Audrey Hepburn won an Academy Award as Best Actress for her first major American movie, Roman Holiday, which was showed in 1953. But she is remembered as much for her help as for her acting.

    Born in Belgium in 1929, Audrey's father was British and her mother was Dutch. Audrey was sent to live at a British school for part of her childhood. During World war Ⅱ, she lived and studied in the Netherlands. Her mother thought it would be safe from German attacks. Audrey studied dance as a teenager and during college. But when she returned to London after the war she realized she wasn't going to be a ballet dancer. So she began taking acting parts in stage shows. Later she began to get small parts in movies.

    But it was Audrey Hepburn's move to America that made her truly famous. In 1951 she played the character "Gigi" in the Broadway play Gigi and won popular praise. Two years later, Roman Holiday made her a star at the age of 24.

    Audrey made more than 25 movies. Among her most popular roles was "Hoolly Golinghtly"in Breakfast at Tiffany's in 1961. Three years later she played "Eliza Doolittle" in My Fair Lady. She was married twice. In 1989, the UN Children's Fund named Audrey a goodwill ambassador. She travelled all over the world in support of UNICEF(联合国儿童基金会) projects. The UN agency said she was a tireless worker. She often gave 15 interviews a day to raise money and get support for UNICEF projects.

    Audrey Hepburn often said her love to UNICEF was the result of her experiences as a child during World War II. Shesaid she knew what it was like to be hungry and to be saved by international help. She was a goodwill ambassador until her death in 1993 from cancer.

    Benedict's explorations are often dangerous，but he likes them. One of his favorite explorations was in 2001. He wanted to be the first person to travel alone across the ice from Siberia to Alaska. So he went to Siberia and lived with the Chukchi people. He learned how to live like the Chukchi people and drive a dog team. He traveled 622 miles with only a dog team. The weather was really bad. There was a lot of snow, wind and ice，so the journey was very difficult. Benedict almost lost the dog team，and he almost died，so he ended his journey early. It was scary, but he learned a lot.

    Sammy looked out of the classroom window at a bird in a tree. He saw a worm (小虫) in the bird's mouth. "Wow!" he whispered as he looked at the bird eating the worm.

    "Sammy!" his teacher Mr. Maxwell said loudly.

    Sammy jumped and knocked his science book off his desk. Everyone in the class laughed and Sammy blushed. This was the third time today he had been caught not paying attention to the science lesson. It was just so easy to get distracted (分心的) when people read aloud from the science textbook!

    It wasn't that Sammy didn't like science. He loved to learn about machines, Earth and animals. He even thought bugs and plants were great. He wanted to go outside and see how a snake lived. He wanted to watch plants growing from the ground as they did last month. He just didn't want to read about these things.

    Sammy thought Mr. Maxwell would surely understand. "There was a bird with a worm in its mouth..." Sammy began. Then he saw the furious look on his teacher's face. Sammy decided that he had better stop talking before Mr. Maxwell became any angrier.

    "The hound(猎犬)!" cries Holmes. "Come, Watson! Come."

    We run quickly over the moor(荒野). We hear one last cry. A man is lying on the ground. As we approach(靠近) we see the dead body of Sir Henry Baskerville. He is wearing his brown suit.

    "Oh, no!" says Holmes, "This man has a beard!"

    Indeed Selden is dead instead of Sir Henry.

    "So it is all clear to me. I remember that Sir Henry gave his old suit to Barrymore, and Barrymore probably gave it to Selden—his wife's brother."

    "Then Selden is dead because of this suit," says Holmes.

    "Think, Watson! Someone gives the hound some of Sir Henry's clothes—probably the boot from the hotel in London. The hound picks up Sir Henry's scent and runs after this poor man."

    Suddenly we see Stapleton walking towards us. He says, "There was a strange noise. I was worried about Sir Henry. I wanted to check if he was all right."

    "Really?" asks Holmes.

    Stapleton looks at Holmes. "Why, it is Mr. Sherlock Holmes, the famous detective! Can you solve the mystery of the Hound of the Baskervilles?"

    Holmes shrugs his shoulders," We cannot solve every mystery. Anyway I will return to London tomorrow."

    "Oh, will you return to London tomorrow?"

    "Yes."

    So Holmes and I walk off to Baskerville Hall and Stapleton walk to his home.

    Holmes thinks Stapleton is dangerous. But we have no proof that Stapleton is the murderer.

    "There are no marks on Sir Charles's body. We know that he died of fright, but we can't prove anything."

    "Things are becoming clear to me," Holmes says to Sir Henry. "It's a very difficult case. And you must help me to catch this hound."

    We are surprised to see one portrait(画像) of a thin man is Sir Hugo, the first victim of the Hound of the Baskervilles. And he's like both Sir Henry and Stapleton. "Stapleton is a Baskerville," replies Holmes. "So he wants to inherit(继承) the Baskerville fortune, and he…," I say. It's an important clue.

    A river was running happily in the hill, the valley(山谷) and the field. Soon it was stopped by a huge rock and the river was a little afraid and worried what it could do.

    The rock said, "Hi, baby！Where are you going？"

    The river answered, "I'm going to the sea. My mother is waiting for me."

    The rock made fun of the river and said, "You're too young. Go back to the hill at once. You can't get there. Don't come back here again!"

    The river was surprised to hear that and said, "I can only go forwards(向前).There's no river that goes backwards(向后)!"

    The rock became angry and warned the river. "Don't speak! If you don't go back, you will have to change your direction. Don't want to run over my body!"

    The river asked helplessly, "Where should I go？"

    "You can go anywhere you like. Just don't come close to me!"

    While they are talking, more and more water came here. Then it began to get out of control. The river ran quickly over the rock and the rock was washed pitifully.

    The river said proudly, "A weak person will change his goal and direction. A person who is strong will only go ahead and nothing can stop him!"