Unit 20 humor Grammar (the -ing form) -ing 作定语(1) a swimming fish a fish that is swimminga crying boya boy who is cryingfalling leavesleaves that are fallinglaughing audiencethe audience who are laughing-ing 形式表示正在进行的,主动的动作. a swimming fish a crying boyfalling leaveslaughing audience -ing 作定语(2) 一个游泳池笑料一个阅览室手术台建筑材料一个有趣的故事一个激动人心的夜晚A swimming poolLaughing matterA reading roomBuilding materialsAn interesting storyAn exciting eveningAn operating table-ing 形式表示所修饰名词的用途或性质the man walking along the riverthe old lady talking to the children a purse lying on the ground-ing-ing 短语短语形式作定语时需形式作定语时需后置后置-ing 形式表示正在进行的,主动的动作.-ing 形式表示所修饰名词的用途或性质-ing 短语形式作定语时需后置summary-ing 作宾语补足语1
Just then, I heard someone singing in the next room
I saw him wandering in the street
He kept the water boiling