Unit3 ALEXANDER GRAHAM BELL 亚历山大格雷厄姆贝尔 Alexander Graham Bell was born in 1847 in Scotland, but when he was young his family moved to Boston, USA.亚历山大格雷厄姆贝尔1847年出生于苏格兰。但在他还小的时候，他家就搬到了美国的波士顿。His mother was almost entirely deaf, so Alexander became interested in helping deaf people communicate and in deaf education.他的母亲几乎全聋了，因此他有志于帮助聋人交流，并从事聋人教育事业。This interest led him to invent the microphone. 这一爱好促使他发明了麦克风。He found that by pressing his lips against his mothers forehead, he
