‘Tidal power’ – Reading Answer Explanation – CAM – 9
Here are explanations of the Questions of passage named, ‘Tidal power’ which is from the Cambridge 9 book. The Questions that have been asked are Finding information, Summary Blanks and MCQs’. You will find the locations of the Reading Answers, Keywords(highlighted and underlined) and justifications.
READING PASSAGE 2: Tidal Power
| Question | Answer |
| 14 | C |
| 15 | E |
| 16 | A |
| 17 | C |
| 18 | A, D, E, F, J ( IN EITHER ORDER) |
| 19 | A, D, E, F, J ( IN EITHER ORDER) |
| 20 | A, D, E, F, J ( IN EITHER ORDER) |
| 21 | A, D, E, F, J ( IN EITHER ORDER) |
| 22 | A, D, E, F, J ( IN EITHER ORDER) |
| 23 | MAINTENANCE |
| 24 | SLOW( TURNING) |
| 25 | LOW PRESSURE |
| 26 | CAVITATION |
Questions 14-17
The Reading Passage has six paragraphs, A-F.
Which paragraph contains the following information?
Write the correct letter, A-F in boxes 14-17 on your answer sheet.
NB. You may use any letter more than once.
14. the location of the first test site
Location and Answer: C
Explanation: The answer to this question is in the second line of the paragraph. ‘The first station is expected to be installed off Lynmouth in Devon shortly to test the technology in a venture jointly funded by the department of Trade and Industry and the European Union. …’ Here, ‘first station’ and ‘first site’ means the same. In addition, ‘Lynmouth’ is the location.
15. a way of bringing the power produced on one site back into Britain
Location and Answer: E
‘Tidal power’ – Reading Answer Explanation – CAM – 9
Explanation: The writer says, ‘Dr Baha has done most work on the Alderrney site, where there are powerful currents. The single undersea turbine farm would produce far more power than needed for the Channel Islands and most would be fed into the French Grid and be re-imported into Britain via the cable under the Channel…’ Here, ‘back into Britain’ and ‘re-imported’ means the same. Moreover, ‘undersea turbine farm’ give reference to ‘a way of bringing the power’. Thus, the answer is clear.
‘Tidal power’ – Reading Answer Explanation – CAM – 9
16. a reference to a previous attempt by Britain to find an alternative source of energy
Location and Answer: A
Explanation: The location of the answer is in the last line of the paragraph. ‘Unlike wind power which Britain originally developed and then abandoned for 20 years allowing the Dutch to make it a major industry, undersea turbines could become a big export earner to island nations such as Japan and New Zealand…’ Here, the writer states that Britain originally developed wind power as an alternative use of energy and then abandoned it.
‘Tidal power’ – Reading Answer Explanation – CAM – 9
17. mention of the possibility of applying technology from another industry
Location and Answer: C
Explanation: The main keyword is ‘technology’ helps to find an answer is in the fourth line of the paragraph. ‘The technology for dealing with the hostile saline environment under the sea has been developed in the North Sea oil industry and much is already known about turbine blade design, because of wind power and ship propellers…’ Here, ‘North Sea oil industry’ refers to the another industry. Thus, the answer is clear.
Questions 18-22
Choose FIVE Letters, A-J.
Write the correct letters in boxes 18-22 on your answer street.
Which FIVE of the following claims about tidal power are made by the writer?
A. It is a more reliable source of energy than wind power.
B. It would replace all other forms of energy in Britain.
C. Its introduction has come as a result of public pressure.
D. It would cut down on air pollution.
E. It could contribute to the closure of many existing power stations ln Britain.
F. It could be a means of increasing national income.
G. It could face a lot of resistance from other fuel industries.
H. It could be sold more cheaply than any other type of fuel.
I. It could compensate for the shortage of inland sites for energy production.
J. It is best produced in the vicinity of coastlines with particular features.
‘Tidal power’ – Reading Answer Explanation – CAM – 9
Location: A paragraph
Explanation: (18) The location of the answer is in the second line of the paragraph. ‘but, unlike the wind, the tides are predictable and the power input is constant…’ Here, the writer says that tides are predictable and the power input is constant unlike winds. That means these are more reliable as compare to wind. Thus, A option is correct.
Answer: A
Explanation: (19) The writer says in the next line, ‘The technology raises the prospect of Britain becoming self-sufficient in renewable energy and drastically reducing its carbon dioxide emissions, if tide, wind and wave power are all developed…’Here, ‘cut down’ and ‘reduce’ means the same. In addition, ‘reducing its carbon dioxide emissions’ is directly related to ‘cut down air pollution’.
Answer: D
‘Tidal power’ – Reading Answer Explanation – CAM – 9
Explanation: (20) In third line, ‘ Britain would be able to close gas, coal and nuclear power plants and export renewable power to other parts of Europe…’ Here, ‘power plants’ and ‘power station’ means the same.
Answer: E
Explanation: (21) In last line, ‘undersea turbines could become a big export earner to island nations such as Japan and New Zealand…’ Here, ‘ a big export earner’ means ‘it could increase national income’. Thus, the answer is F.
Answer: F
‘Tidal power’ – Reading Answer Explanation – CAM – 9
Location: (22) C paragraph
Explanation: The answer to this question is in the last line of the paragraph. ‘The best sites are between islands or around heavily indented coasts where there are strong tidal currents…’ Here, ‘strong tidal currents’ refers to the particular feature. Also, ‘best sites’ and ‘best produced in vicinity’ means the same. Thus, the answer is J.
Answer: J
Questions 23-26
Label the diagram below.
Choose NO MORE THAN TWO WORDS from the passage for each answer.
Write your answers in boxes 23-26 on your answer sheet.
23. Whole tower can be raised for…..and the extraction of seaweed from the blades
Location: D paragraph,
Explanation: The writer says in the last line of the paragraph. ‘The towers will stick out of the water and be lit, to warn shipping, and also be designed to be lifted out of the water for maintenance and to clean seaweed from the blades…’ Here, ‘be raised’ and ‘be lifted’ are synonyms.
Furthermore, ‘ the extraction of seaweed’ has been written as ‘to clean seaweed from the blades…’ in the paragraph. Hence, the answer is clear.
Answer: Maintenance
‘Tidal power’ – Reading Answer Explanation – CAM – 9
24. Sea life not in danger due to the fact that blades are comparatively…
Location: D paragraph
Explanation: The location of the answer is in the fourth line of the paragraph. ‘Fish and other creatures are thought unlikely to be at risk from the relatively slow-turning blades…’ Here, ‘sea life’ is visible as ‘fish and other creatures…’ in the paragraph. Moreover, ‘relatively’ and ‘comparatively’ are synonyms. Thus, the answer is ‘Slow- turning’
Answer: Slow-turning
‘Tidal power’ – Reading Answer Explanation – CAM – 9
25-26. Air bubbles result from the 25…behind blades. this is known as 26…
Location: Last paragraph,
Explanation: The main keyword ‘air bubbles’ helps to find an answer in the beginning of the paragraph. ‘One technical difficulty is cavitation, where low pressure behind a turning blade causes air bubbles…’ Here, ‘causes from’ and ‘result’ means the same.
Answer: (25) Low pressure
(26). Cavitation
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