《剑桥雅思7》Test 1 Reading passage 2 解析

　　Questions 6-9
　　Summary
　　Complete the summary below.
　　Choose ONE WORD ONLY from the passage for each answer.

Q6:	In fact, the sensation is more similar to the way in which pain from a 6........................ arm or leg might be felt.
Answer:	phantom
Information in the text:	Paragraph D (line 6): … although the sensation may be referred to the front of the face, like the referred pain in a phantom limb.

Q7:	arm or leg might be felt. The ability actually comes from perceiving 7........................through the ears.
Answer:	echoes/obstacles
Information in the text:	Paragraph D (line 7): The sensation of facial vision, it turns out, really goes in through the ears. 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.

Q8:	However, even before this was understood, the principle had been applied in the design of instruments which calculated the 8........................of the seabed.
Answer:	depth
Information in the text:	Paragraph D (line 9): 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.

Q9:	This was followed by a wartime application in devices for finding 9.........................
Answer:	submarines
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.