Passage 1
57. D) It is an indispensable device on an airplane.
ward off指“避开,防止”。黑匣子并不能避免灾难发生,因此C选项不正确。indispensable,不能缺少的,文中多次举例黑匣子在事故发生后起到至关重要的作用,因此此选项正确。
58. A) Data for analyzing the cause of the crash.
本文第二段介绍了黑匣子在对于探寻Yemeni airliner坠毁原因上所起到的重大作用。由第二段第二行”the black box is the best bet for identifying what went wrong”以及后面由于法国一潜艇找到黑匣子这一发现”marked a huge step toward determining the cause of a tragedy”可以推断出答案。
59. C) The early models often got damaged in the crash.
文中第三自然段第三行,由”Early models often failed to withstand crashes, however, so in 1965 the device was completely redesigned…”可得知,1965年黑匣子重新设计的原因是之前的黑匣子在坠机时容易遭到破坏。withstand意为“承受,经受”。
60. C) To make them easily identifiable.
由文中得知黑匣子被漆成橙色或黄色的原因是” to aid visibility”。Visibility是visible的名词形式,意为“能见度,可见度”,因此,漆成橙色或黄色主要是因为希望黑匣子可见度高,比较明显,容易被发现,故选C。
61. A) There is still a good chance for their being recovered.
作者举出Air France Flight 447的例子主要是用来证明其前面的论点”When submerged, they’re also able to emit signals form depths of 20,000 ft.”意为黑匣子即使被埋于深处仍然能够发射信号以被察觉。Air France Flight 447的黑匣子处于水下深处,但数据显示他们仍能”turn up”(出现),即被探测人员发现。故选A。
n. 飞行,航班
n. 奇思妙想,一段楼