A boy was sitting on the steps of a door one day. He had a stick in one hand,1in the other hand a large piece of bread and butter, which somebody had kindly given him. While he was eating it and singing a song happily, he saw a poor little dog quietly2not far from him. He called out to it, “Come here, poor dog!”

    Hearing this, the dog woke up, rose with its ears3and wagged its tail. Seeing the boy eating, it came near him. The boy held out to it a piece of his bread and butter. As the dog stretched out its head to take the4, the boy quickly drew back his hand and hit it5on the nose. The poor dog ran away,6loudly, while the cruel boy sat, laughing at the trick he had done.

    A gentleman, who was looking from a window on the other side of street, saw what the7boy had done. Opening the street door, he called him to8over, at the same time9up one dollar between the finger and thumb.

    “Would you like this?” said the gentleman.

    “Yes, if you10, sir,” said the boy, smiling, and he quickly ran over to seize the11.

    Just as the boy stretched out his hand, the gentleman hit12on the knee with an umbrella. “Why did you do that?” shouted the boy angrily. He made a very13face and cried, “I didn't hurt you, nor ask you for money.”

    “14did you hurt that poor dog just now?” said the gentleman. “It didn't hurt you, nor ask you for bread and butter. As you served it I have served you. Now, remember it can feel as well as you, and learn to behave15towards animals in future.”

    It was a sunny morning. A poor(贫穷的) young man with 1 right hand came to Mrs. Brown's door. He asked her for some 2.

Mrs. Brown 3, "You see, young man. There are some bricks(砖头) behind my house. If you help me 4 them to the front, I'll pay you twenty dollars."

    "Can't you see that I lost my right hand? 5 can I do it?" The old lady smiled, put one of her hands behind her body 6 then picked up one brick with 7. Seeing this, the young man didn't say a word and started to work right away.

    After he did the work, the young man 8 with the money from Mrs. Brown and he looked a little different.

    Two years later, the young man came again with some gifts. "Thank you for 9 that day. I know you didn't need me to do the work. You just wanted to make me feel better. I learnt that I could make money by working hard, too. And now I have a pancake store and a beautiful wife."

    Think 10 and you will make your life better.

    Henry is a little fatter than he wants to be. He wants to 1. So he is on a diet (节食). He tries 2too much and he eats very little sugar because it will make him 3. He also does exercise every 4. He swims very often, 5he runs about two kilometres a day. Now he is6than before. Henry's sister, Susan, is healthier than Henry. 7 is also younger and thinner than he is. She does 8 every day, too. She doesn't 9 much meat. But she eats a lot of fruit and 10 because she thinks they are better for her health.

①As missing children get older，they become quite different from the faces in their last﹣known photographs，which makes finding the really difficult. Now AI（人工智能）can make it easier to match any found children to those old photos. 

②Police can use software（软件）to age photos of missing people，but it seems to work best in adults

③Unlike adults ，the faces of children change greatly as time goes by，and matching photos of found children to old images（画像）（数据库）of missing children is difficult. "Even with a recent face image of a child，it is quite hard for a human to recognize（辨认），who the child is from a large data set of child face images，" says Debayan Deb at Michigan State University. 

④Now Deb and his teammates have created an algorithm（算法）to work out the problem. They created a face﹣recognition algorithm on data sets，which have images of nearly 1

⑤AI learned to match recent photographs of children with images taken 2. 5 years earlier. The correct matching rate can be 80 percent. With one year between the two photographs，it was 90 percent correct at recognizing faces. This dropped to 73 percent after three years. The new AI might help to improve accuracy （准确性）of this kind of software

⑥Deb's next goal（目标 ）is to make the age gap wider. His team also hopes to develop an app to fight against the sale of children. 

In the Spring and Autumn period of China, there was a great man called Yan Zi. Yan Zi was a short man, but he was very 1 . He was an ambassador (大使) of the Qi Kingdom. Ambassadors went to other countries and 2 to their kings. One day the King of Qi let Yan Zi 3 to meet King Ling of Chu. 

King Ling didn't like the King of Qi. He told his people 4 a small gate (门). When Yan Zi 5 , the gate keeper let him get into the 6 through the gate. Yan Zi 7 "This gate is for dogs. Is this city for dogs 8 for people?" Hearing this, King Ling had to open the city gate for him. 

When he 9 Yan Zi, King Ling said, "Are there few people in your country? Why did your king make you his ambassador to Chu?" Yan Zi answered, "There 10 tens of thousands of people in my country, my lord. Good ambassadors go to good kingdoms. Poor (差) ambassadors go to poor kingdoms." How smart Yan Zi was!

On a hot day，Dog finds a tent on the beach."Cool! "he says."Now I can stay away from （躲避） the hot sun."And he walks inside. 

"Hey，Mouse!Come and see the tent I find，"says Dog. 

"Thank you!It is a great place to stay away from the hot sun，"says Mouse，and he walks into the tent. 

"Hey，Cat!"call Dog and Mouse."Come and see our tent.It is a nice place.""Thanks，"says Cat when he walks inside. 

"Hey，Chicken!"they call."Come into our tent and cool off! ""Thank you，"says Chicken.and he walks inside. 

"Hello，Elephant!"say Dog，Mouse，Cat and Chicken."We would like to ask you to come into our tent，but there is no more room.We are very sorry." 

"I am sorry for you，"says Elephant."You see，this is not a tent.It is my hat.""Oh，"says Dog."We will look for a tent somewhere else.""That's OK，friends， "says Elephant."We can share （分享）it! "