John Dattilo，from Pennsylvania State University，worked with an international team of scientists.They worked on w（1）

ays

ays

to reduce loneliness and get more good feelings.According to their new study，reduced loneliness is closely connected with doing pleasant activities when people concentrate （聚精會神） and use skills.
   "When people concentrate on what they are doing，they e（2）

nter

nter

a state （狀態(tài)） called 'flow'，" Dattilo explained. "Flow can be achieved by doing activities that we think valuable.Such activities r（3）

equire

equire

us to concentrate fully to use our skills."
   To achieve flow，there must be a b（4）

alance

alance

between the challenge of the task and your skill level （水平）.For example，if you try to create a d（5）

ifficult

ifficult

computer program but your skill level is low，then it is more possible for you to feel nervous instead of achieving flow.On the other hand，if the task is too easy，you'll lose interest and feel b（6）

ored

ored

.Flow will not appear，either.
   If you have skills of a（7）

rt

rt

，for example，playing the piano or painting，they can lead to flow.Some other things，like skiing，writing and storytelling can also lead to flow.It d（8）

epends

epends

on who you are. "When we get into a state of flow，our attention is fully caught，and we experience a moment of pleasure，" Dattilo said. "We are often surprised that time has passed so f（9）

ast

ast

when we leave a state of flow."
   However，watching TV usually doesn't help people enter flow s（10）

ince

ince

there aren't any challenges. "People develop better with healthy activities and challenges，" said Dattilo. "We hope this research will help people live further，happier，and healthier."