Task 1 Academic — Line Graph
Trend verbs · tense · overview rule · comparison structures
Topic & Why It Matters
The line graph is the most common Task 1 Academic question type. You are given a graph that shows how one or more variables change over time, and you must describe and compare the key trends in at least 150 words in 20 minutes. The graph can be single-line (one variable over time), multi-line (two or more variables tracked together — the most common version), or partly projected (a dashed segment showing forecast data for future years).
Most marks are lost in two places. The first is the overview: examiners treat a missing or buried overview as a Task Achievement failure regardless of how fluent the rest of the response is. The second is selection: candidates either copy the prompt and run out of words for the body, or list every data point without comparing anything. A response that selects smartly, writes an explicit overview as paragraph two, and uses precise trend verbs will score Band 7 or above even if the grammar is not perfect.
The four scoring criteria (Task Achievement, Coherence & Cohesion, Lexical Resource, Grammatical Range & Accuracy) are averaged. For the line graph specifically, the highest-leverage criteria are Task Achievement (the overview rule) and Lexical Resource (precise trend vocabulary). This chapter is organised to maximise both.
Knowledge Points
Ten facts about the line-graph task. Each includes a short worked example so you can see the rule in action — read them slowly.
Reading the Graph in 60 Seconds
Do this before you write a single word. Sixty seconds of planning saves four minutes of structural rewriting and prevents almost every Task Achievement failure.
- 1. Read the title and legendIdentify the variables (what is measured), the unit (%, millions, $), the locations or categories, and the time frame. These four items will form your introduction.
- 2. Say the y-axis unit out loudPercent? Millions? Dollars? Saying it aloud blocks the common mistake of treating 'millions' as raw counts. Misreading the unit corrupts every figure in your essay.
- 3. Find the highest and lowest values on the whole graphThese two values almost always belong in the overview or topic sentences. Note the year as well as the figure — they pair together in any precise sentence.
- 4. Group the lines by shape, not by nameSort lines into buckets: rising, falling, flat, or fluctuating. Lines that share a shape become one body paragraph. This decides your structure before you write a word.
- 5. Write three pencil notes(a) Overall direction in one phrase. (b) The most important contrast or outlier. (c) One comparison you intend to make in the body. These three notes become your overview paragraph almost verbatim.
Structure Template
Four paragraphs, roughly 160 words total. Word counts are targets, not hard limits. Each row shows what the paragraph does and a sample opening line taken from the model answer below.
| Paragraph | Target | What to Write |
|---|---|---|
| Paragraph 1 — Introduction | 25–35 words | Paraphrase the question. Name the variables (what is measured), the unit (%, millions, $), and the time frame. Do NOT copy the prompt verbatim — use synonyms and restructure the sentence. e.g. The line graph illustrates the proportion of the population who accessed the internet in three countries — South Korea, Brazil, and Nigeria — across a twenty-year period from 2000 to 2020. |
| Paragraph 2 — Overview | 30–45 words | State the two or three most important trends visible across the whole graph. No specific figures here. Use language like 'Overall, …' or 'In general, …'. This is the most important paragraph for Task Achievement. e.g. Overall, internet adoption rose in all three countries throughout the period, with South Korea consistently in the lead and Nigeria the lowest, though the gap between them narrowed by 2020. |
| Paragraph 3 — Body A | 45–60 words | Describe one group of data in detail (e.g., the lines that rose). Use specific figures, dates, and precise trend vocabulary. Compare lines within the group where relevant. e.g. South Korea began with the highest proportion, at approximately 44%, and climbed steadily to reach 96% by 2020 — the only country to approach near-universal access. |
| Paragraph 4 — Body B | 40–55 words | Describe the remaining data (e.g., the line that fell or behaved differently). End with a comparative or contrastive statement that links back to the overview. e.g. Nigeria's figures were considerably lower throughout, rising sharply from a negligible 0.1% in 2000 to 55% by 2020, a dramatic increase despite the very low starting point. |
Vocabulary & Grammar Toolkit
Organised by function. Aim to use one expression from each category in your response — range matters more than rarity. Memorise the noun forms (third group): they enable nominalisation, a Band 7+ grammar feature most candidates skip.
