作条件状语，多置于句首。如：
Working hard, you will succeed sooner or later.
作让步状语，多置于句首。如：
Weighing almost one hundred kilos, the stone was moved by him alone.
作结果状语，多置于句末。如：
The song is sung all over the country, making it very popular.
作方式或伴随状语，多置于句末，也可置于句首。如：
Travelling by car, we visited many exciting and beautiful places.
作方式或伴随状语，多置于句末，也可置于句首。如：
He sat by the roadside, begging.