Pterosaurs were an ancient reptiles with wings lived at the same time of dinosaurs. They were very large and had a windspan over 12 meters. They paleontologists casted doubts on this spisices' flying ablity in that flying needs lots of energy that cold-blooded reptiles could not supply, also the weight of these big reptiles made them impossible to fly. Besides, compared with birds , their back legs were so weak that they probably not jump to fly. However, in this speech, the lecturer disproves the theories metioned as follows.
Firstly, the pterosaurs may have suffcient energy to fly because of the fur. According to the lecturer, the fur of the acncient reptiles were found, thus it was possbile that the pterosaus may maintain warm due to the fur when they were flying. The warm kept in the body may suggest that the pterosaurs were warm-blooded, like the birds today.
Secondly, the ancient reptiles may be not so heavy as people assumed. There were lots of anatomical features discovered, one of which was the bones of the pterosaurs were hollow. So the weight of them could be much lower than the solid ones as researchers thought.
Thirdly,being diffrent from the birds with two legs to jump, the pterosaurs could use the four lims to run or jump like the bats today. Morevoer, they could push over the ground to jump high enough to fly or run fast enough. So they may fly in the sky.
In conclusion, the lecturer contends that even the pterosaurs were an ancient large group of reptiles, they still may fly in the sky due to the special features of their bodies.
Grammar and spelling errors:
Line 1, column 28, Rule ID: A_PLURAL[2]
Message: Don't use indefinite articles with plural words. Did you mean 'reptile'?
Suggestion: reptile
Pterosaurs were an ancient reptiles with wings lived at the same time of di...
^^^^^^^^
Line 1, column 383, Rule ID: COMMA_PARENTHESIS_WHITESPACE
Message: Put a space after the comma, but not before the comma
Suggestion: ,
...ble to fly. Besides, compared with birds , their back legs were so weak that they ...
^^
Line 7, column 8, Rule ID: COMMA_PARENTHESIS_WHITESPACE
Message: Put a space after the comma
Suggestion: , being
... ones as researchers thought. Thirdly,being diffrent from the birds with two legs t...
^^^^^^
Transition Words or Phrases used:
also, besides, first, firstly, however, if, may, second, secondly, so, still, third, thirdly, thus, in conclusion
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 14.0 10.4613686534 134% => OK
Auxiliary verbs: 10.0 5.04856512141 198% => OK
Conjunction : 3.0 7.30242825607 41% => More conjunction wanted.
Relative clauses : 8.0 12.0772626932 66% => More relative clauses wanted.
Pronoun: 21.0 22.412803532 94% => OK
Preposition: 37.0 30.3222958057 122% => OK
Nominalization: 0.0 5.01324503311 0% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 1313.0 1373.03311258 96% => OK
No of words: 274.0 270.72406181 101% => OK
Chars per words: 4.79197080292 5.08290768461 94% => OK
Fourth root words length: 4.0685311056 4.04702891845 101% => OK
Word Length SD: 2.51965103185 2.5805825403 98% => OK
Unique words: 145.0 145.348785872 100% => OK
Unique words percentage: 0.529197080292 0.540411800872 98% => OK
syllable_count: 381.6 419.366225166 91% => OK
avg_syllables_per_word: 1.4 1.55342163355 90% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 5.0 3.25607064018 154% => OK
Article: 7.0 8.23620309051 85% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 4.0 2.5761589404 155% => OK
Performance on sentences:
How many sentences: 15.0 13.0662251656 115% => OK
Sentence length: 18.0 21.2450331126 85% => The Avg. Sentence Length is relatively short.
Sentence length SD: 47.7482285884 49.2860985944 97% => OK
Chars per sentence: 87.5333333333 110.228320801 79% => OK
Words per sentence: 18.2666666667 21.698381199 84% => OK
Discourse Markers: 7.53333333333 7.06452816374 107% => OK
Paragraphs: 5.0 4.09492273731 122% => OK
Language errors: 3.0 4.19205298013 72% => OK
Sentences with positive sentiment : 5.0 4.33554083885 115% => OK
Sentences with negative sentiment : 3.0 4.45695364238 67% => 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: 0.32988909521 0.272083759551 121% => OK
Sentence topic coherence: 0.120439454046 0.0996497079465 121% => OK
Sentence topic coherence SD: 0.117625092406 0.0662205650399 178% => OK
Paragraph topic coherence: 0.185151929834 0.162205337803 114% => OK
Paragraph topic coherence SD: 0.0829528813936 0.0443174109184 187% => OK
Essay readability:
automated_readability_index: 10.3 13.3589403974 77% => Automated_readability_index is low.
flesch_reading_ease: 70.13 53.8541721854 130% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 7.9 11.0289183223 72% => OK
coleman_liau_index: 10.5 12.2367328918 86% => OK
dale_chall_readability_score: 7.7 8.42419426049 91% => OK
difficult_words: 55.0 63.6247240618 86% => OK
linsear_write_formula: 7.5 10.7273730684 70% => OK
gunning_fog: 9.2 10.498013245 88% => OK
text_standard: 8.0 11.2008830022 71% => OK
What are above readability scores?
---------------------
Rates: 85.0 out of 100
Scores by essay e-grader: 25.5 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.