也可表示“结果、因此”,引导结果状语从句,从句中一般没有情态动词,常用逗号与主句隔开。
They worked around the clock so that they could meet the deadlines.
The teacher raised her voice,so that the students at the back of the classroom heard him.
老师提高了声音,因此后排的学生也听到了。(结果状语)
3、...to be done ....尚待实施
Anyhow their performances were humorous enough to be copied by other groups.
不管怎样,他们的表演非常幽默以至于其他的乐队也开始模仿。