2【牛津版】英语一年级下4~6课同步视频

 Unit4

https://v.qq.com/txp/iframe/player.html?vid=y0367zexywq&auto=0&width=500px&height=375px

 Unit5

https://v.qq.com/txp/iframe/player.html?vid=o03671j5wfz&auto=0&width=500px&height=375px

 Unit6

https://v.qq.com/txp/iframe/player.html?vid=r0367kmb7gv&auto=0&width=500px&height=375px