UFO-英语课件.pptVIP

A UFO in My Yard A UFO is technically an unidentified flying object . Background information Sightings of this unusual aerial phenomena date back to ancient times, but UFOs became widely discussed only after the first widely publicized U.S. sighting in 1947. Many thousands of such observations have since been reported worldwide.  At least 90 percent of UFO sightings can be identified as conventional objects, although time-consuming investigations are often necessary for such identification. New Words LearningPassage A emanate To come or send forth, as from a source: 发出，散发：散发或发射出，如从一个发射源： eg: light that emanated from a lamp;发自灯泡的光； a stove that emanated a steady heat; 散发出稳定热量的炉子 The rumor emanated from Chicago. 谣言来自芝加哥。 accelerate Vt Vi 加速; 催促, 促进; 增加(数量) eg: accelerated cement 快凝水泥 He decided to accelerate his advertising. 他决定增加广告的数量。 a substance used to accelerate a fire. 用以加大火势的物质 frantic 1) Highly excited with strong emotion or frustration; frenzied: 发狂似的：由于强烈的情感或巨大的挫折而高度兴奋的；发狂的： frantic with worry. 焦急得发狂 2) Characterized by rapid and disordered or nervous activity: 狂暴的：有急速并纷乱或紧张的行为特点的： made a frantic last-minute search for the lost key. 对丢失的钥匙做最后的紧张万分的寻找 illuminate 1)T o provide or brighten with light. 照明，照亮：给予光亮或用光使发亮 eg: The streets were illuminated for the celebration. 街道灯火通明以示庆祝。 2) To make understandable; clarify: 解释，说明：使某物能被理解；说清楚： eg: “Cleverly made attacks can often serve to illuminate important differences between candidates, as well as entertain the voters” “灵活的攻击往往能突出竞选者之间的重大区别，同时又能取悦于选民. fearsome1) Causing or capable of causing fear: 令人恐惧的：引起（或能够引起）恐惧的. eg: “The Devil is a fearsome enemy “魔鬼是可怕的敌人” a fearsome monster 可怕的怪物 2) 极大的 John had a fearsome sincerity. 约翰为人极为诚恳。 3) Fearful; timid. 恐惧的；怯懦的 a little fearsome beast 胆怯的小动物 hover 1) To remain floating, suspended, or fluttering in the air: （在空中）滑翔，悬浮，盘旋： eg: gulls hovering over the waves. 在浪尖盘旋的海鸥 2) To remain or linger in or near a place. 在某处或其附近逗留；徘徊： eg: hovering around the