Band 6.0 IELTS Writing Task 1 Model Answer
Overall Band Score: 6.0 · Cambridge IELTS 19 · 2026-07-29
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 given image presents the information of the biofuel production which shows how ethanol is made. The whole process is divided into various stages.
According to the diagram, the process starts from through sunlight and carbon dioxide, plants and trees can get energy for growing with help of various kinds of energy resources plants are growing. After that, they are harvested and made pre-process on plants and trees which are converted in cellulose after pre-processing. Then, they are moved in factories for further process.
In factories, From the cellulose, sugars are added in petrol and other things. Also, Microbes are added in sugars and the final output is know as ethanol. Additionally, In factory various kinds of chemicals added and after ethanol is ready for uses. It is used in car, trucks, Aeroplan and many more others transportations vehicles, Which modes of transportation spread the carbon dioxide in environment and this carbon dioxide is used by plants and trees for getting energy as food.
Overall, the whole process of ethanol production is divided into various stages and it is kind of cycle process, which starts from consuming energy by plants and trees and end with the uses of ethanol by different modes of transportations.
AI examiner evaluation
| Criterion | Band |
|---|---|
| Task Achievement / Task Response | 6.0 |
| Coherence and Cohesion | 6.5 |
| Lexical Resource | 6.0 |
| Grammatical Range and Accuracy | 6.0 |
| Overall | 6.0 |
Task Achievement / Task Response — Band 6.0
The response covers the main stages of the ethanol production cycle, from the growth of plants to the final use in transport. However, the description of the process is somewhat inaccurate and lacks technical precision. For instance, the text claims 'sugars are added in petrol' and 'chemicals added', which misinterprets the diagram's flow. The summary of the cycle is present, but the explanation of the stages is underdeveloped and occasionally confusing. To improve, you should focus on accurately describing the transformation steps shown in the diagram, such as the conversion of cellulose into sugar via fermentation, rather than inventing steps that are not supported by the visual information.
Coherence and Cohesion — Band 6.5
The essay is organised into logical paragraphs, which helps the reader follow the progression of the cycle. However, the use of cohesive devices is often mechanical or repetitive, such as the frequent use of 'In factories' or 'Also'. Some transitions are awkward, such as 'Which modes of transportation spread the carbon dioxide', which creates a run-on sentence structure that disrupts the flow. While there is an overall attempt at a logical structure, the connections between sentences could be smoother and more varied to improve the readability of the report.
Lexical Resource — Band 6.0
The vocabulary is generally adequate for the task but lacks the precision required for a higher band. There are several instances of awkward word choice, such as 'made pre-process on plants' and 'final output is know as ethanol'. The range of vocabulary is limited, relying on basic verbs like 'added' and 'used' repeatedly. To achieve a higher score, you should aim to use more specific terminology related to industrial processes, such as 'fermentation', 'conversion', or 'by-product', and ensure that your collocations are natural and accurate.
Grammatical Range and Accuracy — Band 6.0
The response contains a mix of simple and complex sentence structures, but there are frequent grammatical errors that occasionally impede clarity. Issues include subject-verb agreement ('plants and trees can get energy... plants are growing'), incorrect preposition usage, and awkward phrasing ('the process starts from through sunlight'). Punctuation is also inconsistent, with unnecessary capitalisation in the middle of sentences (e.g., 'In factories, From the cellulose'). While the meaning is generally understandable, the high frequency of errors in basic grammar prevents the response from reaching a higher band.
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