听以下短文一遍，给你50秒钟的时间准备，然后模仿朗读。当听到“开始录音”的信号后，立即在50秒钟内朗读短文，当听到要求“停止录音”的信号时，应立即中止朗读。

John used to have a computer in his bedroom, but not now. Yesterday his mum took it away. She said he was playing too many computer games. She wants him to do more homework. She decided to put the machine in the sitting room. Now when John uses the computer, his mum can see him. He can’ t play games anymore.