When you watch 3D movies or TV, you have to wear a special pair of glasses. The 3D glasses make the images from the screen look like they are there in the room with you.

    Three-dimensional, or 3D, means having three dimensions（维度）: width, height and depth. 3D technology（技术） is based on the way the human brain（大脑） and eyes work. Because the pupils of a person's eyes are about 6.5era apart（分开）, when we look at something, each eye sees,it from a different angle（角度）. Our eyes send the two images to our brain, and the brain puts them together. The small difference between the image from the right eye and the image from the left eye allows us to see depth.

    When we view pictures and television in two dimensions, each eye gets the same information. That is because the image has no real depth, and there is only one of viewing it. So the goal of 3D technology is to get a different image into each of the viewer. It uses two film projectors. One projects a left eye image and the other projects a right image. The 3D glasses allow us to see a different image in each eye.

    While watching 3D films, we feel that we are in the same environment as the things we're watching. However, it also has its disadvantages. The 3D glasseswork by controlling the amount of light that reaches the eyes. It makes the screen look darker. What's more, people with eye problems may get headaches if they spend too much time watching 3D movies，because their brains need to work harder to "read" the images.

    I am from South Africa. I didn't at all know the weather here was so cold, but I am glad to say that I have all the clothes for this freezing weather.

When I First got to know that l would be attending this international conference here in Finland, I had no idea what kind of clothes I should take along. I didn't know what to do when I thought of this two-week stay here, with a very formal dinner, a few parties, social gatherings and a dance during the conference.

    Luckily, my friend Julia has been to northern Europe. Yes, she was a great help. She helped me with my biggest problem. She placed an order for some warm suits and dresses, business-type clothes, of course, of dark colors. She also bought me some skirts and blouses so that I could wear the same clothes in several different ways. A couple of lively colored dresses will give me a nice change from time to time. She also helped to choose a very warm raincoat and a pair of boots.

    Oh, how lucky I am to have such a helpful friend. She saved me a lot of trouble, nothing worries me about my meeting, nor my clothes.

    ”I am so happy!" said Gorilla. "The Great King Ape is coming for dinner!"

    Chimp was happy too, and he jumped up and down.

    "I will cook a great meal for the Great King Ape!" said Gorilla.

    "I will cook too!" said Chimp.

    But Gorilla did not want Chimp t~ cook. He was sloppy. He often made a mess (搞的一团糟). He would ruin (破坏) her great meal. So she asked chimp to buy some drinks.

    When, Chimp came home, he asked, May I cook now?

    "We still need bananas," said Gorilla. "Please pick the best bananas you can find. I want to cook sliced (切片的) bananas for dessert (甜点)."

    Soon Chimp brought back a bag of bananas and put the bag on the kitchen chair. Gorilla walked into the kitchen. She did not see the bag and sat down on the chair. "Oh, no! My bananas! They are ruined!" Gorilla started to cry.

    "Don' t cry, Gorilla," said Chimp. "I have an idea for a nice dessert."

    Chimp took out a big bowl and a spoon (勺子). He peeled (剥皮) some bananas, put them in the big bowl and mashed (捣碎) them with the spoon. Then he put some milk in. At last, Chimp put it into a small bowl.

    Soon the Great King Ape arrived. He ate up all the food. "This is the best meal I have had!" he said.

    Chimp brought out the dessert. The Great King Ape tried it. "Delicious!" he said. "You are both great!"

    "Thank you," said Gorilla. She smiled at Chimp. "Chimp is a wonderful cook," she thought.

    A young man from a village called Nawalapitiya married a young woman from Maiyuwa, a small village. They lived with the man's big family-his parents, his brothers, their wives and children.  The family kept an elephant, in which the woman soon took a great interest. Every day she fed it with fruit and sugar.

    Three months later, having quarreled with her husband, the woman went back to her parents' home. Soon the elephant refused to eat and work.  It appeared to be ill and heartbroken. One morning after several weeks the animal disappeared from the house.

    It went to the woman's home. On seeing her, the elephant waved its trunk and touched her with it. The young woman was so moved by the act of the animal. So she went back to her husband's home.

    One Sunday evening, it was quite dark when old Stanley went for his walk. He was walking along the sidewalk. Suddenly, he saw a white car coming around the corner at high speed. It was going too fast and crashed into a red car in the street where he was walking. He rushed up to the cars to see if anyone was hurt and needed help.

    The two drivers were arguing.

    "You came around the corner too fast," one man said.

    "No!" said the driver of the white car, "That's not true! Your car was parked in a wrong place."

    Stanley listened to their argument and then said the white car driver was wrong to drive too fast. The driver of red car asked Stanley to prove he was right in court(法庭). Stanley gave the driver his name and telephone number.

    Next Thursday morning, Stanley was asked to go to the court. The lawyer for the driver of the white car asked him a lot of questions about what he had seen. Then he asked Stanley how old he was.

    "I'm eighty-two," answered Stanley.

    "Do you usually wear glasses?" asked the lawyer.

    "Yes, I do," answered Stanley.

    "Were you wearing them on the night of the accident?" the lawyer asked.

    "No," replied Stanley.

    Then the lawyer said, "Why should the court believe you? You are eighty-two years old, you were not wearing your glasses, and it was dark. How far can you see in the dark?" Stanley thought about it for a minute. "Well," he said, "when it's dark, I can see the moon. How far is that?"