The article claims that a species of tree, the yellow cedar, which is common in northwestern North America, have been decreasing and provide three hypotheses for it. In contrast, the professor expresses that these reasons are inadequate, hence he refutes each the author's reasons.
First, the reading states that the yellow cedar decline may be caused by the cedar bark beetle, which is insect parasite. Conversely, the speaker oppose this point by expressing that the yellow cedars tree is much more resistance against this kind of parasite, because the bark of this tree is saturated of poisons, which prevent of be attacked by insect parasites. So, the cedar bark beetle can not be the main cause of the yellow cedar decline.
Second, the passage explains that brown bears may decline the cedar trees, because this kind of animal eats the tree bark, which has higher sugar content. On the contrary, the lecturer refutes this matter by saying that the yellow cedar, which are in the island, have been declining, while there are not any brown bears. Hence, Brown bears can not be responsible for the yellow cedar decrease.
In the third place, the text mentions that change the pattern of seasonal damage roots of the cedar trees. In contrast, the professor explain that the author's hypnoses can be right for trees, which locate in high altitude, while most of the cedar trees decline relates the cedar trees which are in low elevation.
Discourse Markers used:
['conversely', 'first', 'hence', 'may', 'second', 'so', 'third', 'while', 'in contrast', 'kind of', 'on the contrary', 'in the third place']
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance in Part of Speech:
Nouns: 0.287272727273 0.261695866417 110% => OK
Verbs: 0.141818181818 0.158904122519 89% => OK
Adjectives: 0.0872727272727 0.0723426182421 121% => OK
Adverbs: 0.0254545454545 0.0435111971325 59% => OK
Pronouns: 0.00727272727273 0.0277247811725 26% => Some pronouns wanted.
Prepositions: 0.134545454545 0.128828473217 104% => OK
Participles: 0.0327272727273 0.0370669169778 88% => OK
Conjunctions: 2.29066176977 2.5805825403 89% => OK
Infinitives: 0.0 0.0208969081088 0% => Some infinitives wanted.
Particles: 0.0 0.00154638098197 0% => OK
Determiners: 0.138181818182 0.128158765124 108% => OK
Modal_auxiliary: 0.0181818181818 0.0158828679856 114% => OK
WH_determiners: 0.0290909090909 0.0114777025283 253% => OK
Vocabulary words and sentences:
No of characters: 1447.0 1645.83664459 88% => OK
No of words: 242.0 271.125827815 89% => More content wanted.
Chars per words: 5.97933884298 6.08160592843 98% => OK
Fourth root words length: 3.94415379849 4.04852973271 97% => OK
words length more than 5 chars: 0.363636363636 0.374372842146 97% => OK
words length more than 6 chars: 0.235537190083 0.287516216867 82% => OK
words length more than 7 chars: 0.136363636364 0.187439937562 73% => OK
words length more than 8 chars: 0.0909090909091 0.113142543107 80% => OK
Word Length SD: 2.29066176977 2.5805825403 89% => OK
Unique words: 127.0 145.348785872 87% => More unique words wanted.
Unique words percentage: 0.52479338843 0.539623497131 97% => OK
Word variations: 49.4224996925 53.8517498576 92% => OK
How many sentences: 10.0 13.0529801325 77% => OK
Sentence length: 24.2 21.7502111507 111% => OK
Sentence length SD: 52.1046063223 49.3711431718 106% => OK
Chars per sentence: 144.7 132.220823453 109% => OK
Words per sentence: 24.2 21.7502111507 111% => OK
Discourse Markers: 1.2 0.878197800319 137% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 0.0 3.39072847682 0% => OK
Readability: 47.7537190083 50.5018328374 95% => OK
Elegance: 2.60416666667 1.90840788429 136% => OK
Coherence and Cohesion:
Essay topic to essay body coherence: 0.776837765756 0.549887131256 141% => OK
Sentence sentence coherence: 0.190351180966 0.142949733639 133% => OK
Sentence sentence coherence SD: 0.0893741453337 0.0787303798458 114% => OK
Sentence paragraph coherence: 0.736394494906 0.631733273073 117% => OK
Sentence paragraph coherence SD: 0.0902762448912 0.139662658121 65% => OK
Sentence topic coherence: 0.462697756701 0.266732575781 173% => OK
Sentence topic coherence SD: 0.103007901045 0.103435571967 100% => OK
Paragraph paragraph coherence: 0.469980546143 0.414875509568 113% => OK
Paragraph paragraph coherence SD: 0.0892423204369 0.0530846634433 168% => OK
Paragraph topic coherence: 0.593382584451 0.40443939384 147% => OK
Paragraph topic coherence SD: 0.0607577028933 0.0528353158467 115% => OK
Task Achievement:
Sentences with positive sentiment : 1.0 4.33554083885 23% => More positive sentences wanted.
Sentences with negative sentiment : 5.0 4.45695364238 112% => OK
Sentences with neutral sentiment: 4.0 4.26048565121 94% => OK
Positive topic words: 1.0 3.49668874172 29% => More positive topic words wanted.
Negative topic words: 5.0 3.62251655629 138% => OK
Neutral topic words: 4.0 3.1766004415 126% => OK
Total topic words: 10.0 10.2958057395 97% => OK
What are sentences with positive/Negative/neutral sentiment?
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Rates: 80.0 out of 100
Scores by essay e-grader: 24.0 Out of 30
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Note: This is not the final score. 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.