title: audience的词性是复数,还是单数???为什么有单数的用法, 
desc: 是复数,还是单数???
     为什么有单数的用法,还有复数的用法??????
answer:   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.
  