Band 5.5 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.5 · Cambridge IELTS 19 · 2026-10-27

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 5.5)

The diagram illustrace the process of how biomass-deeived fule is produced. What are the steps involved in extracting, what's the purpose for extraction of ethonal, and how it's impact the surroundings.

In general, this process includes various steps like harvesting,pre-processing, cellulose,processing,sugars and microbes are added. It is usend for vairous purpose especially for transportation and effects of using it.

Firstly, tress are grown which is a slow process as it take lot of time to grow taking care of them is extremly importand.Energy is the main source for them it includes sunlight and carbon dioxide. The plants are then cut down and small plants are harvested using machines. The plants which are cut down are then pre processed into small pieces hence celloulose are produced.

In celloulose are now taken to labs for processing they are reacted with cemicals due to which suger is formed. Aicrobs are added to the suger formed

And hence the ethonal is ready and it is transported to fuel station from where every one will fule up their vehicles as it is the main source of transportation carbon dioxide is prodeced in air and hence the same carbon dioxide is help in growing plants as a source of energy to them.

AI examiner evaluation

Task Achievement / Task Response: Band 5.5

You identify several central stages, including harvesting, pre-processing, cellulose, processing, sugars and the addition of microbes, and you recognise the cycle linking carbon dioxide from transport back to plant growth. This gives the reader a relevant account of the process. However, the overview is not clearly separated from the details, and some information is inaccurate or unsupported: the diagram does not show plants being cut into small pieces, chemicals being used, or ethanol being taken to fuel stations. It also shows ethanol being used by cars, trucks and aeroplanes, which could be stated directly. To make the response more complete, describe the stages in order using only what the diagram shows, and summarise the cycle clearly in the overview.

Coherence and Cohesion: Band 5.5

The response has a basic sequence, moving from plant growth through processing to ethanol use and carbon dioxide returning to plants. Paragraphing also separates an introduction, overview and process description. However, progression is weakened by the opening questions, which do not suit a process summary, and by abrupt links such as “And hence” and “In celloulose are now taken to labs.” Some stages are crowded into long sentences, while the final sentence combines transport, fuel stations and the carbon cycle without clear transitions. Use one paragraph for the overview and then follow the diagram stage by stage. Clear connectors such as “Next,” “After this,” and “Finally” would make the sequence easier to follow.

Lexical Resource: Band 5.0

You attempt relevant process vocabulary, including “harvesting,” “pre-processed,” “cellulose,” “processing,” “microbes” and “carbon dioxide.” These terms help communicate the main stages. However, spelling errors are frequent, including “illustrace,” “biomass-deeived,” “ethonal,” “celloulose” and “prodeced,” and some word choices are inaccurate or informal. “Extracting” and “fuel station” do not describe the diagram’s stages precisely, while “small plants are harvested” changes the meaning. The range is therefore limited and errors sometimes make the reader work to understand the intended meaning. Check technical terms carefully and choose neutral process language, such as “is converted into” or “is used as fuel.”

Grammatical Range and Accuracy: Band 5.0

You attempt both simple and more extended sentence forms, for example, “The plants are then cut down” and the sentence linking carbon dioxide with plant growth. However, many sentences contain errors in verb forms, agreement, articles or sentence boundaries. Examples include “what are the steps involved … and how it's impact,” “as it take lot of time,” and “Aicrobs are added to the suger formed / And hence the ethonal is ready.” The long sentence beginning “Firstly” also joins several ideas without effective punctuation. These recurring problems can make relationships between stages unclear. Build accuracy with short, complete sentences first, then add subordinate clauses carefully; check subject–verb agreement, tense consistency and punctuation when editing.

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

Browse more IELTS Writing model answers or get your own writing scored by the same AI examiner.