IELTS Line Chart 要拿 6–6.5，真正需要會用的大約只有 8個核心副詞；另外4個看得懂即可。
一張圖先搞懂：副詞其實只有兩種功能
① 變化「有多大」？— Amount
小幅 中等 大幅 極大幅 ▁▂ ▁▃ ▁▆ ▁█ slightly moderately significantly dramatically marginally considerably substantially
| 程度 | Adverb | 中文 |
|---|---|---|
| 很小 | slightly | 輕微地、小幅地 |
| 很小 | marginally | 極小幅地 |
| 中等 | moderately | 適度地、中等幅度地 |
| 很大 | significantly | 顯著地 |
| 很大 | considerably | 相當大幅度地 |
| 很大 | substantially | 大幅地 |
| 非常大 | dramatically | 劇烈地、大幅地 |
例句
Sales increased slightly from 50 to 55.
銷售額從50小幅上升至55。
Sales increased significantly from 50 to 85.
銷售額從50顯著上升至85。
Sales rose dramatically from 50 to 120.
銷售額從50劇烈上升至120。
② 線「怎麼移動」？— Speed and pattern
緩慢 穩定 快速／陡峭 不規則 ▁▁▂▂▃ ▁▂▃▄▅ ▁▁▂▇█ ▂▇▃▆▁▅ gradually steadily rapidly / sharply erratically
| Adverb | 真正意思 | 圖形感覺 |
|---|---|---|
| gradually | 緩慢、逐漸地 | 慢慢上升或下降 |
| steadily | 穩定、持續地 | 平順地朝同一方向 |
| rapidly | 快速地 | 短時間內快速改變 |
| sharply | 急劇、陡峭地 | 線條突然變陡 |
| erratically | 不規則地 | 忽高忽低、沒有規律 |
最容易搞混的三組
1. significantly ≠ rapidly
significantly
表示變化幅度很大，不一定很快。
2010 2020 ▁────▂────▃────▄────▆
The figure increased significantly over the ten-year period.
十年間增加很多，但可能是慢慢增加。
rapidly
表示變化速度很快，重點是時間短。
2010 2011 ▁──────█
The figure increased rapidly in 2011.
2. gradually ≠ slightly
gradually
表示變化慢慢發生，最後可能增加很多。
▁──▂──▃──▄──▅──▆──█
The population increased gradually from 1 million to 5 million.
雖然最後增加很多，但過程很慢。
slightly
表示最後的變化量很小。
▁────────▂
The population increased slightly from 1 million to 1.1 million.
3. steadily ≠ slowly
steadily 是穩定，不一定慢。
穩定上升： ▁▂▃▄▅▆▇ 不穩定上升： ▁▅▂▆▄▇█
Sales rose steadily throughout the period.
代表銷售額持續、平穩上升，中間沒有明顯下跌。
單一 Line Chart 的全部常見變化
1. 小幅上升
▁──────▂
The figure rose slightly from 50 to 55.
2. 逐漸上升
▁──▂──▃──▄──▅
The figure increased gradually over the period.
3. 穩定上升
▁▂▃▄▅▆▇
The figure grew steadily between 2010 and 2015.
4. 急劇上升
▁────▂──█
The figure rose sharply to 100.
5. 大幅上升
▁────────█
The figure increased significantly from 20 to 90.
6. 小幅下降
▇──────▆
The figure fell slightly from 80 to 75.
7. 逐漸下降
▇──▆──▅──▄──▃
The figure declined gradually over the period.
8. 急劇下降
█──▇────▁
The figure fell sharply to 20.
9. 保持穩定
────────────
The figure remained stable at around 50.
或：
The figure remained unchanged at 50.
10. 波動
▂──▆──▃──▇──▄
The figure fluctuated between 40 and 70.
如果波動非常不規則：
The figure fluctuated erratically throughout the period.
11. 上升後持平
▁──▃──▆────────
The figure increased to 80 and then levelled off.
12. 到達高峰
▁──▃──▆──█──▆
The figure peaked at 100 in 2018.
注意：不能寫 peaked to 100。
正確是：
peaked at 100
13. 降到最低點
█──▆──▃──▁──▃
The figure reached a low of 20 in 2018.
也可以寫：
The figure bottomed out at 20.
形容詞和副詞的轉換
這是 Task 1 最重要的兩種句型。
動詞＋副詞
Sales increased significantly.
| Verb | Adverb |
|---|---|
| increased | slightly |
| rose | steadily |
| grew | gradually |
| fell | sharply |
| declined | dramatically |
形容詞＋名詞
There was a significant increase in sales.
| Adjective | Noun |
|---|---|
| a slight | increase |
| a steady | rise |
| a gradual | growth |
| a sharp | fall |
| a dramatic | decline |
對照記憶
| Verb＋adverb | Adjective＋noun |
|---|---|
| rose slightly | a slight rise |
| increased gradually | a gradual increase |
| grew steadily | steady growth |
| fell sharply | a sharp fall |
| declined dramatically | a dramatic decline |
| increased significantly | a significant increase |
你只需要背這8個
描述幅度
- slightly：小幅
- significantly：顯著、大幅
- dramatically：劇烈、非常大幅
描述方式
- gradually：逐漸
- steadily：穩定持續
- rapidly：快速
- sharply：急劇、陡峭
- erratically：不規則
其他四個只要看懂：
marginally、moderately、considerably、substantially
考試最安全的選擇法
看到線後問三個問題：
1. 上升、下降還是波動？ ↓ 2. 變化量小還是大？ slightly / significantly / dramatically ↓ 3. 過程慢、穩定還是突然？ gradually / steadily / sharply
例如，線在五年內平順地從20上升到80：
The figure increased steadily from 20 to 80.