| Expression | Usage Note |
|---|---|
| rose / increased / grew | Safe, all-purpose upward movement |
| fell / declined / decreased / dropped | Safe, all-purpose downward movement |
| climbed | Steady upward movement, often used in body paragraphs |
| recovered | Rose after a period of decline |
| Expression | Usage Note |
|---|---|
| surged / soared / rocketed | Rapid, dramatic rise — use only for steep slopes |
| plummeted / plunged | Rapid, dramatic fall — reserve for sharp drops |
| dipped | Brief, minor fall before recovering — not a long decline |
| Expression | Usage Note |
|---|---|
| a rise / an increase / a growth in [X] | Use to turn a verb sentence into a noun phrase — a Band 7+ feature |
| a fall / a decline / a drop in [X] | Noun form of the downward verbs |
| a surge / a plunge in [X] | Noun forms of dramatic movement |
| a fluctuation in [X] | Use for irregular up-and-down motion |
| Expression | Usage Note |
|---|---|
| peaked at [value] in [year] | Reached the highest point at a specific value |
| reached a peak of [value] | Noun-phrase variant of 'peaked at' |
| bottomed out at [value] | Reached the lowest point |
| hit a low of [value] | Alternative for the lowest point |
| Expression | Usage Note |
|---|---|
| levelled off / plateaued | Flattened after a period of change |
| remained stable / stayed constant | Little or no change — only use for genuinely flat lines |
| held steady at [value] | Stayed at a specific figure |
| stagnated | Stayed flat after expected growth — implies an underperforming trend |
| Expression | Usage Note |
|---|---|
| sharply / steeply / rapidly | Fast and large change in a short time |
| gradually / steadily | Slow, consistent change |
| suddenly / abruptly | Change at a single point — use when there is a clear jump |
| Expression | Usage Note |
|---|---|
| slightly / marginally | Small change |
| dramatically / significantly / considerably | Large change in degree (not necessarily speed) |
| negligibly | Almost no change — paired well with 'negligible' as an adjective |
| Expression | Usage Note |
|---|---|
| by [year] | Arrival at a value at a specific point: 'had reached 74% by 2020' |
| from [year] onwards | Continuous change starting at a point |
| between [year] and [year] | Closed time window — use when comparing two end points |
| over the period / over the twenty-year period | Refers to the whole span — avoids repeating dates |
| throughout (the period) | Continuously across the whole time frame |
| Expression | Usage Note |
|---|---|
| while / whereas | Contrast two simultaneous trends in one sentence |
| in contrast / by contrast | Open a sentence with an opposing trend |
| similarly / likewise | Introduce a parallel trend |
| [X] was [number] percentage points higher than [Y] | Precise comparison between two percentages |
| more than doubled / tripled / halved | Powerful ratio comparison — only when the data supports it |
| Expression | Usage Note |
|---|---|
| approximately / roughly / around | Qualify a value read from a gridline |
| just over / just under | Tighter approximation — value sits slightly above or below a label |
| almost / nearly | Close to but not at a round figure |
| Expression | Usage Note |
|---|---|
| is projected to reach [value] by [year] | Standard formal verb for dashed projection lines |
| is expected to / is forecast to | Alternatives to 'is projected to' — all neutral and reportive |
| will [verb] (to [value]) | Future simple — used for clearly labelled forecast data only |
| Expression | Usage Note |
|---|---|
| despite [noun / gerund], … | Concessive opener: 'Despite starting from a low base, Nigeria's figures grew rapidly' |
| having [past participle], [subject] … | Perfect participle for sequencing: 'Having peaked in 2015, the figure declined' |
| with [noun] [verb-ing], … | Absolute construction: 'with adoption rising across the region, …' |
Sentence Patterns
Ten reusable patterns that cover roughly 90% of what a Band 7.5+ line-graph response needs to say. Memorise them with their slots — the grammar is already correct, you only fill in the data.
| Pattern | When to use it |
|---|---|
| [Subject] rose steadily from [X] in [year] to [Y] by [year]. | Linear, steady-growth narrative — the workhorse of Body A. |
| After peaking at [value] in [year], [subject] declined to [value] by [year]. | Two-phase narrative: a peak followed by a fall. |
| The figure for [X] more than doubled, climbing from [Y] to [Z] over the period. | Ratio comparison — Band 7+ when used at most once or twice in a response. |
| While [X] saw a sharp rise, [Y] remained virtually unchanged. | Simultaneous-contrast sentence — pairs two lines in a single comparison. |
| [X] experienced a [adjective] [increase / decrease] of [amount / percentage points]. | Nominalisation pattern — turns a movement into a noun phrase for variety. |
| [X] was [number] percentage points higher than [Y] in [year]. | Precise numerical comparison — use when the gap is interesting. |
| Despite starting from a [negligible / low] base, [X] reached [value] by the end of the period. | Concessive opener — a Band 7+ grammar feature for body paragraphs. |
| By [year], the gap between [X] and [Y] had narrowed / widened to [value]. | Past perfect with a comparison — links two lines through a single endpoint. |
| [X] is projected to reach [value] by [year]. | Forecast language — use only for dashed/labelled projection lines. |
| Both [X] and [Y] followed a similar upward trajectory, although [X] grew more rapidly. | Pairs two lines under a single description, then adds a small contrast. |
Pattern Training Game
Reading the patterns above never sticks — you have to type them. The training game drills eight of these patterns in three stages each, so the structure becomes muscle memory before you sit down to write.
