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 (潛水艇) 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（裝置） 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 (起落架艙). 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 ( 隔絕的) 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.From the black box on the Yemeni airliner_________could be found.

A. the scene of the crash and the degree of the damage

B. the total number of passengers on board

C. data for analyzing the cause of the crash

D. homing signals sent by the pilot before the crash

3.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.

4.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.

5.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

1.A

2.C

3.B

4.C

5.A

【解析】

試題分析：本文主要講的是黑匣子。他們記錄了你要去哪里，你的旅行是否你的飛機上的一切運作正常；幾乎能經受住任何災難，這就是黑匣子。當飛機失事時，黑匣子就是識別真相的有力證據。1958，澳大利亞科學家戴維Warren研發(fā)了一個飛行記錄器，高度、速度、方位等基本信息。這是黑盒子的開端。現代飛機有兩個黑盒子：一個錄音機，跟蹤飛行員的對話，和飛行數據記錄器，監(jiān)控燃料量，發(fā)動機的噪聲和其他的操作功能，幫助研究人員重建了飛機的最后時刻。耐壓耐高溫。在過去的三十年的深海里，只有一架飛機的黑匣子沒有恢復。

1.。從第一段中“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”句意：他們記錄了你要去哪里，你的旅行是否一切運作正常。他們幾乎能經受住任何災難，使它們看起來就像一本漫畫書�？梢钥闯龊谙蛔釉陲w機上的重要性，可以說是飛機上必不可少的設備。故選A。

2. black box is the best bet for identifying what went wrong.”以及“the discovery marked a huge step toward determining the cause of a tragedy in which 152 passengers were killed. ”意思是黑匣子是最好的賭注來識別到底是什么出了錯。該發(fā)現標志著對確定一個悲劇，152名乘客死亡原因的巨大的一步。可見黑匣子在分析事故原因起著很重要的作用。故選C。

3. 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,”那是黑匣子的第一個模型，1960年成為美國所有的商業(yè)航班要求。但是早期的模型往往無法承受撞擊。所以在1965年又被重新設計了。故選B。

4. painted orange or yellow to aid visibility. ”被刷成橙色或黃色來提高能見度。根據常識，我們知道在飛機失事時要找到黑匣子，黑匣子就一定要顯眼，所以刷成橙色和黃色容易會被人發(fā)現。故選C。

5. 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. ”句意：專家認為，法航447航班在2009年6月1日墜毀在巴西附近的黑匣子，在水中很深的地方，但統(tǒng)計數據說，他們仍然有可能會出現�？梢娛怯袡C會找到黑匣子并恢復的。故選A.。

考點：考查說明文閱讀。