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A.根据句意、首字母或汉语意思完成单词。
51. Do you know the saying “A friend in need is a friend i________?
52. —Where’s Mr Green?
—He has gone to attend an i________ meeting.
53. It’s important to_______(教育) the young students.
54. The heavy work _______(影响) his health, so he looked much older.
55. I write to my mother every week, _______(主要) on Sundays.
B.用所给词的适当形式填空。
56. Can I have a________(medicine) examination today? I don’t feel well.
57. —How is Miss King?
—She is still under________(treat) in hospital.
58. Dr. Black felt tired because he had two________(operate) yesterday.
59. The doctor didn’t know what caused the old man’s ________(blind).
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