Band 5.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.0 · Cambridge IELTS 19 · 2026-11-11

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 5.0)

The process diagram provided illustrates that how a fuel known as ethanol is prepared.

Overall, the process involve five important stages, begining with the harvest of trees and concluding with Ethanol. This process is cyclical and man-made.

The first stage Includes trees harvesting, after trees harvested then it is shifited to a machine for Pre-processing, afterward cellulose is obtained. In the next step Cellulose are further processed in a labortary.

In labortary, sugar is prepared, in next step a type of Microbes are added, which further form the Ethanol. When Ethanol which is also known as Biofuel is ready for use in transport. these vehices after oprea

AI examiner evaluation

Task Achievement / Task Response: Band 4.5

You identify the process as cyclical and describe several central stages, including pre-processing, cellulose, sugar, microbes and ethanol. However, the account is incomplete and contains important inaccuracies: the diagram begins with plants growing through sunlight and carbon dioxide, not with harvesting, and it shows ethanol being used by cars, trucks and aircraft before carbon dioxide returns to the plants. Your overview also says there are five stages and that the process concludes with ethanol, which misses this transport-and-recycling part of the cycle. The response is substantially below the required 150 words, leaving key stages and relationships unexplained. To improve, report the full sequence and give an accurate overview of both production and the carbon cycle.

Coherence and Cohesion: Band 5.5

The response has a basic progression through production: harvesting, pre-processing, cellulose, processing, sugars, microbes and ethanol. Sequencing expressions such as “In the next step” and “afterward” help the reader follow this part. However, the organisation is weakened by the very brief, unfinished final sentence (“these vehices after oprea”), which leaves the cycle unexplained, and by unclear links such as “When Ethanol which is also known as Biofuel is ready for use in transport.” Paragraphing is limited, and transitions are sometimes repetitive or awkward. Use a clear overview followed by a complete, ordered account, and connect each stage explicitly, including the return of carbon dioxide to plant growth.

Lexical Resource: Band 5.0

You use some relevant process vocabulary, including “pre-processing,” “cellulose,” “Microbes” and “Ethanol,” which helps communicate the subject. However, the range is limited, and several word choices or forms are inaccurate or imprecise: “trees harvesting” is less natural than “harvesting the trees,” while “sugar is prepared” does not clearly describe the diagram’s conversion to sugars. Spelling errors such as “shifited,” “labortary,” “vehices” and “oprea” also make parts difficult to understand. Aim for accurate process verbs and consistent technical terms, and proofread spelling. For example, describe materials as being “converted into” or “processed into” the next product.

Grammatical Range and Accuracy: Band 4.5

There is an attempt to use sequencing clauses and passive forms, as in “after trees harvested” and “Microbes are added,” but grammatical control is weak and errors frequently affect clarity. Examples include “the process involve,” “five important stages, begining,” “Cellulose are further processed,” and the incomplete construction “When Ethanol which is also known as Biofuel is ready for use in transport.” Sentence boundaries and capitalization are also inconsistent, particularly where “these” begins a new sentence after a full stop. Practise forming complete sentences with a clear subject and verb, and check agreement, articles and tense. A reliable pattern is: “After the trees are harvested, they are pre-processed.”

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