When Mr. David retired(退休), he bought a small house in a village near the sea. He liked it and hoped to live a quiet life in it. But to his surprise, many visitors came to see his house in summer holidays, for it was the most interesting building in the village. From morning to night, there were visitors outside the house. They kept looking into the rooms through the windows and many of them even went into the house. He decided to drive the visitors away. So he put a notice on the window. The notice said，“If you want to satisfy your curiosity(好奇心), come in and look around. Price: twenty dollars.”Mr. David was sure that the visitors would stop coming, but he was wrong. More and more visitors came and Mr. David had to spend every day showing them around his house. “I came here to retire, not to work as a guide(导游)”, he said angrily. In the end, he sold the house and moved away.

    My friend John has got a restaurant in a big city. It is near a supermarket. He gets ten robots for the restaurant. Each robot costs (价钱为) 20, 000 yuan. The restaurant is not big, but very popular. Now more and more people come here for dinner.

    The robots have different jobs in the restaurant. Two robots cook different kinds of food; one washes the dishes; one cleans the floor and the others give food to the guests (客人).

    Although robots do most of the jobs in the restaurant, John is still very busy. He must do many things to keep the robots working well. Luckily, John is good at studying robots and he knows robots very well. I think in the future, there will be a lot of robot­themed restaurants (机器人主题餐厅) around the world.

    Sally Ride was born in California in 1951. She was the first American woman to travel into space. She loved to play tennis and wanted to be a tennis player when she was young. But after three months' professional(专业的) training, she changed her mind. She went to Stanford University and started to study science. She studied stars and planets. She did researches at the university and got her PhD in astrophysics(天体物理学博士学位) after several years' hard work.

    In 1977, she took a test to become an astronaut. And then she was picked up from over 8,000 people. In order to realize her dream of going into space, she had to get different kinds of special and difficult training. She learned how to fly a plane, how to jump out of a plane as well as how to operate(操作) special machines.

    Sally and four other astronauts flew a spaceship called Challenger on Jun. 18, 1983. She became the first American woman to travel into space. Later, she taught at the University of California. Then she wrote seven books on space for children, encouraging children to study science. Unfortunately, she died in 2012.

A group of people in my city spend their free time cleaning up the countryside. They look after the places such as fields, rivers and forests. Before my last birthday, I was not to join them because I was too young, I have to be at least thirteen years old. and now I am.

    On the first Sunday of every month we spend hours making the countryside a good place for animals, Often people are the cause of the problems. They find a great place of a picnic. But they do not take their rubbish home with them, The rubbish looks ugly and it not good for wild animals.

    However, nature also sometimes makes life difficult for some animals, Last Sunday, we spent all afternoon clearing overgrown(杂草丛生的)plants from a river. Now the water is flowing freely again. The fish can swim along without anything in their way.

    Some of our work does not bring changes so quickly. New trees will take several years to grow before they are big and strong. Birds can build homes on them then, but it is nice to know that we are trying to help.

    Hello, my name is Peter. I'm 12 years old. I have a picture. In the picture are two boys and a dog. Do you know the two boys? I know them. They are Jim and Frank. Jim and Frank are brothers. They have yellow hair and big blue eyes. They are my good friends. Now they are in China with their parents. We are in the same middle school and the same class. Their mother Mrs. Green is our English teacher. She is very nice. All my classmates love her. Harry is the name of the dog. He is yellow and big. He is my friend, too. We four often play together on Sunday.

    Ron, a teacher at the skydiving school, was surprised when he saw the grey haired man drive up to the airfield. He was more surprised when the man said that his name was Walter and asked if he could take skydiving lessons. Ron asked Walter how old he was and Walter replied that he was 60. Ron explained to Walter that anyone over 50 had to be checked by a doctor before he could learn to jump from a plane.

    "I'm afraid you should have thought about that before coming here." Ron said, "I'm sorry, but I can't let you start learning without a letter from your doctor.

    Walter smiled, "Here's a letter from my doctor. He asked me to take lots of tests and he said that I was fine. "

    So Walter was able to join the skydiving school. He came to all the lessons and worked very hard, although the other students were much younger than him, mostly about 30. Soon it was time for him to make his first jump. Ron asked him if he was feeling OK. Walter replied that he had never felt better. However, he added that there was something he should have told Ron earlier. Ron asked what it was and Walter smiled. Then, just before he jumped, he told Ron that he wasn't 60. Ron asked how old Walter really was and Walter told him he was 75!

    Walter's first jump from a plane was six years ago and yesterday he made his eighteenth jump. "I should have started skydiving a long time ago!" he said.

    Walter has lots of other hobbies. He enjoys riding fast motorbikes and climbing mountains. Last year he was saved by a police helicopter in Wales.

    Walter's daughter Betty worries about him, "I think he should stop all these activities. But my mother says that as long as he's happy, it's OK."