Band 5.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.0 · Cambridge IELTS 12 · 2026-08-04

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 5.0)

''The diagram illustrates how geothermal energy is used to produced electricity by connected to the geothermal power plant.''

The geothermal power plant have five procedure, particularly firstly started with cold water, the injection well, the production well, Condenser and Generator Turbine.

Overall, geothermal a power plant has been generated the electricity. Firstly, the cold water pumped down, Geothermal hot rocks zone, 4.5 km high distance. After that the injection well has been pushed down the cold water to geothermal hot rocks zone.

Moreover, the production well pumped up to the hot water, Furthermore, the condenser through steam, turbine powered by steam and a wire connect, to the generator has been also there are plugged connected to geothermal power plant to generate the powerful electricity. In addition, Geothermal power plant consume the electricity by the usage of turbine generator, who constructed cold water down and hot water up to pushed the electricity.

AI examiner evaluation

Task Achievement / Task Response — Band 5.0

The response attempts to describe the geothermal energy process, but the information is often inaccurate or confusing. For example, the description of the '4.5 km high distance' and the claim that the plant 'consumes' electricity are factually incorrect based on the provided diagram. While the main features are identified, the explanation of how they function is disjointed and fails to provide a clear, logical summary of the process. The response lacks a coherent overview of the cycle, and the technical details are poorly explained, leading to a failure to fully address the task requirements.

Coherence and Cohesion — Band 5.0

The essay is divided into short, disjointed paragraphs. While some cohesive devices are used, such as 'Firstly', 'Moreover', and 'Furthermore', they are often used incorrectly or mechanically, which does not improve the flow of ideas. The progression of the process is difficult to follow because the sentences do not link logically to one another. For instance, the transition between the injection well and the production well is abrupt and lacks clear logical sequencing. The overall structure is fragmented, making it challenging for the reader to grasp the intended process.

Lexical Resource — Band 5.0

The vocabulary is limited and frequently inaccurate. There is a reliance on basic terms, and the misuse of technical terminology—such as 'consume the electricity' instead of 'generate' or 'produce'—significantly hinders clarity. Phrases like 'pushed down the cold water' and 'hot water up to pushed the electricity' demonstrate a lack of precision and an inability to use appropriate collocations for a technical description. The range of vocabulary is insufficient to describe the process accurately, and the errors in word choice are noticeable throughout the text.

Grammatical Range and Accuracy — Band 4.5

The response contains frequent grammatical errors that often impede communication. There are significant issues with subject-verb agreement (e.g., 'geothermal power plant have five procedure'), tense usage (e.g., 'has been generated'), and sentence structure. Many sentences are poorly constructed, such as 'the condenser through steam, turbine powered by steam and a wire connect, to the generator has been also there are plugged connected'. These errors are pervasive and make the text difficult to read. There is very little evidence of complex sentence structures, and the basic structures used are frequently flawed.

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