Band 5.0 IELTS Writing Task 1 Model Answer

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

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 process diagram illustrate the information of biofuel production process the information are given through process

overview, a glance at the process reveals the information that begin with energy from sunlight and carbon dioxide and end through relies carbon dioxide in the atmosphere through vehicles.

to start with, trees and plants are growing by energy and carbon dioxide and crops harvesting by farmers then ready to the next process, crops go to the pre processing plants where take different crops cellulose for the processing.

after processing of cellulose ready for made sugars ,finally its become sugars in the next step, microbes added in the sugars lastly, it is ready use ethanol for various purpose. in the end, ethanol ready to use in the every type of vehicle moreover, carbon dioxides release in the atmosphere from cars, truck, air plane and commercial vehicle, and many more lastly, crops grow by carbon dioxide

AI examiner evaluation

Task Achievement / Task Response — Band 5.0

The response covers the main stages of the ethanol production process, from the growth of crops to the final use in vehicles. However, the description is quite superficial and lacks the precision required for an Academic Task 1 response. For example, the explanation of the chemical transformation (cellulose to sugar) is vague, and the cyclical nature of the process (carbon dioxide being reused by plants) is mentioned but not clearly integrated into the overall summary. The response identifies the main features but fails to provide a clear, analytical overview of the entire cycle, resulting in a somewhat disjointed summary.

Coherence and Cohesion — Band 5.0

The essay is divided into paragraphs, which is a positive step. However, the logical flow is weak. The use of cohesive devices is mechanical and often inaccurate, such as the repetitive use of 'then', 'finally', and 'lastly'. The transition between the production stages and the final usage is abrupt. Furthermore, the referencing is sometimes unclear, making it difficult for the reader to follow the progression of the process. The lack of sophisticated linking words means the text feels like a list of steps rather than a cohesive report.

Lexical Resource — Band 5.0

The vocabulary is limited and repetitive. There is a reliance on basic verbs like 'growing', 'take', 'made', and 'become'. The student struggles with accurate terminology for the process, such as 'ready to the next process' or 'ready use ethanol'. There are also significant issues with word choice and collocation, such as 'relies carbon dioxide' (likely meant 'releases') and 'every type of vehicle'. The range is insufficient to convey the technical nature of the diagram with any degree of precision or sophistication.

Grammatical Range and Accuracy — Band 5.0

The grammar is characterized by frequent errors that often impede clarity. There are significant issues with subject-verb agreement ('the given process diagram illustrate'), article usage, and sentence structure. Many sentences are run-on or fragmented, such as 'crops harvesting by farmers then ready to the next process'. The use of complex structures is attempted but is almost always faulty, leading to confusion. Punctuation is also inconsistent, with missing commas and periods throughout the text. The control of basic grammar is not yet consistent enough for a higher band.

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