19.In Guangzhou,there's a village school called Qixing Primary School.It has 36 rope-jumping (跳繩) world champions(冠軍). There are about 200 students on the school rope- jumping team.They usually practice in the morning and after school every day.Ten-year- old Cao Wenhan joined the team two years ago.He is a world champion of single jump(單搖).He is really good at it.He can jump 192 times (次) in half a minute.Cao and his teammates have got two champions of the country. "Before every race I was worried.This is because I lost a race two years ago.But I learned some lessons from it.So I worked really hard before the race.I felt quite happy when I got the champion," he said.Lai Xuanzhi is the teacjye.air.He started the team about 12 years ago.He always tells his students that rope-jumping may be boring,but it can teach them to keep on and never give up.