Band 4.0 IELTS Writing Task 1 Model Answer
Overall Band Score: 4.0 · Cambridge IELTS 14 · 2026-09-07
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 DIAGRAME ILLUSTRATES HOW THEY GENERATED ELECTRICITY TO A HYDROELECTRIC POWER STATION.
OVERALL, RIVER IS COMING FROM MOUNTAIN AND THEIR IS A HIGH LEVEL RESERVOIR WHERE THEY PROVIDE INTAKE IN DAYS AND CLOSED AT NIGHT FLOW IS GOING THORUGH DAM DURING DAY TIME TO GENERATE ELECTRICITY WHILE IT PUMPING DURING
HERE THE POWERSTATION HAS THE GENERATOR WHERE THE NATIONAL GRID HAVING THE POWER LINES TO SUPPLY ELECTRICITY AND THEIR IS A TURBINES WGHICH OPERATES GENERATOR WHILE ON DAY TIME AND AGAIN PUMP WATER INTO HIGH LEVEL RESERVIOR DURING NIGHT TIME THE DAY WATER HAVING LOW LEVEL RESOVIER AS COMPARED TO NIGHT.
AI examiner evaluation
| Criterion | Band |
|---|---|
| Task Achievement / Task Response | 4.0 |
| Coherence and Cohesion | 4.0 |
| Lexical Resource | 4.0 |
| Grammatical Range and Accuracy | 4.0 |
| Overall | 4.0 |
Task Achievement / Task Response — Band 4.0
The response fails to meet the minimum word count requirement of 150 words, which significantly impacts the score. While the student attempts to describe the process, the explanation is incomplete and lacks a clear, logical summary of the main features. The description of the cycle is fragmented, particularly the mention of the pumping process, which is left unfinished. Because the response is significantly under-length and fails to provide a comprehensive overview of the diagram, it does not adequately address the requirements of the task.
Coherence and Cohesion — Band 4.0
The response lacks a logical structure. The paragraphs are poorly defined, and the progression of ideas is disjointed. There is a lack of cohesive devices to link the stages of the process, making the text difficult to follow. The use of referencing is unclear, and the overall arrangement of information is mechanical and confusing. The lack of a clear introduction or conclusion further hinders the flow of the report.
Lexical Resource — Band 4.0
The vocabulary is very limited and repetitive. There are frequent errors in word choice and spelling, such as 'DIAGRAME', 'RESOVIER', and 'WGHICH'. The student relies on basic terminology and struggles to use precise language to describe the technical process of electricity generation. The lack of variety and the persistent spelling errors make the text difficult to read and indicate a restricted range of vocabulary.
Grammatical Range and Accuracy — Band 4.0
The grammar is weak, with frequent errors that impede communication. There are significant issues with subject-verb agreement (e.g., 'THEIR IS A TURBINES'), incorrect verb tenses, and awkward sentence construction. The use of articles and prepositions is inconsistent throughout the text. The response consists mostly of simple, poorly constructed sentences, and there is no evidence of complex sentence structures. These persistent errors make the meaning unclear in several places.
See this exact question answered at other band scores — the same prompt compared across bands.
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