互动封闭仿真课堂
1、智能交互 2、电子板书式视频教学 3、在线互动问答 4、封闭课堂启发式教学方式
随堂测试、知识梳理、易错点揭示、总结启迪智能错题本
听课中的错题能自动加入错题本，课后可方便复习及导出错题本升级服务
在线答疑、课后同类题练习、讲义下载、短信提醒8. cut off
「课文原句Then he cuts off the leather top of the shoe， treating it as if it were the finest meat.（P18）
「名师点拨」cut off意为“切下来；剪下来”。如：He cut off piece of cloth and wrapped the wound. cut off还可译为“切断；停掉；使电话中断”。如：They‘ve cut off the water temporarily because they are repairing one of the main pipes. It was dangerous that our food and water supply were cut off at that time. We were cut off in the middle of our telephone conversation. Because I failed to pay the telephone bill， the telephone operator cut us off.
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