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.
In this set of materials, the reading passage discusses that journey to mars need to overcome some serious problems which today we cannot fix them, and shared three of these problems. While in the listening the professor casts doubt on what was presented in the text and believes that travel to mars would be definitely challenging, but scientists have been proposed several solutions for these problems.
First of all, in the text, it is clearly mentioned that travel to mars is a very long trip and providing enough food and other supplies would be a big challenge. However, the professor claims that we can use the hydroponic technic for growing crops on water which need very fewer space rather soil. In addition, we can recycle this water and use it as drinking water. Moreover, the growing plants would absorb CO2 and produced fresh air in the spacecraft.
In addition, the professor disagrees with this idea that the presence of people in the zero-gravity environment on mars produced health problems that cannot aviod. She says that today astronauts spend a long time on space on zero-gravity and this condition did not create serious health damage to them. astronauts can through regular exercise decrease the rate of losing muscle mass, and by consuming calcium, they can reduce the speed of losing bone density.
Finally, in the text, it is stated that the astronauts would be exposed to the very dangerous solar radiation. The professor subscribes that sun occasionally produce those particular dangerous radiations and we can use some instruments to monitor radiation and astronauts do their activities in the unshielded portion until the dangerous radiation pass from other parts.
| Post date | Users | Rates | Link to Content |
|---|---|---|---|
| 2020-01-20 | f.jafary66@gmail.com | 80 | view |
| 2020-01-18 | naziii | 3 | view |
| 2020-01-07 | 3dra | 3 | view |
| 2019-12-27 | Amirreza97 | 3 | view |
| 2019-12-16 | jeffhjz | 3 | view |
- Nowadays children rely too much on the technology like computers smart phone video games for fun and entertainment Playing simpler toys or playing outside with friends would be better for the children s development 62
- TPO-45 63
- Do you agree or disagree with the following statement?Educating children is a more difficult task today than it was in the past because they spend so much time on cellphone, online games, and social networking Web site.Use specific reasons and examples to 73
- one of the best ways that parents can help their children prepare for adult life is to encourage them to take a part-time job. 70
- TPO 49 73
Grammar and spelling errors:
Line 1, column 73, Rule ID: TO_NON_BASE[1]
Message: The verb after "to" should be in the base form: 'mar'.
Suggestion: mar
...ading passage discusses that journey to mars need to overcome some serious problems ...
^^^^
Line 7, column 304, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: Astronauts
...t create serious health damage to them. astronauts can through regular exercise decrease t...
^^^^^^^^^^
Transition Words or Phrases used:
but, finally, first, however, moreover, so, while, in addition, first of all
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 8.0 10.4613686534 76% => OK
Auxiliary verbs: 13.0 5.04856512141 257% => Less auxiliary verb wanted.
Conjunction : 11.0 7.30242825607 151% => OK
Relative clauses : 11.0 12.0772626932 91% => OK
Pronoun: 28.0 22.412803532 125% => Less pronouns wanted
Preposition: 33.0 30.3222958057 109% => OK
Nominalization: 9.0 5.01324503311 180% => OK
Performance on vocabulary words:
No of characters: 1433.0 1373.03311258 104% => OK
No of words: 277.0 270.72406181 102% => OK
Chars per words: 5.17328519856 5.08290768461 102% => OK
Fourth root words length: 4.07962216107 4.04702891845 101% => OK
Word Length SD: 2.66597148902 2.5805825403 103% => OK
Unique words: 158.0 145.348785872 109% => OK
Unique words percentage: 0.570397111913 0.540411800872 106% => OK
syllable_count: 428.4 419.366225166 102% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 5.0 3.25607064018 154% => OK
Article: 5.0 8.23620309051 61% => OK
Subordination: 1.0 1.25165562914 80% => OK
Conjunction: 3.0 1.51434878587 198% => OK
Preposition: 5.0 2.5761589404 194% => 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: 25.0 21.2450331126 118% => OK
Sentence length SD: 52.8648674913 49.2860985944 107% => OK
Chars per sentence: 130.272727273 110.228320801 118% => OK
Words per sentence: 25.1818181818 21.698381199 116% => OK
Discourse Markers: 6.90909090909 7.06452816374 98% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 2.0 4.19205298013 48% => OK
Sentences with positive sentiment : 3.0 4.33554083885 69% => OK
Sentences with negative sentiment : 7.0 4.45695364238 157% => OK
Sentences with neutral sentiment: 1.0 4.27373068433 23% => More facts, knowledge or examples wanted.
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.0585070723459 0.272083759551 22% => The similarity between the topic and the content is low.
Sentence topic coherence: 0.0215833552512 0.0996497079465 22% => Sentence topic similarity is low.
Sentence topic coherence SD: 0.024498481064 0.0662205650399 37% => Sentences are similar to each other.
Paragraph topic coherence: 0.0360878203057 0.162205337803 22% => Maybe some paragraphs are off the topic.
Paragraph topic coherence SD: 0.0251351966198 0.0443174109184 57% => OK
Essay readability:
automated_readability_index: 15.5 13.3589403974 116% => OK
flesch_reading_ease: 54.56 53.8541721854 101% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 11.9 11.0289183223 108% => OK
coleman_liau_index: 13.0 12.2367328918 106% => OK
dale_chall_readability_score: 8.81 8.42419426049 105% => OK
difficult_words: 69.0 63.6247240618 108% => OK
linsear_write_formula: 13.0 10.7273730684 121% => OK
gunning_fog: 12.0 10.498013245 114% => OK
text_standard: 13.0 11.2008830022 116% => OK
What are above readability scores?
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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.