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whose引导的定语从句的巩固，让学生快速译句子：
This is the boy whose father/mother/brother/sister is a worker.
This is the girl whose leg/arm/hand/foot/head was hurt.
This is the house whose window is broken.
Step 6 Practise
Language study of part 3
1. Get the students to join the sentences by using “whose”.
2. Ask the students to tell the differences between the following sentences:
(1) I know the person whose company produces new machines,
(2) I know the person, whose company produces new machines.
(3) I know the person, and his company produces new machines.
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