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TPO 34. STELLER'S SEA COW

TPO 34. STELLER'S SEA COW wBmMn
The reading passage describes three theories that explain possible causes of the extinction of a marine mammal called Steller's sea cow that lived around Bering Island. And the lecturer points out some problems in these theories refuting them all. The first theory in the passage states that overhunting by indigenous Siberian people could have been the cause of such an extinction. However, the professor argues that it is unlikely basing on the information about the dimension of both, the sea cow and the Siberian population at that time. He explains that the sea cow was an enormous animal -nine meters long and ten tons of weight- and a few of them could have fed the small villages of Siberian people for months. Therefore, Siberian people could not have caused them to extinct. The second theory described by the reading suggests that some alterations in the ecosystem could have provoked shortage in kelp, the main source of food of the sea cows, and thus became extinct. The lecturer contends that if such ecological changes really happened other animals in the ecosystem would have also been affected, like a decrease in whale's population, but no fishing ship reported such data. Hence, this theory is flawed. Finally, in regard to the third theory mentioned by the passage which asserts that the European fur traders who arrived the island after 1741 caused the animal's extinction, the professor points out that when these merchants came to the island, the species was already small. So it must be something else that caused the extinction of Steller's sea cow.
The reading passage
This phrase/word (depending on the context) can be potentially replaced with :
describes
three
You use this word too often, consider replacing it with
theories
that
This phrase/word (depending on the context) can be potentially replaced with :
explain
possible causes of the
You use this word too often, consider replacing it with
extinction
of a marine mammal called
Possible spelling mistake found.
Steller
's
You use this word too often, consider replacing it with
sea
You use this word too often, consider replacing it with
cow
that
This phrase/word (depending on the context) can be potentially replaced with :
lived
around Bering Island. And the lecturer points out
This phrase/word is too simple and can be replaced with:
some
problems in these
You use this word too often, consider replacing it with
theories
refuting them all.

The
first
You use this word too often, consider replacing it with
theory
in the passage states that overhunting by indigenous Siberian
This phrase/word (depending on the context) can be potentially replaced with :
people
could have been the cause of such an
You use this word too often, consider replacing it with
extinction
.
However
, the professor argues that it is unlikely basing on the information about the dimension of both, the
You use this word too often, consider replacing it with
sea
You use this word too often, consider replacing it with
cow
and the Siberian population at that time. He
This phrase/word (depending on the context) can be potentially replaced with :
explains
that the
You use this word too often, consider replacing it with
sea
You use this word too often, consider replacing it with
cow
was an enormous animal -nine meters long and ten tons of weight- and a few of them could have fed the
This phrase/word is too simple and can be replaced with:
small
villages of Siberian
This phrase/word (depending on the context) can be potentially replaced with :
people
for months.
Therefore
, Siberian
This phrase/word (depending on the context) can be potentially replaced with :
people
could not have caused them to extinct.

The second
You use this word too often, consider replacing it with
theory
This phrase/word (depending on the context) can be potentially replaced with :
described
by the reading suggests that
This phrase/word is too simple and can be replaced with:
some
alterations in the ecosystem could have provoked shortage in kelp, the main source of food of the
You use this word too often, consider replacing it with
sea
You use this word too often, consider replacing it with
cows
, and
thus
became extinct. The lecturer contends that if such ecological
This phrase/word (depending on the context) can be potentially replaced with :
changes
really
happened other animals in the ecosystem would have
also
been
This phrase/word (depending on the context) can be potentially replaced with :
affected
, like a decrease in whale's population,
This phrase/word is too simple and can be replaced with:
but
no fishing ship reported such data.
Hence
, this
You use this word too often, consider replacing it with
theory
is flawed
.

Finally
, in regard to the third
You use this word too often, consider replacing it with
theory
mentioned by the passage which asserts that the European fur traders who arrived the island after 1741 caused the animal's
You use this word too often, consider replacing it with
extinction
, the professor points out that when these merchants came to the island, the species was already
This phrase/word is too simple and can be replaced with:
small
.
This phrase/word is too simple and can be replaced with:
So
it
This phrase/word (depending on the context) can be potentially replaced with :
must
be something else that caused the
You use this word too often, consider replacing it with
extinction
of
Possible spelling mistake found.
Steller
's
You use this word too often, consider replacing it with
sea
You use this word too often, consider replacing it with
cow
.

IELTS essay TPO 34. STELLER'S SEA COW

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