Band 5.5 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.5 · Cambridge IELTS 12 · 2026-11-14

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 5.5)

The diagram dispalys how electricity can produced from generator using grothermal energy.

Overall, this process contains five main features, starts with pumping cold water down the ground and ends with spin of turbine to generator to produce electricity for various functions toward electric pole.

To began with, stored cold water that pumped down toward the injection well after travel of 4.5 kilo meter, than water move at geothermal zone that full of hot rocks which used to increase temprature of water and transfer at the production well.

Furthermore, the production well pumped up hot water to condenser and it use to convert water into steam. Finaly, than steam are use to spin turbine with this force generator can produces electricity, that used in various programs with help of electric wire pole.

AI examiner evaluation

Task Achievement / Task Response: Band 6.0

You identify the main stages in the correct order, from cold water entering the injection well to electricity being generated, and you include the important 4.5 km depth. The overview also captures the process’s start and end. However, some details are unclear or inaccurate: the water is heated as it passes through hot rocks, rather than the rocks being described as something that “increase temperature” without a clear subject, and the diagram shows steam powering the turbine, which drives the generator. The claim that electricity is used “for various functions/programs” is not shown. The response is also 19 words below the required minimum, so several stages receive limited explanation. Develop the overview and describe the conversion steps more precisely.

Coherence and Cohesion: Band 6.0

The response has a clear overall arrangement: an introduction, an overview, and two paragraphs describing the process in sequence. Connectors such as “To begin with” and “Furthermore” help signal progression, and the reader can generally follow the movement of water through the system. However, some linking is mechanical or confusing, especially “Finaly, than,” while the overview’s phrase “starts with … and ends with spin of turbine to generator” makes the final sequence difficult to follow. References such as “it” in “it use to convert water into steam” are also not fully clear. Use fewer, more accurate transitions and make each sentence’s subject explicit to improve the flow.

Lexical Resource: Band 5.5

You use relevant process vocabulary, including “injection well,” “production well,” “geothermal zone,” “condenser,” and “turbine,” which helps communicate the main stages. There are also attempts at more specific wording, such as “pumped up” and “transfer.” However, spelling errors (“dispalys,” “grothermal,” “temprature,” “Finaly”) and imprecise or unnatural combinations reduce accuracy. For example, “spin of turbine to generator” does not clearly express that steam turns the turbine and the turbine drives the generator; “electric pole” is also less suitable than “transmission pylon.” Aim for precise process verbs and check spelling, while retaining the useful technical terms you already use.

Grammatical Range and Accuracy: Band 5.0

You attempt both simple and more complex sentences, including a relative clause in “hot rocks which used to increase temprature” and a sequence joined with “after.” The main process is usually understandable, but some errors in sentence structure and verb forms make relationships unclear. Examples include “electricity can produced,” “water that pumped down,” and “generator can produces electricity”; these need forms such as “can be produced,” “water that is pumped down,” and “the generator can produce electricity.” There are also problems with articles and agreement, as in “spin turbine” and “steam are use.” Practise accurate passive constructions for describing processes and check subject–verb agreement, articles, and sentence boundaries.

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