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The reading passage and the lecture both discuss the Quackers which is an underwater unfamiliar noise captured by Russian submarines between 1960s and 1980s.

The reading passage and the lecture both discuss the Quackers which is an underwater unfamiliar noise captured by Russian submarines between 1960s and 1980s. pRDB3
The reading passage and the lecture both discuss the Quackers which is an underwater unfamiliar noise captured by Russian submarines between 1960s and 1980s. The author of the passage advances three hypotheses to explain the possible sources of Quackers. However, the lecturer challenges what the author proposes and refutes the reasons. First off, the author highlights the fact that these eerie noise could be produced by the Ocra whales while the female whale wants to attaract the male one. On the contrary, the lecturer contends that submarines move deep in the ocean but the Ocra whales live near the surface of the ocean so they are far away from each other. Consequently, it's not possible for the submarine to hear Ocra whales' sound. Moreover, the author posits that the sounds probably were created by giant squid. Not having been convinced, the speaker says that the sound abruptly disappeared entirely after 1980s. However, the giant squid continue living after that. Therefore, it's not reasonable to accept that the sound of a especial species of the animals suddenly stop without any particular reason. Finally, the lecturer does not support what the author declares revolving around the fact that another county's submarine which is using a military technology to get hidden from detection, emitted the sound unconsciously. He claims that the sources of sound were extremely nimble that they changed their direction quickly and move at high speeds. On the contrary, even nowadays technology does not enable governments to invent such an agile submarine. Moreover, the engine noise is cannot get this much silent and it's not possible to create such a silent one.
The reading passage and the lecture both discuss the
Possible spelling mistake found.
Quackers
which is an underwater unfamiliar noise captured by Russian
You use this word too often, consider replacing it with
submarines
between 1960s and 1980s. The
You use this word too often, consider replacing it with
author
of the passage advances three hypotheses to
This phrase/word (depending on the context) can be potentially replaced with :
explain
the possible sources of
Possible spelling mistake found.
Quackers
.
However
, the lecturer challenges what the
You use this word too often, consider replacing it with
author
proposes and refutes the reasons.

First
off, the
You use this word too often, consider replacing it with
author
highlights the fact that these eerie noise could
be produced
by the
Possible spelling mistake found.
Ocra
whales while the female whale wants to
Possible spelling mistake found.
attaract
the male one.
On the contrary
, the lecturer contends that
You use this word too often, consider replacing it with
submarines
This phrase/word (depending on the context) can be potentially replaced with :
move
deep in the ocean
This phrase/word is too simple and can be replaced with:
but
the
Possible spelling mistake found.
Ocra
whales
This phrase/word (depending on the context) can be potentially replaced with :
live
near the surface of the ocean
This phrase/word is too simple and can be replaced with:
so
they are far away from each other.
Consequently
, it's not possible for the
You use this word too often, consider replacing it with
submarine
to hear
Possible spelling mistake found.
Ocra
whales' sound.

Moreover
, the
You use this word too often, consider replacing it with
author
posits that the
You use this word too often, consider replacing it with
sounds
probably
were created
by giant squid. Not having
been convinced
, the speaker says that the
You use this word too often, consider replacing it with
sound
abruptly
disappeared
entirely
after 1980s.
However
, the giant squid continue living after that.
Therefore
, it's not reasonable to accept that the
You use this word too often, consider replacing it with
sound
of
Use "an" instead of 'a' if the following word starts with a vowel sound, e.g. 'an article', 'an hour'
a
especial species of the animals
suddenly
This phrase/word (depending on the context) can be potentially replaced with :
stop
without any particular reason.

Finally
, the lecturer does not support what the
You use this word too often, consider replacing it with
author
declares revolving around the fact that another county's
You use this word too often, consider replacing it with
submarine
which is using a military technology to
This phrase/word (depending on the context) can be potentially replaced with :
get
hidden from detection, emitted the
You use this word too often, consider replacing it with
sound
unconsciously
. He claims that the sources of
You use this word too often, consider replacing it with
sound
were
extremely
nimble that they
This phrase/word (depending on the context) can be potentially replaced with :
changed
their direction
quickly
and
This phrase/word (depending on the context) can be potentially replaced with :
move
at high speeds.
On the contrary
, even nowadays technology does not enable
This phrase/word (depending on the context) can be potentially replaced with :
governments
to invent such an agile
You use this word too often, consider replacing it with
submarine
.
Moreover
, the engine noise is cannot
This phrase/word (depending on the context) can be potentially replaced with :
get
this much silent and it's not possible to create such a silent one.
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IELTS essay The reading passage and the lecture both discuss the Quackers which is an underwater unfamiliar noise captured by Russian submarines between 1960s and 1980s.

Essay
  American English
4 paragraphs
271 words
5.5
Overall Band Score
Coherence and Cohesion: 5.5
  • 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: 5.0
  • 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: 5.0
  • Answer all parts of the question
  • ?
    Present relevant ideas
  • Fully explain these ideas
  • Support ideas with relevant, specific examples
Labels Descriptions
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    Currently is not available
  • Meet the criteria
  • Doesn't meet the criteria
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