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Band 7+: The diagrams below show the design for a wave-energy machine and its location. Summaries the information by selecting and reporting the main features and make comparisons where relevant

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Image for topic: The diagrams below show the design for a wave-energy machine and its location. Summaries the information by selecting and reporting the main features and make comparisons where relevant

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The image contains two diagrams related to wave-energy machines. The first diagram shows a wave-energy machine's components and flow direction. It features an electricity generator at the top, connected to a turbine, with chambers below and air flow depicted through arrows. The bottom section shows water levels and the wave direction indicated with an arrow. The second diagram presents wave-energy machine location options based on wave size and installation costs. It depicts four quadrants with varying levels of wave size and installation costs. One quadrant shows large waves with high output and high installation costs, while the opposite shows small waves with low output and low installation costs, with wave-energy machines placed in between the two ends of the spectrum.

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

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Note: Both the topic and the answer were created by one of our users.

The figures reveal how a wave energy machine works and the ideal location for installation.

From the first diagram, we can see that the ups and downs of the wave’s water level produce strong air flow, which can spin the turbine. The air flows both from below and above the turbine as it rotates. The rotation of this turbine then gives energy to the electricity generator to work.

As shown in the second diagram, there are two location options for the machine. Those are locations with huge waves or locations with small waves. There are several considerations we need to take into account, such as electricity output and installation costs. If we choose to install the machine in a large wave area, it will produce a lot of electricity, yet the installation costs will be high. However, installation in the small wave area only needs lower installation costs as well as lower output.

In summary, a wave-energy machine is really dependent on the wave energy to produce electricity.

Word Count: 168

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Overall Band Score

(+/- 0.5)

Vocabulary Complexity:
C1 - Intricate
Strive to incorporate even richer and more precise language.

Grammar Mistakes: N/A

Vocabulary Repetition:

machine: 4

electricity: 4

installation: 4

energy: 3

produce: 3

turbine: 3

costs: 3

Try using synonyms for the above words

Task Response

The report adequately addresses the task, summarizing the main features of the wave-energy machine and its location. However, the comparisons between the location options could be more detailed and explicit.

Coherence & Cohesion

The report is well-organized and easy to follow, with each paragraph focusing on a specific aspect of the wave-energy machine. However, some cohesion devices could be used more effectively to link the paragraphs together.

Lexical Resource

The vocabulary is adequate, but there is some repetition (e.g., 'wave-energy machine' is repeated several times). More precise and varied vocabulary could be used to describe the machine's components and functions.

Grammatical Range & Accuracy

The grammar is generally accurate, with a good range of sentence structures used. However, there are some minor errors (e.g., 'the ups and downs of the wave's water level produce strong air flow' could be rephrased for better clarity).

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The diagrams below show the design for a wave-energy machine and its location. Summaries the information by selecting and reporting the main features and make comparisons where relevant

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Band 9

The diagrams below show the design for a wave-energy machine and its location. Summaries the information by selecting and reporting the main features and make comparisons where relevant

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The diagrams below show the design for a wave-energy machine and its location. Summaries the information by selecting and reporting the main features and make comparisons where relevant

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The diagrams below show the design for a wave-energy machine and its location. Summaries the information by selecting and reporting the main features and make comparisons where relevant

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The diagrams below show the design for a wave-energy machine and its location. Summaries the information by selecting and reporting the main features and make comparisons where relevant

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Band 7+: The diagrams below show the design for a wave-energy machine and its location. Summaries the information by selecting and reporting the main features and make comparisons where relevant

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Overall Band Score

Task Response

Coherence & Cohesion

Lexical Resource

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Answers On The Same Topic:

The diagrams below show the design for a wave-energy machine and its location. Summaries the information by selecting and reporting the main features and make comparisons where relevant

The diagrams below show the design for a wave-energy machine and its location. Summaries the information by selecting and reporting the main features and make comparisons where relevant

The diagrams below show the design for a wave-energy machine and its location. Summaries the information by selecting and reporting the main features and make comparisons where relevant

The diagrams below show the design for a wave-energy machine and its location. Summaries the information by selecting and reporting the main features and make comparisons where relevant

The diagrams below show the design for a wave-energy machine and its location. Summaries the information by selecting and reporting the main features and make comparisons where relevant

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