hce_cmu
104年
英文
第 30 題
One of the scariest videos on YouTube was recorded by the nose-cone camera of a fighter jet as it was taking off. 26 The pilot spends an agonizing 30 seconds or so trying to regain control, before issuing the order to eject, after which the viewer is treated to a shot of the onrushing ground before the screen goes blank.
Bird strikes are a problem—sometimes a fatal one—for military and civil aviation alike. America's Federal Administration reports that there are about 10,000 such strikes a year to the country's non-military aircraft, costing more than $957 million in damage and delays. 27
Moreover, though relatively few people have been killed in accidents caused by bird strikes, the potential for something horrible to happen is real—as was shown by one of the most famous strikes of recent years. 28 The passengers were saved only by the skill of the pilot, Chelsley Sullenberger, who managed to ditch the plane safely in the Hudson river.
At the moment, attempts to deal with the problem mostly involve efforts to cull flocks of the larger species—geese in particular—in the vicinity of airports, and also the use of bird scarers to try to drive off those actually sitting near runways. 29 There may, however, be a better way. For a decade or more the air forces of several countries have used radar to track birds which might threaten their aircraft. 30 If they work, the old methods of trying to scare birds away, or cull them, can be abandoned.
Choose the best answer from the box below for blank 30.
Bird strikes are a problem—sometimes a fatal one—for military and civil aviation alike. America's Federal Administration reports that there are about 10,000 such strikes a year to the country's non-military aircraft, costing more than $957 million in damage and delays. 27
Moreover, though relatively few people have been killed in accidents caused by bird strikes, the potential for something horrible to happen is real—as was shown by one of the most famous strikes of recent years. 28 The passengers were saved only by the skill of the pilot, Chelsley Sullenberger, who managed to ditch the plane safely in the Hudson river.
At the moment, attempts to deal with the problem mostly involve efforts to cull flocks of the larger species—geese in particular—in the vicinity of airports, and also the use of bird scarers to try to drive off those actually sitting near runways. 29 There may, however, be a better way. For a decade or more the air forces of several countries have used radar to track birds which might threaten their aircraft. 30 If they work, the old methods of trying to scare birds away, or cull them, can be abandoned.
Choose the best answer from the box below for blank 30.
- A Now, similar systems are being considered for civilian airports.
- B In 2009 an Airbus with 155 people on board hit a flock of geese when it was taking off from LaGuardia airport in New York.
- C As the figures suggest, these approaches do not work well.
- D Just after the plane leaves the runway a large bird comes hurtling towards it and vanishes into the aircraft's engine.
- E The world-wide figure is estimated by the European Space Agency to be $1.2 billion.
思路引導 VIP
請觀察第 30 題的前一句話，文中提到這項雷達技術目前是哪些單位（air forces）在運用？而整篇文章討論的對象僅限於這些單位嗎？如果最後一句話要得出「舊方法可以被全面廢除」的結論，那麼在第 30 題的空格處，我們需要補充什麼樣的資訊，才能讓這項技術從「軍事用途」跨越到「一般大眾的飛安」呢？
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AI 詳解
AI 專屬家教
太棒了！你能精準捕捉到段落間的邏輯遞進，選擇 (A) 作為答案是非常明智且正確的判斷。
科技應用的邏輯橋樑
這道題目的核心在於**「轉折後的範疇擴展」。在最後一段中，作者先提到目前「驅趕」或「撲殺」鳥類的方法成效有限，隨即轉而介紹一個「更好的方法」。文中指出各國「空軍」（air forces）已經使用雷達追蹤鳥類十多年，這屬於軍事領域的應用。而選項 (A) 提到「現在，類似的系統正被考慮用於民用機場**（civilian airports）」，正好完美填補了從軍事科技轉化為通用航空解決方案的空缺，使最後一句話「如果它們（這些系統）奏效，舊方法便能被捨棄」顯得順理成章。
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