the diagram below shows the production of electricity using a system called Ocean thermal energy conversion.

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The diagram shows the process of producing

electricity

Use synonyms

by using a system called Ocean Thermal Energy Conversion (OTEC).

Overall

Linking Words

this

Linking Words

system uses warm and cold

seawater

Use synonyms

to create

electricity

Use synonyms

and

also

Linking Words

produces drinking

water

Use synonyms

as a result

Linking Words

. The process has several stages , including evaporation,

electricity

Use synonyms

generation and condensation.

First,

Linking Words

warm

seawater

Use synonyms

from the ocean is changed into

water

Use synonyms

vapour

Use synonyms

by using solar energy.

This

Linking Words

warm

water

Use synonyms

enters an evacuated evaporation chamber, where the salt is removed , and fresh

water

Use synonyms

vapour

Use synonyms

is created. The

vapour

Use synonyms

then

Linking Words

moves to a turbine, which is used to generate

electricity

Use synonyms

. After that, the

water

Use synonyms

vapour

Use synonyms

goes through a chamber where it is condensed into pure

water

Use synonyms

. The cold

seawater

Use synonyms

, which is taken from around 1000 metres below the surface, helps

this

Linking Words

process happen. The temperature of the cold

water

Use synonyms

is about 5°C,

while

Linking Words

the warm

seawater

Use synonyms

is around 29°C.

Finally

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, the condensed

water

Use synonyms

becomes drinking

water

Use synonyms

, and the remaining salt

water

Use synonyms

is released back into the ocean as waste.

Overall

Linking Words

, OTEC is a useful method because it can produce

electricity

Use synonyms

and fresh

water

Use synonyms

at the same time.

munvinder1265

Jun 22, 2026

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Linking words: Don't use the same linking words: "overall".

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Vocabulary: Rephrase your introduction. Words match: 83%.

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Vocabulary: Replace the words electricity, seawater, water, vapour with synonyms.

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Vocabulary: Rephrase the word "shows" in your introduction.

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Vocabulary: Rephrase the word "undefined" in your introduction.

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Vocabulary: Only 6 basic words for charts were used.

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Vocabulary: The word "around" was used 2 times.

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Vocabulary: Use several vocabularies to present the data in the second paragraph.

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Vocabulary: Use several vocabularies to present the data in the fifth paragraph.

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8
Linking words
meeting the goal of 7 or more
4
Word repetition
meeting the goal of 3 or fewer
0
Grammar mistakes
detected issues

0123456789.0505

Overall Band Score

Coherence and Cohesion: 8.0

Logical structure

Single idea per paragraph

Introduction & conclusion present

Accurate linking words

Variety in linking words

Lexical resource: 4.0

Varied vocabulary

Accurate spelling & word formation

Grammatical Range: 9.0

Mix of complex & simple sentences

Clear and correct grammar

Task Achievement: 9.0

Complete response

Suitable writing tone

Appropriate word count

5 paragraphs

184 words

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Topic Vocabulary:

surface water
deep seawater
warm water
cold water
temperature difference
evaporator
condenser
turbine
generator
electricity
liquid
gas
turn into
flow through
pump up
cool down
heat up
closed cycle
produce power
continuous process

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the diagram below shows the production of electricity using a system called Ocean thermal energy conversion.

Some people think that using mobile phones and computers has a negative effect on young people's reading and writing skills. To what extent do you agree or disagree?

People from poor and rural backgrounds find it difficult to get a university education. Some people think that government should make it easier for them to enter universities. To what extent do you agree or disagree with this opinion.

Environment protection is the responsbility of politicians, not individuals as individuals can do too little. To what extent do you agree or disagree?

Opinion essay questions: “prevention is better than cure”. Researching and treating diseases is too costly so it would be better to invest in preventative measures. To what extent do you agree?