Have you ever heard of “flash mob(快闪族)”？ On July 12 th ,2009,at 5 pm, a lot of fans gathered at People’s Square I Shanhai to complete Michael Jackson’s unfinished dance in one minute.For a total of 60 seconds,they sang and did the moon walk to remember Michael Jackson. This kind of phenomenon( 现象)is called “flash mob”. “flash mob” is a group of people who gather in a public place to perform a strange activity for a short time.Sometimes, all these people are friends,but usually they are strangers who find each other through the Internet or sending short messages using mobile phones. It’s interesting how “flash mob” activities are planned.Without technology–the Internet or mobile phones,it would be impossible to organize so many people in such a short time. “flash mob” is very surprising and strange.One of the popular“flash mob” activities was in Manhattan,New York City.Several hundred people gathered in a department store and each of the them told the salesperson that they would buy the style of carpet( 地毯)，and the salesperson didn’t know what to do. 小题1: What is “flash mob”? 小题2: What did a lot of fans do at People’s Square in Shanghai on July 12th, 2009? 小题3: Do the members of “flash mob” usually know each other very well? 小题4: How are so many people organized in such a short time? 小题5: What does the writer think of “flash mob”?