Band 5.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.0 · Cambridge IELTS 19 · 2026-09-04

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 provided diagram illustrates the process of genarating a biofuel which called ethanol.

Overall, producing ethanol is quite difficult and long-term methods. This process need approximately 8 steps to completed. This production begin for absorve sunlight and carbon dioxide for plantation and end with added microbes.

To begin with, making ethanol process is a circle graph, the plantation need sunlight and carbon dioxide for grown then its harvested my a maching. In this steps the harvested plants are beigh pre-processing by a machine and turned into cellulose. In five steps, the cellulose are processed by making camicals, then its turned in sugars canes. More specifically, after sugar produced microbes added in maked sugar and make ethanol. New geranate ethanol are used in several transports system like cars, trucks and so on. Furthermore, those transports used the ethanol and created carbon dioxide in our atmosphere.

In conclusion, it can be stated that the bioduel production is a consistent circle which started form using carbon dioxide and ends with creating carbon dioxide.

AI examiner evaluation

Task Achievement / Task Response — Band 5.0

The response provides a basic overview of the ethanol production process, identifying the start and end points. However, the description of the steps is often inaccurate or confusing. For example, the text mentions 'cellulose are processed by making camicals, then its turned in sugars canes', which misinterprets the technical stages shown in the diagram. The summary of the process is somewhat disjointed, and the explanation of the cycle lacks the precision required for a high band. While the main features are mentioned, the lack of clarity in describing the specific stages of the transformation process prevents a higher score.

Coherence and Cohesion — Band 5.0

The essay is organised into paragraphs, which helps the reader follow the structure. However, the use of cohesive devices is often mechanical or inaccurate, such as 'In this steps' or 'In five steps', which do not logically connect the information. The progression of ideas is sometimes hindered by awkward phrasing, making it difficult to follow the sequence of the production cycle. While there is an attempt to use linking words like 'Furthermore' and 'In conclusion', the overall flow is frequently interrupted by grammatical errors and unclear referencing.

Lexical Resource — Band 5.0

The vocabulary is limited and contains several errors that occasionally impede communication. There are frequent spelling mistakes, such as 'genarating', 'absorve', 'maching', 'beigh', 'camicals', and 'geranate'. The word choices are often imprecise, such as 'circle graph' to describe a process cycle or 'transport system' instead of 'vehicles'. The range of vocabulary is insufficient to describe the technical process accurately, and the persistent spelling errors demonstrate a lack of control over basic lexical items.

Grammatical Range and Accuracy — Band 5.0

The response relies on a mix of simple and attempted complex sentences, but the accuracy is low. There are frequent errors in subject-verb agreement ('This process need', 'cellulose are processed'), verb tense ('production begin', 'transports used'), and word order. Punctuation is also inconsistent. Many sentences are grammatically flawed, which forces the reader to re-read to understand the intended meaning. The lack of control over basic grammatical structures significantly limits the score in this criterion.

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