互動封閉仿真課堂
1、智能交互 2、電子板書式視頻教學(xué) 3、在線互動問答 4、封閉課堂啟發(fā)式教學(xué)方式
隨堂測試、知識梳理、易錯點揭示、總結(jié)啟迪智能錯題本
聽課中的錯題能自動加入錯題本,課后可方便復(fù)習(xí)及導(dǎo)出錯題本升級服務(wù)
在線答疑、課后同類題練習(xí)、講義下載、短信提醒3.由that引導(dǎo)的定語從句:that在定語從句中可以指人或物,在從句中作主語、謂語動詞或介詞的賓語。(但不能放在介詞后面作介詞賓語)例如:
The letter that I received was from my father.
注意在下面幾種情況下必須用that而不用which引導(dǎo)定語從句:
?、哂米麝P(guān)系代詞,修飾表示時間的名詞如day, time, moment等,代替when。例如:It happened on the day that/when I was born.
?、嗳缬袃蓚€定語從句,其中一個關(guān)系詞已用,則另一個用that。例如:Edison built up a factory which produced things that had never been seen before.
4.由when, where, why引導(dǎo)的定語從句。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.