《剑桥雅思7》Test 1 Reading passage 2 解析

　　Test 1
　　Reading passage 1
　　Question 14-20
　　题型： Locating information
　　Which paragraph contains the following information?

Q1:	examples of wildlife other than bats which do not rely on vision to navigate by
Answer:	B
Information in the text:	Paragraph B (line 2): Bats are not the only creatures to face this difficulty today. Obviously the night-flying insects that they prey on must find their way about somehow. Deep-sea fish and whales have…

Q2:	how early mammals avoided dying out
Answer:	A
Information in the text:	Paragraph A (line 8): …our mammalian ancestors probably only managed to survive at all because they found ways of scraping a living at night.

Q3:	why bats hunt in the dark
Answer:	A
Information in the text:	Paragraph A (line 4): 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.

Q4:	how a particular discovery has helped our understanding of bats
Answer:	E
Information in the text:	Paragraph E (line 6): … and much of our scientific understanding of the details of what bats are doing has come from applying radar theory to them.

Q5:	early military use of echolocation
Answer:	D
Information in the text:	Paragraph D (line 11): After this technique had been invented, it was only a matter of time before weapons designers adapted it for the detection of submarines.