noise是指人们不愿意听到的“噪音”；sound 泛指能听到的“声音”；voice 是指说话和唱歌的“嗓音”。如：[文章版权 禁止转载:考试与评价 c0MiQ {zzxaqFroG]

    Who's making the strange noise? 谁弄出那种怪声？[文章版权 禁止转载:考试与评价 .T^kzuu8[)1vj9fOFroG]

    Sound travels at 1，100 feet per second. 声音的速度是每秒钟一千一百英尺。[文章版权 禁止转载:考试与评价 u}[lt1/ -}TFroG]

    She has a good voice for singing. 她有一副唱歌的好嗓子。[文章版权 禁止转载:考试与评价 QH.Yb2Jc li9OPy:FroG]