Different colour influence people differently．Red is an exciting colour．It creates an image of action, energy and danger．Red is often used in flags.80% of the world's flags have red in them．A study Germany showed that football teams that wear red are more successful．Blue is a very calm colour．Businessmen usually wear dark blue suits．Blue is also a peaceful colour．The flag of the United Nations is light blue．Yellow means freedom and green is a very relaxing colour．Some doctors nowadays wear green, because it's less tiring than white．White is a clean and strong colour．This is one reason why most doctors wear white coats．We believe in them more．People wearing grey do not want others to notice them．Brown is the opposite of black．It is warm and friendly．

    The Great Wall of China is called the "Ten thousand Ii Great Wall" in Chinese. In fact， it' s more than 6，000 kilometers long. It winds its way from west to east， across deserts， over mountains， through valleys till at last it reaches the sea. It is one of the wonders of the world.

    The Great Wall has a history of over twenty centuries. The first part of it was built during the Spring and Autumn Period. During the Warring States Period， more walls were put up to defend the borders of the different kingdoms. It was during the Qin Dynasty that the kingdom of Qin united the different parts into one empire. To keep the enemy out of his empire， Emperor Qin Shihuang had all the walls joined up. Thus， the Great Wall came into being.

    The Great Wall is wide enough at the top for five horses or ten men to walk side by side. Along the wall are watchtowers， where soldiers used to keep watch. Fires were lit on the towers as a warning when the enemy came.

    It was very difficult to build such a wall in the ancient days without any modern machines. All the work was done by hand. Thousands of men died and were buried under the wall they built. The Great Wall was made not only of stone and earth， but of the flesh and blood of millions of men.

    Today the Great Wall has become a place of interest not only to the Chinese but to people from all over the world. Many of them have come to know the famous Chinese saying: "He who does not reach the Great Wall is not a true man."

回答下面5个问题， 每题答案不超过7个词。

    Once upon a time, in the forest there lived a baby elephant, who had no friends. ________________ of the animals wanted to be his friend because he was too large.

    One day, a wild fire happened in the forest. The animals ran to safer places. The dry trees caught fire and the fire was sure to go all around the forest. The baby elephant ran to the nearest river, collected much water in his trunk (象鼻) and rushed to the burning trees. He sprayed (喷) the water on the fire. Finally, he put out the fire.

    Later, while he was resting after the hard job, all the animals and birds came to him and expressed their thanks for his kind help in time. They were now ready to have him as their good friend and their hero. They said, "A friend in need is a friend indeed."

    The baby elephant was happy to get so many friends and played games with them. He walked through the forest, carrying several small animals and birds on his back.

    Last month I got the chance to take part in an underwater research project in an area of the Gulf of Mexico called the Flower Gardens. A team of professional researchers were trying to learn more about the fish and other animals that live in this part of the sea. The Flower Gardens are a long way from the shore(海岸) and we spent three days on a boat.

    The team used a piece of underwater equipment to collect information. This underwater equipment is called a Remotely Operated Vehicle (ROV). The ROV could measure water depth and temperature and it also had a camera that sent live film back to the boat. The ROV was great fun. It was controlled by a computer on the boat, and I was allowed to operate it a few times.

    However, the thing I enjoyed most was diving into the water. At first, I was quite frightened—mainly because I couldn't see land in any direction. But as soon as I jumped into the water, I wasn't afraid anymore. It was amazing to see the colourful fish swimming around and I could see all the way to the Flower Gardens, which are almost 30 metres down.

    I will never forget the Flower Gardens. The trip was like a holiday but I also learnt new things about science and research projects. The team were very friendly and everyone was happy to explain what they knew about the sea. It was a great opportunity and it has made me think about my goals in life. The experience will surely encourage me to work harder to become a scientist.