Band 4.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 4.0 · Cambridge IELTS 14 · 2026-09-06

IELTS Writing Task 1 question

The diagram below shows how electricity is generated in a hydroelectric power station.

Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

Student answer (Band 4.0)

The diagram showns the how electricity is generated in hydroelectric power station. first is electricity is essential for living organism because it is a need of living organism .In the picture we the diagram of power station water is crucial for the electricity its play a important role in it .

first level is dam and it is intake day open night closed after that its flow the water generate electricity .After that its go throught the power station and reach to the power lines and national grid with low level reservoir than the power station work to process.

So from the diagram we can see that how the power station work and water is necessary for the process . we have to use light and water less because both are important for the future at the same time present also.

ELECTRICITY IS THE PART OF THE LIFE AND WE CAN SAFE OWER LIFE BY USING THEM LESS.

AI examiner evaluation

Task Achievement / Task Response — Band 4.0

The response fails to adequately address the requirements of an Academic Task 1 report. Instead of providing a clear, objective summary of the process shown in the diagram, the student includes irrelevant personal opinions about the importance of electricity and water conservation. The description of the process is fragmented and lacks a logical flow, failing to clearly explain the stages of electricity generation. Key features, such as the turbine, generator, and the cycle of water, are either omitted or described in a way that is difficult to follow. The response does not provide a clear overview or a structured summary of the information presented in the diagram.

Coherence and Cohesion — Band 4.0

The response lacks a logical structure. It is not organized into clear paragraphs that separate the introduction, the process description, and the conclusion. The use of cohesive devices is minimal and often misused, such as the repetitive and awkward use of 'first' and 'after that'. The progression of ideas is disjointed, making it difficult for the reader to follow the sequence of the hydroelectric process. The final paragraph, written in capital letters, is entirely disconnected from the task and further disrupts the coherence of the report.

Lexical Resource — Band 4.0

The vocabulary is very limited and repetitive. The student relies on basic, everyday language that is not appropriate for a technical description of a process. There are frequent errors in word choice, such as 'intake day open night closed' and 'its flow the water', which impede clarity. The student struggles to use precise terminology related to the diagram (e.g., turbine, generator, penstock). The overall range of vocabulary is insufficient to convey the information accurately or professionally.

Grammatical Range and Accuracy — Band 4.0

The response contains frequent grammatical errors that often obscure the intended meaning. There are significant issues with subject-verb agreement (e.g., 'The diagram showns'), sentence structure, and punctuation. The use of articles and prepositions is inconsistent throughout the text. The response consists mostly of simple sentences with limited attempts at complex structures, and those attempts are often grammatically incorrect. The frequent errors in basic grammar make the text difficult to read and understand.

See this exact question answered at other band scores — the same prompt compared across bands.

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