The reading passage and the lecture have a discussion on the reasons that cause quackers. The article mentions three potential theories. On the contrary, the lecturer considers none of them would be persuasive with certainty.
To begin with, the author claims that the quacker is the call of the male and female orca whales. However, the opinion has been opposed by the professor with new evidence. The professor says that the position of the region does not match the area where orca whale appears. Also, If the whales are the species that is making the noise, the Russian submarine is likely to detect them in the first place. Thus, the opinion in the reading has been challenged heavily.
Moreover, the reading suggests that the quicker is made by the giant squid. On the other hand, the lecturer states that the Russian submarine discovered the sound in 1960, and the sound disappeared in 1980. The giant squid has lived in the region currently. As a result, the giant squid might not be the answer.
Moving to the last point, the author believes that the quacker was made by other military technology, while the professor in the listening material maintains that the sound was moving rapidly, a submarine is not capable to do so, In addition, the equipment's noise on the submarine would be detected by the Russian submarine.
Therefore, the speaker departs totally from the opinions on the topic made in the reading.
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flaws:
Number of Paragraphs: 5 4
better to have 4 paragraphs:
para 1: introduction
para 2: doubt 1
para 3: doubt 2
para 4: doubt 3
Attribute Value Ideal
Final score: 23 in 30
Category: Good Excellent
No. of Grammatical Errors: 1 2
No. of Spelling Errors: 3 2
No. of Sentences: 14 12
No. of Words: 242 250
No. of Characters: 1147 1200
No. of Different Words: 125 150
Fourth Root of Number of Words: 3.944 4.2
Average Word Length: 4.74 4.6
Word Length SD: 2.348 2.4
No. of Words greater than 5 chars: 80 80
No. of Words greater than 6 chars: 64 60
No. of Words greater than 7 chars: 38 40
No. of Words greater than 8 chars: 22 20
Use of Passive Voice (%): 0 0
Avg. Sentence Length: 17.286 21.0
Sentence Length SD: 11.259 7.5
Use of Discourse Markers (%): 0.714 0.12
Sentence-Text Coherence: 0.331 0.35
Sentence-Para Coherence: 0.6 0.50
Sentence-Sentence Coherence: 0.083 0.07
Number of Paragraphs: 5 4