多学生觉得这一步多余,实际上它省下的时间最多——一句话写完再回头改结构,往往要拆掉半段;动笔前花十秒对齐标签,句子一次就成型。 | 弱(不对称或歧义) | 强(可比) | 差别在哪 | | --- | --- | --- | | Health spending is higher than education. | Health spending is higher than spending on education. | 前者拿"支出"比"教育",后者两个都是支出。 | | The drug is twice more effective than the old one. | The drug is twice as effective as the old one. | 前者可被读成三倍,正式文本必须消除歧义。 | | Our share grew 30%. | Our share rose 3 points, to 30%. | 份额的变化用百分点,用百分比会把"从 27% 到 30%"说成"增长 30%"。 | **常见误用** 1. 百分比与百分点混用:share 从 20% 升到 25%,是 rose 5 percentage points,不是 rose 5%。这是数据写作里最高频的硬错。 2. 倍数与基数错配:~~three times higher than 20~~。倍数只能修饰可比的整体,不能直接乘在一个孤立数字上。 3. 缺基准年:~~Emissions fell 18%~~,读者不知道相对哪一年。补上 since 2019 或 from the 2019 peak。 4. 用 compare to 替代 compared with 做数据对比。传统上 compare to 用于类比(把 A 比作 B),数据并列用 compared with;正式文本遵循这条能避免歧义。 为什么正式文本对这类歧义几乎零容忍?因为读者不是来解谜的。一份政策备忘录如果写"覆盖率提高到三倍",决策者无法判断预算该按两倍还是三倍做;一篇论文如果写"share grew 30%",审稿人会认为作者没分清百分点。歧义造成的不是美观问题,而是别人无法据你写的句子做决定。反过来,只要基准、差值、倍数三件事都写清楚,句子哪怕朴素,也会被认为专业——这正是 C1 与 B2 在数据写作上的真实分界。 ## 四、句型与范例 | 句式 | 功能 | 例句与翻译 | | --- | --- | --- | | X is … than that of Y | 单数同类比较 | The median wage in the capital is 22% higher than that of the second city. 首都的中位工资比第二大城市高 22%。 | | X are … than those in Y | 复数同类比较 | Rents in the north are lower than those in the south by a fifth. 北部租金比南部低五分之一。 | | twice as many … as | 倍数(可数) | The region now has twice as many clinics as it did in 2015. 该地区诊所数量是 2015 年的两倍。 | | three times the rate of | 倍数(比率) | Unemployment among graduates is three times the rate of the general workforce. 毕业生失业率是一般劳动力的三倍。 | | X accounts for N% of Y | 构成占比 | Transport accounts for 29% of household emissions. 交通占家庭排放的 29%。 | | X rose N percentage points to M% | 份额变化 | The share of renewables rose 6 percentage points to 41%. 可再生能源份额上升 6 个百分点至 41%。 | | X is attributable to Y | 归因占比 | Roughly a third of the increase is attributable to population ageing. 约三分之一的增长可归因于人口老化。 | | X exceeds Y by N | 差值 | Licensed capacity exceeds actual output by 18%. 许可产能高出实际产出 18%。 | | relative to X, Y … | 设定参照 | Relative to 2019, freight volumes are still 7% below pre-pandemic levels. 相对 2019 年,货运量仍比疫情前低 7%。 | | on a per capita basis, the picture reverses | 换基准后反转 | On a per capita basis, the picture reverses: the poorer region uses more water. 按人均算,结论反转:较穷地区用水更多。 | 这十句里有三句值得单独背下来当"检查器":`X accounts for N% of Y` 用来确认自己说的是构成而不是因果;`rose N percentage points to M%` 用来强制区分百分点与百分比;`relative to X, Y…` 用来逼自己交代基准。写作时句子写完,默念一遍这三个框架,缺哪个补哪个。 写 15 句时按这个顺序推进:先一句总量(aggregate),再一句人均(per capita),然后一句差距(by),最后一句占比(account for)。四句一组,读者会自然跟着你的基准走,而不是被数字牵着走。 ## 五、练习 **A 词汇与搭配(7 题)** 1. 填空(nominal / aggregate):______ demand fell 3%, but ______ wages rose 5%, so real wages fell. 2. 改错:The share rose 5% to 25%. 3. 搭配填空:Pay is broadly commensurate ______ experience. 4. 选词(discrepancy / disparity):The ______ between the two surveys is 2 points; the ______ between regions is 30 points. 5. 改错:Costs lag the industry average for 12%. 6. 