Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 14 · 2026-08-02

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 6.0)

There is a graph of producing electricity in hydroelectric power station with the help of water. Therefore the graph explain the intake of water in day and night by the dam. And the working of reversible turbines and generators.

The water from dam generate electricity with the help of tubines and generators. Tis is called hydroelectric pow station.

There is a dam attach with the river and it has high level water reservoir. In the day the door of dam is opened and flows of water to the reversible turbines for enerate elecricity. when the water comes to the turbines it can be spin and gives the power to the generator for produced electricity.Therefore the water flow to the low level reservior So, the power line of national grid is attached to the generator for tranfer of electricity. Therefore, in night te reversible turbines pump water back from low level reservior to the high level reservior

AI examiner evaluation

Task Achievement / Task Response — Band 6.0

The response addresses the task by describing the hydroelectric power generation process. However, the overview is weak and lacks a clear summary of the main features, such as the cyclical nature of the process. While the student identifies the key components (dam, turbines, generators, reservoirs), the explanation of the process is somewhat fragmented. The description of the 'day' and 'night' cycle is present but lacks the precision required for a higher band. To improve, ensure you provide a clear overview sentence after the introduction that highlights the main stages of the process, and ensure all technical terms are used accurately to describe the flow of energy.

Coherence and Cohesion — Band 6.0

The response is organised into paragraphs, but the logical flow between sentences is often mechanical. The use of cohesive devices is repetitive, with 'Therefore' used multiple times in a way that does not always logically connect the ideas. Referencing is sometimes unclear, such as in the phrase 'it can be spin', where the subject is ambiguous. Paragraphing is present but the transition between the general description and the specific process steps could be smoother. To improve, use a wider variety of linking words (e.g., 'subsequently', 'in contrast', 'consequently') and ensure that each paragraph has a clear, singular focus.

Lexical Resource — Band 5.5

The vocabulary is limited and repetitive, relying on basic terms like 'graph', 'door', and 'attach'. There are several spelling errors, such as 'tubines', 'pow', 'enerate', 'elecricity', 'tranfer', and 'reservior', which occasionally impede readability. The student attempts to use technical vocabulary related to the diagram, but the lack of precision in word choice (e.g., 'door of dam' instead of 'sluice gate' or 'intake') limits the score. To improve, focus on learning specific terminology related to mechanical processes and proofread carefully to eliminate basic spelling mistakes.

Grammatical Range and Accuracy — Band 5.5

The response relies heavily on simple sentence structures. There are frequent grammatical errors, including subject-verb agreement issues ('the graph explain', 'water from dam generate'), missing articles, and incorrect verb forms ('it can be spin', 'for produced electricity'). Punctuation is also inconsistent, with some sentences lacking proper structure. While the meaning is generally understandable, the high frequency of errors in basic grammar prevents the response from reaching a higher band. To improve, focus on mastering subject-verb agreement, correct use of articles, and the construction of passive voice, which is essential for describing technical processes.

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