(4)现在分词和过去分词作定语的区别：
①过去分词与所修饰的名词之间存在动宾关系，表示一个已完成的动作。现在分词与所修饰的名词之间存在主谓关系，它表示一个正在进行的动作；
e.g. This is a letter written in black ink.
There are so many people showing interest in surfing the Internet.
The witnesses questioned by the police just now gave very different descriptions of the fight.
Today there are more airplanes carrying more people than ever before in the skies.
②过去分词作定语表示被修饰的人或相关的人的自身感受，现在分词作定语表示被修饰的人或物对别人造成的感受。
e.g. Have you noticed the surprised expression on his face?
What came to us was surprising news.
While there are amazing stories of instant transformation, for most of us the changes are gradual and require a lot of effort and work, like cleaning up a polluted river.
5.专题练习
(1) He is the man__________(see) by me yesterday.
(2) That is one of the most interesting books______(sell) in the bookshop.
(3) The writer and his novel______(talk) are really well known.
(4) So many thousands of_______(terrify) people died.
(5) He is a _______(retire)worker.
(6) This is a newly________(develop) device.
(7) He found that it came from the river________(pollute)by the dirty water from London.
(8) Some of them, born and______(bring) up in rural villages, had never seen a train.
(9) Recently ________(arrive)soldiers are helping to take the victims to safe areas from the flood.
(10) This is the statue of a brave soldier ________(seat) on a horse, with a gun on his back.
(11) He is enthusiastically talking with a man__________ (call) Mike.
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