The diagram below shows how a central heating system in a house works. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

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The diagram describes how a

home

Check wording

home's

show examples

central heating by hot

water

Use synonyms

system works.

Overall

Linking Words

, the system mainly relies on converting the cold

water

Use synonyms

to hot

Check wording

water

show examples

and transferring it around the

house

Use synonyms

. To start with, cold

water

Use synonyms

enters a

house

Use synonyms

Remove the comma

apply

show examples

and is stored in a

water

Use synonyms

tank

which

Punctuation problem

, which

show examples

is located on a roof.

After

Linking Words

this

Linking Words

stage, the

water

Use synonyms

flows through pipes into the boiler

that is

Linking Words

fuelled by gas or oil, resulting in boiled

water

Use synonyms

which will be forced by

pump

Correct article usage

a pump

show examples

to flow around the

house

Use synonyms

— to radiators and taps

—

Punctuation problem

apply

show examples

. The

water

Use synonyms

flows around the radiators through

hot small

Correct word order

small hot

show examples

tubes. Once the

heat

Correct word choice

hot

show examples

water

Use synonyms

gets cold, the cold

water

Use synonyms

flows back into the pump and is pushed through the boiler one more time in order to be heated again, and stored in the storage tank

which

Punctuation problem

, which

show examples

also

Linking Words

connects to taps. Since the hot

water

Use synonyms

never runs out from

this

Linking Words

heating system, the

house

Use synonyms

is always warm.

j.pakjamsai

Apr 21, 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: 75%.

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Vocabulary: Replace the words water, house with synonyms.

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Vocabulary: Only 3 basic words for charts were used.

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Vocabulary: The word "around" was used 3 times.

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5
Linking words
meeting the goal of 7 or more
2
Word repetition
meeting the goal of 3 or fewer
9
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: 4.0

Mix of complex & simple sentences

Clear and correct grammar

Task Achievement: 6.0

Complete response

Suitable writing tone

Appropriate word count

1 paragraphs

157 words

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Topic Vocabulary:

central heating system
boiler
radiators
thermostat
temperature regulation
distribution
energy efficiency
indoor climate
uniform heat distribution
heating mechanism

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The diagram below shows how a central heating system in a house works. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

Some people think that people commit crime because of poverty and social problems, while others think it is because of their bad nature. Discuss both these views and give your opinion.

Some people think that physical strength is important for success in sports, while other people think that mental strength is more important. Discuss both views and give your opinion.

Some people believe that unpaid community service should be a compulsory part of high school programmes for example working for a charity, improving the neighborhood or teaching sprots to younger children. To what extent do you agree or disagree?

Some people believe that having sport in schools is a waste of time and resources, whilst other people believe that sport in schools is a vital part of education. Discuss 2 views + give your opinion.