Band 5.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.0 · Cambridge IELTS 19 · 2026-08-25

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 diagram illustrate the production of biofuel which is also called ethanol. Plant and trees grows in sunlight and consume carbon dioxide ,which is the natural process of plant life called photosynthesis. After that, farmer harvested those trees and take them for pre-processing, in this way they use the fruit of plants and the trunk and branches use as a residue of this process make cellulose, which take to laboratories for some chemical reaction, this process called processing and create sugar from it. when the sugae spoil from its original form then microbes added in sugar they make ethanol.

Ethanol is very useful product in daily life, without this modern life is just look impossible to run. Ethanol mostly uses in transportation such as cars, trucks and aeroplanes. The consumption of ethanol create lots of carbon dioxide which again used in plant growth. So, this process is so on again and again.

AI examiner evaluation

Task Achievement / Task Response — Band 5.0

The response attempts to describe the process, but it fails to clearly identify and report the main features of the diagram. The description of the stages is somewhat confused, particularly the transition from 'pre-processing' to 'processing'. The student includes irrelevant personal commentary in the second paragraph ('Ethanol is very useful... modern life is just look impossible'), which is not required for an Academic Task 1 report. The task requires an objective summary of the visual information provided, not an essay on the importance of ethanol. Consequently, the key stages of the cycle are not clearly highlighted or compared, leading to an under-developed response.

Coherence and Cohesion — Band 5.5

The response is organized into two paragraphs, but the logical flow is weak. While there is some attempt at sequencing using words like 'After that' and 'when', the connection between ideas is often mechanical or unclear. The transition between the description of the process and the commentary on the utility of ethanol is abrupt and lacks a cohesive link. The use of referencing is occasionally confusing, such as the phrase 'this process is so on again and again', which does not effectively summarize the cyclical nature of the diagram.

Lexical Resource — Band 5.0

The vocabulary is limited and repetitive. There are several inaccuracies in word choice and spelling, such as 'sugae' instead of 'sugar' and 'grows' instead of 'grow'. The student relies on basic vocabulary and struggles to use precise terminology related to industrial processes (e.g., 'take them for pre-processing', 'spoil from its original form'). While the meaning is generally conveyed, the range is insufficient to demonstrate the flexibility required for higher bands. More precise verbs and technical nouns related to the diagram would improve the clarity and sophistication of the report.

Grammatical Range and Accuracy — Band 5.0

The response contains frequent grammatical errors that occasionally impede the reader's understanding. There are issues with subject-verb agreement ('Plant and trees grows'), article usage, and sentence structure. Many sentences are run-on or lack proper punctuation, such as '...carbon dioxide ,which is the natural process...'. The range of structures is limited, consisting mostly of simple or poorly connected compound sentences. There is a lack of complex sentence structures, and the errors in basic grammar are persistent throughout the text, which prevents the response from reaching a higher band.

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