新概念英语第二册第75课摘要写作

A plane crashed in the mountains,but the only passengers,a young woman and her two baby daughters,were not hurt.It was midwinter and extremely cold,so the woman put the children in a case,covered them with clothes and kept close to them all night.When she heard planes early next morning,she stamped out SOS in the snow.This was seen by a pilot,who sent a radio message,and they were soon rescued by a helicopter.
When a plane crashed in the mountains,the only passengers,a young woman and her two baby daughters,were not hurt.However,it was midwinter and extremely cold.After putting the children in a case and covering them with clothes,the woman kept close to them all night.On hearing planes early next morning,the woman stamped out SOS in the snow,which was seen by a pilot.A message was sent and they were soon rescued by a helicopter.