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7. for the first time 第一次
(1) for the first time 第一次,后面不加从句,在句中作状语 They came to Beijing for the first time.
(2) the first time 名词短语,在从句中充当连词,后接时间状语从句,不接that,when等连词。有同样用法的短语还有:every time; next time; the last time
They liked Beijing the first time they went there.
(3) It's / This is the first time that 从句(用现在完成时)这是……的第一次 It's the first time that I have ever been abroad at all.
8. What is it that...? 是什么……?