Cambridge IELTS 15 Reading Test 2- AC
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Question 1 of 12
1. Question
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Question 2 of 12
2. Question
Professor George Church and his team are trying to identify the 18 which enabled mammoths to live in the tundra. The findings could help preserve the mammoth’s close relative, the endangered Asian elephant.
According to Church, introducing Asian elephants to the tundra would involve certain physical adaptations to minimise 19 . To survive in the tundra, the species would need to have the mammoth-like features of thicker hair, 20 of a reduced size and more 21
Repopulating the tundra with mammoths or Asian elephant/mammoth hybrids would also have an impact on the environment, which could help to reduce temperatures and decrease 22
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Question 3 of 12
3. Question
23 Reintroducing an extinct species to its original habitat could improve the health of a particular species living there.
24 It is important to concentrate on the causes of an animal’s extinction.
25 A species brought back from extinction could have an important beneficial impact on the vegetation of its habitat.
26 Our current efforts at preserving biodiversity are insufficient.
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Question 8 of 12
8. Question
The benefits of humour
In one study at Australian National University, randomly chosen groups of participants were shown one of three videos, each designed to generate a different kind of 32 . When all participants were then given a deliberately frustrating task to do, it was found that those who had watched the 33 video persisted with the task for longer and tried harder to accomplish the task than either of the other two groups.
A second study in which participants were asked to perform a particularly 34 task produced similar results. According to researchers David Cheng and Lu Wang, these findings suggest that humour not only reduces 35 and helps build social connections but it may also have a 36 Effect on the body and mind.
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Question 12 of 12
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