Pie Chart

Band 5+: Sources of Electricity Generation in a Country, 2000 vs 2020.

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Image for topic: Sources of Electricity Generation in a Country, 2000 vs 2020.

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The image displays two pie charts on the sources of electricity generation in a country for the years 2000 and 2020. In 2000, the proportions were: Coal 45%, Gas 20%, Nuclear 15%, Hydropower 12%, and Renewables 8%. In 2020, the figures were: Coal 25%, Gas 28%, Nuclear 10%, Hydropower 12%, and Renewables 25%.

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The two pie charts compare the proportion of electricity generated from five different sources-coal, gas, nuclear, hydropower and renewables in a particular country over a 20-year period from 2000 to 2020. Overall, coal was by far the most prevalent source over the period shown, while hydropower was consistently recorded stable source throughout the period. Notably, gas and renewables experienced a gradual and increase, whereas nuclear remained a steady decline.

Looking at renewables specifically, in 2000, it was by far the lowest source, accounting for 8%; therefore it rose significantly untill 2020 to approximately 25%. Similarly, gas experienced an upward source. It started the period with 20% in 2000, after this source recorded 8% gas, reaching to 28%. By the end of the period, it finished the period with 28% in 2020.

Meanwhile, nuclear stood at 15% in 2000, it then experienced a reduction about 5% in 2020. This source ended the period with 10%. Coal remained a dramatic decrease over the period. In 2000, it was about 45%; thereafter it declined about 20% and finished the period with 25% in 2020. Finally, hydropower remained relatively stable throughout the period with 12%.

Word Count: 191

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Overall Band Score

5.5

(+/- 0.5)

Vocabulary Complexity:
C1 - Intricate
Strive to incorporate even richer and more precise language.

Grammar Mistakes: N/A

Vocabulary Repetition:

period: 10

source: 6

nuclear: 3

hydropower: 3

renewables: 3

experienced: 3

remained: 3

about: 3

Try using synonyms for the above words

Task Response

The report covers the requirements of the task and provides a clear overview of the main trends. The comparison between the two years is evident, and the key data points are included. However, there are some inaccuracies in the description of the trends (for example, describing coal as the 'most prevalent' overall when it actually saw a significant decline, and some confusing phrasing regarding the gas statistics). To improve, ensure that the mathematical descriptions of changes (e.g., 'declined about 20%' vs 'declined by 20 percentage points') are precise and that the overview accurately reflects the most significant shifts in the data.

Coherence & Cohesion

The report follows a logical structure, but the progression of ideas is occasionally hindered by awkward phrasing and repetitive sentence structures. While you use some cohesive devices (e.g., 'Overall', 'Notably', 'Meanwhile'), they are sometimes used in ways that do not smoothly connect the ideas. To improve, focus on using a wider variety of linking words and ensure that each sentence flows naturally into the next. Avoid repeating the same sentence patterns (e.g., 'In 2000, it was... in 2020, it was...') to create a more sophisticated flow.

Lexical Resource

The vocabulary used is somewhat limited and occasionally inaccurate in context. For example, phrases like 'experienced a gradual and increase' or 'experienced an upward source' are not idiomatic English. There is also some repetition of words like 'period' and 'source'. To reach a higher band, aim to use more precise academic collocations, such as 'witnessed a significant rise', 'underwent a decline', or 'remained constant'. Work on using synonyms to avoid repeating the same terms throughout the report.

Grammatical Range & Accuracy

There are several grammatical errors that impact the clarity of the report. Issues include incorrect word forms (e.g., 'a gradual and increase' instead of 'a gradual increase'), preposition errors (e.g., 'reduction about 5%' instead of 'reduction of 5%'), and run-on sentences (e.g., 'Meanwhile, nuclear stood at 15% in 2000, it then experienced...'). You should practice using complex sentence structures, such as relative clauses, to combine ideas more effectively. Pay close attention to subject-verb agreement and the correct use of articles and prepositions.

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Lexical Resource

Grammatical Range & Accuracy

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