線在一年內從20突然升到80：
The figure rose sharply from 20 to 80.
線只從20升到22：
The figure increased slightly from 20 to 22.
Band 6–6.5 完全不需要每一句換一個新副詞。 一篇使用兩到四個準確的副詞，就已經比塞滿十幾個卻用錯更安全。
對，你抓得很準，這四個確實要補進來。尤其 considerably 和 substantially 在 IELTS Task 1 很常見。
修正版：Line Chart 常用副詞共 12 個
A. 描述「變化幅度」有多大
| 程度 | 副詞 | 中文 | 例句 |
|---|---|---|---|
| 很小 | slightly | 小幅地 | Sales rose slightly. |
| 極小 | marginally | 極小幅地 | The figure increased marginally. |
| 中等 | moderately | 中等幅度地 | Prices grew moderately. |
| 大幅 | significantly | 顯著地 | Sales increased significantly. |
| 大幅 | considerably | 相當大幅地 | The number fell considerably. |
| 大幅 | substantially | 大幅、實質地 | Profits rose substantially. |
| 極大幅 | dramatically | 劇烈地 | The rate declined dramatically. |
幅度圖示
marginally / slightly 20 ───── 23 小幅變化 moderately 20 ───── 40 中度變化 significantly / considerably / substantially 20 ───── 80 大幅變化 dramatically 20 ───── 120 極大或劇烈變化
B. 描述「變化速度或方式」
| 副詞 | 中文 | 重點 |
|---|---|---|
| gradually | 逐漸地 | 變化慢慢發生 |
| steadily | 穩定持續地 | 線平順、方向一致 |
| consistently | 一貫、持續一致地 | 每個時期都呈現相同方向或表現 |
| quickly | 快速地 | 日常、直接的「快」 |
| rapidly | 迅速地 | 比 quickly 正式，Task 1較常用 |
| sharply | 急劇地 | 短時間內形成陡峭變化 |
| erratically | 不規則地 | 忽高忽低、沒有穩定規律 |
等等，這樣總數不是12，而是：
- 幅度副詞：7個
- 速度／方式副詞：7個
合計 14個常用副詞。
四個新增字的差異
1. quickly 與 rapidly
兩個都是「快速地」。
10 ── 15 ───────── 80 短時間快速上升
The figure increased quickly.
文法正確，但比較口語。
The figure increased rapidly.
較正式，更適合 IELTS Task 1。
因此考試優先使用：
rapidly
不過，quickly 並沒有錯。
2. consistently 與 steadily
這兩個很接近，但焦點不同。
steadily：線條穩定、平順地移動
20 ─ 30 ─ 40 ─ 50 ─ 60
Sales increased steadily between 2010 and 2015.
強調沒有明顯波動，線持續平順上升。
consistently：每個時期都維持一致表現
2010 2011 2012 2013 70 72 71 73 始終維持較高水準
Company A performed consistently better than Company B.
A公司在各時期都持續優於B公司。
因此，在單一線條持續上升時，通常：
rose steadily 更自然。
而 consistently 常用於：
remained consistently high
consistently exceeded
performed consistently well
例如：
The unemployment rate remained consistently low throughout the period.
3. considerably
意思是：
相當大幅地、明顯地
30 ───────── 85
The number of visitors increased considerably from 30,000 to 85,000.
它和 significantly 很接近。
- significantly：顯著地
- considerably：相當大幅地
在 Task 1 中通常可以互換：
increased significantly
increased considerably
4. substantially
意思是：
大幅地、實質地
20 ───────── 90
Household spending rose substantially during the period.
它也和 significantly、considerably 接近，但語氣比較正式。
| 副詞 | 大致中文 | IELTS感覺 |
|---|---|---|
| significantly | 顯著地 | 最常用、最安全 |
| considerably | 相當大幅地 | 自然、正式 |
| substantially | 大幅且實質地 | 正式 |
| dramatically | 劇烈地 | 程度最強，不要濫用 |
完整14個副詞整理
幅度大小
小 marginally slightly 中 moderately 大 significantly considerably substantially 非常大 dramatically
速度與方式
慢慢地 gradually 穩定地 steadily 持續一致地 consistently 快速地 quickly rapidly 急劇地 sharply 不規則地 erratically
最重要：副詞可以描述不同面向
某些副詞可以一起使用，因為一個描述「幅度」，另一個描述「速度」。
例如：
Sales increased gradually but significantly from 20 to 80.
意思是：
-
gradually：上升過程很慢 -
significantly：最後總增幅很大
又例如：
The figure fell rapidly and substantially in 2020.
-
rapidly：下降得快 -
substantially：下降幅度大
但考試時不要為了炫技一口氣塞兩三個副詞。最安全的寫法通常是：
The figure rose steadily from 20 to 70.
或：
The figure increased considerably, reaching 70 in 2020.
你的 Band 6–6.5 核心只要熟練這10個就夠：
slightly, significantly, considerably, substantially, dramatically, gradually, steadily, consistently, rapidly, sharply。
