Process Diagram

Band 7+: You should spend about 20 minutes on this task. 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.

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Image for topic: You should spend about 20 minutes on this task. 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.

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The image illustrates biofuel production depicting: plants/trees assimilating energy (sunlight + carbon dioxide); arrows indicate sequence of activities starting with plant growth to harvesting to preprocessing; carbon dioxide released during harvesting and preprocessing stages; multiple circular insets show enlarged stages; processing stage leads to cellulose, then sugars formation; microbes added to sugars produce ethanol; ethanol then involved in two separate transport segments each releasing carbon dioxide.

Given the complexity of the image, the above description may not be entirely accurate.

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The diagram illustrates the process how ethanol is produced and used by several means of transport.

Overall, the process consists of three distinct stages, beginning with the cultivation of plants and trees, undergoing industrial steps, and finishing with the production of ready biofuel – ethanol. Additionally, the process is a complex one, which involves chemical treatment and requires the use of special machines.

In the initial phase, plants and trees are grown and harvested by tractors before being transported to the area, where they are crushed and pre-processed. Next, these small pieces are turned into cellulose. Once going through a processing step with numerious kinds of chemicals being used, sugar is extracted from the cellulose.

Subsequently, the mixture of microbes and sugars result in ethanol’s production. Then, different types of vehicles, such as cars, vans, and airplanes run with this biofuel. Carbon footprints disposed by these transports, which are then combined with the sunlight, produce energy that maintains the cultivation of flora.

Word Count: 162

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Overall Band Score

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Vocabulary Complexity:
C2 - Complex
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Grammar Mistakes: N/A

Vocabulary Repetition:

process: 3

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Task Response

The report covers the main stages of ethanol production, but there could be more specific details and comparisons to enhance the summary. To improve, focus on providing more precise information about the industrial processes and the types of transport involved. Also, ensure that all key features are addressed with sufficient detail.

Coherence & Cohesion

The report generally flows well, with a clear introduction, body, and conclusion. The organization of the information into stages is logical and easy to follow. However, transitions between some sentences and paragraphs could be smoother to enhance the overall coherence. For example, the transition between the second and third paragraphs could be improved by explicitly linking the 'industrial steps' mentioned in the overview to the 'initial phase' described in the subsequent paragraph. Also, avoid abrupt jumps in ideas.

Lexical Resource

The report demonstrates a sufficient range of vocabulary to describe the process of ethanol production. Terms like 'cultivation,' 'industrial steps,' 'pre-processed,' 'cellulose,' and 'microbes' are used appropriately. However, there's room to enhance the sophistication and precision of the language. For instance, instead of 'small pieces,' more specific terms related to biomass processing could be used. Also, consider using synonyms to avoid repetition and demonstrate a wider lexical range.

Grammatical Range & Accuracy

The report demonstrates a good command of grammar, with a variety of sentence structures used. There are a few grammatical errors and phrasing issues, but they do not significantly impede understanding. Pay close attention to verb tense consistency (e.g., 'are grown and harvested' followed by 'being transported') and subject-verb agreement. Also, ensure that the use of articles (a, an, the) is accurate throughout the report. For example, 'the process how ethanol is produced' could be rephrased for better grammatical accuracy.

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