A mother duck and her ducklings（幼鸭） were on their way to a lake． Suddenly， the mother duck_______ a fox not far away from them． She was_______ about her children， so she shouted to them， "Children， hurry to the ______． There's a fox!"

The ducklings hurried to the lake． The mother duck began to walk slowly to interest the_______．

When the fox saw her， he felt _______． He said to himself， "She is hurt． I can easily_______ her!" Then he ran towards her．

The mother duck began to run． She led the fox away from the lake． The ducklings already reached the lake． The fox ________ hurt them． She didn't worry any more，________she stopped running．

The fox thought she was tired． He ________ came closer to her． Just then， the mother duck flew and landed in the lake． Her ducklings_____ to her． The fox was very angry．

   Mary was an operator（接话员） of 911in Los Angeles． One Thursday morning， she was surprised to get a call from a little girl． She said， "Mom my ill， Mom my ill，" again and again， Mary soon found the address of the call． She called the police． In a minute， the policemen and doctors arrived at the house． They broke the door open． They couldn't believe their eyes． The little child was so young that she could not walk! She was sitting beside her mother and holding her mother's hand． Tears were running down her face．

The doctors gave the woman some medicine and soon she woke up． Later， she told people， "Everyone was surprised that my daughter could call 911． On Monday I tried to teach her how to call 911， but she couldn't do it．" Mary was surprised， too．" It's the first time I have seen a two-year-old child call 911．"

   We all know that we need to help the young and the old． Sometimes the small can help the great．

An ant（蚂蚁） was drinking water near a small river and she fell into the river． She tried her best to reach the bank（河岸）， but she couldn't move at all． The poor ant got too tired， but she was still doing her best． Then a big bird saw her． With a pity， the bird put a piece of leaf into the water． With it the ant reached the bank．

While the ant lay on the grass and had a rest， she saw a man coming up． The man was walking with a gun（枪） in his hand． When he saw the bird， he wanted to kill her． But the ant bit（咬） him in one of his feet and the bird flew away at once． The ant saved the bird's life．

   One of America's biggest circuses（马戏团）will soon end elephants in its shows．The circus said it would stop by 2018．All its elephants will move to an animal conservation center． They will retire there．The circus is doing this because of public protests（抗议）．One hundred years ago，it was OK for animals to perform for humans．However，not today．People are worried about animals．The circus will continue to use other animals， such as camels，dogs，horses，lions and tigers．

Animal rights groups have told the circuses not to use the elephants．They said that circus elephants have a bad life，said many elephants have painful bones and lung diseases．They want the elephants to retire now．Many places in the USA were asked not to use the elephants．This makes it hard for circuses to go around the country．The owners of the circus said it was hard to stop using their elephants．They understand the people love watching the elephant's show．