==================资料简介======================
冀教版小学英语一年级下Lesson17课文同步课件
================================================
压缩包内容：
lesson17\sound\U3_L17_01_s001.mp3
lesson17\sound\U3_L17_01_s002.mp3
lesson17\sound\U3_L17_01_s003.mp3
lesson17\sound\U3_L17_01_s004.mp3
lesson17\sound\U3_L17_01_s005.mp3
......
