Passage 1
57. D) It is an indispensable device on an airplane.
ward off指“避開,防止”。黑匣子并不能避免災(zāi)難發(fā)生,因此C選項不正確。indispensable,不能缺少的,文中多次舉例黑匣子在事故發(fā)生后起到至關(guān)重要的作用,因此此選項正確。
58. A) Data for analyzing the cause of the crash.
本文第二段介紹了黑匣子在對于探尋Yemeni airliner墜毀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”以及后面由于法國一潛艇找到黑匣子這一發(fā)現(xiàn)”marked a huge step toward determining the cause of a tragedy”可以推斷出答案。
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年黑匣子重新設(shè)計的原因是之前的黑匣子在墜機時容易遭到破壞。withstand意為“承受,經(jīng)受”。
60. C) To make them easily identifiable.
由文中得知黑匣子被漆成橙色或黃色的原因是” to aid visibility”。Visibility是visible的名詞形式,意為“能見度,可見度”,因此,漆成橙色或黃色主要是因為希望黑匣子可見度高,比較明顯,容易被發(fā)現(xiàn),故選C。
61. A) There is still a good chance for their being recovered.
作者舉出Air France Flight 447的例子主要是用來證明其前面的論點”When submerged, they’re also able to emit signals form depths of 20,000 ft.”意為黑匣子即使被埋于深處仍然能夠發(fā)射信號以被察覺。Air France Flight 447的黑匣子處于水下深處,但數(shù)據(jù)顯示他們?nèi)阅堋眛urn up”(出現(xiàn)),即被探測人員發(fā)現(xiàn)。故選A。
n. 飛行,航班
n. 奇思妙想,一段樓