题目内容
by the age of eight. That may not be too surprising to anyone who has kids.
Humans are born with a sense of fairness that most other animals seem not to share,
but it's not been clear exactly when this concept starts to develop.
Dr. Alva Zhao and her colleagues conducted a series of tests to measure just how
much children care about equality at different ages. In three different versions of a game,
children were asked to choose between two ways of sharing a number of sweets with
themselves and an unfamiliar partner. They could choose, for example, between one for
me and one for you, or just having one for themselves.
At the age of three, children were "almost completely selfish", says Zhao.
They refused to give sweets away even if it made no difference to themselves. But by
the age of eight, children generally preferred the fair option, sharing a prize equally rather
than keeping it all to themselves.
Several other factors influenced how fair the children were. The team found that children
without brothers or sisters were 28% more likely to share than children with brothers or
sisters. On the other hand, the youngest children in a family were 17% less willing to share
than children who had only younger brother or sister.
In addition, if children knew that their partner was from the same playgroup or school,
they were more concerned about being fair. This suggests that being nice to people you
know is something that develops a sense of equality.
B. the kids' willingness of sharing is learned from their family
C. the older the kids are,the more selfish they will become
D. kids become more generous when they reach a certain age
B. children's awareness of equality at different ages
C. the reasons why children care about equality
D. children's attitudes towards other partners
B. Children above eight years old become less selfish.
C. Children with brothers or sisters tend to be more generous.
D. The youngest child in a family tends to be less generous.
B. nice people
C. familiar people
D. fair people
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