1. clothes, cloth, clothing clothes统指各种衣服,谓语动词永远是复数, cloth指布,为不可数名词 clothing 服装的总称,指一件衣服用a piece of, an article of 2. incident, accident incident指小事件, accident指不幸的事故 He was killed in the accident. 3. amount, number amount后接不可数名词, number后接可数名词 a number of students 4. family, house, home home 家,包括住处和家人, house房子,住宅, family家庭成员. My family is a happy one. 5. sound, voice, noise sound自然界各种各样的声音, voice人的嗓音, noise噪音I hate the loud noise outside. 6. photo, picture, drawing photo用照相机拍摄的照片, picture可指相片,图片,电影片, drawing画的画 Let's go and see a good picture.