as (1)作介词,意为作为,当作. He works in the TV station as a reporter. As a student, I should study hard. (2)作连词,意为当时,因为,由于,像那样. We always sing as we go home. We all believe him as he is an honest boy. My father is as ols as my mother. I want a job ____ an editor. A for B as C in D at for (1)介词,表示当作,作为. I ate eggs and bread for lunch. What do you have for breakfast? (2)表示理由或原因,意为因为,由于. I didnt go to school today, for it was cold. Thank you for talking to us. (3)表示去向,目的,意为向,往,取,买等. What did you come here for? We go out for a walk every evening. (4)表示动作的对象或接受者,意为给,对而言. My mother bought a book for me. Reading in the sun is bad for your eyes. (5)表示时间,距离,意为达,计. I stayed in Beijing for 2 months. Its bad ____ you to watch TV. A as B for C of D in talk |