| Stage | What you do |
|---|---|
| Trace | Type the full sentence character by character. Errors flash red, combo counts up. Builds the muscle memory. |
| Fill | The example is gutted down to its skeleton — you type back the structural words. Proves you remember the shape, not just the vocabulary. |
| Compose | Given a fresh scenario, write your own sentence in the pattern, hit the required markers, then check against a model answer. |
About 20–25 minutes to clear all eight patterns · progress saved in your browser
Nominalisation — a Band 7+ Variety Trick
Nominalisation means converting a verb-led sentence into a noun-led one. It buys you grammatical variety — examiners reward Grammatical Range when they see both forms inside the same response. Aim for one or two nominalised sentences per essay, no more (over-using them sounds bureaucratic).
| Verb-led (common) | Noun-led (nominalised) |
|---|---|
| Sales rose sharply between 2010 and 2015. | There was a sharp rise in sales between 2010 and 2015. |
| The figure declined gradually after 2018. | A gradual decline in the figure followed 2018. |
| Internet use grew more than threefold over the period. | Internet use saw more than threefold growth over the period. |
| Production fluctuated throughout the decade. | Production experienced significant fluctuations throughout the decade. |
| Prices peaked at $80 in 2020. | Prices reached a peak of $80 in 2020. |
Common Pitfalls
Each pitfall includes a wrong → right pair so you can recognise the error in your own writing.
Writing Practice — Write the Full Response
Patterns and vocabulary are scaffolding. The actual skill is sitting down for 20 minutes and producing a 150+ word response under time pressure. Do this now, before you read the model answer below — looking at the model first makes this exercise almost useless.
Set a 20-minute timer. Plan for 60 seconds using the five-step workflow above, then write your response. Resist looking at the model answer until you finish.
You should spend about 20 minutes on this task.
The line graph below shows the percentage of the population using the internet in three countries — South Korea, Brazil, and Nigeria — from 2000 to 2020.
Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
Write at least 150 words.
| Year | South Korea | Brazil | Nigeria |
|---|---|---|---|
| 2000 | 44% | 3% | 0.1% |
| 2005 | 68% | 21% | 3% |
| 2010 | 83% | 41% | 28% |
| 2015 | 90% | 60% | 47% |
| 2020 | 96% | 74% | 55% |
Model AnswerBand 7.5+ · ~165 words
The line graph illustrates the proportion of the population who accessed the internet in three countries — South Korea, Brazil, and Nigeria — across a twenty-year period from 2000 to 2020.
Overall, internet adoption rose in all three countries throughout the period, with South Korea recording consistently the highest rates and Nigeria the lowest, though the gap between them narrowed considerably by 2020.
South Korea began with the highest proportion, at approximately 44%, and climbed steadily to reach 96% by 2020 — the only country to approach near-universal internet access. Brazil, starting from a far lower base of around 3%, followed a similar upward trajectory and had reached 74% by the end of the period, more than doubling its figure between 2010 and 2020.
Nigeria's figures were considerably lower throughout. Usage stood at a negligible 0.1% in 2000 before rising sharply to 28% by 2010. Growth then continued at a rapid rate, with the figure reaching 55% by 2020 — a dramatic increase over the full period, despite the country starting from a negligible base.
Annotated Commentary
Each paragraph is quoted, then broken down by examiner criteria. Study which phrases earn marks and why — these are the moves you copy.
How the Model Answer Was Built
The model answer above did not come out fully formed. Here is the decision path behind it — five steps that you can copy on test day.
Band Descriptor Map
Why does the model answer score Band 7.5+? This table maps it to the four official criteria — useful for self-marking your own practice responses.
| Criterion | Evidence in the model answer |
|---|---|
| Task Achievement | Clear overview as paragraph 2 with no figures; all key features covered; figures accurate and appropriately hedged; no opinions, causes, or recommendations. |
| Coherence & Cohesion | Logical paragraphing (intro → overview → Body A → Body B); explicit linkers used sparingly ('Overall,', 'while', 'in contrast'); cohesion also achieved by lexical reference ('a similar upward trajectory'). |
| Lexical Resource | Topic-precise vocabulary ('trajectory', 'negligible', 'adoption', 'near-universal'); both verb and noun forms of movement ('rose' / 'a rise'); approximation language ('approximately', 'around'); no informal phrasing. |
| Grammatical Range & Accuracy | Variety of structures: concessive ('despite … starting from'), absolute ('with the figure reaching'), reduced relative ('the only country to approach'), past perfect ('had reached by'), participle ('starting from a far lower base'); consistent past simple throughout. |
Self-Check
Answer these from memory before looking back. If you cannot answer all, re-read the relevant section.
- What is the single most important paragraph for Task Achievement, and what must it NOT contain?
- A graph is dated 1990–2010. A student writes: 'The figure rises from 30% in 1990 to 45% in 2010.' What is the error?
- You want to compare two lines: South Korea and Brazil. Write one sentence using 'while' or 'whereas' with at least one specific figure.
- What is the difference between 'rose by 20%' and 'rose to 20%'?
- A graph has six lines. Should each line get its own body paragraph? If not, what should you do instead?
- Re-write the verb sentence 'Sales fell sharply after 2015' as a noun-phrase sentence (nominalisation).
- The graph contains a dashed line covering 2025–2030. What tense or modal forms should you use, and why?