Mr. Brown is an old man. Every morning he goes for a walk in the park. And he comes home at twelve thirty for his lunch in the middle of the day.

But today a car stopped at his house at twelve 0'clock. Two policemen helped him get out. One of them said to Mr. Brown's daughter, "He can't find his way home in the park and ask us to take him home in the car."

    The daughter thanked the policemen and they leave. Then she asked her father, "Dad, you go to the park every day. But today you can't find the way. What's wrong?" The old man smiled like a child and said, "I can find my way home. But I don't want to walk home."

    Imagine this. Somebody hides free books in the subway for you to find and read. Sound exciting? Well, British actress Emma Watson, 26, is doing it! She is known for acting as Hermione Granger in the Harry Potter movies.

    Watson hid 100 copies of a book called Mom & Me & Mom (2013) in London's subway. The book is an autobiography（自传）from US writer Maya Angelou. It tells about the writer's relationship with her mother. These books were put in different places in the subway. People saw Watson doing the same thing in the New York Subway this month.

    With each book, there is a handwritten note by Watson. She asked people to "take special care" of the books if they find them. She also wrote that "when you are finished, please leave it on the subway again for someone else to find".

    Watson's work is part of a movement called Books on the Underground. It calls on people to leave their books on the subway so other people can enjoy them too.

    Hollie Belton, a woman in London, started the movement in 2012. She loves reading on the subway. She noticed that a lot of people shared her habit, so she got the idea. Over the years, Belton has left over 2,000 books of her own. The movement has attracted more and more people.

    Watson is a book lover as well. That's why she tried it. Earlier this year, Watson set up her own online book club Our Shared Shelf. She reads a book every month with others. Mom & Me & Mom is the club's book for November.

    Steven is six years old. He gets some money from his mother every week. He buys a lot of things from the shops, but he doesn't really need them, and he puts them everywhere. One day his mother gives him a notebook and says, "Now, Steven, when you buy things, write their names down in the notebook, and also write down how much they are. Then you can look at it again when your money is all gone (花光了), and you don't waste (浪费) so much money next time."

    After a week, Steven says to his mother, "Do you know, Mum, before I spend (花) any money now, I really stop and think!" His mother is very happy and thinks, "Well, my son knows the value (价值) of money now. "But then she hears him say, "Mum, before I buy something, I always ask myself, 'Can I spell (拼写) that word and put it down in my notebook?'"