,返首页,*,第五单元 抱负与使命,单元,学习,任务(,三,),写演讲稿,第五单元 抱负与使命单元学习任务(三)写演讲稿,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,19,19,20,20,21,21,22,22,23,23,24,24,25,25,26,26,27,27,28,28,29,29,30,30,31,31,Thank you for watching!,Thank you for watching!,