Children today are crazy about roller skating（溜冰）, for it's easy and fun. After supper on week days, anytime on weekends and especially any day in school holidays, so many roller skaters flow into streets, squares, parks and playgrounds. What a beautiful sight! But a long time ago, roller skating was a different story. Before 1750, the idea of skating didn't exist. That changed because of a man named Joseph Merlin，whose work was making musical instruments. In his spare time he liked playing the violin. Merlin was a man of ideas and dreams. People called him a dreamer. One day Merlin received an invitation to attend a fancy dress ball. Very pleased and a little excited, he accepted it. As the day of the party came near, Merlin began to think hard how to make an impressive entrance at the party. A strange idea struck him one day—he would get a lot of attention if he could skate into the room. He tried different ways to make himself roll. Finally, he decided to put two wheels under each shoe. These were the first roller skates. Very proud of his invention, he couldn't wait for the special day to come, when he would arrive at the party on wheels while playing the violin. On the night of the party Merlin did as he had planned, rolling into the room playing his violin. Quite astonished，all present cast their eyes over him. Then, unexpectedly, came 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. Down fell the mirror, breaking to pieces. Nobody forgot Merlin's grand entrance for a long time! 小题1:Merlin was considered a dreamer because he ________. A．always dreamed while sleeping B．had very rich imagination C．often gave others surprises D．invented the roller skates 小题2:Merlin roller skated into the room in order to ________. A．arrive at the party on time B．impress the party guests C．test his new roller skates D．make the host satisfied 小题3:The main point the writer tries to make in the last paragraph is ________. A．the party guests laughed at Merlin B．the roller skates needed improving C．Merlin got himself into great trouble D．Merlin succeeded beyond expectation 小题4:The text is mainly about ________. A．an unusual party B．a funny musician C．the origin of roller skating D．the great joy Merlin brought