Band 5.0 IELTS Writing Task 1 Model Answer
Overall Band Score: 5.0 · Cambridge IELTS 19 · 2026-08-06
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 given image illustrates process of making biofuel also known as Ethanol by using the vegetation At a glance, this process includes microbes for making fuel.
To begin with, as source of material the process require Plants and mature trees after getting plant the second phase is harvesting, the harvesting leads to Pre-processing in the pre-processing the harvested raw material convert into tiny crumbs. This crumbs now release the cellulose, the cellulose is cell membrane and nucleus of plant, This cellulose now in laboratory processing phase. After the Lab process the liquid mix with special bacteria and this gives the Ethanol.
To sum up, this process show how the Eth
AI examiner evaluation
| Criterion | Band |
|---|---|
| Task Achievement / Task Response | 4.0 |
| Coherence and Cohesion | 5.0 |
| Lexical Resource | 5.0 |
| Grammatical Range and Accuracy | 5.0 |
| Overall | 5.0 |
Task Achievement / Task Response — Band 4.0
The response fails to meet the minimum word count requirement of 150 words, which significantly impacts the score. Furthermore, the summary is incomplete, as the text cuts off abruptly at the end. While the student identifies the main stages of the process, such as harvesting and pre-processing, the description is underdeveloped and lacks the necessary detail to provide a comprehensive overview of the diagram. The failure to complete the task and the insufficient length prevent a higher score.
Coherence and Cohesion — Band 5.0
The response shows some attempt at logical sequencing, using transition signals like 'To begin with' and 'To sum up'. However, the paragraphing is ineffective, and the abrupt ending disrupts the flow of information. The use of cohesive devices is mechanical and sometimes inaccurate, such as the repetitive use of 'this' to start sentences. The lack of a clear, finished structure makes it difficult for the reader to follow the progression of the process.
Lexical Resource — Band 5.0
The vocabulary is limited and repetitive. The student relies on basic terms like 'making', 'process', and 'material'. There are some attempts at technical vocabulary, such as 'cellulose' and 'microbes', but these are not always used with precision. The word choice is often simplistic, and the lack of variety in phrasing hinders the ability to describe the technical process effectively. More precise verbs and nouns related to industrial processes are needed.
Grammatical Range and Accuracy — Band 5.0
The response contains frequent grammatical errors, including issues with articles ('the process require Plants'), subject-verb agreement, and punctuation. Sentence structures are mostly simple or contain errors when attempting complexity, such as comma splices ('This crumbs now release the cellulose, the cellulose is cell membrane...'). These errors are frequent and occasionally impede the clarity of the description. A wider range of complex structures is required to demonstrate control over English grammar.
See this exact question answered at other band scores — the same prompt compared across bands.
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