Did you know that chocolate comes from a tree? The cacao（可可）tree gets large brown fruits called cocoa pods（荚）, and inside the pods are cocoa beans. To make chocolate, first we leave the beans in the dark for a few days, and then dry them in the sun.     1     That liquid（液体）is pressed until it separates and the result is cocoa butter（可可脂）, which can be turned into chocolate.     2    

The first people to grow cacao trees for chocolate were the Mayans（玛雅人）, who lived in Mexico thousands of years ago.     3     When people from Spain came to Mexico, they discovered the drink, they took chocolate home with them, and soon the love for chocolate spread all over Europe!

Wouldn’t you like to have a cacao tree in your garden so you could have your own special supply（供应）of chocolate? Well, don’t even think about it!     4     What a pity!

Chocolate is good for you as long as you don’t eat it all day long! It has iron（铁）, which is good for your body！    5     So don’t eat too much, and remember to brush your teeth after you eat it!

【推荐2】Qomolangma is the third mountain of the Himalkayas, so people call it the Third God Mountain in Tibetan language.

Qomolangma is very famous and it is higher than any other mountain in the world. Its newest height is 8,848.86 meters. At the height of 8,000 meters, there is only 30% O₂ and the human body can only stand this height for a few days, so it is dangerous for humans to climb higher. But many climbers want to challenge themselves. As Alan Arnette, a mountain climber from America, said “Climbing mountains drives you to look deep inside yourself, and lets you find out whether you are strong enough in mind when you want to stop.”

It’s a good thing that Qomolangma gives people a chance（机会）to become strong-willed（意志坚强的）when they are trying to achieve their dreams. However, Qomolangma is in danger these years because many people leave their waste behind, such as water bottles and plastic（塑料的）bags. They cause the environmental pollution for Qomolangma. Many animals would die after eating the plastic bags. Luckily, many volunteers from all over the world came to Qornolangma to join in the clean-up activity. A volunteer advised, “Mountain climbing lovers should always take good care of themselves, and at the same time, take good care of Qomolangma.”

【推荐1】It’s 2050. There are three robots in my home: Tina, Henry and Jim. Tina is my mum’s good helper. She is 40 cm tall. Two cameras (摄像头) are her eyes and two wheels (轮子) are her feet. She does cleaning at home. Our house is tidy because of her.

Henry is a smart robot. He can help us get information (信息). Dad loves him. Every morning, Dad asks him, “What’s the weather like today, Henry?” Henry will connect to the Internet and find the weather report soon. This morning, Henry told Dad, “It will rain today, Mr. Green. Please bring an umbrella with you.”

What does Jim do in my home? He plays with me. Jim is good at playing chess. He always wins. He can also dance and play table tennis with me. Thank you, Jim.

With your help, I’m smart and strong.

【推荐3】Today almost everyone knows computers and the Internet. If I ask you “What is the most important in your life?”, maybe you will say “Computers and the Internet.”

The first computer was made in 1946. It was very big but it worked slowly. Today computers are getting smaller and smaller. But they work faster and faster. What can computers do? A writer has said. “People can’t live without computers today.”

The Internet came a little later than computers. It is about twenty-five years later than computers. But now it can be found almost everywhere. We can use it to read books, write letters, do shopping, play games or make friends.

Many students like the Internet very much. They often go into the Internet as soon as they are free. They make friends on the Internet and maybe they have never seen these friends. They don’t know their real names, ages, and even sex. They are so interested in making the “unreal friends” that they can’t put their hearts into study. Many of them can’t catch up with others on many subjects because of that.

We can use computers and the Internet to learn more about the world. But at the same time, we should remember that not all the things can be done by computers and the Internet.

【推荐2】Bamboo is a wonderful plant for many people around the world.     1     People make tables, clothes, medicine, and musical instruments with it. Pandas may eat bamboo every day, but people can also eat it.

    2     Some bamboo grows so quickly that people say they can watch it grow. The speed of growth depends on the type of bamboo, the earth and the season. Normal bamboo grows 3cm, 10cm a day. It usually grows in tropical (热带的) areas.     3     Bamboo plants are found in Asia, Australia, parts of Africa, and South America.

One of the world’s oldest building materials is bamboo. Like today, people use it because it’s very strong. They use it to build houses, boats, and bridges. The Chinese made a bamboo bridge over the Min River in Sichuan, China almost 1,000 years ago.     4     Also, bamboo is still used to build houses today, especially in China and Philippines.

As a part of history, bamboo is very important. The great scientist Thomas Edison did not invent the light bulb (灯泡), but he made it perfect. He wanted the material inside to burn for a long period of time. He tried over 1,000 different types of materials.     5     One day, he tried to use a piece of bamboo and the light bulb lit up for over a thousand hours. This invention helped other scientists to make the modern light bulb we use today.