Band 5.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.0 · Cambridge IELTS 19 · 2026-09-12

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 picture depicts the information about , how a biofuel called ethanol is produced.

It can be clearly seen that , production of biofuels and through biofuel how ethanol is produced. First of all, it begins from the plants and trees grow .which consumes carbon dioxide and after that , harvesting of crops with modern technology . Next production process is of pre-processing and it produced cellulose energy after that , it go through for processing with another type of chemicals after processing , it produced sugars .

Shifting towards the rest of the data , microbes are added which produced, Ethanol and it is used in transports. like car , buses, aeroplanes etcetera and these vehicles produced , carbon dioxide and this carbon dioxide consumed by the trees and plants .

Overall , so basically it is a process of recycling . Which contains the production of biofuels and biofuels convert into ethanol which is used in vehicles.

AI examiner evaluation

Task Achievement / Task Response — Band 5.0

The response attempts to summarise the diagram showing the production of ethanol, identifying major stages such as growing plants, harvesting, pre-processing, processing with chemicals, adding microbes, and final usage in transport vehicles. However, the coverage of the process is somewhat incomplete and lacks precision in reporting key data and relationships. For instance, phrases like 'production process is of pre-processing and it produced cellulose energy' are vague and fail to clearly report the mechanical or chemical steps depicted in the graphic. Furthermore, while the cyclical nature of the process involving carbon dioxide is noted, the explanation lacks the development and fully detailed overview expected for a higher band. Consequently, the response aligns best with Band 5, as it addresses the task only partially and key features are under-developed.

Coherence and Cohesion — Band 5.0

The response makes an attempt at logical organisation by breaking the text into introductory and sequential paragraphs using cohesive phrases like 'First of all', 'Next', and 'Shifting towards the rest of the data'. However, the overall progression is heavily disrupted by poor punctuation, fragmented sentence structures, and mechanical or awkward cohesive devices (e.g. orphan commas placed before conjunctions, such as 'depicts the information about , how'). Paragraphing is also somewhat arbitrary, separating closely linked parts of the continuous cycle into disjointed sections. Referencing is occasionally unclear, which forces the reader to work harder to follow the sequence of the process. Overall, this level of structural control and flawed cohesion corresponds to a Band 5 score.

Lexical Resource — Band 5.0

The vocabulary used is relatively basic and repetitive, relying heavily on standard terms directly derived from the prompt or common knowledge, such as 'plants', 'trees', 'crops', 'chemicals', 'sugars', and 'ethanol'. While there are attempts to introduce less common lexical items related to the topic (e.g. 'microbes', 'cellulose', 'transport'), these are frequently undermined by awkward word choice, collocation issues, and spelling or phrasing errors (e.g. 'cellulose energy', 'processed with another type of chemicals'). The range is minimally adequate for communicating the general topic, but frequent inaccuracies and limited flexibility restrict the score to a Band 5.

Grammatical Range and Accuracy — Band 5.0

The response displays a very limited range of grammatical structures, heavily relying on simple sentences or awkward, run-on complex structures that are frequently faulty. There are persistent, highly noticeable errors in punctuation and syntax, such as unnecessary spaces before commas (e.g. 'seen that , production') and incorrect subordination (e.g. 'plants and trees grow .which consumes carbon dioxide'). Tense consistency and clause structures are poorly controlled throughout the text, leading to frequent errors that cause noticeable difficulty for the reader and obscure the precise mechanics of the described process. These characteristics place the grammatical performance firmly at Band 5.

See this exact question answered at other band scores — the same prompt compared across bands.

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