a.Give the definition of "Group" in your own words.
b.Discribe the detailed characterictics of the groups.
（1）Interdependence The mutual dependence of group members on one another.
（2）Common Goal The driving force that brings people together to form is a common goal.
（3）Group Personality When people come together in a group, they form a collective identity that becomes the group personality.
（4）Commitment Commitment is the desire of group members to work together to complete their task to the satisfaction of the entire group.
（5）Cohesiveness Cohesiveness, an extension of commitment, is the attraction that group members feel for each other and their willingness to stick together.
（6）Group Conflict The truth of the matter is that whenever people come together in any communicative context there is bound to be conflict of some sort.
（7）Social Facilitation The tendency for a person to release energy that would not be released if the individual were acting alone is called social facilitation.
（8）Gender Differences When groups are in competition with one another, it appears that women are more cooperative with their opponents than are men.
（9）Group Size A group is composed of a number of people who are brought together or who come together voluntarily and who share a common goal, task, or purpose.
（10）Norms Norms are the expected and shared ways in which group members behave.
C.How to make the group members get into a positive participation during the group communication?
1.Carry out effective incentive measures to arouse the enthusiasm of every student.
2.Let each member have the opportunity to express themselves and get a successful experience.
3.Every member keep quiet and listen carefully ,when others express different opinions.