必备语法：一般现在时表将来

　　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.

　　There goes the bell. = The bell is ringing.

　　3)在时间或条件句中。

　　When Bill comes (不是will come), ask him to wait for me.

　　I'll write to you as soon as I arrive there.

　　4)在动词hope, take care that, make sure that等后。

　　I hope they have a nice time next week.

　　Make sure that the windows are closed before you leave the room。