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The pictures show how a hot-air balloon flies. Summarize the information by selecting and reporting the main features. You are advised to spend a maximum of 20 minutes on this task. You should write at least 150 words.

The pictures show how a hot-air balloon flies. J3WQE
The pictures show a hot-air balloon and the basic principles that enable it to be flown. The balloon has three main parts: the envelope, which is made of nylon, a burner to produce a flame, and a basket to carry the people. The pilot has to be able to control the upward and downward movement of the balloon so that it can fly. In order to make the balloon go up, the pilot uses the flame from the burner to heat the air inside the envelope. To make it descend, the pilot closes the burner so that the supply of hot air to the envelope is cut off. Consequently, the air inside cools down, making it become as heavy as the air outside. This results in the balloon losing height. As the hotter air inside is lighter than the air outside, this causes the balloon to rise. The direction in which the balloon moves horizontally depends on the direction of the wind. Nevertheless, since the wind direction may vary at different heights, moving up or down allows the pilot to steer the balloon.
The pictures
This phrase/word (depending on the context) can be potentially replaced with :
show
a hot-air
You use this word too often, consider replacing it with
balloon
and the basic principles that enable it to
be flown
. The
You use this word too often, consider replacing it with
balloon
has three main parts: the envelope, which
is made
of nylon, a burner to produce a flame, and a basket to carry the
This phrase/word (depending on the context) can be potentially replaced with :
people
.

Three successive sentences begin with the same word. Consider rewording the sentence or use a thesaurus to find a synonym.
The
You use this word too often, consider replacing it with
pilot
This phrase/word is too simple and can be replaced with:
has to
be able to control the upward and downward movement of the
You use this word too often, consider replacing it with
balloon
This phrase/word is too simple and can be replaced with:
so
that it can
fly
. In order to
This phrase/word (depending on the context) can be potentially replaced with :
make
the
You use this word too often, consider replacing it with
balloon
go up, the
You use this word too often, consider replacing it with
pilot
This phrase/word (depending on the context) can be potentially replaced with :
uses
the flame from the burner to heat the
You use this word too often, consider replacing it with
air
inside the envelope. To
This phrase/word (depending on the context) can be potentially replaced with :
make
it descend, the
You use this word too often, consider replacing it with
pilot
closes the burner
This phrase/word is too simple and can be replaced with:
so
that the supply of hot
You use this word too often, consider replacing it with
air
to the envelope is
This phrase/word (depending on the context) can be potentially replaced with :
cut
off.
Consequently
, the
You use this word too often, consider replacing it with
air
inside cools down, making it become as heavy as the
You use this word too often, consider replacing it with
air
outside. This results in the
You use this word too often, consider replacing it with
balloon
losing height. As the hotter
You use this word too often, consider replacing it with
air
inside is lighter than the
You use this word too often, consider replacing it with
air
outside, this causes the
You use this word too often, consider replacing it with
balloon
to rise.

The direction in which the
You use this word too often, consider replacing it with
balloon
This phrase/word (depending on the context) can be potentially replaced with :
moves
horizontally
depends on the direction of the wind.
Nevertheless
, since the wind direction may vary at
This phrase/word is too simple and can be replaced with:
different
heights, moving up or down
This phrase/word (depending on the context) can be potentially replaced with :
allows
the
You use this word too often, consider replacing it with
pilot
to steer the
You use this word too often, consider replacing it with
balloon
.
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IELTS academic The pictures show how a hot-air balloon flies.

Academic
  American English
3 paragraphs
183 words
6.5
Overall Band Score
Coherence and Cohesion: 7.0
  • Structure your answers in logical paragraphs
  • ?
    One main idea per paragraph
  • ?
    Include an introduction and conclusion
  • ?
    Support main points with an explanation and then an example
  • Use cohesive linking words accurately and appropriately
  • ?
    Vary your linking phrases using synonyms
Lexical Resource: 5.5
  • Try to vary your vocabulary using accurate synonyms
  • Use less common question specific words that accurately convey meaning
  • Check your work for spelling and word formation mistakes
Grammatical Range: 6.5
  • Use a variety of complex and simple sentences
  • Check your writing for errors
Task Achievement: 6.5
  • Answer all parts of the question
  • ?
    Present relevant ideas
  • Fully explain these ideas
  • ?
    Support ideas with relevant, specific examples
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  • The pictures show how a hot-air balloon flies. Summarize the information by selecting and reporting the main features. You are advised to spend a maximum of 20 minutes on this task. You should write at least 150 words.