Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 19 · 2026-11-13

IELTS Writing Task 1 question

 

The diagram below shows how a biofuel called ethanol is produced.

Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

Student answer (Band 6.0)

The diagram illustrates the process of how a biofuel called ethanole is produced.

Overall, it is a recycling process in which plants are first harvested and then cut them in a machine to make cellulose which are tested in labortaries to make natural ethanol which is used in vehicles. In addition vehicles made carbon dioxide which necessary for plants and trees.

Looking in detail, First the process is started with the harvesting of plants and trees. After harvesting the next step is pre-processing in which cellulose are made. After that put cellulose in labortaries for processing to make sugars particles In which microbes are added to make ethanol. Furthermore, ethanol is used in vehicles such as Air Planes, Trucks and cars which produce carbon dioxide. As a result the carbon dioxide is recycled and the combination of energy, sunlight and carbon dioxide is created which is necessary for plants and trees growth, and the process is work in shape of lifecycle.

AI examiner evaluation

Task Achievement / Task Response: Band 6.5

You identify the diagram as a cyclical process and cover its main stages, including pre-processing, cellulose, processing, sugars, microbes, ethanol, transport use and the return of carbon dioxide to plant growth. This gives the response a relevant overview and addresses the task. However, the account is not fully accurate: it begins with harvesting rather than explaining that sunlight and carbon dioxide enable plants and trees to grow before they are harvested. The claim that cellulose is “tested in laboratories” is not shown; the diagram indicates processing, and the carbon dioxide cycle is linked to emissions from vehicles. Your overview captures the cycle, but some stages and relationships need clearer, more precise reporting to make the account more complete.

Coherence and Cohesion: Band 6.0

The response has a recognisable structure: an introduction, an overview and a detailed paragraph, with the stages generally presented in sequence. Linking expressions such as “After that,” “Furthermore” and “As a result” help signal progression. However, cohesion is sometimes mechanical, and some references are unclear. For example, “which are tested in labortaries” does not clearly identify what is being tested, while “the combination of energy, sunlight and carbon dioxide is created” makes the cycle difficult to follow. The capitalisation after “First” and “particles In which” also interrupts the flow. Group the plant-growth and harvesting stages before describing conversion, then explain the vehicle emissions returning to plants in a direct final sentence.

Lexical Resource: Band 5.5

You use relevant process vocabulary, including “pre-processing,” “cellulose,” “microbes,” “ethanol” and “carbon dioxide,” so the reader can follow the general subject. There is also some attempt to vary wording with phrases such as “recycling process” and “lifecycle.” However, several choices are inaccurate or awkward for describing this diagram: “tested in labortaries” is not the process shown, “sugars particles” is an unnatural phrase, and “made carbon dioxide” is less precise than a suitable verb for emissions. Spelling errors such as “ethanole,” “labortaries” and “Air Planes” also reduce control. Aim for accurate process collocations and consistent spelling rather than adding unsupported technical detail.

Grammatical Range and Accuracy: Band 5.0

You attempt both simple and more extended sentences, including a conditional-style relative clause and a sentence explaining the cycle. However, control is limited, and errors in agreement, verb forms and sentence construction recur. For example, “plants are first harvested and then cut them” shifts from passive to active construction, while “cellulose which are made” has incorrect agreement. “In addition vehicles made carbon dioxide which necessary for plants” is missing grammatical elements, and “the process is work” uses an incorrect verb form. These errors sometimes make relationships between stages difficult to understand. Practise consistent passive forms for process descriptions, subject–verb agreement, and complete clauses; then check punctuation and capitalisation between sentences.

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