欢迎来到【托福每日词汇】，这不是普普通通的单词哦，是带例句拓展的那种呢！是带习题和答案的那种呢！快来一起看看叭！

　　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。

　　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.

　　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

　　练习答案：1.横梁；2.光束；3.绽放笑容

　　以上就是今日的托福词汇解析，希望对大家有所帮助。

（责任编辑：admin）

姓 名：

电 话：

我接受并同意《用户服务条款》和《隐私权相关政策》

免费预约