The reading and the listening are both about the reason why sea cow demiced in 1768. The passage believes three reasons which caused the extinction. However, the professor argues the three causes by mentioning the following refutations.
To begin with, the author of the essay points out that sea cow might be overhunted by native Siberian people. Nonetheless, the lecturer challenges the point by mentioning that the quantity of sea cows were massive and their height were about 9 meters. That is to say, they were enormous compared to human beings. As a result, one sea cow could feed Siberian people for few months and Siberian people did not need to hunt a lot of sea cow for food.
Second, the reading contends that ecosystems disturbances might cause a decline in sea cow's main source of food, kelp. Nevertheless, the professor states that if the disturbances had been severe before 1768, other species such as whales might be affected, not just for kelp. However, based on the research, there were not other fish that declined exceedly at that time. Therefor, disturbances was not the main cause.
Third, the article believes that European fur trader killed a large number of sea cows after 1741 because they had weapons. Once again, the professor disagrees with the idea, and she maintains that sea cow had already dramatically decreased before 1700, the time long before European people came to Bering Island. Consequently, European people were not the main reason for the demise.
In a nutshell, the professor successfully casts doubt on all of the claims presented in the article.
- TOEFL T P O 30 Integrated Writing Task 91
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- tpo28 71
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Grammar and spelling errors:
Line 7, column 61, Rule ID: LARGE_NUMBER_OF[1]
Message: Specify a number, remove phrase, or simply use 'many' or 'numerous'
Suggestion: many; numerous
...elieves that European fur trader killed a large number of sea cows after 1741 because they had we...
^^^^^^^^^^^^^^^^^
Line 9, column 58, Rule ID: ALL_OF_THE[1]
Message: Simply use 'all the'.
Suggestion: all the
...e professor successfully casts doubt on all of the claims presented in the article.
^^^^^^^^^^
Transition Words or Phrases used:
consequently, however, if, nevertheless, nonetheless, second, so, third, such as, as a result, to begin with, that is to say
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 11.0 10.4613686534 105% => OK
Auxiliary verbs: 5.0 5.04856512141 99% => OK
Conjunction : 4.0 7.30242825607 55% => More conjunction wanted.
Relative clauses : 10.0 12.0772626932 83% => OK
Pronoun: 13.0 22.412803532 58% => OK
Preposition: 30.0 30.3222958057 99% => OK
Nominalization: 1.0 5.01324503311 20% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 1341.0 1373.03311258 98% => OK
No of words: 265.0 270.72406181 98% => OK
Chars per words: 5.06037735849 5.08290768461 100% => OK
Fourth root words length: 4.03470204552 4.04702891845 100% => OK
Word Length SD: 2.58587228862 2.5805825403 100% => OK
Unique words: 153.0 145.348785872 105% => OK
Unique words percentage: 0.577358490566 0.540411800872 107% => OK
syllable_count: 396.9 419.366225166 95% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 2.0 3.25607064018 61% => OK
Article: 11.0 8.23620309051 134% => OK
Subordination: 1.0 1.25165562914 80% => OK
Conjunction: 1.0 1.51434878587 66% => OK
Preposition: 2.0 2.5761589404 78% => OK
Performance on sentences:
How many sentences: 15.0 13.0662251656 115% => OK
Sentence length: 17.0 21.2450331126 80% => The Avg. Sentence Length is relatively short.
Sentence length SD: 37.954124355 49.2860985944 77% => OK
Chars per sentence: 89.4 110.228320801 81% => OK
Words per sentence: 17.6666666667 21.698381199 81% => OK
Discourse Markers: 8.26666666667 7.06452816374 117% => OK
Paragraphs: 5.0 4.09492273731 122% => OK
Language errors: 2.0 4.19205298013 48% => OK
Sentences with positive sentiment : 2.0 4.33554083885 46% => More positive sentences wanted.
Sentences with negative sentiment : 6.0 4.45695364238 135% => OK
Sentences with neutral sentiment: 7.0 4.27373068433 164% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.48572160858 0.272083759551 179% => OK
Sentence topic coherence: 0.14900078403 0.0996497079465 150% => OK
Sentence topic coherence SD: 0.105670230203 0.0662205650399 160% => OK
Paragraph topic coherence: 0.226865546249 0.162205337803 140% => OK
Paragraph topic coherence SD: 0.119719621291 0.0443174109184 270% => More connections among paragraphs wanted.
Essay readability:
automated_readability_index: 11.2 13.3589403974 84% => Automated_readability_index is low.
flesch_reading_ease: 62.68 53.8541721854 116% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 8.7 11.0289183223 79% => OK
coleman_liau_index: 11.77 12.2367328918 96% => OK
dale_chall_readability_score: 8.17 8.42419426049 97% => OK
difficult_words: 62.0 63.6247240618 97% => OK
linsear_write_formula: 6.5 10.7273730684 61% => OK
gunning_fog: 8.8 10.498013245 84% => OK
text_standard: 9.0 11.2008830022 80% => OK
What are above readability scores?
---------------------
Rates: 60.0 out of 100
Scores by essay e-grader: 18.0 Out of 30
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Note: the e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.