Band 5.5 IELTS Writing Task 1 Model Answer
Overall Band Score: 5.5 · Cambridge IELTS 19 · 2026-08-02
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 5.5)
The given Process Diagram shows the stages and the means of Ethanol (Biofule) production and Carbon Daioxide recycling.
Overall, Ethanol production processed by the main five steps which starts from natural energy and carbon dioxide from sun and air leading to plant growth ,Harvasting,Pre-processing,cellulose production and final step is prepared Biofule Ethanol staorage by adding sugers and microbes, further after distribution, the emission of carbon diaoxide by different means in air as recycling.
Ethanol production is required energy as sunlight and carbon dioxide which is used by plants and trees to grow and these plants then harvasted and send for pre processing,after pre processing it converted into cellulose which stored in labortories for specific time and temprature the converted into sugers and at the end step by adding microbes Ethanol prepared and distributed to the required places.
The carbon dioxide recycled by the different ways as vehicles gas emissions in to the air and again used for the ethanol production.
AI examiner evaluation
| Criterion | Band |
|---|---|
| Task Achievement / Task Response | 6.0 |
| Coherence and Cohesion | 5.5 |
| Lexical Resource | 5.5 |
| Grammatical Range and Accuracy | 5.5 |
| Overall | 5.5 |
Task Achievement / Task Response — Band 6.0
The response covers the main stages of the ethanol production process, including the recycling of carbon dioxide. However, the description is somewhat repetitive and lacks a clear, logical flow. While the main features are identified, the explanation of the process is occasionally confusing, such as the mention of 'cellulose production' and 'storing in laboratories,' which does not clearly reflect the typical stages of biofuel production shown in such diagrams. The overview is present but could be more concise and better integrated. To improve, focus on grouping the stages more logically (e.g., cultivation, processing, and distribution) rather than listing them in a single, long sentence.
Coherence and Cohesion — Band 5.5
The essay is divided into paragraphs, but the internal structure is weak. The second paragraph is a single, extremely long sentence that makes the information difficult to follow. Cohesive devices are used, but they are often mechanical or misused, such as the repetitive use of 'and' to connect clauses. There is a lack of clear progression between the stages of the process. To improve, use shorter sentences and a wider variety of linking words (e.g., 'subsequently,' 'following this,' 'as a result') to guide the reader through the stages of the diagram more effectively.
Lexical Resource — Band 5.5
The vocabulary is limited and contains several spelling errors, such as 'Biofule' (biofuel), 'Daioxide' (dioxide), 'Harvasting' (harvesting), 'labortories' (laboratories), and 'temprature' (temperature). These errors are frequent and occasionally distract the reader. While the student attempts to use topic-specific vocabulary like 'cellulose' and 'microbes,' the overall range is basic. To achieve a higher band, focus on accurate spelling and using more precise verbs to describe the process, such as 'converted,' 'extracted,' or 'transported,' rather than relying on general terms like 'processed' or 'prepared.'
Grammatical Range and Accuracy — Band 5.5
The response relies heavily on simple sentence structures, and there are frequent grammatical errors throughout. Issues include incorrect verb forms ('Ethanol production processed by'), missing articles ('in air'), and subject-verb agreement errors ('Ethanol production is required energy'). Punctuation is also problematic, with several run-on sentences and missing commas. The lack of complex sentence structures limits the grammatical range. To improve, practice using passive voice constructions, which are essential for describing processes, and ensure that basic subject-verb-object patterns are consistently accurate.
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