现在分词和过去分词在用法上有什么区别

　(一)分词的作用

　　·现在分词可用于：

　　·①构成进行时.e.g. We are studying English.

　　·②当副词作状语.e.g. The children came, singing and dancing.

　　·③当形容词作定语、宾补和表语.

　　·e.g. Falling leaves danced in the air.

　　·I saw many birds flying along the river.

　　·The story is very moving.

　　·过去分词可用于：

　　·①构成完成时. e.g. The play had begun when we arrived there.

　　·②构成被动语态.e.g. English is widely spoken in the world.

　　·③当副词作状语.e.g. Seen here, the city looks more beautiful.

　　·④当形容词作定语、宾补和表语.

　　·e.g. a boy named Tom

　　·I saw the girl killed with my own eyes.

　　·I’m interested in English.