题目

在做“研究充水玻璃管中气泡的运动规律”实验时，小明取长100cm的细玻璃管注满水，管中留一小气柱，将玻璃管反转后如图所示，观察气柱从A点运动到B点，这个过程中，气柱的运动情况如表（表中均以气柱上端移动的距离进行记录），下列说法正确的是（） 从A点开始的距离s/cm020406080 1cm高的气柱从A点开始的时间t/s03.67.210.814.4 2cm高的气柱从A点开始的时间t/s03.67.210.814.4 A . 从表格数据可知，气柱的平均速度与它的大小无关 B . 1cm高的气柱从A点开始 　　James Cleveland Owens was the son of a farmer and the grandson of black slaves．His family moved to Cleveland when he was 9．There, a school teacher asked the youth his name． 　　“J．C．,”he replied． 　　She thought he had said“Jesse”, and he had a new name． 　　Owens ran his first race at age 13．After high school, he went to Ohio State University．He had to work part time so as to pay for his education．As a second year student, in the Big Ten games in 1935, he set even more records than he would in the Olympic Games a year later． 　　A week before the Big Ten meet, Owens accidentally fell down a flight of stairs．His back hurt so much that he could not exercise all week, and he had to be helped in and out of the car that drove him to the meet．He refused to listen to the suggestions that he give up and said he would try, event by event．He did try, and the results are in the record book． 　　The stage was set for Owens victory at the Olympic Games in Berlin the next year, and his success would come to be regarded as not only athletic but also political．Hitler did not congratulate any of the African American winners． 　　“It was all right with me,”he said years later．“I didn't go to Berlin to shake hands with him, anyway．” 　　Having returned from Berlin, he received no telephone calls from the president of his own country, either．In fact, he was not honored by the United States until 1976, four years before his death． 　　Owens Olympic victories made little difference to him．He earned his living by looking after a school playground, and accepted money to race against cars, trucks, motorcycles and dogs． 　　“Sure, it bothered me,”he said later．“But at least it was an honest living．I had to eat．” 　　In time, however, his gold medals changed his life．“They have kept me alive over the years,”he once said．“Time has stood still for me．That golden moment dies hard．” (1) Owens got his other name“Jesse”when ________． [　　] A． he went to Ohio State University B． his teacher made fun of him C． his teacher took“J．C．”for“Jesse” D． he won gold medals in the Big Ten meet (2) In the Big Ten meet，Owens． [　　] A． hurt himself in the back B． succeeded in setting many records C． tried every sports event but failed D． had to give up some events (3) We can infer from the text that Owens was treated unfairly in the US at that time because． [　　] A． he was not of the right race B． he was the son of a poor farmer C． he didn't shake hands with Hitler D． he didn't talk to the US president on the phone (4) When Owens says“They have kept me alive over the years”, he means that the medals． [　　] A． have been changed for money to help him live on B． have made him famous in the US C． have encouraged him to overcome difficulties in life D． have kept him busy with all kinds of jobs (5) What would be the best title for the text? [　　] A． Jesse Owens, A Great American Athlete B． Golden Moment－A Life time Struggle C． Making A Living As A Sportsman D． How To Be A Successful Athlete