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How to write IELTS Writing Task 1 Line Graph/ Graph with a trend

One of the most common tasks in IELTS Writing Task 1 is the "trend" - the changes over time. You may encounter some topics related to graphs such as tables, bar charts, line graphs, or pie charts. How can you quickly handle the Graph with a trend task in IELTS Writing while saving time and still achieving a high IELTS band score?
In this article, PREP will guide Preppies on how to handle IELTS Writing Task 1 Line Graph/ Graph with a trend quickly and effectively. Refer to the article immediately to apply it during your real exam preparation process!

How to write IELTS Writing Task 1 Line Graph/ Graph with a trend
How to write IELTS Writing Task 1 Line Graph/ Graph with a trend

I. Overview of IELTS Writing Task 1 Line Graph/ Graph with a trend

1. What is IELTS Writing Task 1 Line Graph/ Graph with a trend?

IELTS Writing Task 1 Line Graph/ Graph with a trend task involves charts that include a time element, most notably line graphs (each line represents the changes of an object over a period). Additionally, the Graph with a trend task can also include other types of charts with data from different time points. The writer needs to identify the overall trend and analyze the changes in each stage. Below is an example of a line graph in the IELTS Writing test:

  • Example 1: The charts below show the changes in ownership of electrical appliances and amount of time spent doing housework in households in one country between 1920 and 2019.
What is IELTS Writing Task 1 Line Graph/ Graph with a trend?
What is IELTS Writing Task 1 Line Graph/ Graph with a trend?
  • Example 2: The graph below shows the number of enquiries received by the Tourist Information Office in one city over six months in 2011. Summarise the information by selecting and reporting the main features and making comparisons where relevant.
What is IELTS Writing Task 1 Line Graph/ Graph with a trend?
What is IELTS Writing Task 1 Line Graph/ Graph with a trend?

2. Vocabulary for IELTS Writing Task 1 Line Graph/ Graph with a trend

To effectively present an IELTS Writing Task 1 Line Graph/ Graph with a trend, you need to use scoring English vocabulary. Here are some key vocabulary words:

  • To show an upward/downward trend
  • To witness/see/experience/… a sharp increase/decrease
  • To remain stable >< To vary significantly
  • To steeply rise >< To gently/gradually increase
  • To hit the lowest/highest point of

II. Outline for Graph with a Trend

To achieve a high band score in IELTS Writing, creating an outline before writing is crucial. Here is an effective outline for IELTS Writing Task 1 - Line Graph:

  • Introduction: Paraphrase the question.
    • Line graph  The graph.
    • show → illustrate, compare, demonstrate.
  • Overview: Highlight the most prominent factors (general trends, highest/lowest points, etc.).
  • Body: Divide the data into groups with similar trends and analyze each group in a separate paragraph.

III. Sample Essay for Graph with a Trend in IELTS Writing Task 1

1. A sample prompt of IELTS Writing Task 1

The chart below gives information from a 2008 report about the consumption of energy in the USA since 1980 with projections until 2030. Summarise the information by selecting and reporting the main features and make comparisons where relevant.

A sample prompt of IELTS Writing Task 1
A sample prompt of IELTS Writing Task 1

2. A sample essay of IELTS Writing Task 1

Please refer to the sample IELTS Writing Task 1 - Line Graph:

The chart describes U.S. energy consumption by different sources from 1980 to 2008 and the expected changes until 2030. 

Overall, Petrol and Oil and Coal have constantly been rising and will continue to grow further in the future. Meanwhile, energy from Natural Gas, Nuclear, Solar/Wind, and Hydropower will essentially remain constant.

In 1980, the U.S. consumed 35 quadrillion units of energy from Petrol and Oil. This number was significantly higher than any other source and about twice as much as the following two sources: Coal and Natural Gas. There were a few dips over the coming years, but, in general, the demand for petrol and oil quickly recovered and rose constantly. It is anticipated that by 2030, Americans will use almost 50 quadrillion units of energy from this source, still far more than the remaining types of fuel. Similarly, Coal also saw a continuous rise from 15 quadrillion units in 1980 to a projected figure of 30 quadrillion units in 2030, surpassing Natural Gas along the way to become the second most used source.

The remaining energy sources saw little change from 1980 to 2008 and are all expected to remain stable for the rest of the period. Natural Gas started at 20 quadrillion units, and after experiencing slight fluctuations between 1985 and 2015, the number is projected to stay flat at 25 quadrillion units. Nuclear, Wind/Solar, and Hydropower, which have the lowest figures, witnessed virtually no change, each with around 4 to 6 quadrillion units throughout the entire period.

IV. Conclusion

This article has provided an overview of how to write and a sample essay for the IELTS Writing Task 1 Line Graph/ Graph with a trend. Hopefully, the knowledge in the above article will help you easily achieve a high score in IELTS Writing and make the most of your time to complete IELTS Writing Task 2. PREP wishes you good preparation for the IELTS exam and the achievement of your goals.

CEO Tú Phạm
Master Tu Pham
Founder/CEO at Prep
Mr. Tú Phạm is the founder of PREP, a Smart Test Preparation Platform. With over 10 years of teaching and test preparation experience, he has assisted thousands of students in achieving high scores on the IELTS exam. Additionally, Mr. Tú Phạm serves as a consultant for British Council programs and as a speaker at numerous premier education events, programs, and seminars.
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