En el inglés académico y profesional C1 no basta con “leer” una gráfica. Tienes que interpretar los datos: destacar patrones, compararlos y explicar qué significan usando lenguaje preciso y matizado.
1) Mapa rápido de data commentary
Data commentary típico:
1) Introducir gráfico · 2) Describir patrón general · 3) Comentar detalles clave
4) Relacionar con tu argumento (what it suggests / shows).
Tu objetivo no es decir cada número, sino hacer visible el mensaje principal de los datos para tu lector u oyente.
Antes de escribir, pregúntate: “Si tuviera que explicar este gráfico en 2–3 frases, ¿qué diría?”. Eso es el corazón del data commentary.
2) Tipos de gráfico y verbos básicos
Necesitas vocabulario para nombrar el tipo de visual y para describir cambios o cantidades.
| Categoría | Vocabulario clave | Ejemplos |
|---|---|---|
| Tipos de gráfico | line graph (gráfico de líneas) bar chart (gráfico de barras) pie chart (gráfico circular) table (tabla) scatter plot (diagrama de dispersión) | Figure 1 shows a line graph of monthly sales from January to June. Table 2 presents the survey results by age group. |
| Verbos para “subir/bajar” | rise, increase, grow, go up (subir) fall, decrease, decline, drop (bajar) double, triple (multiplicarse) | Sales increased steadily between 2018 and 2020. Unemployment dropped sharply in the following year. |
| Verbos para estabilidad y cambio irregular | remain stable / remain constant level off (estabilizarse) fluctuate (fluctuar) | The figures remained relatively stable after 2019. Prices fluctuated throughout the period. |
Evita “it goes up a lot”. Mejor: it rises sharply / it increases significantly.
3) Describir tendencias: intensidad, velocidad y adverbios
Para sonar C1 necesitas combinar verbo + adverbio (o adjetivo) y, si es posible, dar una idea aproximada de cantidad.
| Intensidad / ritmo | Adverbios / adjetivos | Ejemplos C1 |
|---|---|---|
| Subida fuerte | sharply, dramatically, significantly, rapidly, steep a sharp / steep increase | There was a sharp increase in mobile use between 2015 and 2017. Sales rose dramatically in the first quarter. |
| Subida suave | gradually, slowly, steadily, slight a gradual / slight rise | Internet access grew gradually over the ten-year period. The number of users increased steadily. |
| Bajada fuerte | sharply, dramatically, significantly, steep a sharp / significant drop | Attendance fell sharply after the pandemic began. |
| Bajada suave | slightly, gradually, slowly a slight decline | The error rate decreased slightly in the second phase. |
| Estabilidad | remain constant / stable, show little change, stay at around X | Figures remained more or less constant at around 50%. |
Original básico:
The number goes up a lot from 2010 to 2015.
Versión C1:
Between 2010 and 2015, the number of users increased significantly, rising from around 20% to almost 60%.
4) Comparar grupos y categorías
La mayoría de los comentarios sobre datos implican comparar: grupos, periodos o categorías.
| Función | Expresiones | Ejemplos |
|---|---|---|
| Más / menos | higher / lower than more / less X than a greater / smaller proportion | Mobile use is significantly higher among younger adults. A greater proportion of women than men reported working from home. |
| Similaridad | similar to, roughly the same as, comparable to in both groups, in all three countries | Results for Spain and Italy are roughly the same. In both groups, satisfaction levels remain high. |
| Contraste | whereas, while, by contrast, unlike in contrast to, on the other hand | While younger users prefer mobile devices, older respondents tend to use laptops. By contrast, offline sales remained relatively stable. |
| Superlativo | the highest / lowest, the most / least X accounts for the largest share | Online advertising accounts for the largest share of the budget. |
Piensa en parejas de elementos que quieres comparar: país A vs país B, antes vs después, grupo control vs experimental, etc.
