— _________________. I didn't listen to the weather report.

    July 20, 1969 was an important day. Two Americans landed1the moon. They were the first men on the moon. Their2were Armstrong and Aldrin. They went in a spaceship. Its name was Apollo 11. Apollo 11 left Cape Dennedy (肯尼迪角，美国宇航中心)3July 16 and went on a 385, 000-kilometre journey. The trip4three days. On July 20 the spaceship landed on the moon. Armstrong5on the moon first, then Aldrin stepped on it too. The two men walked on the surface of the moon. They picked up some rocks and put them in the spaceship. They jumped up and6. Then they put an， American flag on the7. They were tired after their moon trip, so they took a8. On July 21 Apollo 119the moon and returned to the Earth. Three days later it came down in the Pacific Ocean (太平洋). A ship10them back to America and then to their families.

    At the moment, it may be difficult to imagine, but many people believe that, by the year 2100, we will live on the planet Mars. Our own planet, the Earth, is becoming more and more crowded and polluted. Luckily, we can start again and build a better world on Mars.

    First of all, transport should be much better. At present, our spaceships are too slow to carry large numbers of people to Mars- it takes months. However, by 2100, spaceships can travel at half the speed of light. It might take us two or three days to get to Mars!

    Secondly, humans need food, water and air to live. Scientists should be able to develop plants that can be grown on Mars. These plants will produce the food and air that we need. However, can these plants produce water for us? There is no answer now.

    There is a problem for us to live on Mars. Mars pulls us much less than the Earth does. This will be dangerous because we could easily jump too high and fly slowly away into space. To prevent this, humans on Mars have to wear special shoes to make themselves heavier.

    Life on Mars will be better than that on the Earth in many ways. People will have more space. Living in a large building with 10 bedrooms is highly possible. Many people believe that robots will do most of our work, so we have more time for our hobbies.

    There will probably be no school on Mars. Every student will have a computer at home which is connected to the Internet. They can study, do their homework and take exams in online schools. Each student will also have their own online teacher called "e-teacher".

    However, in some ways, life on Mars may not be better than that on the Earth today. Food will not be the same-- meals will probably .be in the form of pills and will not be as delicious as they are today. Also, space travel will make many people feel ill. The spaceship will travel fast, so the journey to Mars will probably be very uncomfortable.

    In 1969, three men made history with a trip and the world will never forget them. The three men were Neil Armstrong, Buzz Aldrin and Michael Collins. They went to the moon. The mission was called the Apollo programme.

    Many people worked to send those men to the moon. It took many years to prepare for the mission. The first Apollo mission, Apollo 1, was not successful. During the later missions, the astronauts practised flying their space- ships. On the Apollo 8 mission, the astronauts flew around the moon. They were nearly ready for the first moon landing.

    The Apollo 11 mission used a special spaceship. Its name was "Eagle". The Eagle landed on the moon on July 20, 1969.

    Only two astronauts walked on the moon that day. Neil Armstrong was the first person to step onto the moon. Buzz Aldrin followed him. The world watched the landing on TV. Michael Collins stayed in the spaceship. It was his job to look after the spaceship that would take them home. He had to make sure nothing would happen to it.

    The astronauts did many experiments while they were on the moon. They also took, some pictures of the moon. The astronauts left an American flag on the moon. Now the flag is still there. Someday moon travel may be common, and people will visit the place of the first moon landing.

They had to walk a long way they could fetch some firewood.

She had not planned her time well she did not finish her homework on time.