The diagram below shows the production of electricity using a system called Ocean Thermal Energy Conversion (OTEC). Write a report for a university lecturer describing the information below.

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The given diagram illustrates how electricity can be created by using the Ocean Thermal Energy Conversion system (OTEC). The process not only shows how electricity is created, but it

also

Linking Words

shows how the by-products, which are drinking

water

Use synonyms

and

salt

Use synonyms

water

Use synonyms

Correct subject-verb agreement

are

show examples

created as well.

First,

Linking Words

the warm

sea

Correct your spelling

seawater

water

Use synonyms

at the surface of the ocean is converted into

water

Use synonyms

vapor

Change the spelling

vapour

show examples

by solar energy and evacuated to the evaporation

chamber

Use synonyms

, where the excess

salt

Use synonyms

is separated out. The remaining

water

Use synonyms

vapor

Change the spelling

vapour

show examples

then

Linking Words

led to turn the turbine in order to create electricity and continue to move down the pipe until it reaches the condensing

chamber

Use synonyms

. After the

water

Use synonyms

reaches the condensing

chamber

Use synonyms

, it condenses and turns into drinking

water

Use synonyms

with the help of cold

water

Use synonyms

from the bottom of the ocean

that is

Linking Words

connected to the pipes surrounding the condensing

chamber

Use synonyms

. The excess

salt

Use synonyms

from the first process is

then

Linking Words

fused with

this

Linking Words

cold

water

Use synonyms

and creates waste

Use synonyms

salt

Correct your spelling

saltwater

water

Use synonyms

j.pakjamsai

Apr 6, 2026

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Basic structure: Write more paragraphs.

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Basic structure: Add more body paragraphs.

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Basic structure: Write more paragraphs.

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Vocabulary: Rephrase your introduction. Words match: 77%.

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Vocabulary: Replace the words water, salt, chamber with synonyms.

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Vocabulary: Only 6 basic words for charts were used.

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

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

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5
Linking words
meeting the goal of 7 or more
3
Word repetition
meeting the goal of 3 or fewer
5
Grammar mistakes
detected issues

0123456789.0505

Overall Band Score

Coherence and Cohesion: 4.0

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: 5.0

Mix of complex & simple sentences

Clear and correct grammar

Task Achievement: 6.0

Complete response

Suitable writing tone

Appropriate word count

1 paragraphs

161 words

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Topic Vocabulary:

OTEC (Ocean Thermal Energy Conversion)
evaporator
ammonia
turbine
generator
condenser
closed-loop system
renewable energy
sustainable technology
temperature gradient
environmental impact
electricity production
deep seawater
surface seawater

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The diagram below shows the production of electricity using a system called Ocean Thermal Energy Conversion (OTEC). Write a report for a university lecturer describing the information below.

Longer life spans and improvements in the health of older people suggest that people over the age of sixty-five can continue to live full and active lives. In what ways can society benefit from the contribution that older people can make?

In some societies, the number of crimes committed by teenagers is growing. Some people think that regardless of age, teenagers who commit major crimes should receive adult punishment. To what extent do you agree?

Some people say governments should give priority to health care, while others believe that taxpayers’ money should be spent on other important priorities. Discuss both views and give your own opinion.

Some people think the government should pay for health care and education, but there is no agreement about whether it is the government’s responsibility. What is your opinion?

Successful sports professionals can earn a great deal more money than people in other important professions. Some people think this is fully justified while others think it is unfair. Discuss both these views and give your own opinion.