問題詳情
<2>In the Hollywood film Twister (1996), a group of scientists chased tornados closeenough to drop a “Dorothy” device, which scattered sensors into the heart of twisters tomeasure their power. The film was loosely based on a real, far less successful, scienceproject.But next month the biggest tornado-chasing project in history will go much farther thanTwister. Dozens of scientists will be armed with an array of instruments – radar mountedon trucks, lasers, unmanned flying drones, mobile weather stations, weather balloons, andmuch else. They will venture out across a broad swath of Tornado Alley, the heart of theUS where powerful tornados most often strike, and surround thunderstorms with theirinstruments to find out how tornados form.The basics are known. A clash of warm humid air and cool air erupts into violentthunderstorms. If the winds high up in the storm blow at different speeds or from differentdirections, they can send the storm spinning like a whirling top, and a funnel of spinning airdrops to the ground as a tornado. The most powerful tornados come from thunderstorms called supercells, which alsohave the power to unleash torrents of rain, huge hailstones, and violent gusts of wind. Butcrucial questions remain – why do so few supercells spawn tornados? And why doapparently similar storms produce weak or strong tornados? The answers will help toimprove tornado warnings and save lives.
【題組】48. Where will you probably find this article?
(A) In a newspaper.
(B) In a short story.
(C) In a TV magazine.
(D) In a travel brochure.
參考答案
答案：A
難度：適中0.444444
統計：A(8),B(3),C(6),D(0),E(0)