填空题
Girls Are as Competitive as Boys-Just more Subtle

Girls are no less competitive than boys, they simply employ more subtle tactics, a study of pre-schoolers suggests. While boys use head-on aggression to get what they want, girls rely on the pain of social exclusion.
To test the apparent differences in how very young children compete, Joyce Benenson at Emmanuel College in Boston, Massachusetts, and her colleagues divided 87 four-year-olds into same sex groups of three. In suecessive trials, each trio received either one, two or three highly prized animal puppets.
The sexes behaved similarly when there were two or three puppets to go around. The differences became clear, though, when there was just one puppet for each group.
Boys tended to ask for the puppet, grab at it, or even chase the child who had it. In contrast, girls punished the puppet-holder by excluding her from their clique, whispering behind her back or even hiding from her.
Avoiding Risks
填空题 What does "Girls are no less competitive than boys" mean?
填空题 What happened when each same-sex group had two or three puppets?
填空题 "Grab at the puppet, or even chase the child who had it." What is this kind of behaviour called in the passage?
填空题 What are the two words used to describe the competitive tactics of boys and girls respectively?
填空题 In which situation in this study did boys work better than girls?