Line Graph

Band 6+: You should spend about 20 minutes on this task The given graph shows the nitrogen oxide emissions produced by four vehicles. Summarize the information by selecting and reporting the main features and making comparisons where relevant. You should write at least 150 words.

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Image for topic: You should spend about 20 minutes on this task The given graph shows the nitrogen oxide emissions produced by four vehicles. Summarize the information by selecting and reporting the main features and making comparisons where relevant. You should write at least 150 words.

Our system will evaluate the answer based on this AI-generated description.

The image presents a line graph showing nitrogen oxide emissions (g/km) at various speeds (kph) for diesel cars, petrol cars, lorries, and buses. Diesel cars range from 7 g/km to 8 g/km. Petrol cars start and end at 15 g/km, peaking at 16 g/km. Lorries start at 35 g/km, decrease to 30 g/km at 70 kph, then increase back to 36 g/km. Buses start at 42 g/km, dip to 38 g/km at 70 kph, then rise to 44 g/km. Speeds range from 10 kph to 130 kph in increments of 10 kph.

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

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The line graph illustrates the amount of nitrogen oxide emmisions produced by buses, petrol cars, diesel cars, and lorries.

Overall, while busses and lorries witnessed increases and decreases from 10 to 130 KPH, diesel cars and petrol cars remained unchanged.

The proportion of busses produced nitrogen oxide witnessed a dramatic drop from 40 to about 25 km between 20 and 60 speed. Afterwards, from 60 to 130 speed, the amount of nitrogen oxide hit a high of more than 40 km. In terms of lorries, there was a significant decline in the amount of nitrogen oxide from about 35 to 16 km between 10 and 90 KPH. Then, it experienced a growth to about 25 km.

On the other hand, diesel cars and petrol cars almost produced the same amount of nitrogen oxide emmisions and remained steady. While diesel cars accounted for 10 km, petrol cars made up 5 km.

Word Count: 150

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Overall Band Score

(+/- 0.5)

Vocabulary Complexity:
B1 - Intermediate
Using more sophisticated words could be beneficial.

Grammar Mistakes: N/A

Vocabulary Repetition:

nitrogen: 5

oxide: 5

amount: 4

petrol: 4

diesel: 4

produced: 3

about: 3

Try using synonyms for the above words

Task Response

The report identifies some main features but contains inaccuracies and some misinterpretations of the data. The description of the trends for buses and lorries is not entirely accurate, and the values provided for diesel and petrol car emissions are incorrect. The report also contains some awkward phrasing and inaccuracies in units (e.g., 'km' instead of 'g/km'). To improve, focus on accurately representing the data and using precise language.

Coherence & Cohesion

The report presents a general overview and attempts to highlight key trends, but the organization could be improved for better clarity. The flow between paragraphs is somewhat disjointed. Consider using more cohesive devices to link ideas and ensure a smoother transition between different sections of the graph's description. For example, you could start a new paragraph when shifting the focus from buses and lorries to diesel and petrol cars, clearly signaling the change in subject.

Lexical Resource

The vocabulary is adequate but could be more precise and varied. The repetition of phrases like 'amount of nitrogen oxide' can be reduced by using synonyms or rephrasing. For instance, instead of repeatedly saying 'amount of nitrogen oxide,' you could use terms like 'nitrogen oxide levels,' 'emissions,' or 'nitrogen oxide output.' Also, the units are not correct, it should be g/km instead of km. Boost vocabulary complexity to elevate the overall score.

Grammatical Range & Accuracy

The report contains grammatical errors and inaccuracies. For example, 'busses produced nitrogen oxide witnessed a dramatic drop' is grammatically incorrect. It should be rephrased for clarity and accuracy. Also, 'from 40 to about 25 km between 20 and 60 speed' is not precise; include the units (KPH). Pay closer attention to sentence structure, subject-verb agreement, and the correct use of prepositions to enhance grammatical accuracy.

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