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IELTS Writing Task 1: line graph and bar chart

B2Writing40 questionsUpdated

IELTS Academic Writing Task 1 asks for 150 words describing a graph or chart in twenty minutes. The two things that decide the mark are whether you write a real overview and whether your trend language is accurate. This page drills both, with forty original questions on trend verbs, comparison, tense and data selection.

What this task tests

  • Whether you write an overview paragraph stating the main features, without figures.
  • Accuracy of trend language: rise, fall, fluctuate, level off, peak, plateau.
  • Whether you select data rather than listing every number on the chart.
  • Correct tense: past for a finished period, future forms for projected years.
  • Grammar of comparison: twice as many, three times higher, slightly more than.
  • Whether you group data logically rather than describing each line in turn.
  • Control of the twenty-minute limit and of the 150-word minimum.
  • Paragraphing: introduction, overview, then one or two body paragraphs.
  • Whether you avoid explaining or evaluating the data, which Task 1 does not ask for.
  • Accurate use of prepositions in figures: rose by, rose to, rose from.

How to do it

  1. Step 1:

    Spend two minutes reading the chart

    Check the units, the time span and whether the axis starts at zero. Note the highest and lowest points before you write anything.

  2. Step 2:

    Paraphrase the title in one sentence

    That is your introduction. Change the nouns and the verb, keep the units and the dates.

  3. Step 3:

    Write the overview second, not last

    Two sentences on the biggest movements and the overall relationship between the lines. No figures belong here.

  4. Step 4:

    Group the data

    Put lines that behave alike in one paragraph and the exception in the other. Describing each line in turn produces a list, not a description.

  5. Step 5:

    Support with selected figures

    Three or four numbers per body paragraph, chosen for the start, the peak and the end. Every figure needs its unit.

  6. Step 6:

    Fix the tense before you start

    A chart ending in a past year is past simple throughout; a projection uses is expected to or will.

  7. Step 7:

    Check the prepositions as you write

    Rose by ten per cent, rose to forty per cent, rose from ten to forty per cent. These are marked as grammar, not vocabulary.

  8. Step 8:

    Count words only once

    Learn roughly how many lines of your handwriting make 160 words so that you never count during the exam.

  9. Step 9:

    Leave two minutes to check

    Look for missing plurals, missing units, and a missing overview: those three errors cost more than any sentence you could add.

Mistakes that cost marks

  • Not thisThe number of visitors increased of 20%.

    ThisThe number of visitors increased by 20%.

    An amount of change takes 'by'; a destination figure takes 'to'.

  • Not thisWriting an introduction and three body paragraphs with no overview.

    ThisAdding two sentences summarising the main features.

    The overview is the single highest-value paragraph in Task 1, and answers without one cannot reach the higher bands for task achievement.

  • Not thisThe graph shows that people should travel less by car.

    ThisCar journeys fell steadily over the period.

    Task 1 asks for description, not explanation or recommendation. Reasons and opinions earn nothing.

  • Not thisListing every value on the chart in turn.

    ThisSelecting the highest, the lowest and the turning points.

    The instruction says to select and report the main features, so completeness is not the goal.

  • Not thisThere was a raise in sales.

    ThisThere was a rise in sales.

    Raise is a transitive verb; the noun for an upward movement is a rise or an increase.

  • Not thisSales increased dramatically from 2010 until 2011 by a small amount.

    ThisSales rose slightly between 2010 and 2011.

    The adverb must match the size of the movement, and dramatic movements are rarely small.

  • Not thisUsing the present simple for a graph covering 1990 to 2015.

    ThisUsing the past simple throughout.

    A finished period takes past tense; mixing tenses inside a description is a visible grammar error.

  • Not thisWriting 210 words to be safe.

    ThisWriting about 160 to 180 words.

    Task 1 is worth a third of the writing mark; time spent past 180 words is taken from Task 2, which is worth twice as much.

Language this task keeps reusing

fluctuate
to rise and fall repeatedly
level off
to stop rising or falling and stay steady
plateau
a period when a figure stays at the same level
peak
the highest point reached
trough
the lowest point reached
steadily
at a regular, even rate
sharply
by a large amount in a short time
marginally
by a very small amount
overtake
to rise above another figure that was previously higher
respectively
in the order already given
roughly
approximately
the period
the span of time the chart covers
overview
a short summary of the main features, without figures
proportion
a share of a total, often given as a percentage
outstrip
to grow faster than something else
a tenfold increase
an increase to ten times the original figure

Practice: task 1: graphs & charts

40 original questions. The first 10 are open to everyone. Answers are checked in your browser and never sent to us, so you can share this page with a class as it is.

1Complete the sentence.

Task 1 asks for at leastwords, and you have about twenty minutes to write them.
Which sentence is grammatically correct?

3Complete the sentence.

The paragraph summarising the main features without any figures is called the.
A line stays at the same level for four years. Which description is accurate?
Decide whether each statement about Task 1 is true or false.
  • You should explain the reasons behind the trends shown.
  • An overview should not contain specific figures.
  • The introduction should paraphrase the title of the chart.
3 to go

6Complete the sentence.

Numbers rose45% by 2018, but they rose by 12 percentage points over the whole period.

7Write an overview sentence for a graph where car use rises steadily from 1990 to 2020 while bus use falls throughout.

Which adverb best describes a fall from 90 to 88?

9Complete the sentence.

If the chart covers 1995 to 2010, describe it in the pastthroughout.
The chart projects figures for 2030. Which form is appropriate?

Keep going

30 more questions on this page

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Frequently asked questions

Does the overview have to come second?

It does not have to, but it should. Putting it straight after the introduction guarantees it gets written, and an overview buried at the end is easy to run out of time for.

Should I include figures in the overview?

No. The overview states the main features — what rose, what fell, which was highest overall. Figures belong in the body paragraphs where they support specific claims.

How many figures should I quote altogether?

Six to eight across the whole answer is usually enough. Each one should do a job: mark a start, a peak, a crossing point or an end.

What if the chart shows no clear trend?

Then the main feature is the absence of one. Say that the figure fluctuated within a narrow band, give the range, and move on to whatever comparison the chart does support.

Is it a problem to write under 150 words?

Yes. An under-length answer is penalised directly, and there is no way to recover the mark. Aim for 160 to 180 so that a miscount never puts you below the line.

Can I use bullet points to save time?

No. Task 1 is assessed as continuous writing, and notes or bullets cannot demonstrate the cohesion and grammar the criteria ask for.