Music comes in many forms; most countries have a style of their own. 【B1】______ the turn of the century when jazz was born, America had no prominent 【B2】______ of its own. No one knows exactly when jazz was【B3】______, or by whom. But it began to be 【B4】______ in the early 1900s. Jazz is Americas contribution to 【B5】______ music. In contrast to classical music, which 【B6】______ formal European traditions, jazz is spontaneous and free form. It bubbles with energy, 【B7】______the moods, interests, and emotions of the people. In the 1920s jazz 【B8】______ like America, and 【B9】______ it does today. The【B10】______of this music are as interesting as the music【B11】______. American Negroes, or blacks, as they are called today, were the jazz【B12】______. They were brought to Southern States【B13】______slaves. They were sold to plantation owners and forced to work long【B14】______. When a Negro died his friend and relatives【B15】______a procession to carry the body to the cemetery. In New Orleans, a band often accompanied the【B16】______.On the way to the cemetery the band played slow, solemn music suited to the occasion.【B17】______on the way home the mood changed. Spirits lifted. Death had removed one of their【B18】______, but the living were glad to be alive. The band played【B19】______music, improvising on both the harmony and the melody of the tunes【B20】______at the funeral.This music made everyone want to dance. It was an early form of jazz.
单选题
【B1】
【正确答案】
B
【答案解析】解析：考查介词辨析。这里At the turn of the century表示的是“在本世纪初”这一具体时间，只有At可以用在这里。故选B．At。