题目

执行下图的程序框图，如果输入的，那么输出的的值为（ ）A. 17 B. 22 C. 18 D. 20  答案：【答案】D【解析】由题可知输出．故本题答案选．Today, roller-skating is easy and fun. But a long time ago, it wasn’t easy at all. Before 1750, no one had any ideas of roller-skating. That changed because of a man named Joseph Merlin. He liked to make things and play the violin in his free time. Joseph Merlin was a man of ideas and dreams. People called him a dreamer.One day Merlin was invited to a party. He was very pleased and a little excited. As the day of the party came near, Merlin began to think how to make an amazing entrance at the party. He had an idea. He thought everyone at the party would show much interest if he could skate into the room.Merlin tried different ways to make himself roll. Finally, he decided to put two wheels under each shoe. These were the first roller skates. Merlin was proud of his invention and dreamed of arrived at the party on wheels while playing the violin.On the night of the party Merlin rolled into the room playing his violin. Everyone was surprised to see him. There was just one problem. Merlin had no way to stop his roller skates. He rolled on and on. Suddenly, he ran into a huge mirror that was hanging on the wall. The mirror fell down, breaking into pieces. Merlin’s idea was so good that nobody forgot his special entrance for a long time. But could he find out a way to stop his roller skates?1.People thought Merlin was a dreamer because he______.A.dreamed day and nightB.liked making thingsC.was an interesting manD.was full of strange ideas2.Merlin wanted to ______, so he put wheels under his shoesA.play the violin wellB.arrive at the party soonerC.be taller than the othersD.surprise the people at the party3.What did the writer want to tell us in the last paragraph(段落)？A.Merlin made a lot of troubleB.Roller skates should be improvedC.The people were angry with MerlinD.Merlin was strong enough to break the mirror into pieces4.Which of the following is TRUE?A.Nothing happened to Merlin at the partyB.Merlin made a surprising entrance that dayC.No one noticed Merlin when he entered the roomD.Merlin couldn’t sleep well because he dreamed a lot