1.clothes,cloth,clothingclothes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apieceof,anarticleof2.incident,accidentincident指小事件,accident指不幸的事故Hewaskilledintheaccident.3.amount,numberamount后接不可数名词,number后接可数名词anumberofstudents4.family,house,homehome家,包括住处和家人,house房子,住宅,family家庭成员。Myfamilyisahappyone.5.sound,...