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托福词汇beam beam 常考释义 1.n. 横梁 a long piece of wood, metal, etc. used to support weight, especially as part of the roof in a building 例句：The cottage had exposed oak beams. 小屋的橡木梁裸露着。 2.n. (物理)束, 光线 a line of light, electric waves or particles 例句：The car's headlights were on full beam(= shining as brightly as possible and not directed downwards) . 那辆汽车大开着前灯。 3.v. 绽放笑容 smile radiantly, express joy through one’s facial expression 例句：“Welcome back.”She beamed. 欢迎回来，她笑容满面地说。 音频中例句 1.A beam of light slices through the darkness. 一道光束划破了黑暗。 2.The ceilings are supported by oak beams. 天花板由橡木横梁支撑着。 3. a beam of delight 喜悦的笑容 练习 判断下列句子中beam的意思。 1.The doorways and windows are made possible by placing over the open spaces thick stone beams that support the weight from above. 2.You all know how when you take a crystal prism and pass a beam of sunlight through it, you get a spectrum. 3.The waitress beamed a cheerful welcome to the guests. (注： 练习答案下拉至底部可见) 拓展 1.词组： laser beam 激光束 electron beam 电子束 concrete beam 混凝土梁 2.习语： off the beam 脱离轨道，步入歧途 on the beam 在正确轨道上，行为端正  |
