分类：教育/科学-外语学习
问题：audience的词性是复数,还是单数???为什么有单数的用法, 
是复数,还是单数???
   为什么有单数的用法,还有复数的用法??????
回答：  集体名词：表示几个个体组成的集合体，或是说一个团体性的名词来表示由多个个体组合成的名词。如：lass，people,crowd,youth, family,nation,team,staff[全体职员],public,government,group,Audience,集体名词表示一个整体概念，它可以用谓语单数形式也可以用动词复数形式，谓语用单数形式表示抽象的一个整体，也就是一个由个体合成的整体。而用谓语复数形式，则强调多个单一的内容：[1]My class is a big one. [比较；There are 2 classes above  us.]My class are going to have a journey next week.[2]The Chinese people are a hard working people.There is one people found in the room.[3]His family is not poor any more.Your family are quite well, I hope.[比较：There are 2 families living by that river now.][4]The crowd is found to march on the street.The crowd are shouting over there.[比较：2  crowds of people are working on the river bank.][5]The football team was playing very well.The football team are coming tonight.[比较： 2  teams are having a match now.][6]It was late,but the audience was increasing.The audience are discussing the proposal.[7]The public was likely to support the idea.The public were attracted by the event.在很多情况下，一个集体名词单复数动词均可用，没有区别：The Government is[are] considering further tax cuts.The data are [is]all ready for examination.The audience was[were] very excited by the show.The public has [have]a right to know what`in the report.The family was[were] too poor to offer that.Our discussion group is[are]excellent.The youth of today is[are]better off than we used to be.There are many people in the room. [but:There are more than fifty peoples in our country.]只用复数动词形式的：The police are coming now.The crew are getting on  the plane.