分词作状语
怎样区别现在分词与过去分词作状语
1现在分词的一般式doing,现在分词的一般式所表示的动作与句中谓语动词同时发生。Seeing the cat, the mouse ran off.一看到猫,老鼠就跑了。
2 现在分词的完成式 having done现在分词的完成式所表示的动作先于句中谓语动词发生。The storm left, having caused a lot of damage to this area.暴风雨离开了,给这个地区造成诸多破坏。
5 现在分词的否定式在其前面加notNot having completed the programme, they have to stay there for another two weeks. 由于没有完成计划,他们不得不在那里再呆两个星期。
6现在分词作状语的基本用法1)表示时间Walking along the street, I met Mary. (=While I was walking along the street,…) 在街上散步的时候,我遇见了玛丽。
B
6.After seeing the (frighten) film, the boy was too frightened to walk home alone in the dark. 答案 frightening
6现在分词作状语的基本用法6)表示结果:现在分词表示自然而然的结果Their car was caught in a traffic jam, thus causing a delay.他们的汽车遇上了交通堵塞, 因而耽搁了。thus 副词,修饰causing。
7 现在分词作状语表示分词动作的执行者(逻辑主语)就是句子的主语,有时候这类结构可以看作状语从句的省略。When crossing the street,do be careful.过马路时,务必要小心。As long as going into the reading room, you should keep quiet.只要进入阅览室,你就应该保持安静。