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Process Diagram

Band 5+: The diagram below shows how geothermal energy is used to produce electricity. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

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Image for topic: The diagram below shows how geothermal energy is used to produce electricity. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

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The image shows a labeled diagram of a geothermal power plant, with annotations indicating the flow of cold water down 4.5 km into the injection well, through the geothermal zone containing hot rocks, and up the production well as hot water, which powers a turbine connected to a generator that produces electricity, and then passes through a condenser to be pumped back down, completing the cycle.

Given the complexity of the image, the above description may not be entirely accurate.

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The image outlines the way in which geothermal power plant is generated.

Overall, the production of geothermal power plant begins with pumping down the cold water and ends with the generator producing electricity. In total, there are five steps involved which require the helps of machinery.

In order to generate geothermal power plant, in the first stage, the cold water is pumped down through the injection well which is buried underground and 4.5 km long. After that, the cold water and pass through geothermal zone, known as hot rocks, which transformed it into the hot water and go into the production well which pump up the hot water into condenser.

Subsequently, the condenser changes the hot water into the steam and go through the turbine powered by the steam and generator powered by the turbine. In the final process, the electricity is produced and transfer it to the geothermal power plant.

Word Count: 151

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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:

water: 6

which: 5

geothermal: 5

power: 4

plant: 4

through: 3

Try using synonyms for the above words

Task Response

The response addresses the task by describing the production process of a geothermal power plant. However, there are some inaccuracies and omissions in the report, such as missing details about the injection well, the condenser, and the cycle of pumping the water back down. More specific details from the diagram could have been included.

Coherence & Cohesion

The report is somewhat coherent and cohesive, with an attempt at organizing the information into stages. However, there are some issues with paragraphing and the flow of ideas. Transition words could have been used more effectively to improve the overall coherence.

Lexical Resource

There is an attempt to use a range of vocabulary, but some inaccuracies and repetitions are present. More precise and varied vocabulary related to the geothermal power plant production process could have been used to enhance the lexical resource.

Grammatical Range & Accuracy

The report demonstrates a mix of simple and complex sentence structures. However, there are several grammatical errors, such as subject-verb agreement issues, missing articles, and awkward phrasing. More attention to grammatical accuracy would improve the overall score.

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Band 5+: The diagram below shows how geothermal energy is used to produce electricity. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

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Overall Band Score

Task Response

Coherence & Cohesion

Lexical Resource

Grammatical Range & Accuracy

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The diagram below shows how geothermal energy is used to produce electricity. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The diagram below shows how geothermal energy is used to produce electricity. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The diagram below shows how geothermal energy is used to produce electricity. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

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