1. clothes, cloth, clothing

clothes統(tǒng)指各種衣服，謂語(yǔ)動(dòng)詞永遠(yuǎn)是復(fù)數(shù);
cloth指布，為不可數(shù)名詞;
clothing 服裝的總稱，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 eg:He was killed in the accident.

3. amount, number

amount后接不可數(shù)名詞;
number后接可數(shù)名詞 eg:a number of students

4. family, house, home

home 家，包括住處和家人;
house房子，住宅;
family家庭成員. eg:My family is a happy one.