Band 5.5 IELTS Writing Task 1 Model Answer

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

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 illustrates the production of electricity by using geothermal energy.

Overall, the main component that is used in this process is cold water and geothermal also play a big role for the production of electricity. The other main component is condenser that coverts water into steam and transferred to turbine and generator.

There are five steps in this process ,the first step is to store cold water into the container. The stored water then travelled 4.5 km down to the earth with the help of pump line to the injection well. The injection well helps water to inject into the thermal zone. Thermal zone play a big roll in this process ,which coverts cold water into hot.

The third process is the production well which helps to transfer the hot water into the condenser. Condenser converts hot water into steam and then send to the turbine. Steam helps turbine to generate magnetic field and then transferred to generator which helps to produce electricity.

AI examiner evaluation

Task Achievement / Task Response: Band 5.5

You identify the diagram as a process for producing electricity and include several central stages: cold water is sent down the injection well, heated underground, brought up through the production well, and used to produce steam that drives equipment. However, the overview is not sufficiently clear or accurate: saying the condenser “converts water into steam” is broadly relevant, but the key overall sequence and the turbine-generator relationship could be stated more precisely. Some details are misreported or unsupported, especially that the turbine generates a “magnetic field”; the diagram only shows steam powering the turbine and the turbine powering the generator. The five-step description also omits the generator’s role in producing electricity as a distinct final outcome. A more complete, factual summary of the stages would strengthen the response.

Coherence and Cohesion: Band 5.5

The response has a recognisable structure, with an introduction, an overview, and a paragraph describing the process in sequence. This gives the reader a basic route through the information. However, progression is not consistently clear: the overview repeats components without explaining their relationships, and the body moves from the production well to the condenser and turbine before adding an unclear statement about the magnetic field and generator. Sequencing language is limited, and the phrase “There are five steps” is followed by stages that are not clearly numbered or separated. Some linking is also awkward, as in “which coverts cold water into hot.” Organise the stages in distinct chronological order and use precise references to show what each component does.

Lexical Resource: Band 5.5

You use relevant process vocabulary, including “injection well,” “production well,” “geothermal zone,” “condenser,” and “turbine,” which helps communicate the subject. However, the range is limited and several choices are imprecise or repetitive. “Big role” is informal and vague for an academic process description, while “container” is less precise than the diagram’s water tank. “Pump line” and “thermal zone” do not accurately name the labelled components, and “magnetic field” introduces an unsupported technical detail. There are also noticeable spelling and word-form errors, such as “coverts” and “roll.” Aim for accurate process collocations and use the diagram’s labels consistently; this will make the description more precise without requiring unnecessarily complex vocabulary.

Grammatical Range and Accuracy: Band 5.0

The response communicates the general process using both simple sentences and some subordinate clauses, for example, “The stored water then travelled 4.5 km down to the earth with the help of pump line to the injection well.” However, grammatical control is inconsistent, and errors occur in several sentence patterns. Subject–verb agreement is missing in “geothermal also play” and “Thermal zone play”; the overview also has an unclear clause structure in “condenser that coverts water into steam and transferred to turbine and generator.” Articles and prepositions are sometimes omitted or awkward, and punctuation is unreliable, as in “process ,the first step.” The past tense “travelled” is also inconsistent with the present-tense process description. Practise accurate present-simple sequencing and check agreement, articles, and sentence boundaries.

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