一， 现在分词的用法

1. 作状语

现在分词表示时间，条件，原因，让步关系时，常位于句首，且用逗号隔开，可以转换相应的状语从句；现在分词作结果，方式，伴随状语时多位于句中，可用逗号隔开，也可以不用。

Walking in the street(When I was walking in the street), I met an old friend of mine.

走在大街上，我遇到一位老朋友。（时间）

Working hard(If you work hard), you will surely succeed. 如果用功，你一定会成功的。（条件）

Not knowing her address (As I don't know her address), I can't write to her.

由于不知道她的地址，我没能给她写信。（原因）

Having failed (Although he had failed) many times, he didn't lose heart.

虽然屡次失败，但他没有灰心丧气。（让步）

Please answer the question using another way (by using another way).

请换一种方式回答这个问题。（方式）

A terrible hurricane struck the area, making thousands of people homeless.

飓风袭击了那个地区，使成千上万人无家可归。（结果）

They were walking in the woods, singing happily. 我们漫步在树林里，欢乐地唱着歌。（伴随）

2. 作定语

现在分词可单独作定语放在被修饰的名词前。现在分词短语放在被修饰的名词后，相当于一个定语从句。被修饰的名词与现在分词之间是主谓关系，动名词作定语表示被修饰的名词的功能和用途。

The flying kites are high in the sky. 飞行的风筝在天空中飘扬。

3. 作宾语补足语

现在分词常用在感官动词see, hear, watch, feel, notice, observe, listen to, look at等和使役动词have, get, leave, set等的宾语后面作宾语补足语，宾语与现在分词之间是主谓关系，也就是说宾语实际上是现在分词动作的发出者。

My breathing quickened, and I felt heart beating faster. 我呼吸开始变得急促，心跳也加快了。

4. 作表语

现在分词作表语可被very等副词修饰。

The teacher's words were greatly inspiring whenever I met with difficulties.

无论我什么时候遇到困难，老师的话都极具感召力。

例1. I remembered _____ the door before I left the office, but forgot to turn off the lights.

A. locking

B. to lock

C. having locked

to have locked