問：My father is an electric engineer. (我父親是電氣工程師。)
My mother has bought an electrical iron. (我媽媽買了一個電熨斗。)
有人說，這兩個句子都是錯誤的。 但不知錯誤在什麼地方。而electric和electrical有何分別？
答：應當牢牢記住：electric 是指“電產生的，電(带) 動的，帶電的”(produced by, worked by or charged with electricity) 或者“發電的”(producing electricity) ，例如，an electric light(電燈) , an electric fence (電網) , an electric generator (發電機) , electric power (電力, 電源) , an electric shock (電擊) , an electric clock (電鐘) , an electric guitar (電吉他) , anelectric current (電流) , an electric torch (手電筒筒) 。 而electrical 則是指“與電學有關的(人或物)”(related to the subject of electricity) , 例如, an electrical engineer (電氣工程師) , electrical apparatus (電器) , an electrical fault (電氣故障) , electrical engineering(電氣工程) , electrical equipment (電氣設備) 。
小練習：請選出正確的答案。
__________ are fed into a tape recorder, they magnetize the particles on the tape in varying patters.
A. Electric waves
B. When electric waves
C. Because of electric waves
D. Electric waves that