Band 5.0 IELTS Writing Task 1 Model Answer
Overall Band Score: 5.0 · Cambridge IELTS 19 · 2026-09-16
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 of converting biofuel into ethanol.
Altogether, it involves different steps. The primary steps are harvesting, processind and distributing to different transports.
The plants and trees are grown on the land and they took sunlight and carbondioxide from the atmosphere. When the crops are riped the process of harvesting occured. The Crops are gown through different machines and they breakdown into fiborous called as cellulose. After that, cellulose are transported to various laborities and factories where they used chemicals and they formed the sugars chains. Furthermore, they added microbes that formed the ethanol.
When the ethanol is formed. It is distributed to vehicals, airplanes and trucks etc. Which is used by the indiviuals to travel and transport goods from one place to another. When these vehicals utilized the ethanol they made polluted gases that are not benefical for our environment such as carbon dioxide. These gases are again used as the energy.
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 student attempts to describe the biofuel production process, but misinterprets the fundamental topic in the opening sentence by stating 'converting biofuel into ethanol', whereas the diagram illustrates how ethanol is produced from plants and trees. While the response identifies several key stages such as harvesting, processing, adding microbes, and final distribution to transport, the description is somewhat superficial and contains inaccuracies regarding the cycle (e.g., stating that polluted gases are 'again used as the energy' rather than absorbed by growing plants). The overview is limited. Overall, the task is addressed only partially, warranting a Band 5.0.
Coherence and Cohesion — Band 5.0
The response shows some organisation with an introduction, body, and conclusion, but lacks clear overall progression. The paragraphing is rudimentary, and cohesive devices are frequently mechanical or inaccurate (e.g., starting consecutive sentences with 'When' and 'After that'). Referencing is also weak in places, such as 'Furthermore, they added microbes' where the subject 'they' is unclear. While the sequence of steps is generally followed, the connections between ideas feel disjointed and repetitive, resulting in a Band 5.0 for coherence and cohesion.
Lexical Resource — Band 5.0
The lexical range is limited and adequate only for basic communication. The student attempts some less common vocabulary related to the prompt, such as 'fiborous', 'cellulose', and 'microbes', but these are frequently misspelled or misused (e.g., 'processind', 'riped', 'vehicals', 'indiviuals'). There are also notable word choice errors, such as 'polluted gases' instead of greenhouse gases or carbon dioxide emissions. Although the vocabulary is sufficient to convey the general topic, frequent errors in spelling and word formation restrict the score to Band 5.0.
Grammatical Range and Accuracy — Band 5.0
The response features a mix of simple and complex sentence forms, but attempts at complex structures are frequently faulty. There are numerous grammatical errors throughout the text, including tense inconsistencies (e.g., 'they took sunlight', 'crops are gown'), incorrect subject-verb agreement (e.g., 'cellulose are transported'), and run-on sentences punctuated incorrectly (e.g., 'When the ethanol is formed. It is distributed...'). These errors cause some difficulty for the reader and demonstrate a lack of firm control over basic grammatical structures, placing the response at Band 5.0.
See this exact question answered at other band scores — the same prompt compared across bands.
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