Band 5.5 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.5 · Cambridge IELTS 19 · 2026-10-28

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 illustrates the process of biofuel prduction and how ethanol is made, overall its a linear process consisting of 6 steps to make enthol from plants to producing biofeuel to vehicles.

Intitially at first stage energy of plants, trees is taken and made them harvest from a tractor than all that harvest crop is going in a machine for pre-processong after compleing it all the pre-process stuff is known as cellulose. Then that cellulose is gone into a laboratory for further process, then the process happened and it comes in the form of sugar from crops at the start to sugar at the end.

Lastly vital stuff is added known as microbes which will make the sugar+microbes into ethanol this is still not a final product lastly the ethanol is used for biofuel which is used to fuel every vehicle like, cars, planes, trucks etc to acually operate and move. Then these vehicles generate carbondioxide which is used for plants to grow for their energy step so it all goes for the first step of plants to start again.

AI examiner evaluation

Task Achievement / Task Response: Band 6.0

You cover the main stages, from plant growth and harvesting through pre-processing, cellulose, processing, sugars, microbes and ethanol, and you correctly describe carbon dioxide returning to support plant growth. This gives the reader a broadly accurate account of the cycle. However, the overview calls it “a linear process consisting of 6 steps,” which misses the diagram’s circular nature and understates the number of stages. Some details are also unclear or imprecise: energy is not taken from plants and trees; sunlight and carbon dioxide enable their growth, and the diagram shows ethanol being used by three transport types. Make the overview accurately identify the cycle, then describe the stages in their correct order with clearer links between them.

Coherence and Cohesion: Band 6.0

The response has a generally understandable progression: the first paragraph introduces the process, the next describes the early stages, and the final paragraph explains ethanol use and the return of carbon dioxide. Sequencing phrases such as “Initially” and “Lastly” help guide the reader. However, the organisation is weakened by the inaccurate “linear process” overview and by long, crowded sentences that combine several stages without clear boundaries. For example, the sentence beginning “Intitially at first stage” moves from energy to harvesting, pre-processing and cellulose in one run-on structure. Use one paragraph for the overview and separate the production stages from the transport-and-recycling loop, with clear sentence breaks and precise references.

Lexical Resource: Band 5.0

You use several relevant process terms, including “pre-processing,” “cellulose,” “microbes,” “ethanol” and “carbon dioxide,” so the topic is recognisable. However, vocabulary control is limited by repeated general words such as “stuff,” “process” and “used,” as well as inaccurate or informal combinations such as “the process happened” and “vital stuff.” Spelling errors—including “prduction,” “enthol” and “carbondioxide”—also make the description less polished and can slow the reader. Choose precise process verbs and nouns, and check technical terms carefully. For instance, describe material as being “converted into sugars” rather than saying it “comes in the form of sugar.”

Grammatical Range and Accuracy: Band 5.0

You attempt both simple and more extended sentences, and the overall sequence can usually be followed. However, several sentences contain faulty clause structure or verb forms. In “energy of plants, trees is taken and made them harvest,” the subject and actions are not expressed in a grammatical way; “the cellulose is gone into a laboratory” also uses an incorrect passive construction. The sentence beginning “Then that cellulose” runs several clauses together, with unclear punctuation and tense control. Use straightforward passive forms for process descriptions, such as “The harvested material is pre-processed” and “Cellulose is then processed into sugars.” Check articles, sentence boundaries and verb agreement as you revise.

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