Band 5.0 IELTS Writing Task 1 Model Answer
Overall Band Score: 5.0 · Cambridge IELTS 19 · 2026-09-22
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 chart provides an information about the production process of ethanol in step by step which is a main source to the vehicles.
Overall, while the process begins at plants and tress, continues with pre-processing as well as process and ends with adding microbs which give a final product ethanol.
To begin with, Plant and tress such as sugarcanes are cultivated has raw material to the production of ethanol. Plant and tress will absorb sunlight and carbon dioxide has energy. Next they will go under a harvesting process where raw material (sugar cane) gets separated from the grass of it. Pre-processing is the next process in which produces plenty of cellulose from the raw materials and then it goes in to processing where cellulose embeded with chemical and generates a pre-final product called sugar.
Furthermore, the sugar which is considered has pre-final product will get merged with some microbs. After all the process continues untill enthanol is produced. Produced ethonal is used by so many vehicles such as cars, trucks, areoplanes where they produce carbon dioxide which is an energy to plants and tress. And this process continues to get a fine ethonal product.
AI examiner evaluation
| Criterion | Band |
|---|---|
| Task Achievement / Task Response | 5.0 |
| Coherence and Cohesion | 5.0 |
| Lexical Resource | 5.0 |
| Grammatical Range and Accuracy | 5.0 |
| Overall | 5.0 |
Task Achievement / Task Response — Band 5.0
The response attempts to describe the process of ethanol production shown in the diagram. However, the overview is weak, consisting merely of a mechanical listing of steps without clearly identifying the cyclical nature of the process or the overall transformation from sunlight and plants to fuel and carbon dioxide. While the main stages—such as growing plants, harvesting, pre-processing, processing, and adding microbes—are mentioned, the details lack precision and clarity. For example, stating that 'pre-processing produces plenty of cellulose' and that processing generates 'sugar' captures some of the stages, but the explanation of the continuous carbon dioxide cycle is disjointed. Overall, the task is addressed only partially, as the progression and key features of the diagram are not fully and clearly developed.
Coherence and Cohesion — Band 5.0
The text is organized into paragraphs with a basic introduction, body, and conclusion, but the overall progression is difficult to follow. Cohesive devices are used awkwardly or repetitively, such as 'To begin with,' 'Next,' and 'Furthermore.' Paragraphing is poorly handled, with the body of the process crammed into dense, poorly demarcated sections. Additionally, referencing is frequently unclear; for instance, phrases like 'the process continues untill enthanol is produced' and 'And this process continues to get a fine ethonal product' create redundancies and disrupt the logical flow of ideas, reflecting Band 5 descriptors.
Lexical Resource — Band 5.0
The lexical range is limited and inadequate for a strong academic response. There are numerous awkward word choices, non-standard collocations, and spelling errors throughout the text, such as 'information' used with an indefinite article ('an information'), 'microbs' for microbes, 'enthanol' and 'ethonal' for ethanol, and 'areoplanes' for aeroplanes. The student also confuses prepositions and grammatical roles, writing 'has raw material' instead of 'as raw material' and 'considered has pre-final product'. While a few subject-specific terms like 'cultivated' and 'cellulose' are attempted, frequent lexical errors impede fluency and cause strain for the reader.
Grammatical Range and Accuracy — Band 5.0
The student relies on a limited range of sentence structures, and attempts at complex sentences frequently result in grammatical errors. There are persistent issues with subject-verb agreement, article use, and tense consistency, such as 'Plant and tress such as sugarcanes are cultivated has raw material' and 'Produced ethonal is used by so many vehicles... where they produce carbon dioxide which is an energy to plants and tress.' Punctuation is also weak, leading to run-on sentences like the opening paragraph. Because errors are frequent and occasionally cause difficulty in parsing the meaning, the response aligns with Band 5.
See this exact question answered at other band scores — the same prompt compared across bands.
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