1、动词的 ing 形式作表语，定语，宾补一、动词-ing 形式作表语1. 对主语内容的解释，这时主语与表语位置可以互换。Her job is keeping the lecture hall as clean as possible. (= keeping the lecture hall as clean as possible is her job)她的工作是尽量使报告厅保持干净。2. 表示主语具有的特征、性质和状态(动词 ing 相当一个形容词）The problem is quite puzzling. 这个问题很令人困惑。二、 动词-ing 形式作定语1 单个的动词-ing 形式可以作
2、前置定语，一般具有两种含义。 说明被修饰名词的用途和性能。a reading room = a room which is used for reading 阅览室running shoes =shoes for running 跑鞋a working method =a method for working 工作方法 表示所修饰的人或物的动作或状态，可以表示正在进行的动作，也可表示经常性动作或当时的状态。developing countries = countries that are developing发展中国家an ordinary-looking house = a house th
3、at looks ordinary看起来很普通的房子a puzzling problem = a problem that puzzles somebody困扰人的问题2 作定语的动词-ing 形式如是一个短语，则应放在被修饰词的后面,做后置定语，相当于一个定语从句。They lived in a house facing south.(=which is facing south)他们住在一所朝南的房子里。Do you know the boy playing basketball?（= Who is playing basketball)你认识在打篮球的那个小男孩吗？三、动词-ing 形式
4、作宾补1、表示感觉和心理状态的感官动词， （常见的有 see, hear, feel, smell, find, notice, observe, look at, listen to 等）+ sb + doing sth（作宾补）I felt somebody standing behind me.2. 表示指使意义的动词使役动词， （常见的有 have, set, keep, get, catch, leave 等）+sb/ sth + doing sth (作宾补）We kept the fire burning all night long.我们让火整夜燃烧着。I wont have you running about in the room.我不允许你在房间里跑来跑去。
