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Process Diagram

Band 6+: 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.

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This is one of the popular ways how to use the energy of nature. The following diagram illustrates the process of electricity production through geothermal power.

The basis of electrical production from the ground is steam production. The process of construction electricity by the energy of heat in the ground has five levels. We can divide this procedure into two parts: events that occur on or in the ground. Also, this production requires two wells which are 4.5 kilometers, the injection well and the production well.

The first step, the cold water is pumped down by the injection well. Because of the hot rocks in the geothermal zone, this cold water transfers to hot water. By the production well, the hot water is reached on the ground, then is maintained in the condenser in the fourth step. The fifth step, the steam of hot water can move the turbines. This movement finally causes electricity production in the generator.

Word Count: 158

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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:

production: 7

water: 5

ground: 4

electricity: 3

Try using synonyms for the above words

Task Response

6.5

The main features of the process are identified, but there are some inaccuracies and omissions in the report. The comparison of different stages is somewhat unclear.

Coherence & Cohesion

5.5

The report lacks overall coherence and cohesion. The organization of ideas is somewhat confusing, and there are issues with paragraphing.

Lexical Resource

5.5

There is an attempt to use a range of vocabulary, but some inaccuracies and repetitions are present. More precise and varied vocabulary could enhance the report.

Grammatical Range & Accuracy

5.5

While a variety of sentence structures are attempted, there are errors in grammar and punctuation throughout the report. More attention to accuracy is needed.

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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.

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Band 9

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Band 6+: 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

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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.

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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