Band 5.5 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.5 · Cambridge IELTS 19 · 2026-11-03

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 graph represents biofuel production full process to the fuel ethanol from starting.

overal, the visual data depects thats the procedure of making fuel. grown up the plants and trees to harvest and make material which required for making fuel. after harvest farmers sold to the company for pre-processing of material which makes the cellulose.

moreover cellulose going to processing to gain the sugar for making the fuel. sugar is main material to making the fuel. afterthat add microbes and ethanol is prepare then fuel is mixed up with ethanol and going to publics private vehicle. this graph illustrate this process thats makes fuel for people convineince. this fuel is used in truck,car,busses,and other machine which is run by the fuel .this is full process of making fuel and cars makes pollutions and carbon dioxide. carbon dioxide and sunlight helps toh give energy to the plants and tree and this cycle is run frequently .

AI examiner evaluation

Task Achievement / Task Response: Band 6.0

You cover the main stages of the diagram, from plant growth and harvesting through pre-processing, cellulose, processing, sugars, microbes and ethanol. You also identify the cycle’s return of carbon dioxide to support plant growth, giving the response a relevant overall account. However, some details are inaccurate or added without support: the diagram does not say farmers sell the material, that ethanol is mixed with fuel, or that buses are included. The transport stage is specifically shown as a car, truck and aeroplane. The overview is present, but the stages and the carbon cycle could be described more precisely, and the role of sunlight and carbon dioxide in plant growth should be clearly distinguished from emissions after fuel use.

Coherence and Cohesion: Band 5.5

The response follows a broadly sensible sequence, moving from plant growth to fuel production and then to transport and carbon dioxide returning to the plants. Connectors such as “moreover” and “afterthat” help signal progression, and the final sentence attempts to bring the cycle together. However, the ideas are presented in one continuous block, so the stages and overall cycle are not clearly separated. Some links are also difficult to follow, particularly “after harvest farmers sold to the company” and “fuel is mixed up with ethanol and going to publics private vehicle.” Use a short introduction and overview, followed by a clearly ordered process paragraph, and make each transition express the actual relationship between stages.

Lexical Resource: Band 5.0

You use several relevant process terms, including “pre-processing,” “cellulose,” “microbes,” “ethanol” and “carbon dioxide,” which help identify the diagram’s stages. However, the range is limited and some word choices or collocations make the description unclear, such as “fuel ethanol from starting,” “sugar is main material to making the fuel,” and “going to publics private vehicle.” There are also spelling and word-form errors, including “overal,” “depects,” “convineince” and “pollutions.” Aim for precise process vocabulary and standard collocations, for example, describe sugars as being converted into ethanol and the fuel as being used to power vehicles. Avoid adding vague phrases such as “other machine” when the diagram gives specific examples.

Grammatical Range and Accuracy: Band 4.5

You attempt to connect stages in longer sentences, and the sequence can generally be understood. However, sentence structures are often incomplete or inaccurately formed, and errors sometimes make relationships between steps unclear. For example, “grown up the plants and trees to harvest” lacks a clear subject and verb structure, while “afterthat add microbes and ethanol is prepare” shifts awkwardly between an imperative and a passive construction. There are also problems with articles, agreement and verb forms in “sugar is main material” and “this cycle is run frequently.” Use complete sentences with a consistent present simple or passive form, such as “The plants are harvested” and “Microbes are added to the sugars.” Check sentence boundaries and punctuation as well.

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