Summarize the points made in the lecture, being sure to explain how they respond to the specific points made in the reading passage.
Asteroids are large space objects made of rock and ice. There are hundreds of thousands of asteroids in our solar system. Though we often hear ideas about establishing colonies of humans to live and work on our Moon or our neighboring planet, Mars, some think that sending people to an asteroid would actually be the best colonization option for a number of reasons.
Low Gravity
To begin with, asteroids are often much smaller than planets, so they have lower gravity. When landing a spaceship, the craft would not be pulled as strongly or as forcefully toward the asteroid’s surface, making the landing safer than landing on the Moon or Mars; it would also allow a spacecraft to carry much more equipment needed to set up the colony. It would also be easier for the spacecraft to take off again, so the spaceship would need to carry considerably less fuel for the trip back to Earth.
Mining Valuable Metals
Next, some asteroids are rich in valuable elements and precious metals that are relatively rare on Earth, such as gold and platinum. An asteroid colony would be extremely profitable and a good source of these raw materials. The colonists or businesses sponsoring them could more than pay for the cost of their support by mining minerals and sending them back to Earth.
Easy to Reach
Finally, asteroids are a good option for colonization because some of them would be very easy to reach. There are a number of asteroids that periodically come within or near Earth’s orbit. Some of them actually get closer to Earth than our Moon. So these asteroids would be much easier and more affordable to get to and get back from than a planet like Mars, which would require a two-year trip in each direction.
The reading talks about 3 advanteges of establishing colonies of humans to an asteroid, while the listening holds an opposite opinion.
First of all, the reading states that low gravity of asteroids benefits to colonize an asteroid. Because it makes landing a spaceship more easily, for less power that pull the craft strongly. On the contray, the lecture shows the serious result of low gravity, which will lead to human's healthy problem. As we all know, after few months that spent in space, the astronants often suffer from varioius disease.
On top of that, the reading claims that valuable elements and precious metals on asteroids make as asteroid colony profitable. In the listening, however, the professor questions about the transportation and storage methods, which cost a lot and make the trip of low income.
Besides, the reading regards asterioids as an easier place to reach than elsewhere. Nevertheless, though it is obvious that asteroids get colser to Earth which makes it more affordable to get to, it is not a good option for colonization. This is because it takes much more effort to get back, as those asteroids' orbits are always away from Earth after one point and make it a chanllenge to get back to Earth.
| Post date | Users | Rates | Link to Content |
|---|---|---|---|
| 2022-08-26 | Liting Mai | 75 | view |
| 2022-01-19 | hellozxc | 71 | view |
| 2020-08-12 | YIngxin Zhang | 80 | view |
| 2020-03-13 | Harperchan1997 | 3 | view |
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Transition Words or Phrases used:
besides, first, however, nevertheless, so, while, first of all, on top of that
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 4.0 10.4613686534 38% => More to be verbs wanted.
Auxiliary verbs: 1.0 5.04856512141 20% => OK
Conjunction : 4.0 7.30242825607 55% => More conjunction wanted.
Relative clauses : 9.0 12.0772626932 75% => More relative clauses wanted.
Pronoun: 15.0 22.412803532 67% => OK
Preposition: 28.0 30.3222958057 92% => OK
Nominalization: 2.0 5.01324503311 40% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 1030.0 1373.03311258 75% => OK
No of words: 207.0 270.72406181 76% => More content wanted.
Chars per words: 4.97584541063 5.08290768461 98% => OK
Fourth root words length: 3.79308509922 4.04702891845 94% => OK
Word Length SD: 2.67020873768 2.5805825403 103% => OK
Unique words: 129.0 145.348785872 89% => More unique words wanted.
Unique words percentage: 0.623188405797 0.540411800872 115% => OK
syllable_count: 314.1 419.366225166 75% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 2.0 3.25607064018 61% => OK
Article: 7.0 8.23620309051 85% => OK
Subordination: 6.0 1.25165562914 479% => Less adverbial clause wanted.
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 4.0 2.5761589404 155% => OK
Performance on sentences:
How many sentences: 10.0 13.0662251656 77% => 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: 20.0 21.2450331126 94% => OK
Sentence length SD: 27.2508715457 49.2860985944 55% => The essay contains lots of sentences with the similar length. More sentence varieties wanted.
Chars per sentence: 103.0 110.228320801 93% => OK
Words per sentence: 20.7 21.698381199 95% => OK
Discourse Markers: 7.8 7.06452816374 110% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 0.0 4.19205298013 0% => OK
Sentences with positive sentiment : 4.0 4.33554083885 92% => OK
Sentences with negative sentiment : 4.0 4.45695364238 90% => 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: 0.121715462837 0.272083759551 45% => OK
Sentence topic coherence: 0.0485181260174 0.0996497079465 49% => OK
Sentence topic coherence SD: 0.0429540575957 0.0662205650399 65% => OK
Paragraph topic coherence: 0.0730993665857 0.162205337803 45% => OK
Paragraph topic coherence SD: 0.00720612356832 0.0443174109184 16% => Paragraphs are similar to each other. Some content may get duplicated or it is not exactly right on the topic.
Essay readability:
automated_readability_index: 12.4 13.3589403974 93% => Automated_readability_index is low.
flesch_reading_ease: 59.64 53.8541721854 111% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 9.9 11.0289183223 90% => OK
coleman_liau_index: 11.6 12.2367328918 95% => OK
dale_chall_readability_score: 9.05 8.42419426049 107% => OK
difficult_words: 58.0 63.6247240618 91% => OK
linsear_write_formula: 7.5 10.7273730684 70% => OK
gunning_fog: 10.0 10.498013245 95% => OK
text_standard: 10.0 11.2008830022 89% => OK
What are above readability scores?
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Rates: 75.0 out of 100
Scores by essay e-grader: 22.5 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.