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(三)一般疑问句式：
A)Did＋主语＋useto＋动词原形……？
B)Used＋主语＋to＋动词原形……？
美式英语通常用A种形式，英式英语用B种形式。例如：
Didyouusetogoswimmingintheriverwhenyouwereyoung?
你小时候经常在河里游泳吗？
Today is Mother’s Day. I know some of my classmates are going to help their mothers with the housework, others .are going to buy some flowers for their mothers. I want to say to her that I love her very much. But as a boy, it is a bit difficult for me to show my heart. I think only girls can do that.
My mother is very kind. She takes care of me day and night.
She spends little money, but buys anything for me that I need.
This time I must show my love. I am going to give her a card and write like this, "I love you, mother!" I am going to put it under her pillow.
翻译：
今天是母亲节。我知道我的一些同学打算帮妈妈做些家务，别人。要为母亲买一些花。我想对她说，我很爱她。但作为一个孩子，这是我给我的心有点困难。我觉得只。
我妈妈是个非常善良的。她对我照顾得无微不至。
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