The diagram below shows how electricity s generated in a hydroelectric power station.
The image represents the process of generating electricity by water in a hydroelectric power station.
Overall, three main facilities are needed to produce electricity by taking advantage of the change of flows day and night, namely a dam, a sloping water tube and a power station.
In the first part, water from a river is restored in a high-level reservoir which is connected to the tube via an intake gate. The gate is open during the day and closed at night.
The water tube connects the up reservoir and the power station, linking to the low-level reservoir. The flow of water goes down through it, turns the reversible turbines and activates the generator in the daytime, generating electricity. At night, however, the turbines will pump the water up, using the same tube, to the high-level reservoir from the low-level one.
In the power station, the electricity that is produced by the generator is transferred to the national grid through power lines eventually.
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- 3 In the developed world average life expectancy is increasing What problems will this cause for individuals and society Suggest some measures that could be taken to reduce the impact of ageing populations 56
- We cannot help everyone in the world that needs help so we should only be concerned with our own communities and countries To what extent do you agree or disagree with this statement 67
- 7 The charts below show the main reasons for study among students of different age groups and the amount of support they received from employers 90
- in some countries owing a home rather than renting one is very important for people Why might this be the case Do you think this is a positive or negative situation 78
- Some people think that more genetically modified food should be produced to cope with the world s growing population Do you agree or disagree 78
Grammar and spelling errors:
Line 7, column 101, Rule ID: ENGLISH_WORD_REPEAT_BEGINNING_RULE
Message: Three successive sentences begin with the same word. Reword the sentence or use a thesaurus to find a synonym.
...on, linking to the low-level reservoir. The flow of water goes down through it, tur...
^^^
Transition Words or Phrases used:
first, however
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 6.0 7.0 86% => OK
Auxiliary verbs: 1.0 1.00243902439 100% => OK
Conjunction : 5.0 6.8 74% => OK
Relative clauses : 2.0 3.15609756098 63% => OK
Pronoun: 2.0 5.60731707317 36% => OK
Preposition: 27.0 33.7804878049 80% => OK
Nominalization: 4.0 3.97073170732 101% => OK
Performance on vocabulary words:
No of characters: 824.0 965.302439024 85% => OK
No of words: 162.0 196.424390244 82% => More content wanted.
Chars per words: 5.08641975309 4.92477711251 103% => OK
Fourth root words length: 3.56762134501 3.73543355544 96% => OK
Word Length SD: 2.82395095191 2.65546596893 106% => OK
Unique words: 86.0 106.607317073 81% => More unique words wanted.
Unique words percentage: 0.530864197531 0.547539520022 97% => OK
syllable_count: 261.9 283.868780488 92% => OK
avg_syllables_per_word: 1.6 1.45097560976 110% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 0.0 1.53170731707 0% => OK
Article: 7.0 4.33902439024 161% => OK
Subordination: 0.0 1.07073170732 0% => More adverbial clause wanted.
Conjunction: 0.0 0.482926829268 0% => OK
Preposition: 4.0 3.36585365854 119% => OK
Performance on sentences:
How many sentences: 8.0 8.94146341463 89% => OK
Sentence length: 20.0 22.4926829268 89% => OK
Sentence length SD: 34.5325932997 43.030603864 80% => OK
Chars per sentence: 103.0 112.824112599 91% => OK
Words per sentence: 20.25 22.9334400587 88% => OK
Discourse Markers: 1.75 5.23603664747 33% => More transition words/phrases wanted.
Paragraphs: 5.0 3.83414634146 130% => Less paragraphs wanted.
Language errors: 1.0 1.69756097561 59% => OK
Sentences with positive sentiment : 2.0 3.70975609756 54% => More positive sentences wanted.
Sentences with negative sentiment : 0.0 1.13902439024 0% => More negative sentences wanted.
Sentences with neutral sentiment: 6.0 4.09268292683 147% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.227081054838 0.215688989381 105% => OK
Sentence topic coherence: 0.125784402162 0.103423049105 122% => OK
Sentence topic coherence SD: 0.13506339653 0.0843802449381 160% => OK
Paragraph topic coherence: 0.179981192105 0.15604864568 115% => OK
Paragraph topic coherence SD: 0.140937376274 0.0819641961636 172% => OK
Essay readability:
automated_readability_index: 12.7 13.2329268293 96% => OK
flesch_reading_ease: 51.18 61.2550243902 84% => OK
smog_index: 8.8 6.51609756098 135% => OK
flesch_kincaid_grade: 11.1 10.3012195122 108% => OK
coleman_liau_index: 12.24 11.4140731707 107% => OK
dale_chall_readability_score: 8.23 8.06136585366 102% => OK
difficult_words: 37.0 40.7170731707 91% => OK
linsear_write_formula: 8.0 11.4329268293 70% => OK
gunning_fog: 10.0 10.9970731707 91% => OK
text_standard: 13.0 11.0658536585 117% => OK
What are above readability scores?
---------------------
Maximum four paragraphs wanted.
Rates: 73.0337078652 out of 100
Scores by essay e-grader: 6.5 Out of 9
---------------------
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.