The Desolenator: producing clean water- Reading Answers Explanations- CAM 15
Here are explanations of the Questions of passage named ‘The Desolenator: producing clean water’ which is from the Cambridge 15 book. The Questions that have been asked are ‘List of headings’ and ‘ Summary Blanks’. You will find the locations of the Reading Answers, Keywords(highlighted and underlined) and justifications.
| Question | Answer |
| 14 | III |
| 15 | VI |
| 16 | V |
| 17 | X |
| 18 | IV |
| 19 | VIII |
| 20 | I |
| 21 | WHEELS |
| 22 | FILM |
| 23 | FILTER |
| 24 | WASTE |
| 25 | PERFORMANCE |
| 26 | SERVICING |
Questions 14-20
Reading Passage 2 has nine paragraphs, A-H
Choose the correct heading for each section from the list of headings below
Write the correct number, i-x, in boxes 14-20 on your answer sheet.
List of Headings
i Getting the finance for production
ii An unexpected benefit
iii From initial inspiration to new product
iv The range of potential customers for the device
v What makes the device different from alternatives
vi Cleaning water from a range of sources
vii Overcoming production difficulties
viii Profit not the primary goal
ix A warm welcome for the device
x The number of people affected by water shortages
14 Section A
Location: A section (whole section)
Explanation: The writer says, ‘Travelling around Thailand…impressed with the basic rooftop solar heating systems…’Here ‘impressed’ and ‘inspiration’ are synonyms. Moreover, the reference of new product is there in the last line of the paragraph. ‘Janssen developed that basic idea…portable device that uses the power from the sun…’Here ‘portable device’ refers to a new product.
Answer: iii
15 Section B
Location: B section (First line)
Explanation: The answer to this question is in the first line of the paragraph. ‘The Desolenator operates as a desalination unit that can take water from different water places, such as the sea, rivers, boreholes and rain…’Here ‘desalination’ means cleaning of water’. Moreover, ‘sea, rivers, boreholes and rain are sources of water. Thus, this makes an answer very clear.
Answer: vi
16 Section C
Location: C section (First line)
Explanation: The location of the answer is in the first two lines of the paragraph. ‘The Desolenator can produce 15 litres of drinking water…Its main selling point is that unlike standard desalination techniques, it doesn’t require generated water supply…’Here this device just require sunlight so this is different from other devices.
Answer: V
17 Section D
Location: D section (First line)
Explanation: The writer says, ‘A recent analysis found that at least two-thirds of the world’s population lives with severe water scarcity…’In this statement, ‘two-thirds of the world’s population’ is the number of people. Furthermore, ‘scarcity’ and ‘shortage’ are synonyms. Thus, it is easy to find an answer.
Answer: x
18 Section E
Location: E section (First line)
Explanation: The answer to this question is again in the first line of the paragraph. ‘The device is aimed at a wide variety of users-from homeowners in the developing world …people living in rural parts of the US…’Here, ‘wide variety of users give reference to the range of potential users. Moreover, ‘homeowners… and people from rural areas’ are some of the users.
Answer: iv
19 Section F
Location: F section (Third line)
Explanation: The writer says, ‘we are venture with a social mission…product we have envisioned is mainly finding application…’Here ‘social mission’ means their primary goal is to give benefit to society instead of earning profits…’Thus, this makes an answer very clear.
Answer: viii
20 Section G
Location: G section ( First line and last line)
Explanation: The location of the answer is in the second line of the paragraph. ‘It has raised 340,000 in funding so far…’Here ‘funding’ and ‘finance’ are synonyms. Moreover, ‘raised…’ means ‘getting the finance…’
Answer: i
The Desolenator: producing clean water- Reading Answers Explanations- CAM 15
Questions 21-26
Complete the summary below.
Choose ONE WORD ONLY from the passage for each answer.
Write your answers in boxes 21-26 on your answer sheet.
How the Desolenator works
The energy required to operate the Desolenator comes from sunlight. The device can be used in different locations, as it has 21………………… .
Location: C section
Explanation: The main keyword ‘sunlight’ helps to locate the answer in the third line of the paragraph. ‘It measures 120 cm by 90 cm, and it is easy to transport, thanks to its two wheels…’Here ‘easy to transport’ has been written as ‘device that can be used on different locations..’ in the question.
Answer: Wheels
Water is fed into a pipe, and a 22………………….. of water flows over a solar panel. The water then enters a boiler, where it turns into steam.
Location: C section
Explanation: The main keyword ‘solar panel’ helps to locate the answer in the fourth line of the paragraph. ‘Water enters through a pipe and flows as a thin film between a sheet of double gazing…the surface of a solar panel….’.Firstly, ‘Fed into a pipe’ is visible as ‘enters through a pipe…’ in the passage. Secondly, ‘over a solar panel’ has been written as ‘the surface of a solar panel…’
Answer: Film
Any particles in the water are caught in a 23…………………
Location: C section
Explanation: The answer to this question is in the middle line of the paragraph. The line start, ‘The device has a very simple filter to trap particles…’Here ‘trap’ and ‘caught’ are synonyms. Thus, this makes an answer very clear.
Answer: Filter
The purified water comes out through one tube, and all types of 24………………… come out through another.
Location: C section
Explanation: The main keyword ‘purified water’ has been written as ‘distilled water’ in the second last line of the paragraph. The writer says, ‘There are two tubes for liquid coming out: one for waste…another for the distilled water…’.Thus, the answer is ‘waste’
Answer: Waste
A screen displays the 25………………… of the device
Location: C section
Explanation: The main keyword ‘ screen’ has been written exactly in the last line of the paragraph. ‘The performance of the unit is shown on an LCD screen…’ ‘Displays’ and ‘Shown’ are synonyms.
Answer: Performance
and transmits the information to the company so that they know when the Desolenator requires 26…………………. .
Location: C section
Explanation: The main keyword ‘company’ helps to locate the answer in the last line of the paragraph. The writer says, ‘transmitted to the company which provides servicing when necessary…’Here ‘necessary’ and ‘required’ are synonyms. Thus, the answer is ‘servicing’
Answer: Servicing
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