Question

You never see him, but they're with you every time you fly. They record where you are going, how fast you're traveling and whether everything on your airplane is functioning normally. Their ability to withstand almost any disaster makes them seem like something out of a comic book. They're known as the black box.

When planes fall from the sky, as a Yemeni airliner did on its way to Comoros Islands in the India ocean June 30, 2009, the black box is the best bet for identifying what went wrong. So when a French submarine (潜水艇) detected the device's homing signal five days later, the discovery marked a huge step toward determining the cause of a tragedy in which 152 passengers were killed.

In 1958, Australian scientist David Warren developed a flight-memory recorder that would track basic information like altitude and direction. That was the first mode for a black box, which became a requirement on all U.S. commercial flights by 1960. Early models often failed to withstand crashes, however, so in 1965 the device was completely redesigned and moved to the rear of the plane – the area least subject to impact – from its original position in the landing wells (起落架舱). The same year, the Federal Aviation Authority required that the boxes, which were never actually black, be painted orange or yellow to aid visibility.

Modern airplanes have two black boxes: a voice recorder, which tracks pilots' conversations, and a flight-data recorder, which monitors fuel levels, engine noises and other operating functions that help investigators reconstruct the aircraft's final moments. Placed in an insulated ( 隔绝的) case and surrounded by a quarter-inch-thick panels of stainless steel, the boxes can withstand massive force and temperatures up to 2,000℉. When submerged, they're also able to emit signals from depths of 20,000 ft. Experts believe the boxes from Air France Flight 447, which crashed near Brazil on June 1,2009, are in water nearly that deep, but statistics say they're still likely to turn up. In the approximately 20 deep-sea crashes over the past 30 years, only one plane's black boxes were never recovered.

1. In Paragraph 1，the author wants to say the black box_________.

A. is an necessary device on an airplane

B. comes from a comic book

C. can prevent disasters

D. can control the function of an airplane

2.Why was the black box redesigned in 1965?

A. New materials became available by that time.

B.The early models often got damaged in the crash.

C.Too much space was needed for its device.

D. The early models didn't provide the needed data.

3. The black boxes were painted orange or yellow to_________.

A. distinguish them from the colour of the plane.

B. warn people to handle them with care

C. make them easily identified.

D. obey the international standards.

4.What do we know about the black boxes from Air France Flight 447?

A. There is still a good chance of their being recovered.

B. There is an urgent need for them to be reconstructed.

C. They have stopped sending homing signals.

D. They were destroyed somewhere near Brazil.

Answer

1.A

2.B

3.C

4.A

【解析】

试题分析：本文主要讲了“黑匣子”的一些相关事宜。

1.A细节题。由Their ability to withstand almost any disaster makes them seem like something out of a comic book. They’re known as the black box.可知其抵御灾害的能力是令人难以置信的，故2.倒数第二段Early moss often failed to withstand crashes, however, so in 1965 the device was completely redesigned…文中提到，早期的黑匣子经常抗不住空难的破坏(failed to withstand crashes)，因此在1965年，黑匣子重新设计(redesigned)，所以答案为B。

3.C细节理解题。根据第三段最后一句be painted orange or yellow to aid visibility. 被涂成橙色或黄色，以帮助能见度。故选C。

4.A推理判断题。最后一段Experts believe the boxes from Air France Flight 447, which crashed near Brazilon June 1,2009, are in water nearly that deep, but statistics say they're still likely to turn up. In the approximately 20 deep-sea crashes over the past 30 years, only one plane's black boxes were never recovered.文中提到，专家相信法航447号的黑匣子是在水下20000英尺的深度，接着指出，但是统计数据显示他们仍然可能出现，即有可能被找到，接下来的具体统计数据也进一步说明了这一点，所以答案为A。

【名师点睛】

本文主要讲了“黑匣子”的一些相关事宜。对于推理题的考查较多，在解答这类问题时要求学生抓住题干文字信息，采用针对性方法进行阅读，根据词义关系推断具体细节，结合上下文提供的语境和信息进行概括和判断。比如第22小题，细节理解题。根据倒数第二段Early moss often failed to withstand crashes, however, so in 1965 the device was completely redesigned…文中提到，早期的黑匣子经常抗不住空难的破坏(failed to withstand crashes)，因此在1965年，黑匣子重新设计(redesigned)，所以答案为B。

考点：考查科普类短文阅读