The Salton Sea in California is actually a salty inland lake. The level of salt in the lake's water—what scientists call its salinity—has been increasing steadily for years because the lake's water is evaporating faster than it is being replaced by rainfall or rivers. If the trend continues, the lake's water will soon become so salty that the lake will be unable to support fish and bird populations. The lake would then become essentially a dead zone. Fortunately, there are several ways to reverse the trend that is threatening the lake's health.
One option is direct removal of salt from the lake's water in special desalination facilities. Water from the lake would be pumped into the facilities and heated. This would cause the water to evaporate into steam, while salt and other materials dissolved in the water would be left behind. The steam would then be cooled down and returned to the lake as salt-free water. Gradually, the high salt levels would be reduced and the lake’s overall health would be restored.
Another possible solution is to dilute the salt level in the lake with water from the ocean. Since water in the Pacific Ocean is 20 percent less salty than water in the lake, bringing ocean water into the lake would decrease the lake’s salinity. The ocean water could be delivered through pipelines or canals.
Yet another solution would be to control the lake's salinity by constructing walls to divide the lake into several sections. In the smaller sections, salinity would be allowed to increase. However, in the main and largest section, salinity would be reduced and controlled by, among other things, directing all the freshwater from small rivers in the area to flow into that main section of the lake.
题目音频：
The reading claims that there are several ways to reverse the trend that is threatening the lake's health. However, all the points in the reading are questioned by the listening, claiming that those methods are unpractical.
first, the reading claims that one option is direct removal of salt from the lake's water in special desalination facilities. By contrast, the lecture agures this idea doesn't work out, even if they desalinate those lake water, the stuff they extract aren't only salt, containing toxic chemical which is harmful for human if those chemical go into their body. Eventually in this way, the lecture challenges with the first point in reading.
Secondly, the reading states other solution is to dilute tha salt level in the lake with water feom ocean. While according to research, this is not the case. the listening presents it is very expensive to built a channel and canals. For the government to built a canal is hard, because they don't have that much money to support this program. The distance bewteen lake and ocean is quit far, like 100 km. Thus this is unlikely to make it becoming true.
Finally, the reading holds another solution is to dilute thesalt level in the lake with water from the ocean. By casting doubt on the third point in the reading, the professor points out it is unlikely to happen, because where the lake at often occur earthquark, those walls would break when the earthquark happened and would only last in the short term. when the walls break, those water containing high salinity or low salinity would mixed together again.
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- At the end of the Triassic period 200 million years ago, there was a mass-extinction event that caused the extinction of more than half of all living species. It was this extinction event that allowed dinosaurs to become the dominant species for the next 60
- In an effort to encourage ecologically sustainable forestry practices, an international organizationstarted issuing certifications to wood companies that meet high ecological standards by conservingresources and recycling materials. Companies that receive 73
- The Salton Sea in California is actually a salty inland lake. The level of salt in the lake's water—what scientists call its salinity—has been increasing steadily for years because the lake's water is evaporating faster than it is being repl 81
Grammar and spelling errors:
Line 1, column 93, Rule ID: POSSESIVE_APOSTROPHE[2]
Message: Possible typo: apostrophe is missing. Did you mean 'lakes'' or 'lake's'?
Suggestion: lakes'; lake's
...verse the trend that is threatening the lakes health. However, all the points in the ...
^^^^^
Line 3, column 1, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: First
...that those methods are unpractical. first, the reading claims that one option is ...
^^^^^
Line 3, column 168, Rule ID: EN_CONTRACTION_SPELLING
Message: Possible spelling mistake found
Suggestion: doesn't
... contrast, the lecture agures this idea doesnt work out, even if they desalinate those...
^^^^^^
Line 3, column 209, Rule ID: THIS_NNS[2]
Message: Did you mean 'this lake' or 'those lakes'?
Suggestion: this lake; those lakes
...oesnt work out, even if they desalinate those lake water, the stuff they extract arent onl...
^^^^^^^^^^
Line 3, column 250, Rule ID: EN_CONTRACTION_SPELLING
Message: Possible spelling mistake found
Suggestion: aren't
...hose lake water, the stuff they extract arent only salt, containing toxic chemical w...
