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Band 7+: The two graphs show the main sources of energy in the USA in the 1980s and the 1990s. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

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Image for topic: The two graphs show the main sources of energy in the USA in the 1980s and the 1990s. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

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The image includes two pie charts detailing U.S. energy sources percentages for 1980 and 1990. In 1980: oil 42%, natural gas 26%, coal 22%, nuclear power 5%, hydroelectric power 5%. In 1990: oil 33%, natural gas 25%, coal 27%, nuclear power 10%, hydroelectric power 5%.

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The given charts illustrates data about the main sources of energy in the USA in the 1980 and 1990 over a 10 year period.

Overall, in the America the dominant source of energy was oil in both decades, although its share decreased a bit over time. Meanwhile, the use of nuclear power and coal showed slight increases, while hydroelectric power experienced a small decline.

By the 1980, oil was the main source of energy at 42%, followed by natural gas at 26% and coal at 22%. Hydroelectric and nuclear power were the least significant sources, contributing 5% each of them.

In the 1990s, the percentage of oil decreased sharply to 33%, coal increased modestly to 27p percentage. Natural gas declined a bit, just for one percentage, to 25%. The share of nuclear power doubled to 10%, while hydroelectric power remained unchanged at 5 per cent over the ten year period.

Word Count: 150

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Overall Band Score

(+/- 0.5)

Vocabulary Complexity:
B2 - Upper Intermediate
Opt for even more advanced words when appropriate.

Grammar Mistakes: N/A

Vocabulary Repetition:

power: 5

energy: 3

nuclear: 3

hydroelectric: 3

percentage: 3

Try using synonyms for the above words

Task Response

The report effectively summarizes the main features of the energy sources in the USA during the 1980s and 1990s, making relevant comparisons. The data is presented clearly, and the overall trends are well-identified. To improve, ensure that all percentage changes are described with complete accuracy and avoid minor inaccuracies.

Coherence & Cohesion

The report is generally well-organized with a clear structure, including an introduction, overview, and detailed paragraphs for each time period. The information is presented logically, and the use of cohesive devices is adequate. However, there's room for improvement in paragraphing and flow. For instance, the transition between the overview and the detailed descriptions could be smoother. Consider using more varied cohesive devices to enhance the connection between sentences and paragraphs.

Lexical Resource

The report demonstrates a sufficient range of vocabulary to describe the data, including terms like 'dominant source,' 'decreased,' 'slight increases,' and 'modestly.' However, the vocabulary could be more precise and varied to avoid repetition and enhance the impact of the descriptions. For example, instead of repeatedly using 'increased' or 'decreased,' consider using synonyms like 'grew,' 'expanded,' 'diminished,' or 'contracted.' Also, try to incorporate more specific vocabulary related to energy sources and trends.

Grammatical Range & Accuracy

The report demonstrates a reasonable command of grammar, with a mix of simple and complex sentences. However, there are some grammatical errors and phrasing issues that need attention. For example, 'By the 1980' should be 'In 1980'. Also, '27p percentage' should be '27 percentage points' or '27%'. Pay closer attention to subject-verb agreement, correct use of prepositions, and accurate phrasing to improve the overall grammatical accuracy of the report.

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