1.現(xiàn)在分詞??捎米鳡钫Z,表示:
1)同時發(fā)生的另一動作(多為伴隨的動作):
Mr.Brown sat in a boat fishing.
布朗先生坐在一條船上釣魚。
Some left the hall still weeping.
有些人離開大廳時還在哭泣。
Following Tom,they started to climb.
他們跟著湯姆開始往上爬。
2)原因:
Not knowing her address(=As we don't...),we couldn't get in touch with her.
由于不知道她的地址,我們沒法和她聯(lián)系。
Many of us,being so excited,could not go to sleep.
我們很多人是那樣激動,沒法睡著。
Having already seen the film twice(=As she had already seen...),she didn't want to see it.
這電影她己看過兩遍,不想再看了。
3)時間:
Turning around(=As he turned around),he saw an ambulance driving up.
他轉(zhuǎn)過身看到一輛救護車開了過來。
Hearing the news(=When they heard...),they all jumped with joy.
聽到這消息他們都高興得跳起來了。
Having finished her work(When she had finished...),she started to read the newspaper.
她干完工作,開始看報。
2.有時現(xiàn)在分詞短語可由when或while引起:
Be careful when you are crossing the street.
過街要小心。
I got engaged to her when traveling last winter.
去年冬天旅游時我和她訂了婚。
Don't mention this while (you are)talking to him.
和他談話時別提此事。
While doing so he hurt his leg.
這樣做使他腿受了傷。
3.一般說來,現(xiàn)在分詞表示的是句子主語的動作,這從上面句子中可以看出。但在下面這類句子中,現(xiàn)在分詞表示說話人的態(tài)度,可以不表示主語的動作:
Supposing we lose what shall we do?
假定我們輸了怎么辦?
It has cost,roughly speaking,$500.
這事大致花了500美金。