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I was very angry at what he said.
8. in the end 最后;终于= at last/ finally
at the end of 在...末端;到...尽头
He married the nice girl in theend/at last/finally.
The school is at the end of thestreet.
9. careless adj. 粗心的;反义词：careful， 意为“小心的”。
The boy is very careless. 这个男孩很粗心。
He is more careful than me. 他比我认真。
10. advise v.“劝告;建议”n. advice, 是不可数名词.
Give me some advice!
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