Using fuel-cell engines
According to the information presented in the reading, it can be clearly understand that the author thinks that hydrogen-based fuel-cell engines are the best alternative of internal-combustion engines and provides some reasons to support it. However, considering the points stated in the listening, the lecturer is of the opinion that provided reasons in the passage are not valid and she is against the fact that fuel-call engines are more efficient.
Given the facts mentioned in the reading, the author claims that internal-combustion engines use petroleum and it is a finite source of energy; on the contrary, hydrogen is available everywhere such as in the air, in water and so on; thus it is better source of energy. On the other hand, corresponding point made by speaker is telling that hydrogen is not as plentiful as the passage claims since it cannot be used when it is in water or air and the process of making hydrogen is very difficult as well because it needs to be in a liquid form so they can use it.
The passage assert that the byproduct of internal-combustion engines are carbon dioxide which is harmful for environment and the byproduct of hydrogen engines are just water. In contrast the professor clarified that it is true but for producing liquid hydrogen itself- in order to use in engines - coal or oil have been using so these pollutants still are producing and overall the amounts of release of this gasses are unchanged.
Finally the passage indicate that hydrogen engines are more economically efficient since it uses only half of the fuel needed by internal-combustion engines. However, the lecturer points out that it is not true since an expensive metal namely Platinum has been used to make these engines and since now no one has been able to replace it thus it is not cheap and it still costs the same amount of money.
| Post date | Users | Rates | Link to Content |
|---|---|---|---|
| 2019-05-13 | paris.alaei@gmail.com | 78 | view |
| 2016-05-03 | koorayoosh | 86 | view |
Grammar and spelling errors:
Line 5, column 13, Rule ID: MASS_AGREEMENT[2]
Message: Possible agreement error - use third-person verb forms for singular and mass nouns: 'asserts'.
Suggestion: asserts
...form so they can use it. The passage assert that the byproduct of internal-combusti...
^^^^^^
Line 5, column 179, Rule ID: SENT_START_CONJUNCTIVE_LINKING_ADVERB_COMMA[2]
Message: Did you forget a comma after a conjunctive/linking adverb?
Suggestion: contrast,
... of hydrogen engines are just water. In contrast the professor clarified that it is true...
^^^^^^^^
Line 5, column 405, Rule ID: THIS_NNS[1]
Message: Did you mean 'these'?
Suggestion: these
...g and overall the amounts of release of this gasses are unchanged. Finally the pa...
^^^^
Line 7, column 1, Rule ID: SENT_START_CONJUNCTIVE_LINKING_ADVERB_COMMA[1]
Message: Did you forget a comma after a conjunctive/linking adverb?
Suggestion: Finally,
...elease of this gasses are unchanged. Finally the passage indicate that hydrogen engi...
^^^^^^^
Discourse Markers used:
['but', 'finally', 'however', 'if', 'so', 'still', 'thus', 'well', 'in contrast', 'such as', 'it is true', 'on the contrary', 'on the other hand']
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance in Part of Speech:
Nouns: 0.229166666667 0.261695866417 88% => OK
Verbs: 0.1875 0.158904122519 118% => OK
Adjectives: 0.077380952381 0.0723426182421 107% => OK
Adverbs: 0.0803571428571 0.0435111971325 185% => Less adverbs wanted.
Pronouns: 0.047619047619 0.0277247811725 172% => OK
Prepositions: 0.142857142857 0.128828473217 111% => OK
Participles: 0.0565476190476 0.0370669169778 153% => OK
Conjunctions: 3.00759817582 2.5805825403 117% => OK
Infinitives: 0.0178571428571 0.0208969081088 85% => OK
Particles: 0.00297619047619 0.00154638098197 192% => Less particles wanted.
Determiners: 0.104166666667 0.128158765124 81% => OK
Modal_auxiliary: 0.00892857142857 0.0158828679856 56% => OK
WH_determiners: 0.00892857142857 0.0114777025283 78% => OK
Vocabulary words and sentences:
No of characters: 1860.0 1645.83664459 113% => OK
No of words: 317.0 271.125827815 117% => OK
Chars per words: 5.86750788644 6.08160592843 96% => OK
Fourth root words length: 4.21953715646 4.04852973271 104% => OK
words length more than 5 chars: 0.347003154574 0.374372842146 93% => OK
words length more than 6 chars: 0.271293375394 0.287516216867 94% => OK
words length more than 7 chars: 0.167192429022 0.187439937562 89% => OK
words length more than 8 chars: 0.110410094637 0.113142543107 98% => OK
Word Length SD: 3.00759817582 2.5805825403 117% => OK
Unique words: 157.0 145.348785872 108% => OK
Unique words percentage: 0.495268138801 0.539623497131 92% => OK
Word variations: 50.023627828 53.8517498576 93% => OK
How many sentences: 8.0 13.0529801325 61% => OK
Sentence length: 39.625 21.7502111507 182% => Sentence lengths are too long.
Sentence length SD: 43.8691235381 49.3711431718 89% => OK
Chars per sentence: 232.5 132.220823453 176% => OK
Words per sentence: 39.625 21.7502111507 182% => Less words per sentence wanted.
Discourse Markers: 1.625 0.878197800319 185% => Less Discourse Markers wanted.
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 4.0 3.39072847682 118% => OK
Readability: 66.7543375394 50.5018328374 132% => OK
Elegance: 1.35849056604 1.90840788429 71% => OK
Coherence and Cohesion:
Essay topic to essay body coherence: 0.117283189682 0.451937469235 26% => The similarity between the topic and the content is low.
Sentence sentence coherence: 0.226147090382 0.142949733639 158% => OK
Sentence sentence coherence SD: 0.093349786065 0.0787303798458 119% => OK
Sentence paragraph coherence: 0.799692548766 0.631733273073 127% => OK
Sentence paragraph coherence SD: 0.0892925629228 0.139662658121 64% => OK
Sentence topic coherence: 0.0795972526579 0.21790590567 37% => Sentence topic similarity is low.
Sentence topic coherence SD: 0.0599798520305 0.0871468918476 69% => OK
Paragraph paragraph coherence: 0.436768024147 0.414875509568 105% => OK
Paragraph paragraph coherence SD: 0.0512856267018 0.0530846634433 97% => OK
Paragraph topic coherence: 0.0884892714401 0.332364718235 27% => OK
Paragraph topic coherence SD: 0.0443019795742 0.0446026805963 99% => OK
Task Achievement:
Sentences with positive sentiment : 6.0 4.33554083885 138% => OK
Sentences with negative sentiment : 1.0 4.45695364238 22% => More negative sentences wanted.
Sentences with neutral sentiment: 1.0 4.26048565121 23% => More neutral sentences wanted.
Positive topic words: 6.0 3.49668874172 172% => OK
Negative topic words: 1.0 3.62251655629 28% => More negative topic words wanted.
Neutral topic words: 1.0 3.1766004415 31% => OK
Total topic words: 8.0 10.2958057395 78% => OK
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Rates: 86.6666666667 out of 100
Scores by essay e-grader: 26.0 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 to cover all aspects.