5) Aproximar, ser cauteloso e interpretar
En data commentary C1 no siempre conoces el número exacto ni puedes afirmar causas con seguridad. Necesitas aproximar y usar hedging.
| Función | Expresiones típicas | Ejemplo |
|---|---|---|
| Aproximar cantidades | about, around, roughly, approximately just over / just under, nearly, almost | Just over 40% of respondents reported working remotely at least once a week. Nearly half of the participants completed the course. |
| Interpretar con cautela | seems to, appears to, tends to may suggest, might indicate, could imply | The increase in sales may suggest that the new marketing strategy is effective. The data seem to indicate a growing preference for online learning. |
| Relacionar con tu argumento | this suggests that…, this supports the idea that… this is consistent with…, this contrasts with… | This pattern is consistent with previous studies on digital habits. These results support the idea that flexibility improves job satisfaction. |
Comentario completo C1:
As shown in Figure 2, the proportion of remote workers increased from around 10% in 2018 to almost 40% in 2022. This substantial rise suggests that remote work has become a mainstream option rather than an exception.
6) Errores frecuentes al comentar datos
- Leer la tabla número por número en lugar de sintetizar patrones.
- Usar tiempo presente simple básico para todo: “it goes up… it goes down…” sin variación.
- Hacer afirmaciones causales fuertes a partir de correlaciones: “X causes Y” sin evidencia.
- No indicar la fuente o figura (Figure 1, Table 2).
- Mezclar opinión pura (“I think this is good”) con descripción de datos sin separar claramente comentario de interpretación.
Débil:
In this graph, it goes up from 10 to 50 and then it goes down to 30. I think this is bad.
Mejor C1:
Figure 1 shows that the number of users rose from about 10 to 50 between 2015 and 2019, before falling back to around 30 in 2020. This pattern suggests that the initial growth was not sustainable in the long term.
Piensa siempre en tres niveles: describir (qué pasa) → comparar (con qué) → interpretar (qué significa).
7) Mini-práctica
- Completa con un verbo y un adverbio adecuados:
a) Between 2010 and 2015, the number of users ________ ________, from 5% to 30%.
b) After 2018, unemployment ________ ________ and stayed at around 4%.
c) Sales ________ ________ during the first half of the year, with several ups and downs. - Reescribe estas frases básicas en versión C1:
a) The line goes up a lot and then goes down a little.
b) Group A is bigger than Group B.
c) The numbers are almost the same in 2019 and 2020. - Imagina un gráfico de barras con tres columnas: A (20%), B (40%), C (40%). Escribe un breve comentario (2–3 frases) que:
• Compare A con B y C.
• Use al menos una expresión de aproximación (about, roughly, nearly…). - Escribe un comentario de datos (3–4 frases) para este escenario imaginario:
– Una línea que sube gradualmente de 2015 a 2019.
– Una caída fuerte en 2020.
– Estabilidad moderada en 2021–2022.
Usa expresiones como gradually, sharply, remain stable, this suggests… - (Producción guiada) Elige uno de estos temas imaginarios y escribe un mini data commentary de 5–6 frases:
a) Uso diario de una app de idiomas en diferentes grupos de edad.
b) Porcentaje de empleados que trabajan desde casa antes y después de 2020.
c) Evolución del tiempo de pantalla en días laborales vs fines de semana.
Incluye:
– Introducción del gráfico/tabla (Figure / Table).
– Tendencia general.
– Una comparación clave.
– Una interpretación con cautela (may suggest / seems to indicate…).
Respuestas ejemplo (orientativas):
1) a) increased sharply / rose significantly
b) fell slightly / decreased gradually
c) fluctuated considerably / varied noticeably
2) a) The line rises sharply and then falls slightly.
b) The proportion in Group A is considerably higher than in Group B.
c) Figures for 2019 and 2020 are roughly the same.
3) (posible)
As shown in the bar chart, Category A accounts for about 20% of responses, whereas Categories B and C each represent roughly 40%. In other words, B and C are twice as common as A.
4) (posible)
The line graph shows that the number of users increased gradually from 2015 to 2019. In 2020, however, there was a sharp decline. After this drop, figures remained relatively stable over the next two years. This pattern may suggest that the market reached a saturation point after the initial growth period.
8) Próximo paso
Continúa con Estrategias de lectura densa (skimming/scanning/close reading), donde verás cómo adaptar tu forma de leer (rápida o detallada) según el tipo de texto académico y tu objetivo de comprensión.