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 Marsand 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 if would add too much weight to the ship.
The reading passage and the lecture talks about the same points. The reading passage, interview the problems of the project of sending humans to mars, but in the lectur, the speaker talk about the solution to this problems.
First, the firs problem is that the round trip to mars and back, will take at least tow years, there is a problem to bring enough food, water, and oxygen for tow years. The speaker interview a way to solve this problem, she talks about:"hydrophonix", this thecnologic will crate ckeen water to the astronauts, moreover to make them oxygen.
Second, the secon problem from the reading passage is: the zero gravity environment of space. this situation effects on the human body. By other hand, the solution from the lecture for this problem is: that the astronauts practice on this environments, so they learn how to live on this environments, moreover they will take balls of minerals that will help their body.
Third, the third problem from the reading passage is, the astronuats on a mission to mars would be exposed to dangerous levels of space radiation. By other hand, the speaker solution is, she say that no always dangerous in the space, the radiation ome sometims from the sun, so they will use shield that protect on them on this time.
- All university students should required to talk history courses not matter what is their field . 60
- Do you agree or disagree with the following statement?“All university students should be required to take history courses no matter what their field of study is.”Use specific reasons and examples to support your answer. 60
- 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 projec 70
- Pets should be treated like family members 60
- Every day on the radio newspapers and T V we hear see or read about many problems in the world write the influence of few problems about our life 80
Grammar and spelling errors:
Line 1, column 210, Rule ID: THIS_NNS[1]
Message: Did you mean 'these'?
Suggestion: these
... the speaker talk about the solution to this problems. First, the firs problem ...
^^^^
Line 4, column 12, Rule ID: POSSESIVE_APOSTROPHE[1]
Message: Possible typo: apostrophe is missing. Did you mean 'firs'' or 'fir's'?
Suggestion: firs'; fir's
...ution to this problems. First, the firs problem is that the round trip to mars ...
^^^^
Line 7, column 95, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: This
... the zero gravity environment of space. this situation effects on the human body. By...
^^^^
Line 7, column 235, Rule ID: THIS_NNS[1]
Message: Did you mean 'these'?
Suggestion: these
...lem is: that the astronauts practice on this environments, so they learn how to live...
^^^^
Line 7, column 283, Rule ID: THIS_NNS[1]
Message: Did you mean 'these'?
Suggestion: these
...ironments, so they learn how to live on this environments, moreover they will take b...
^^^^
Transition Words or Phrases used:
but, first, moreover, second, so, third, at least
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 7.0 10.4613686534 67% => OK
Auxiliary verbs: 6.0 5.04856512141 119% => OK
Conjunction : 4.0 7.30242825607 55% => More conjunction wanted.
Relative clauses : 5.0 12.0772626932 41% => More relative clauses wanted.
Pronoun: 21.0 22.412803532 94% => OK
Preposition: 34.0 30.3222958057 112% => OK
Nominalization: 7.0 5.01324503311 140% => OK
Performance on vocabulary words:
No of characters: 1077.0 1373.03311258 78% => OK
No of words: 219.0 270.72406181 81% => More content wanted.
Chars per words: 4.91780821918 5.08290768461 97% => OK
Fourth root words length: 3.84690116678 4.04702891845 95% => OK
Word Length SD: 2.8876071146 2.5805825403 112% => OK
Unique words: 116.0 145.348785872 80% => More unique words wanted.
Unique words percentage: 0.529680365297 0.540411800872 98% => OK
syllable_count: 311.4 419.366225166 74% => OK
avg_syllables_per_word: 1.4 1.55342163355 90% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 4.0 3.25607064018 123% => OK
Article: 11.0 8.23620309051 134% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 2.0 1.51434878587 132% => OK
Preposition: 2.0 2.5761589404 78% => OK
Performance on sentences:
How many sentences: 9.0 13.0662251656 69% => 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: 24.0 21.2450331126 113% => OK
Sentence length SD: 58.959496455 49.2860985944 120% => OK
Chars per sentence: 119.666666667 110.228320801 109% => OK
Words per sentence: 24.3333333333 21.698381199 112% => OK
Discourse Markers: 5.44444444444 7.06452816374 77% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 5.0 4.19205298013 119% => OK
Sentences with positive sentiment : 2.0 4.33554083885 46% => More positive sentences wanted.
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: 0.0838080801159 0.272083759551 31% => The similarity between the topic and the content is low.
Sentence topic coherence: 0.0419370891946 0.0996497079465 42% => OK
Sentence topic coherence SD: 0.0320356892113 0.0662205650399 48% => Sentences are similar to each other.
Paragraph topic coherence: 0.0552052225833 0.162205337803 34% => Maybe some paragraphs are off the topic.
Paragraph topic coherence SD: 0.0337600135299 0.0443174109184 76% => OK
Essay readability:
automated_readability_index: 13.9 13.3589403974 104% => OK
flesch_reading_ease: 64.04 53.8541721854 119% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 10.3 11.0289183223 93% => OK
coleman_liau_index: 11.55 12.2367328918 94% => OK
dale_chall_readability_score: 7.71 8.42419426049 92% => OK
difficult_words: 40.0 63.6247240618 63% => More difficult words wanted.
linsear_write_formula: 10.5 10.7273730684 98% => OK
gunning_fog: 11.6 10.498013245 110% => OK
text_standard: 12.0 11.2008830022 107% => OK
What are above readability scores?
---------------------
Rates: 70.0 out of 100
Scores by essay e-grader: 21.0 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.