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1. can't help doing sth. 禁不住做某事，不由得不做某事
She couldn't hep smiling.
[比较]
(1) can't help but do 不得不……;不能不 When the streets are full of melting snow, you can't help but get your shoes wet.
(2) cannot but 不能不，只能He could not but feel disappointed.
[归纳]
(1) help (sb.) (to) do sth. Help me get him back to bed at once. / By helping them we are helping save ourselves.
(2) help...with sth. 帮助……做某事 In those days he used to help her mother with her gardening.
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