The giraffe is the tallest modern land animal. It can be over 5. 5 meters tall. Its neck alone may be 1. 9 meters long. Yet the giraffe has only seven bones in its neck, the same number as in the humans'. Even a small bird has many more bones in its neck than a tall giraffe. Each bone in a giraffe's neck is very long, while the bones in a human's neck are short. That makes the difference. A female giraffe gives birth to one baby at a time. The baby, called a calf, is about 1. 9 meters tall at birth. By the age of eight it is full-grown. The giraffe eats mostly leaves. Because it has a long neck, it can reach the high leaves on the trees.

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    When a computer works on a group of programs, it can get very hot. Cooling the computer can cost a lot. So some scientists wonder what would happen if the heat from the computer could be used.

    Large Internet companies (公司）such as Google and Microsoft have thousands of computers. As these computers deal with information, they produce lots of heat, so they need huge cooling systems(系统）. These systems send the heat into the air.

    A company in Holland(荷兰） thinks paying to make the computers work and then paying again to cool them are a waste of energy. So the company developed a special device—the e-Radiator.

    Boaz Leupe, head of the company, says the e-Radiator works as a heating system and saves money. He explains that the energy is used twice—once to heat the home and once to cool the computer and that the users don't have to pay to cool their computers.

    Five homeowners in Holland are testing the heating system in their homes.

    "We pay for the computer using, so, in that way, homeowners get heating for free," Boaz says.

    Jan Visser is one of the homeowners. "If you use the computer more, the e-Radiator produces more heat," he says. "It can't provide enough heat if you don't use your computer often." But he is ready to try it. It's a great help for his family.

    The company says e-Radiators produce heat temperatures of up to 55℃. It says the system could save its users about $440 a year.

    Sending packets, shopping for everyday goods and even building a house, these are new skills that new robots show at the World Robot Exhibition.

    What will the world of the future be like? There are plenty of people who are happy to give their opinion of what we will be doing in 2050. Here are two predictions about the world of tomorrow.

    When we dream about the future, many like to think of owning a personal flying car. The advantages are obvious. This technology would allow total freedom of movement. We could fly at 480 km per hour, avoiding traffic lights and busy roads. However, some people believe there will be problems with traffic control. If the cars become popular, there is likely to be air traffic jam. Another big problem is mechanical failure. What will happen if the cars stop working? These are problems we must expect if flying cars become a reality.

    Three-dimensional printing is another new technology with exciting possibilities. 3D printers are used to build an object with liquid plastic.

    They build the object layer by layer until it is complete. Car companies already use 3D printers to make life-size models of car parts, and medical companies use the technology to make man-made body parts. As we move into the future, 3D printing will revolutionize the way we shop, the way we manufacture and the way we treat sick people. The disadvantage is that such equipment will be extremely expensive.

    So in the future, we might be able to fly to work or print out new shoes. Although there are some problems to solve before this will be possible, we can certainly dream of a world where technology makes life easier and safer for millions of people.

    Goal(射门)! Football, or soccer, is one of the world's most popular sports. The game first came from old China, though the modern football game began on the streets of old England. The rule is simple: get the ball in the other team's goal, not using your hands or arms. With simple rules and easy equipment(设备), people can play football anywhere. But the game needs teamwork.

    The men's game came into the Olympics at the 1900 Paris Games in France. The women's game came into the Olympics at the 1996 Atlanta Games in Georgia. At the Olympics, players play for two 45-minute halves, with 11 players on each team.

    At the Olympics, we make 16 men's and 12 women's teams into groups of four teams. Each team plays against every other team in their group. The best eight teams in the men's and women's competitions move onto the quarterfinals. In the end the best one will become the winner of the game.

Edward's Travel Tips

What kind of place do you usually choose to stay for the night during a trip? Expensive hotels that may make you feel like you don't get what you pay for? Or cheap hotels that put you  {#blank#}1{#/blank#}five strangers in the same bedroom? If both  {#blank#}2{#/blank#}(choice) sound terrible to you, here's something new: holiday apartments.

In a holiday apartment, you have more space than what  {#blank#}3{#/blank#}hotel room can give you. Everything in the apartment   {#blank#}4{#/blank#}(be) free to use. The living room, the kitchen, the study, and of course the bedrooms are all for 

{#blank#}5{#/blank#} (you) own use. Some apartments even have a  {#blank#}6{#/blank#}(true) lovely garden or a game room. You'll feel at home in the holiday apartment. One of  {#blank#}7{#/blank#}(good) things is, a holiday apartment is not expensive. The price  {#blank#}8{#/blank#}a holiday apartment for two people is often lower than that of a hotel room for two. You only need  {#blank#}9{#/blank#}(pay) a little more for a third or fourth person.  {#blank#}10{#/blank#}you travel with friends or your family, a holiday apartment will be a good choice!