Let’s Go Bats IELTS Reading Answers
The Academic passage ‘Let’s Go Bats’ is a reading passage that appeared in an IELTS Test. Read the passage below and answer questions 1 – 13. Beyond the questions, you will find the answers along with the location of the answers in the passage and the keywords that help you find out the answers.
Let’s Go Bats
Answers
| Question number | Answer | Keywords | Location of keywords |
|---|---|---|---|
| 1 | B | Bats have an engineering problem, Bats are not the only creatures to face this difficulty, the night-flying insects, Deep-sea fish and whales have little or no light by day or by night. Fish and dolphins that live in extremely muddy water cannot see, Plenty of other modern animals | The whole of paragraph B |
| 2 | A | In the time when the dinosaurs dominated the daytime economy, our mammalian ancestors probably only managed to survive at all because they found ways of scraping a living at night. | Paragraph A;
Line 7 |
| 3 | A | Given that there is a living to be made at night, and given that alternative daytime trades are thoroughly occupied, natural selection has favoured bats that make a go of the night-hunting trade. | Paragraph A;
Line 5 |
| 4 | E | The American zoologist Donald Griffin, who was largely responsible for the discovery of sonar in bats, coined the term ‘écholocation’ to cover both sonar and radar, whether used by animals or by human instruments. | Paragraph E; Last line |
| 5 | D | technique, invented, weapons designers adapted it for the detection of submarines. both sides in the Second World War relied heavily on these devices, under such codenames as Asdic (British) and Sonar (American), as well as Radar (American) or RDF (British), which uses radio echoes rather than sound echoes. | Paragraph D;
Lines 7 – 8 |
| 6 | phantom | Experiments showed that, in fact, facial vision is nothing to do with touch or the front of the face, although the sensation may be referred to the front of the face, like the referred pain in a phantom limb. | Paragraph D;
Line 5 |
| 7 | echoes/obstacles | Blind people, without even being aware of the fact, are actually using echoes of their own footsteps and of other sounds, to sense the presence of obstacles. | Paragraph D;
Line 6 |
| 8 | depth | Before this was discovered, engineers had already built instruments to exploit the principle, for example to measure the depth of the sea under a ship. | Paragraph D; Line 7 |
| 9 | submarines | After this technique had been invented, it was only a matter of time before weapons designers adapted it for the detection of submarines | Paragraph D;
Line 8 |
| 10 | Natural selection | The Sonar and Radar pioneers didn’t know it then, but all the world now knows that bats, or rather natural selection working on bats, had perfected the system tens of millions of years earlier | Paragraph E;
Line 1 |
| 11 | Radio waves/echoes | It is technically incorrect to talk about bat ‘radar’, since they do not use radio waves | Paragraph E;
Line 2 |
| 12 | Mathematical theories | It is sonar. But the underlying mathematical theories of radar and sonar are very similar; | Paragraph E;
Line 3 |
| 13 | zoologist | The American zoologist Donald Griffin, who was largely responsible for the discovery of sonar in bats, | Paragraph E;
Line 4 |
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