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 when sunlight and carbon dioxide, plants and trees get energy for growing with the help of various kinds of energy resources plants are growing. After that, they are harvested and do pre-process on plants and trees which are converted into cellulose after pre-processing. Then, they are moved in factories for further processing.
In factories, from the cellulose, sugars are added in petrol and other things also. Also, microbes are added in sugars and the final output is know as ethanol. Additionally, In the factory various kinds of chemicals are added and after ethanol is ready for use. It is used in cars, trucks, Aeroplanes and many more others transportation vehicles, which modes of transportation spread the carbon dioxide in the 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 the cycle process, which starts from consuming energy by plants and trees and ends with the use of ethanol by different modes of transport.
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 process, but the description is often inaccurate or lacks the necessary technical precision required for a process diagram. For example, the text states that 'sugars are added in petrol', which is a misinterpretation of the diagram. Furthermore, the explanation of the cycle is somewhat confused, and the mention of 'various kinds of chemicals' is vague. To improve, you must focus on accurately reporting the specific steps shown in the visual, such as the fermentation and distillation stages, rather than making general assumptions. The overview is present but could be more clearly linked to the specific stages of the production cycle.
Coherence and Cohesion — Band 6.5
The response is organised into paragraphs, which helps the reader follow the structure. However, the use of cohesive devices is somewhat mechanical and repetitive, with frequent use of 'also' and 'and'. The progression of ideas is occasionally disjointed, particularly in the transition between the factory processing and the final usage. While the overall arrangement is logical, the referencing is sometimes unclear, such as in the sentence 'which modes of transportation spread the carbon dioxide', where the connection to the previous clause is slightly awkward. More varied linking words would improve the flow.
Lexical Resource — Band 6.0
The vocabulary is generally adequate for the task but lacks the precision needed for a higher band. There is some repetition of basic terms like 'plants', 'trees', and 'process'. Some word choices are inaccurate or unnatural, such as 'do pre-process on plants' and 'the final output is know as ethanol'. There is an attempt to use some topic-specific vocabulary, but it is often used incorrectly or in a way that obscures the meaning. To reach a higher band, you should focus on using more precise verbs and nouns related to industrial processes, such as 'harvested', 'fermented', or 'distilled'.
Grammatical Range and Accuracy — Band 6.0
The response uses a mix of simple and complex sentence structures. However, there are frequent grammatical errors that occasionally impede clarity, such as 'which modes of transportation spread the carbon dioxide in the environment and this carbon dioxide is used by plants'. There are also issues with article usage ('the biofuel production') and verb forms ('is know as'). While the meaning is generally understandable, the frequency of these errors prevents the writing from reaching a higher band. Focusing on subject-verb agreement and the correct use of relative clauses would be beneficial for your future writing.
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