Line Graph Ielts Essay Topics

IELTS Writing Task 1: Question

You might see a line graph like this one in Task 1. The ability to describe changes over time is a key skill in line graph tasks.

The diagram shows the consumption of renewable energy in the USA from 1949-2008.

Write a 150-word report for a university lecturer identifying the main trends and making comparisons where relevant.


IELTS Writing Task 1: Model Answer

The line graph shows growth in the consumption of renewable energy during the period 1949-2008 in the USA. The results are also broken down by source.

The first thing to note is that renewable energy use more than doubled over the period, with particularly strong growth in biofuels. This sector did not exist in 1980 but experienced a steep rise during the 2000s to over one quadrillion Btu per year. This made biofuels a serious challenger to both wood and hydroelectric power, which both saw only limited growth overall. The former grew steadily between 1975 and 1985, but then slipped back to around its original level of 1.8 quadrillion Btu. The latter began the period at the same level as wood but experienced more substantial growth. However, it also fell back to around 2 quadrillion Btu, with a particularly sharp drop in the late 1990s.

Finally, wind power emerged late in the period but showed a gradual rise to around 0.5 quadrillion Btu, suggesting that it, along with biofuels, will replace wood and hydroelectricity as the main sources of renewable every in the future.

(184 words, IELTS 8.0)


Why does this Task 1 answer get an IELTS Band 8 score?

Task achievement: The model answer describes the overall trend first, followed by an analysis of the different energy sources. Numerical evidence is used sparingly to illustrate the trends. The main trends are used as the basis of a prediction in the final sentence.

Coherence and cohesion: Trends are explained in general terms first, followed by supporting figures. Some energy sources are grouped together for ease of understanding. It and this are used throughout as cohesive devices, and the writer uses the former and the latter to refer back to information in a previous sentence.

Lexical resource: The writer uses a wide range of vocabulary to describe change, including adjectives and adverbs such as limited, substantial and particularly sharp, and verbs such as doubled, slipped and emerged.

Grammatical range and accuracy: The model answer is free from grammatical errors. Sentence forms are complex and include relative clauses and linking words such as with. The candidate makes use of past, present and future tenses. Punctuation is also used carefully and accurately throughout.


Teacher’s Notes

A line graph question in IELTS Writing task 1 will typically ask you to compare the performance of several different things over time, in this case renewable energy sources. Maximise your score by making good use of reference links such as ‘the former/latter’ and ‘respectively’. Even though you are only supposed to describe what is shown in the graph, a nice way to end is to make a prediction about the future based on the current trend.

Would you like me to check your IELTS writing answers and give you expert feedback based on the official scoring criteria? My online IELTS Writing Practice Test will show you how to improve by a whole band score in just two days. Read more.


 

IELTS Writing, Sample Answers, Task 1IELTS. permalink.

You should spend about 20 minutes on this task.

The graph below compares the changes in the birth rates of China and the USA between 1920 and 2000.

Summarise the information by selecting and reporting the main features and make comparisons where relevant.

Write at least 150 words.

The graph some striking similarities between the Chinese and the US birth rates from 1920 to 2000. Both countries experienced considerable fluctuations in the similar period with during the 1940s and during the .

The birth rates in China rose from 10% in 1920 to 15% in 1935. Later, the figure plunged to a low of 5% in the 1940s and was followed by an exponential growth to the peak of 20% in 1950. Next, the fertility rate dropped sharply to 8% in the following five years. Finally, the figure declined gradually to 3% during the latter half of the century.

Meanwhile, the US had similar birth rate of 12% to that of China in 1920. The figure fluctuated in between 12% and 14% during 1920s and 1930s until it hit a low of 4% in 1945. Five years later, the birth rate reached a peak at 15% in 1950 but it made a steady fall to the final figure of around 7% in 2000.

This report covers the requirements of the task. The main trends / features were sufficiently developed. The candidate has arranged ideas coherently, though the use of linking words can be improved. The range of vocabulary is adequate. There are a few errors in grammar and word choice, and one instance of inaccurate data. Overall, the task response meets the expectations and seems good enough to achieve Band 7.

Click here to see more IELTS reports of band 7

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