The reading passage and the lecture are both about the distinction reason for the sea cows. The passage introduces three distinction theories, while the lecture points out that all of the theories have problems.
First of all, the reading demonstrates the sea cows could have been overhunted by native Siberian people who treated the sea cows as a good source of food. The lecture notes that the sea cows were massive and enormous, 9 meters long and 10 tons. However, the population of native Siberian people is not large, which means they do not need to hunt many sea cows. Therefore, native Siberian people are not the extinction reason for the sea cows.
Secondly, the author illustrates a theory that the sea cows may have become extinct because of ecosystem disturbances, which caused a decline in their main source of food, kelp. The professor, however, refutes if a severe disturbance happened, it would influence not only the number of the sea cow and kelp but also other organisms. On the contrary, the evidence shows the population of whales did not decrease at that time. Since most plants grew fine, the professor goes on to say the sea cows should not experience a food shortly.
Finally, the article states another theory is that European fur traders who came to the island caused the sea cow's extinction because they killed a large number of the animal quickly. The speaker holds a conflict views that the number of the sea cow was already small long before European fur traders came to the island. He goes on to say that the European fur trader could not be the cause of the extinction since they arrived at the island after the number of sea cows decreased.
The reading passage and the lecture are both about the distinction reason for the sea cows. The passage introduces three distinction theories, while the lecture points out that all of the theories have problems.
First of all, the reading demonstrates the sea cows could have been overhunted by native Siberian people who treated the sea cows as a good source of food. The lecture notes that the sea cows were massive and enormous, 9 meters long and 10 tons. However, the population of native Siberian people is not large, which means they do not need to hunt many sea cows. Therefore, native Siberian people are not the extinction reason for the sea cows.
Secondly, the author illustrates a theory that the sea cows may have become extinct because of ecosystem disturbances, which caused a decline in their main source of food, kelp. The professor, however, refutes if a severe disturbance happened, it would influence not only the number of the sea cow and kelp but also other organisms. On the contrary, the evidence shows the population of whales did not decrease at that time. Since most plants grew fine, the professor goes on to say the sea cows should not experience a food shortly.
Finally, the article states another theory is that European fur traders who came to the island caused the sea cow's extinction because they killed a large number of the animal quickly. The speaker holds a conflict views that the number of the sea cow was already small long before European fur traders came to the island. He goes on to say that the European fur trader could not be the cause of the extinction since they arrived at the island after the number of sea cows decreased.
| Post date | Users | Rates | Link to Content |
|---|---|---|---|
| 2020-12-31 | Junjie Yue | 70 | view |
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- Do you agree or disagree the following sentence When people communicate about a project in person instead of by e mail they will produce better work of the project 70
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- creative 80
Grammar and spelling errors:
Line 1, column 178, Rule ID: ALL_OF_THE[1]
Message: Simply use 'all the'.
Suggestion: all the
...ries, while the lecture points out that all of the theories have problems. First of all...
^^^^^^^^^^
Line 7, column 111, Rule ID: POSSESIVE_APOSTROPHE[1]
Message: Possible typo: apostrophe is missing. Did you mean 'cows'' or 'cow's'?
Suggestion: cows'; cow's
...s who came to the island caused the sea cows extinction because they killed a large ...
^^^^
Line 7, column 147, Rule ID: LARGE_NUMBER_OF[1]
Message: Specify a number, remove phrase, or simply use 'many' or 'numerous'
Suggestion: many; numerous
...sea cows extinction because they killed a large number of the animal quickly. The speaker holds a...
^^^^^^^^^^^^^^^^^
Transition Words or Phrases used:
also, but, finally, first, however, if, may, second, secondly, so, therefore, while, first of all, on the contrary
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 8.0 10.4613686534 76% => OK
Auxiliary verbs: 6.0 5.04856512141 119% => OK
Conjunction : 5.0 7.30242825607 68% => OK
Relative clauses : 11.0 12.0772626932 91% => OK
Pronoun: 13.0 22.412803532 58% => OK
Preposition: 30.0 30.3222958057 99% => OK
Nominalization: 11.0 5.01324503311 219% => Less nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 1393.0 1373.03311258 101% => OK
No of words: 291.0 270.72406181 107% => OK
Chars per words: 4.78694158076 5.08290768461 94% => OK
Fourth root words length: 4.13022058845 4.04702891845 102% => OK
Word Length SD: 2.43484310169 2.5805825403 94% => OK
Unique words: 151.0 145.348785872 104% => OK
Unique words percentage: 0.518900343643 0.540411800872 96% => OK
syllable_count: 427.5 419.366225166 102% => 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: 2.0 1.25165562914 160% => OK
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 2.0 2.5761589404 78% => OK
Performance on sentences:
How many sentences: 13.0 13.0662251656 99% => OK
Sentence length: 22.0 21.2450331126 104% => OK
Sentence length SD: 34.0080046268 49.2860985944 69% => OK
Chars per sentence: 107.153846154 110.228320801 97% => OK
Words per sentence: 22.3846153846 21.698381199 103% => OK
Discourse Markers: 8.76923076923 7.06452816374 124% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 3.0 4.19205298013 72% => OK
Sentences with positive sentiment : 3.0 4.33554083885 69% => OK
Sentences with negative sentiment : 5.0 4.45695364238 112% => OK
Sentences with neutral sentiment: 5.0 4.27373068433 117% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.412592292025 0.272083759551 152% => OK
Sentence topic coherence: 0.162023680779 0.0996497079465 163% => OK
Sentence topic coherence SD: 0.175020159004 0.0662205650399 264% => The coherence between sentences is low.
Paragraph topic coherence: 0.309663606541 0.162205337803 191% => OK
Paragraph topic coherence SD: 0.279532693328 0.0443174109184 631% => More connections among paragraphs wanted.
Essay readability:
automated_readability_index: 12.3 13.3589403974 92% => Automated_readability_index is low.
flesch_reading_ease: 57.61 53.8541721854 107% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 10.7 11.0289183223 97% => OK
coleman_liau_index: 10.8 12.2367328918 88% => OK
dale_chall_readability_score: 7.6 8.42419426049 90% => OK
difficult_words: 53.0 63.6247240618 83% => More difficult words wanted.
linsear_write_formula: 11.0 10.7273730684 103% => OK
gunning_fog: 10.8 10.498013245 103% => OK
text_standard: 11.0 11.2008830022 98% => OK
What are above readability scores?
---------------------
Rates: 70.0 out of 100
Scores by essay e-grader: 21.0 Out of 30
---------------------
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.