问题补充：
On July 12th, , at 5 pm, a lot of fans met at People’s Square in Shanghai. They performed Michael Jackson’s unfinished dance. For one minute, they sang and did the moon walk (太空步) to remember Michael Jackson.
This kind of phenomenon (现象) is called “flash mob (快闪族)”. “Flash mob” is a group of people who meet in a public place to perform an activity for a short time. Sometimes all these people are friends, but usually they are strangers (陌生人) and they find each other (彼此) on the Internet.
“Flash mob” is very surprised and strange. One of the popular “flash mob” activities was in Manhattan, New York City: Three hundred people met in a store and each of them told the shop assistant that they would buy the same size sports shoes, and the shop assistant didn’t know what to do.
【小题1】What did a lot of fans do at People’s Square in Shanghai?
.
【小题2】What is “flash mob”?
.
【小题3】Are people of “flash mob” usually strangers?
.
【小题4】Where do people find each other in a short time?
.
【小题5】What does the writer think of “flash mob”?
.They performed Michael Jackson’s unfinished dance.
答案：
(答案→)They performed Michael Jackson’s unfinished dance.
解析：
【小题1】细节理解题，根据文中语句“a lot of fans met at People’s Square in Shanghai. They performed Michael Jackson’s unfinished dance.”理解可知。
【小题2】细节理解题，根据文中语句““Flash mob” is a group of people who meet in a public place to perform an activity for a short time.”理解可知。
【小题3】细节理解题，根据文中语句“Sometimes all these people are friends, but usually they are strangers (陌生人) and they find each other (彼此) on the Internet.”理解可知。
【小题4】细节理解题，根据文中语句“but usually they are strangers (陌生人) and they find each other (彼此) on the Internet.”理解可知。
【小题5】细节理解题，根据文中语句““Flash mob” is very surprised and strange.”理解可知。
