Academic Writing Task 1 · line graph

Trends in Global Food and Oil Prices from 2000 to 2011: IELTS Writing Task 1 sample answer

An IELTS Writing Task 1 line graph question with a Band 8 sample answer, the chart redrawn with its data, the vocabulary that lifts the report and how to write about line graphs.
  • 193 words
  • Line graphs
  • Academic
  • 20 minutes

The question

The graph below shows changes in global food and oil prices between 2000 and 2011.

Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words.

World Food and Oil Prices 2000 to 2011 (Food price index (points) and Average oil price (per barrel))
050100150200250200020022004200620082010
  • Food Price Index
  • Average Oil Price
View the data
200020012002200320042005200620072008200920102011
Food Price Index88929095105115120125180150170235
Average Oil Price929585951051151401351304580105

Chart redrawn by BandLadder from the data in the original IELTS practice task. Many IELTS practice tasks come from the Cambridge IELTS series (Cambridge University Press & Assessment); all rights in the original tasks remain with their owners.

Model answer

Band 8 sample answer

Band 8193 words. Every figure in the answer comes from the chart above.

The line graph illustrates the fluctuations in global food and oil prices between 2000 and 2011. Overall, both indices showed a strong positive correlation of 93.6%, with both commodities experiencing substantial growth over the period, punctuated by a dramatic surge and subsequent collapse around 2008.

At the start of the period in 2000, food prices stood at 88 points, while oil was priced at approximately $92 per barrel. Both metrics remained relatively stable until 2004, after which they began a steady climb. By 2007, the food price index had reached 125 points, while oil prices had risen to $135. The most volatile period occurred in 2008, when food prices peaked at 180 points and oil prices hit a high of $130.

Following this peak, both commodities saw a sharp decline in 2009, with food prices dropping to 150 points and oil plummeting to $45. However, both indices recovered thereafter. By 2011, the food price index surged to a period high of 235 points, while oil prices climbed back to $105 per barrel. The data highlights a clear, long-term upward trajectory for both global commodities despite the significant volatility observed during the 2008-2009 period.

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Line graphs

How to write about line graphs: tips and vocabulary

  • →Overview first: the overall direction of each line and which was highest.
  • →Group lines that move together instead of describing each one in turn.
  • →Give the start and end figures plus the peak or low point, not every value.
  • fluctuations

    irregular rising and falling in number or amount

  • correlation

    a mutual relationship or connection between two things

  • punctuated

    occurred at intervals throughout a continuing period

  • trajectory

    the path followed by a development over time

  • plummeting

    falling or dropping straight down at high speed

  • volatility

    liability to change rapidly and unpredictably for worse

Frequently asked questions

What should the overview say?+

Both food and oil prices experienced a significant upward trend over the eleven-year period, characterised by a sharp, synchronized peak in 2008 followed by a dramatic decline.

How many words and how long for IELTS Writing Task 1?+

At least 150 words; 170 to 200 is the safe range. Spend about 20 minutes on it and leave 40 for Task 2, which carries twice the marks.

How is IELTS Writing Task 1 scored?+

On four criteria: task achievement, coherence and cohesion, vocabulary, and grammatical range and accuracy. A clear overview of the main features is what most separates Band 6 from Band 7 and above.

How do I describe line graphs?+

Overview first: the overall direction of each line and which was highest. Group lines that move together instead of describing each one in turn. Give the start and end figures plus the peak or low point, not every value.

Keep practising

More line graphs

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