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This picture below shows how a hot balloon works. Summarize the information by selecting and reporting the main features.

This picture below shows how a hot balloon works. awWRm
The diagram illustrates the construction of a hot air balloon and its mechanism. Overall, there are several main parts of the hot air balloon, including the envelope, the skirt, the burner and the basket. In terms of its mechanism, a hot balloon goes up when the envelope is filled with hot air and goes down when the envelope is full of cool air. The largest part of a hot balloon is the envelope. It is constructed from long nylon gores. And gores are made up of a number of smaller panels. The parachute valve, a self-sealing flat which is used to regulate hot air inside the balloon is on top of the envelope. At the bottom of the envelope, the skirt is used to make a hot air balloon look like an inverted teardrop shape. In addition, the basket and the envelope are connected by ropes and the burners are fixed to a frame below the skirts. Turning to the mechanism of a hot air balloon, it works based on a basic scientific principle: warmer air rises in cooler air. The burners heat the air by burning propane, which is stored in cylinders positioned in a balloon basket. When the air inside becomes hotter, a hot air balloon floats since the hotter air is lighter than the cooler air outside. By contrast, to pull a hot air balloon downward, a pilot has to open the parachute valves to let the hot air escape. This causes a balloon to slow its ascent
The diagram illustrates the construction of a hot
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air
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balloon
and its mechanism.
Overall
, there are several main parts of the hot
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air
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balloon
, including the
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envelope
, the skirt, the burner and the basket. In terms of its mechanism, a hot
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balloon
goes up when the
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envelope
is filled
with hot
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air
and goes down when the
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envelope
is full of cool air.

The largest part of a hot
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balloon
is the
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envelope
. It
is constructed
from long nylon gores. And gores
are made
up of a number of smaller panels. The parachute valve, a self-sealing flat which is
This phrase/word (depending on the context) can be potentially replaced with :
used
to regulate hot
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air
inside the
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balloon
is on top of the
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envelope
. At the bottom of the
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envelope
, the skirt is
This phrase/word (depending on the context) can be potentially replaced with :
used
to
This phrase/word (depending on the context) can be potentially replaced with :
make
a hot
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air
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balloon
look like an inverted teardrop shape.
In addition
, the basket and the
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envelope
are connected
by ropes and the burners are
This phrase/word (depending on the context) can be potentially replaced with :
fixed
to a frame below the skirts.

Turning to the mechanism of a hot
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air
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balloon
, it works based on a basic scientific principle: warmer
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air
rises in cooler
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air
. The burners heat the
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air
by burning propane, which
is stored
in cylinders positioned in a
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balloon
basket. When the
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air
inside becomes hotter, a hot
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air
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balloon
floats since the hotter
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air
is lighter than the cooler
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air
outside. By contrast, to pull a hot
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air
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balloon
downward, a pilot
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has to
open the parachute valves to
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let
the hot
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air
escape. This causes a
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balloon
to slow its
Please add a punctuation mark at the end of paragraph
ascent
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IELTS academic This picture below shows how a hot balloon works.

Academic
  American English
3 paragraphs
250 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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  • This picture below shows how a hot balloon works. Summarize the information by selecting and reporting the main features.