三、下列词语经常用来表示时间上的线索。

first，second，next，then，not，until，while，the instand，already， long before，shotly after，soon，after wards，onlywhen，then and there， as soon as，till，earlier，ago，befor，now，just now，from now on， from then on，by the time，since，later⋯⋯

例如：

1. Not until the last bullets was used，did theysurrender the fort. 2.Only when that fails shall I leave the ship，but not before

that，⋯⋯

1. Many years later，I was going to purope on one of the finest ships that ever Eloughed the waters Of the Atlantic.

2. The sun was now high in the sky.