Band 5.0 IELTS Writing Task 1 Model Answer
Overall Band Score: 5.0 · Cambridge IELTS 19 · 2026-08-13
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 5.0)
The diagram illustrates the process used to produce ethanol.
Overall, , the process of biofuel production consisted eight stages staring from harvesting trees and ending with addition microbes to produce biofuel.
Firstly, the plants grew by absorbs carbon dioxide ad water in the presence of sunlight the process called photosynthesis.
When the trees become matured they harvested and transported through lorry for pre processing where they cutted into small chips before added cellulose.
After this, the material transfrerred into lab where chemical process performed tp attain sugar molecule, then microorgansnims were added wihch react with sugar and produce the end finished product ethanol.This biofuel was deliverred pmpm where cars, lorries other transported material used to drived their vehicles and relaease crbon dioxide and again thi gas was consumed plant in the process ofphotosyntheisi.
AI examiner evaluation
| Criterion | Band |
|---|---|
| Task Achievement / Task Response | 5.0 |
| Coherence and Cohesion | 5.5 |
| Lexical Resource | 5.0 |
| Grammatical Range and Accuracy | 5.0 |
| Overall | 5.0 |
Task Achievement / Task Response — Band 5.0
The response fails to meet the minimum word count requirement of 150 words, which significantly impacts the task achievement score. While you have identified the main stages of the process, the description is quite brief and lacks detail in several areas. For example, the transition from the laboratory stage to the final product is rushed, and the explanation of the cycle is somewhat superficial. To improve, ensure you expand on each stage of the diagram, providing more descriptive detail about the actions and transformations occurring at each step. Because the response is under-length, it cannot be awarded a score higher than 5.0 for this criterion.
Coherence and Cohesion — Band 5.5
The essay is organized into a logical sequence, moving from the growth of plants to the final use of ethanol. However, the use of cohesive devices is somewhat mechanical and limited. Phrases like 'Firstly' and 'After this' are used, but the flow between sentences is occasionally disjointed. Paragraphing is also problematic, as the response is essentially one large block of text rather than distinct paragraphs for the introduction, overview, and body stages. Improving the use of linking words and creating clear paragraph breaks would significantly enhance the readability and structure of your writing.
Lexical Resource — Band 5.0
The vocabulary used is generally adequate to describe the process, but there are frequent spelling errors such as 'transfrerred', 'microorgansnims', 'wihch', and 'pmpm'. These errors, combined with some awkward phrasing like 'end finished product', indicate a limited control over word choice and spelling. To reach a higher band, you should focus on using more precise scientific terminology related to the process (e.g., 'fermentation' instead of 'chemical process') and ensure that your spelling is accurate. Expanding your range of vocabulary to include more varied verbs and nouns would also be beneficial.
Grammatical Range and Accuracy — Band 5.0
The response contains numerous grammatical errors that occasionally impede communication. There are frequent issues with verb forms and tenses, such as 'plants grew by absorbs', 'they cutted', and 'used to drived'. Additionally, there are missing articles and prepositions throughout the text. While you attempt some complex sentence structures, the high frequency of errors in basic grammar and sentence construction prevents a higher score. Focusing on subject-verb agreement and consistent tense usage will help improve your accuracy. You should also proofread your work to catch simple errors in word endings and sentence structure.
See this exact question answered at other band scores — the same prompt compared across bands.
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