^^^^^
Line 3, column 277, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...they extract arent only salt, containing toxic chemical which is harmful for huma...
^^
Line 5, column 159, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: The
...ding to research, this is not the case. the listening presents it is very expensive...
^^^
Line 5, column 292, Rule ID: EN_CONTRACTION_SPELLING
Message: Possible spelling mistake found
Suggestion: don't
... to built a canal is hard, because they dont have that much money to support this pr...
^^^^
Line 5, column 405, Rule ID: SENT_START_CONJUNCTIVE_LINKING_ADVERB_COMMA[1]
Message: Did you forget a comma after a conjunctive/linking adverb?
Suggestion: Thus,
...ake and ocean is quit far, like 100 km. Thus this is unlikely to make it becoming tr...
^^^^
Line 7, column 356, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: When
... and would only last in the short term. when the walls break, those water containing...
^^^^
Line 7, column 437, Rule ID: DID_BASEFORM[1]
Message: The verb 'would' requires the base form of the verb: 'mix'
Suggestion: mix
...ing high salinity or low salinity would mixed together again.
^^^^^
Transition Words or Phrases used:
finally, first, however, if, second, secondly, so, third, thus, while
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 14.0 10.4613686534 134% => OK
Auxiliary verbs: 3.0 5.04856512141 59% => OK
Conjunction : 4.0 7.30242825607 55% => More conjunction wanted.
Relative clauses : 9.0 12.0772626932 75% => More relative clauses wanted.
Pronoun: 22.0 22.412803532 98% => OK
Preposition: 33.0 30.3222958057 109% => OK
Nominalization: 5.0 5.01324503311 100% => OK
Performance on vocabulary words:
No of characters: 1316.0 1373.03311258 96% => OK
No of words: 268.0 270.72406181 99% => OK
Chars per words: 4.91044776119 5.08290768461 97% => OK
Fourth root words length: 4.04607285448 4.04702891845 100% => OK
Word Length SD: 2.32652769606 2.5805825403 90% => OK
Unique words: 156.0 145.348785872 107% => OK
Unique words percentage: 0.582089552239 0.540411800872 108% => OK
syllable_count: 396.0 419.366225166 94% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 3.0 3.25607064018 92% => OK
Article: 10.0 8.23620309051 121% => OK
Subordination: 5.0 1.25165562914 399% => Less adverbial clause wanted.
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 3.0 2.5761589404 116% => OK
Performance on sentences:
How many sentences: 14.0 13.0662251656 107% => OK
Sentence length: 19.0 21.2450331126 89% => OK
Sentence length SD: 56.9387873967 49.2860985944 116% => OK
Chars per sentence: 94.0 110.228320801 85% => OK
Words per sentence: 19.1428571429 21.698381199 88% => OK
Discourse Markers: 4.92857142857 7.06452816374 70% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 11.0 4.19205298013 262% => Less language errors wanted.
Sentences with positive sentiment : 7.0 4.33554083885 161% => OK
Sentences with negative sentiment : 4.0 4.45695364238 90% => OK
Sentences with neutral sentiment: 3.0 4.27373068433 70% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.199669994924 0.272083759551 73% => OK
Sentence topic coherence: 0.0670443905991 0.0996497079465 67% => OK
Sentence topic coherence SD: 0.0604732899875 0.0662205650399 91% => OK
Paragraph topic coherence: 0.116436249271 0.162205337803 72% => OK
Paragraph topic coherence SD: 0.0367658679867 0.0443174109184 83% => OK
Essay readability:
automated_readability_index: 11.3 13.3589403974 85% => Automated_readability_index is low.
flesch_reading_ease: 60.65 53.8541721854 113% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 9.5 11.0289183223 86% => OK
coleman_liau_index: 11.2 12.2367328918 92% => OK
dale_chall_readability_score: 8.17 8.42419426049 97% => OK
difficult_words: 61.0 63.6247240618 96% => OK
linsear_write_formula: 11.0 10.7273730684 103% => OK
gunning_fog: 9.6 10.498013245 91% => OK
text_standard: 11.0 11.2008830022 98% => OK
What are above readability scores?
---------------------
Rates: 81.6666666667 out of 100
Scores by essay e-grader: 24.5 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.