TPO-50
Scientists are considering the possibility of sending humans to Mars in the coming decades. Although there have been successful manned missions to the Moon in the 1960s and 1970s, Mars is 150 times further away from Earth than the Moon is. Thus the project of sending humans to Mars would require solving an array of problems the Moon missions did not have to face. One problem is that a round-trip to Mars and back is likely to take at least two years. The trip to the Moon lasted only a few days, and it was easy to bring enough supplies of food, water, and oxygen; but the cargo capacity of space vehicles is too limited to put on board the food, water, and oxygen required by a crew for a period of two years. Without those essentials, though, a Mars mission is impossible. A second problem is that astronauts on the Mars mission would be in the zero-gravity environment of space for many months at a time. Spending a long time in the zero-gravity environment has negative effects on the human body, such as decreased muscle mass and lower bone density. Over the course of a two-year mission, the effects would be so severe, they would make it impossible for humans to make the trip without experiencing grave medical problems. Finally, astronauts on a mission to Mars would be exposed to dangerous levels of space radiation, much of which comes in the form of charged particles emitted by the Sun. Earth’s magnetic field, which normally protects us from dangerous solar radiation, would not be able to protect a spaceship traveling in interplanetary space. Constructing a shield that would protect the whole spaceship from space radiation is at present impossible because it would add too much weight to the ship.
The reading passage states that the plan of sending a human to mars has some problems that the technology to solve them is not in hand yet. However, the professor in the lecture casts doubt on the problems presented by the reading passage and explains that some solutions have been found.
First, considering the reading passage, Travelling to mars will long at least 2 months and space vehicles do not have enough space to contain sufficient supply of food, water, and oxygen for this long period. In contrast, the professor in the lecture contradicts the idea made by reading passage and further explains that there is no need to bring that much supply from the earth. they can cultivate plants with the help of recently found techniques in which their roots are in water instead of soil. The food will be provided by cultivation, water can be recycled and used again and also plant will use carbon dioxide to produce oxygen for breathing.
Second, reading claims that astronauts facing zero-gravity for a long period, will have health problems such as a reduction in their muscles' mass. On the contrary, the professor in the lecture refutes the information presented in the reading passage and makes the point that these help problems can be solved with some techniques such as using a sufficient amount of vitamins.
Third, the author in the reading puts forward the idea that astronauts can not safe from space radiations which are quite dangerous for the human body and also a shield for a spaceship can not be built since it will bring too much weight. On the other hand, the speaker contradicts the idea and adds that space radiations are not always dangerous and harmful radiations happen occasionally. So they should locate types of equipment to monitor radiations in the spaceship and design a small space to protect astronauts from radiations in times it is needed which will not be such heavy.
Grammar and spelling errors:
Line 7, column 55, Rule ID: TO_NON_BASE[1]
Message: The verb after "to" should be in the base form: 'mar'.
Suggestion: mar
...ring the reading passage, Travelling to mars will long at least 2 months and space v...
^^^^
Line 7, column 382, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: They
... bring that much supply from the earth. they can cultivate plants with the help of r...
^^^^
Transition Words or Phrases used:
also, first, however, second, so, third, at least, in contrast, such as, on the contrary, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 12.0 10.4613686534 115% => OK
Auxiliary verbs: 13.0 5.04856512141 257% => Less auxiliary verb wanted.
Conjunction : 12.0 7.30242825607 164% => OK
Relative clauses : 12.0 12.0772626932 99% => OK
Pronoun: 18.0 22.412803532 80% => OK
Preposition: 40.0 30.3222958057 132% => OK
Nominalization: 4.0 5.01324503311 80% => OK
Performance on vocabulary words:
No of characters: 1612.0 1373.03311258 117% => OK
No of words: 325.0 270.72406181 120% => OK
Chars per words: 4.96 5.08290768461 98% => OK
Fourth root words length: 4.24591054749 4.04702891845 105% => OK
Word Length SD: 2.51364842457 2.5805825403 97% => OK
Unique words: 160.0 145.348785872 110% => OK
Unique words percentage: 0.492307692308 0.540411800872 91% => More unique words wanted or less content wanted.
syllable_count: 473.4 419.366225166 113% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 1.0 3.25607064018 31% => OK
Article: 7.0 8.23620309051 85% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 1.0 1.51434878587 66% => OK
Preposition: 4.0 2.5761589404 155% => OK
Performance on sentences:
How many sentences: 11.0 13.0662251656 84% => Need more sentences. Double check the format of sentences, make sure there is a space between two sentences, or have enough periods. And also check the lengths of sentences, maybe they are too long.
Sentence length: 29.0 21.2450331126 137% => The Avg. Sentence Length is relatively long.
Sentence length SD: 37.4904946631 49.2860985944 76% => OK
Chars per sentence: 146.545454545 110.228320801 133% => OK
Words per sentence: 29.5454545455 21.698381199 136% => OK
Discourse Markers: 9.72727272727 7.06452816374 138% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 2.0 4.19205298013 48% => OK
Sentences with positive sentiment : 4.0 4.33554083885 92% => OK
Sentences with negative sentiment : 5.0 4.45695364238 112% => OK
Sentences with neutral sentiment: 2.0 4.27373068433 47% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.0773440581536 0.272083759551 28% => The similarity between the topic and the content is low.
Sentence topic coherence: 0.0342498605765 0.0996497079465 34% => Sentence topic similarity is low.
Sentence topic coherence SD: 0.0334770743814 0.0662205650399 51% => OK
Paragraph topic coherence: 0.0514534550939 0.162205337803 32% => Maybe some paragraphs are off the topic.
Paragraph topic coherence SD: 0.0312338931015 0.0443174109184 70% => OK
Essay readability:
automated_readability_index: 16.7 13.3589403974 125% => OK
flesch_reading_ease: 50.5 53.8541721854 94% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 13.4 11.0289183223 121% => OK
coleman_liau_index: 12.08 12.2367328918 99% => OK
dale_chall_readability_score: 7.94 8.42419426049 94% => OK
difficult_words: 59.0 63.6247240618 93% => OK
linsear_write_formula: 13.0 10.7273730684 121% => OK
gunning_fog: 13.6 10.498013245 130% => OK
text_standard: 13.0 11.2008830022 116% => OK
What are above readability scores?
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Write the essay in 20 minutes.
It is not exactly right on the topic in the view of e-grader. Maybe there is a wrong essay topic.
Rates: 3.33333333333 out of 100
Scores by essay e-grader: 1.0 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.