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.

    My grandfather is seventy-five years old this year. But he looks very young. He looks like a sixty-year-old man. Now he can do everything all by himself. For example, he cooks, washes clothes, does the housework and so on.

    Every morning, my grandfather goes out with a radio. He listens to the music or the news and goes to the park to play taijiquan. In the park, he talks and laughs with other old people. After coming back from the park, he begins to have breakfast and then he goes to the university (大学) for the old. He learns drawing there. In the afternoon, he plays on the computer for about one or two hours. After supper he watches TV and learns about the world. He goes to bed at about eight o'clock. He never stays up. He likes to share his ways of keeping healthy with others.

    Are you healthy? If not, what do you learn from my grandfather's secret of keeping healthy?

    There is a big supermarket near Mrs. Green's home. She usually goes there to buy food. The shop assistants are polite and helpful. The things are cheap, too. One day, Mrs. Green goes to the supermarket. She buys some noodles.

    Biscuits are also their children's favorite food. And she buys some milk.

    Her children always have milk for breakfast. Mimi likes fish and Tim likes hot dogs. She buys some fish and sausages(香肠)for them, too. Mrs. Green doesn't have any rice at home. So she buys a bag of rice, but she can't take it. It is very heavy. Her husband, Mr. Green is coming to the supermarket and carry (搬运)the rice.

There are some famous buildings in the world.Every one can recognize (认出）them with their imaginations. For example, when you see a picture of a1stadium like a bird's nest, you probably know it is the Olympic Stadium 2Beijing.

 In fact, you can recognize other buildings more 3The shaped of the building shows the things people can see inside. In Guizhou, China, people can visit the Meitan Tea Museum, built in the shaped of a big teapot. From far away, the teapot-shaped museum 4like some kind of huge work of art. But 5you get closer, the windows make it clear that this is a building.

 If you 6interested in guitars, you might want to visit the Guitar Museum in Tennessee, the USA. The building is shaped like a guitar. Inside, visitors can see all kinds of guitars and learn about famous guitar players.

 One of the 7funny-shaped museums is a pottery(陶器) museum on the ROK. This museum built in 2011, is shaped just like 8traditional pot of the ROK. Along with seeing examples of pots and tools used for making pots in the museum, visitors can try to make 9own pots there.

10 interesting！Don't you think so?

Long long ago, there was a boy called Cao Chong. He was the {#blank#}1{#/blank#} son of Cao Cao. He was very smart.

Once, one of Cao Cao's friends {#blank#}2{#/blank#} him a big elephant. Cao Cao was very happy and thanked him. He looked at the big animal and {#blank#}3{#/blank#} to his friends," What a big and heavy elephant! Can you tell {#blank#}4{#/blank#} how to weigh it?" They thought {#blank#}5{#/blank#}, but nobody could think of a good way. Just for that moment, Cao Chong was playing games with brothers. As soon as they heard this, they stopped playing. They all tried their best to come up with a way. After a while, Cao Chong thought up a great idea. He asked a man to take the elephant into a {#blank#}6{#/blank#}, and then marked(标上……作为记号) a line where the water went up. After that the man took the elephant out of the boat. Cao Chong asked other persons to put some {#blank#}7{#/blank#} into the boat instead of the elephant. {#blank#}8{#/blank#} the water went up to the marked line, he told them to weigh all the stones. In this way, he could know {#blank#}9{#/blank#} heavy the elephant was. All of Cao Cao's friends spoke highly of Cao Chong. They thought he would be somebody(大人物) when he {#blank#}10{#/blank#} up.

What an interesting story!

Amy is not happy. She cannot find her favorite pen!

She looks all over the house. She looks under the bed. She looks in her desk. She looks in the kitchen（厨房） and in her school bag. But she cannot find it. 

Amy is really ____. She cries to her mother，Mom，my pen is lost!" Mom says（下楼），she laughs. "Why are you laughing，Mom? " Mom says（检查） behind your ear. " And when Amy checks her ear，she finds her pen. She put it there earlier.