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、短信提醒注意:先行词是表示地点或时间时,有时用where或when,有时用that(which)引导定语从句,这时要根据从句的谓语动词是及物的还是不及物的。如果是及物的就用that(which),否则用where或when。例如:
This is the house where he lived last year.
This is the house that(which)he visited last year.
I thought of the happy days when I stayed in Beijing.
I have never forgotten the day which we spent together.
5.限定性定语从句和非限定性定语从句:
①限定性定语从句是句中不可缺少的组成部分,主句和从句之间不用逗号分开,引导非限定性定语从句的关系代词有who, whom, whose, which, of which等,这些关系代词都不能省略;