a.Give the definition of "Group" in your own words.

  Group is the collection of the individuals. Different individuals obey some rules to work for the same purpose,they share ideas with each other,so we have a group.

b.Discribe the detailed characterictics of the groups.

  interdependence,common goal,group personality,commitment,cohesiveness,group conflict,social facilitation,gender differences,group size,norms. 

C.How to make the group members get into a positive participation during the group communication?

  1.clarify the group purpose.

  2.set up the fixed time to communicate.

  3.Appropriate reward and punishment mechanisms.