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3.由that引导的定语从句:that在定语从句中可以指人或物,在从句中作主语、谓语动词或介词的宾语。(但不能放在介词后面作介词宾语)例如:
The letter that I received was from my father.
注意在下面几种情况下必须用that而不用which引导定语从句:
⑦用作关系代词,修饰表示时间的名词如day, time, moment等,代替when。例如:It happened on the day that/when I was born.
⑧如有两个定语从句,其中一个关系词已用,则另一个用that。例如:Edison built up a factory which produced things that had never been seen before.
4.由when, where, why引导的定语从句。例如:
I know the reason why he came late.
This is the place where we lived for 5 years.
I will never forget the day when I met Mr Liu.