Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 12 · 2026-10-26

IELTS Writing Task 1 question

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.

Student answer (Band 6.0)

The diagram explains the process of producing electricity using geothermal energy.

Overall, the process of electricity production have 5 steps. Starting with cold water being pumped down to the deep parts of the soil, and them at the end generator turbine turning the steam into usable electricity. The process uses hot rocks known as geothermal zone to turn cold water into hot one and pushing it upwards at to the condenser.

The process starts with cold water being pumped down from the container to the injection well, which is 4.5 kilometers deep from the surface. After entering the injection well, the water is boiled in the geothermal zone(hot rocks), after that the hot water is is transferred to the production well, which will pump the water up towards the condenser.

In the condenser, hot water is turned into steam. Finally the steam moves the turbine to produce usable electricity in the generator.

AI examiner evaluation

Task Achievement / Task Response: Band 6.0

You identify the process and give a clear overall account of its main stages, including the 4.5-kilometre injection well, the geothermal zone, the production well, and the conversion of water into steam. This covers the central features accurately. However, the overview is not fully clear: “generator turbine turning the steam into usable electricity” confuses the roles of the turbine and generator. The turbine is driven by steam, while the generator produces electricity. Also, saying the process has “5 steps” does not clearly distinguish the numbered stages from the later turbine and generator stages. Clarifying the overview and describing the final equipment more precisely would make the key features more complete.

Coherence and Cohesion: Band 6.0

The response follows the process in a generally logical order, moving from water being pumped underground to its return to the surface and the production of electricity. The paragraphing also separates the overview from the detailed sequence. Some connections are less controlled, however. The overview begins with the fragment “Starting with cold water…” and then shifts to “and them at the end,” making the progression awkward. In the body, “After entering…,” “after that,” and “Finally” help signal sequence, but the repeated step-by-step linking can feel mechanical. The relationship between the turbine and generator is also unclear in the overview. Use complete overview sentences and vary or simplify sequencing language to improve flow.

Lexical Resource: Band 5.5

You use relevant process vocabulary, including “injection well,” “production well,” “geothermal zone,” “condenser,” and “steam,” which allows the reader to follow the diagram. There is some useful variation in phrases such as “pumped down” and “pump the water up.” However, several choices are imprecise or unnatural: “deep parts of the soil” is less suitable than a term for the underground, and “turn cold water into hot one” is awkward. “Generator turbine” also blurs two separate components. These choices do not prevent understanding, but more precise technical collocations would strengthen the description. Check word forms and spelling as well, such as “them” where “then” is intended.

Grammatical Range and Accuracy: Band 5.5

You attempt both simple and more complex forms, including passive constructions such as “is transferred” and “is turned into steam,” which suit a process description. Some errors remain in sentence structure and agreement. In “the process of electricity production have 5 steps,” the singular subject requires “has.” The sentence beginning “Starting with cold water…” is a fragment, and “and them at the end” does not form a clear grammatical continuation. There is also a repeated word in “the water is is transferred,” while “which will pump” shifts unnecessarily to the future. These errors rarely prevent the reader from understanding the sequence, but editing for complete sentences, consistent tense, and agreement would improve accuracy.

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