一、“主将从现”原则,当主句为将来时态或表示将来意义时,时间和条件的状语从句必须用一般现在时表将来: Ill write to her when I have time. 我有空会给她写信。Turn off the lights before you leave. 走前关灯。 If we hurry, we may catch the bus. 如果赶紧走我们可能赶得上公共汽车。 Tell me in case you get into di
1)下列动词:come, go, arrive, leave, start, begin, return的一般现在时表将来。这主要用来表示在时间上已确定或安排好的事情。 The train leaves at six tomorrow morning. When does the bus star? It stars in ten minutes. 2)倒装句,表示动作正在进行,如: Here comes the bus. = The bus is coming.