用 per capita 改写:The province uses 480 cubic metres of water for each resident. 7. 语域判断:relative to 与 compared with 在下面哪句不能互换,为什么?a) Relative to 2019, sales are flat. b) Compared with her sister, she is tall. **B 句法、改写与压缩(6 题)** 1. 改不对称比较:The population of the capital is larger than the coastal cities. 2. 消歧义:The new system is three times faster than the old one. 3. 合并并保留基准:Emissions fell 18%. The baseline is 2019. 4. 改成百分点表述:Our market share grew from 18% to 23%, a rise of 28%. 5. 压缩到 22 词内:When you look at the figures on a per capita basis, the difference between the two regions is much larger than the headline numbers suggest. 6. 把两句改成一句含让步:In total, the north spends more. Per household, the south spends more. **C 输出(2 题)** 1. 15 句图表描述:比较 4、倍数 3、比例 4、趋势 4;至少 5 句同时含数字与比较;每句标注框架与基准。 2. 100 词段落,含 6 句、1 处基准反转(总量与人均、名义与实际、绝对数与占比任选一组)。段末一句必须指出"哪个基准更合适,为什么"。 ## 六、参考答案 **A** 1. aggregate;nominal。总量下降与名义工资上升可以并存,实际工资的下降正是两者相减的结果。 2. The share rose 5 percentage points to 25%。份额变化用百分点,用百分比会把"上升五分之一"说成"上升 5%"。 3. with。commensurate 的固定介词是 with,表示"与……相称"。 4. discrepancy;disparity。前者指两组数字对不上,后者指两个群体之间的实质差距。 5. Costs lag the industry average by 12%。lag 后接差值用 by,for 会被读成持续时间。 6. The province uses 480 cubic metres of water per capita. 或 on a per capita basis, water use is 480 cubic metres. 前者更简洁。 7. a 句可以互换,b 句不行。b 是类比(把她比作她姐姐),只能用 compare to;数据并列用 compared with 或 relative to。 **B** 1. The population of the capital is larger than that of the coastal cities. 加 that of 后,两边都是人口。 2. The new system is three times as fast as the old one. 用 as…as 消除"三倍"与"快两倍"的歧义。 3. Emissions have fallen 18% since 2019. 用 since 把基准压进介词短语,比另起一句干净。 4. Our market share rose 5 percentage points to 23%. 同时给出差值与终点,读者不用自己减。 5. Per capita, the regional gap is far wider than the headline figures suggest. 保留对比与判断,删掉铺垫。 6. Although the north spends more in total, the south spends more per household. 让步句把两个基准放进同一句,谁也不能单独成立。 **C 评分维度** | 维度 | 合格 | 优秀 | | --- | --- | --- | | 四类齐全 | 比较 4、倍数 3、比例 4、趋势 4 | 每类内部框架不重复 | | 数字可验证 | ≥5 句含数字与比较,回图可复算 | 差值、倍数、百分点全部算对 | | 基准交代 | 至少 3 句写明基准 | 名义/实际、总量/人均均有交代 | | 段落判断 | 指出更合适的基准并给理由 | 理由指向决策用途,而非个人偏好 | 参考句(结构示范,数字请换成你图上的真实值):Licensed capacity exceeds output by 18%, a gap that has widened for three years. Transport accounts for 29% of household emissions, twice the share recorded in 2015. On a per capita basis the ranking reverses: the lower-income province emits 40% more per person. That reversal, not the headline total, is what a national target would have to address. ## 七、今日输出与自查 | 自查项 | 合格线 | 我的结果 | | --- | --- | --- | | 数量与配比 | 15 句,四类配比 4/3/4/4 | | | 数字对账 | 每句可回图复算,错句已重算而非改数 | | | 同类比较 | than 前后对象同类,无 than education 类错误 | | | 倍数 | 全部用 as…as 或 the rate of,无 more than | | | 基准 | 至少 3 句交代名义/实际或总量/人均 | | 产出文件:`第07周/Day03_十五句图表描述.md`,含 15 句、框架标注、对账记录、100 词段落。对账记录里算错的那些,抄进错句本——它们比生词更值得复习。 ## 八、明日预告 Day 4 换到耳朵:听 10 分钟数据类演讲,记 5 个数字及其意义,做 2 分钟口头复述。书面数据句允许你反复核对,口语只给你一次机会,所以明天练的是"数字的顺序"——先给锚点,再给含义。请选一段带图表的讲座或访谈音频,准备好纸笔,第一遍不看字幕。