The article and the lecture are both about the possibility of sending humans to Mars in the future. While the writer points out some problems the Mars mission will have to face, the speaker seems to be certain that there are solutions to those problems.
First, in the reading, the author mentions the difficulty of bringing sufficient essentials to Mars since it takes at least two years to finish the trip. The lecturer claims this problem of food, water and oxygen supplies can be solved by using a technique called hydroponic. This means astronauts will be able to cultivate their own food crops in space. Moreover, not only can the water for watering the plants can be recycled to drinking water, but the plants themselves can convert the carbon-dioxide into fresh air.
Second, while the article shows concern about the health risks caused by zero-gravity environment of Mars, the speaker confidently states that the astronauts have learned how to cope with this problem. Specifically, they would regularly do exercises and take minerals such as calcium on a daily basis in order to reduce the effects of low gravity on muscle mass and bone density. As a result, astronauts have been able to go on several trips in the space with few serious medical problems.
Third, despite admitting that Mars travelers will be exposed to some level of space radiation, the lecturer also points out that they won't have to face this dangerous radiation all the time. In fact, solar radiation will only be active on Mars for certain times. To deal with this, some small special shields can be installed into the spaceship and protect the astronauts from space radiation when it comes. Therefore, the issues with radiation won't be of any concern.
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- TPO 51 integrated 90
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- TOEFL TPO 16 Integrated Writing Task 90
flaws:
No. of Words: 295 250
Write the essay in 20 minutes.
Attribute Value Ideal
Final score: 26 in 30
Category: Very Good Excellent
No. of Grammatical Errors: 0 2
No. of Spelling Errors: 3 2
No. of Sentences: 13 12
No. of Words: 295 250
No. of Characters: 1418 1200
No. of Different Words: 168 150
Fourth Root of Number of Words: 4.144 4.2
Average Word Length: 4.807 4.6
Word Length SD: 2.447 2.4
No. of Words greater than 5 chars: 94 80
No. of Words greater than 6 chars: 72 60
No. of Words greater than 7 chars: 44 40
No. of Words greater than 8 chars: 31 20
Use of Passive Voice (%): 0 0
Avg. Sentence Length: 22.692 21.0
Sentence Length SD: 6.999 7.5
Use of Discourse Markers (%): 0.692 0.12
Sentence-Text Coherence: 0.331 0.35
Sentence-Para Coherence: 0.572 0.50
Sentence-Sentence Coherence: 0.033 0.07
Number of Paragraphs: 4 4