2010希望之星英语风采大赛四川赛区复赛

是即兴演讲吗?不是评委抽题?不一样啊?
一共会有4个半命题题目(宁波赛区和四川赛区的题目应该一样吧）：
1：lf l were a foreign reporter,l would like to cover China in the following ways...（半命题）
2：lf l were a volunteer of World Exposition2010, l would...(半命题）
3:Since you are a student with no income,how would you help people in the earthquake area in Sichuan?(直接写作）
4:How to promote the reduction of pollution or wasteful consumption?（直接写作）
那个,具体什么意思嘛,自己去查一下吧