Many of us enjoy watching animals in the world. But do you know they can teach us？

Geese（雁），for example，teach a very good lesson about_____. In the fall，Canada geese fly to the warm south to_____Canada's cold winter.  They lift off in no order.  Yet_____they form a V shape，with one bird leading the group.

This V shape allows geese to_____energy.  When the front bird moves its wings up and down, the resulting force of the air lifts the next one.  This continues down the line.  The bird_____has the hardest job.  When it gets_____, it moves behind, and another bird moves into the lead.  By sharing therole, the group can travel long distances.  Geese flying in a V shape can fly 70 percent farther without_____than birds flying alone.

During the long flying journey，geese communicate with one another.  They honk（鸣叫）to_____the birds up front to keep up the speed.  They also cheer each other up_____working toward a common goal.

What have we learned from the lovely geese's experience and skills？

______together！Whether it is our personal lives or our jobs，we need other people.  We need the spirit of teamwork！