Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 12 · 2026-11-11

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 electricity production through geothermal power plants.

Overall, this process consist of five main stages elaborating the complete process started from the cold wter supply to the injection well and ends at the production of electricity.

Looking at the diagram in detail, it begins with the supply of cold water into the injection well of through a passage of 4.5 km long.It travel through the geothermal zone that is also called hot rocks leading towards the production well.The production well transferred the water supply to the condenser by pumping up the hot water.A large amount of steam is produced in the condenser that rotates the turbinevery fast resulting in the production of electricity that is ultimately supplied to the consumers.The whole procedure of power production is a continue process that generate energy in a systematically by using a planed track of water supply and production of electricity.

AI examiner evaluation

Task Achievement / Task Response: Band 6.5

You identify the process as a sequence and include several key stages: cold water is sent down the injection well, heated as it passes through hot rocks, and pumped up through the production well before reaching the condenser. The 4.5 km depth is also reported accurately. The overview, however, says there are five stages without clearly summarising the main transformation from cold water to steam and then electricity. Some details are imprecise: the condenser produces steam, which powers the turbine; the turbine drives the generator, where electricity is produced. The claim that electricity is supplied to consumers is not shown in the diagram. To strengthen the response, describe these final steps precisely and avoid adding outcomes not represented in the visual.

Coherence and Cohesion: Band 6.5

The response has a recognisable structure, with an introduction, an overview, and a detailed account that follows the process from left to right. Sequencing phrases such as “Overall” and “Looking at the diagram in detail” help signal this organisation, and the stages are generally presented in the correct order. However, the overview is vague, and the final sentence about a “continue process” and a “planed track” does not add a clear concluding point. Some links between stages are also compressed, particularly the transition from steam to the turbine and generator. Use separate, clearly connected sentences for the underground heating stage and the machinery at the surface, and make the overview state the process’s main transformation.

Lexical Resource: Band 5.5

You use relevant process vocabulary, including “injection well,” “geothermal zone,” “production well,” “condenser,” and “turbine,” which makes the subject clear. There are also attempts at more descriptive wording, such as “supply” and “resulting in.” However, several word choices or collocations are inaccurate or awkward: “rotates the turbinevery fast” is not a natural description, and “a continue process” and “planed track” are unclear. Spelling slips such as “wter” and “planed,” along with the missing space in “turbinevery,” reduce precision. Aim for concise, standard process language, for example, “steam drives the turbine” and “the generator produces electricity.”

Grammatical Range and Accuracy: Band 5.5

You attempt both simple and more complex sentence forms, including a relative clause in “the geothermal zone that is also called hot rocks” and a participle phrase in “resulting in the production of electricity.” The sequence remains broadly understandable, but grammatical errors occur in several sentences. For example, “this process consist” needs subject–verb agreement, while “It travel” and “the production well transferred” have incorrect verb forms. The opening overview also has an unclear construction in “process started from … and ends at.” Punctuation and spacing need attention, including the missing space after “long.” and the extra space in “at the.” Review agreement and tense consistency, and use shorter sentences when describing the final stages.

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