TOEFL integrated writing: fuel-cell engines

The articcle states that internal-combuston engines have several demerits compared to fuel-cel engines and provides three reasons of support. However, the lecture explains that the reasons are not enough to justify that fuel-cel engines provide much advantages over internal-combuston engines and refutes each of the authors reasons.

First, the article claims that fuel-cel engines have available and renewable resources. However, the lecture explains that although the resouce of petrolium is finite, the main resource of fuel named hydogen is not easily availbale too. Hydrogen can be derived from water and air. but to make iit usable it has to be formed into pure liquid state which is highly artificial. The hudrogen needs to be kept in minus 253 degree celsious to keep it in a liquid state.

Second, the article posits that hydrogen-based fuel cells cause less pollution to the environment. However the lecture refutes the reason by saying that, although the car using hydrogen-based fuel cell doesn't pollute the environment, the purification process of this fuel pollutes the environment immensely. To purify the fuel oil or coal need to be burnt. So, if not the car pollutes the environment, the factory which purifies the fuel will definitely pollutes the environment.

Thid, the article states that fuel-cel engines are cost effective as similar distance can be covered by less fuel energy. Again, in this case, the lecture opposes the reason by saying that the manufacturing cost of hudrogen-based fuel cell is costly. This clearly indicates that, although the fuel-cell powered car requires less fuel energy, the cost of that little or less fuel is higher than the petrolium.

Votes
Average: 8 (1 vote)
Essay Categories

Grammar and spelling errors:
Line 1, column 246, Rule ID: MUCH_COUNTABLE[1]
Message: Use 'many' with countable nouns.
Suggestion: many
...o justify that fuel-cel engines provide much advantages over internal-combuston engi...
^^^^
Line 3, column 282, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: But
...ogen can be derived from water and air. but to make iit usable it has to be formed ...
^^^
Line 5, column 100, Rule ID: SENT_START_CONJUNCTIVE_LINKING_ADVERB_COMMA[1]
Message: Did you forget a comma after a conjunctive/linking adverb?
Suggestion: However,
...ause less pollution to the environment. However the lecture refutes the reason by sayin...
^^^^^^^
Line 5, column 203, Rule ID: EN_CONTRACTION_SPELLING
Message: Possible spelling mistake found
Suggestion: doesn't
... the car using hydrogen-based fuel cell doesnt pollute the environment, the purificati...
^^^^^^
Line 5, column 455, Rule ID: DID_BASEFORM[1]
Message: The verb 'will' requires the base form of the verb: 'pollute'
Suggestion: pollute
...which purifies the fuel will definitely pollutes the environment. Thid, the article s...
^^^^^^^^

Transition Words or Phrases used:
but, first, however, if, second, so, as to

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on Part of Speech:
To be verbs : 12.0 10.4613686534 115% => OK
Auxiliary verbs: 4.0 5.04856512141 79% => OK
Conjunction : 7.0 7.30242825607 96% => OK
Relative clauses : 13.0 12.0772626932 108% => OK
Pronoun: 16.0 22.412803532 71% => OK
Preposition: 25.0 30.3222958057 82% => OK
Nominalization: 8.0 5.01324503311 160% => OK

Performance on vocabulary words:
No of characters: 1431.0 1373.03311258 104% => OK
No of words: 268.0 270.72406181 99% => OK
Chars per words: 5.33955223881 5.08290768461 105% => OK
Fourth root words length: 4.04607285448 4.04702891845 100% => OK
Word Length SD: 2.87663820074 2.5805825403 111% => OK
Unique words: 145.0 145.348785872 100% => OK
Unique words percentage: 0.541044776119 0.540411800872 100% => OK
syllable_count: 446.4 419.366225166 106% => OK
avg_syllables_per_word: 1.7 1.55342163355 109% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 1.0 3.25607064018 31% => OK
Interrogative: 0.0 0.116997792494 0% => OK
Article: 12.0 8.23620309051 146% => OK
Subordination: 3.0 1.25165562914 240% => Less adverbial clause wanted.
Conjunction: 1.0 1.51434878587 66% => OK
Preposition: 2.0 2.5761589404 78% => OK

Performance on sentences:
How many sentences: 14.0 13.0662251656 107% => OK
Sentence length: 19.0 21.2450331126 89% => OK
Sentence length SD: 46.2010358573 49.2860985944 94% => OK
Chars per sentence: 102.214285714 110.228320801 93% => OK
Words per sentence: 19.1428571429 21.698381199 88% => OK
Discourse Markers: 3.0 7.06452816374 42% => More transition words/phrases wanted.
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 5.0 4.19205298013 119% => 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: 6.0 4.27373068433 140% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.267001133898 0.272083759551 98% => OK
Sentence topic coherence: 0.102713356634 0.0996497079465 103% => OK
Sentence topic coherence SD: 0.0663028684323 0.0662205650399 100% => OK
Paragraph topic coherence: 0.16922121488 0.162205337803 104% => OK
Paragraph topic coherence SD: 0.0576068028487 0.0443174109184 130% => OK

Essay readability:
automated_readability_index: 13.3 13.3589403974 100% => OK
flesch_reading_ease: 43.73 53.8541721854 81% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 11.9 11.0289183223 108% => OK
coleman_liau_index: 13.69 12.2367328918 112% => OK
dale_chall_readability_score: 9.12 8.42419426049 108% => OK
difficult_words: 77.0 63.6247240618 121% => OK
linsear_write_formula: 8.5 10.7273730684 79% => OK
gunning_fog: 9.6 10.498013245 91% => OK
text_standard: 9.0 11.2008830022 80% => OK
What are above readability scores?

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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: 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.