将下列是主动语态的句子变成被动语态,是被动语态的句子变成主动语态.
1: Liu Xiang was helped by a special programme.
2: It was set up in 2001 to help young sportsmen and sportswomen
3: Liu's races were recorded,and his performance was compared with the word's best ports stars
4: He was trained for gold!
5: His skill at hurdling was noticed by his coach Sun Haiping
6: Liu was encouraged at first to train as a high jumper
7: