A second attempt at domesticating the tomato- Reading Answer Explanations
Note- Before the students start solving this question which is from the Cambridge 17 official book of IELTS, it must be clear that there is a sense of chronological order which must be followed to solve the passage quicky. That too in a righteous manner. Students must solve ‘Complete the sentences’ first. Then, they should solve ‘matching the list of researchers’, followed by ‘Matching the information’.
| Question | Answer |
| 14 | C |
| 15 | B |
| 16 | E |
| 17 | A |
| 18 | C |
| 19 | B |
| 20 | D |
| 21 | A |
| 22 | C |
| 23 | A |
| 24 | FLAVOUR/ FLAVOR |
| 25 | SIZE |
| 26 | SALT |
Questions 14-18
Reading Passage 2 has five paragraphs, A-E.
Which section contains the following information?
Write the correct letter, A-E, in boxes 14-18 on your answer sheet.
NBÂ Â You may use any letter more than once.
14Â Â a reference to a type of tomato that can resist a dangerous infection.
Location and Answer: C paragraph
Explanation: The main keyword of the question is ‘resist a dangerous infection’ which is visible in C paragraph as ‘Resistant to a common disease’.. which is in the 2nd line of the paragraph. Therefore answer is C paragraph.
15Â Â an explanation of how problems can arise from focusing only on a certain type of tomato plant.
Location and Answer: B paragraph
Explanation: Talking about the problems of the focusing only on a certain type of tomato plant, references are in the B paragraph. Firstly, the writer says, ‘genetic diversity is lost’ in the middle of the paragraph. Secondly, he further elaborates as ‘desirable mutation comes with less desirable traits’ in the ending line of the Paragraph…Thus, problems are there in B paragraph of the passage.
16Â Â a number of examples of plants that are not cultivated at present but could be useful as food sources.
Location and answer: E
Explanation: The examples of the plants that are not cultivated are in the middle of the E paragraph. The line start as ‘the three teams already…. ‘‘plants that could be ‘catapulted into mainstream’, including foxtail, oat-grass and cowpea.’’ The examples are clearly visible in the middle of the E paragraph. Therefore, answer is E.
17Â Â a comparison between the early domestication of the tomato and more recent research
Location and Answer: A paragraph
Explanation: The main keyword of the question is ‘comparison’ which is visible in 1st paragraph. The examiner states ‘Early domestication’ from the question as ‘re-domestication’ in the 2nd line of the paragraph and ‘recent research’ is visible as ‘at present’ in the middle of it. Moreover, the writer says, ‘re-domesticated tomatoes are more nutritious than the one we eat at present’. This statement shows the comparison. Thus, answer is A paragraph.
18Â Â Â a personal reaction to the flavour of a tomato that has been genetically edited
Location and Answer: C paragraph
Explanation: The main keyword of the question is ‘genetically edited’ which helps to locate the answer in first line of the paragraph and it is visible as ‘editing a gene’…in the paragraph. Also, the question says about the personal reaction and it is seen as ‘They are quite tasty’…in the C paragraph.
Questions 19-23
Look at the following statements (Questions 19-23) and the list of researchers below.
Match each statement with the correct researcher, A-D.
Write the correct letter, A-D, in boxes 19-23 on your answer sheet.
NBÂ Â You may use any letter more than once.
19Â Â Domestication of certain plants could allow them to adapt to future environmental challenges.
Location: E paragraph
Explanation: The location of the answer is in the 4th line of the E Paragraph. The main keyword of the question is ‘Environmental challenges’ and examples of those challenges are in the passage as ‘By choosing wild plants that are drought or heat tolerant, says Gao’,…Here drought and heat tolerant are environmental challenges.
Answer: B
20Â Â The idea of growing and eating unusual plants may not be accepted on a large scale.
Location: E paragraph
Explanation: The location of the answer is in the 1st line of the E paragraph and it is visible as ‘boost the use of many obscure plants, ‘says Jonathan Jones. Here obscure is the synonym of unusual plants. Moreover, the writer says, ‘But it will hard for new foods to grow so popular’… in the second line which makes the answer very clear.
Answer: D
21Â Â It is not advisable for the future direction of certain research to be made public.
Location: E paragraph
Explanation: The location of the answer is in the 5th line of the E paragraph and it is visible as ‘But Kudla didn’t want to reveal which species were in team sights’…Here ‘to be made public’ in the question is paraphrased as ‘didn’t want to reveal’…in the paragraph. Thus, it confirms the answer.
Answer: A
22Â Â Present efforts to domesticate one wild fruit are limited by the costs involved.
Location:Â D paragraph
Explanation: The Main Keyword of the question is ‘wild fruit’ is in the paragraph. The location of the answer is in the second last line of the paragraph which is visible as ‘There is a potential…’, says Van Eck and adds ‘ taking the work further would be expensive…Here ‘cost involved ‘from the question is paraphrased as ‘expensive ‘in the paragraph.
Answer: C
23Â Â Humans only make use of a small proportion of the plant food available on Earth.
Location: 1st paragraph
Explanation: The location of the answer is in the second last line of the paragraph and it is visible as ‘This could transform what we eat’, says Jorg Kudla’… Furthermore, the writer says, ‘There are 50,000 edible plants in the world, but 90% of our energy comes from just 15 crops’.Here,15 refers to small proportion and the main keyword of the question ‘plant food’ is as ‘edible plants ’in the paragraph.
Answer: A
| List of Researchers AÂ Â Â Â Â Jorg Kudla BÂ Â Â Â Â Caixia Gao CÂ Â Â Â Â Joyce Van Eck DÂ Â Â Â Â Jonathan Jones |
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Questions 24-26
A second attempt at domesticating the tomato- Reading Answer Explanations
Complete the sentences below.
Choose ONE WORD ONLY from the passage for each answer.
Write your answers in boxes 24-26 on your answer sheet.
24  An undesirable trait such as loss of ……………………… may be caused by a mutation in a tomato gene.
Location: Â B paragraph
Explanation: The main keyword of the Question ‘mutation’ helps to locate the answer in the 4th line of the paragraph. The keyword of the question ‘undesirable’ is as ‘less desirable’ in the paragraph. ‘Loss of’ is as ‘lost much of’…which makes it very clear that answer is ‘ Flavour’
Answer: Flavour
25  By modifying one gene in a tomato plant, researchers made the tomato three times its original ………………………
Location: C paragraph
Explanation: The location of the answer is the 1st line of the paragraph. Firstly, the keyword of the question ‘modifying one gene’ is as ‘editing a gene’ in the paragraph. Secondly, the keyword ‘three times’ in the question is as ‘tripled the’…Therefore, it is easier to understand that answer is ‘size’
Answer: Size
26  A type of tomato which was not badly affected by ………………………, and was rich in vitamin C, was produce by a team of researchers in China.
Location: C paragraph
Explanation: The Main Keywords of the question ‘china’ and ‘vitamin C’ helps to locate the answer in the last line of the C paragraph. ‘Rich in vitamin C’ from the question is as ‘higher levels of vitamin C’ in the paragraph. Moreover, ‘not badly affected by…’from the question is as ‘tolerant’ which makes it clear that answer is ‘salt’
Answer: Salt
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