Band 5.5 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.5 · Cambridge IELTS 14 · 2026-11-14

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 5.5)

The diagram illustrates that how electricity is produced in a hydroelectric power station.

Overall,a huge amount of water came from the river to high level resevioir and after that it pass from a number of process and it the result electricity is produced .

In the biginning a large amount of water came from the river and reached to high level of reservior at the day time the dam was open so the goes downward at very a high spped on the dam while at night the dam has close .After passing from dam the generators are fixed at the ending point of the dam which start only when a speedy water reach its position and from that the generator generates electricity from that speed flow of the water while the water which are not used as electricity so that water went to a low level reservior while the electricity which was made from the water went to the power lines and after that it was than transferred to national grid.

While at night the generator help the water to move the water to the high level reservior from the low level reservior beacuse from this water the electricity is generated from them for the next day .

AI examiner evaluation

Task Achievement / Task Response: Band 6.0

You cover the main stages and include the important day–night contrast: water flows down to drive the turbines during the day, while at night it is pumped back to the high-level reservoir. You also mention the generator, power lines and national grid, so the response addresses the process rather than describing only one part. However, some details are unclear or inaccurate: the dam itself is not described as opening and closing; the intake is open by day and closed at night. The generator is inside the power station and connected to the reversible turbines, not simply fixed at the end of the dam. The overview identifies the general sequence, but could state more clearly that this is a cyclical system. Clarifying these points and developing the stages more precisely would strengthen the report.

Coherence and Cohesion: Band 5.5

The response has a recognisable structure, moving from an introduction and overview to the daytime process and then the nighttime operation. This gives the reader a basic sense of progression, and the contrast introduced by “While at night” is relevant. However, the long daytime paragraph combines several stages in one sentence, making the sequence difficult to follow. Connectors such as “after that” and “while” are repeated, and some references—such as “that speed flow” and “that water”—are not always clear. Use separate paragraphs for the overview, daytime flow and nighttime pumping, and link each stage with precise transitions such as “Next” and “Finally.” This would make the organisation clearer and reduce the mechanical feel of the linking.

Lexical Resource: Band 5.0

You use some relevant process vocabulary, including “reservoir,” “generator,” “power lines” and “national grid,” which helps communicate the subject. However, the range is limited and several word choices or collocations make the description imprecise, such as “the dam was open,” “generates electricity from that speed flow,” and “the water which are not used as electricity.” Repetition of “water,” “generator” and “after that” also limits flexibility. Spelling errors in words such as “reservior” and “biginning” are noticeable. Aim to use accurate process terms and natural combinations—for example, water “flows through” turbines and electricity is “transmitted to” the grid. More precise vocabulary would make the stages easier to understand.

Grammatical Range and Accuracy: Band 5.0

You attempt both simple and complex sentences, including a contrast between daytime operation and nighttime pumping. However, complex sentences are often difficult to control, and errors sometimes make relationships between actions unclear. For example, “Overall, a huge amount of water came … and after that it pass” shifts tense and has an incorrect verb form; “the dam was open so the goes downward” is missing a clear subject; and “the water which are not used” has faulty agreement. Several sentences also run together without effective punctuation, particularly the long description beginning “In the biginning.” Use the present simple consistently for a process, check subject–verb agreement, and divide long sentences into shorter units. These changes would improve accuracy while retaining sentence variety.

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