Do you know fish come out of eggs when they are born? After the little fish comes out of the egg, it eats the food in the egg. When it is big, it leaves the egg. It swims in the water. You can see the eyes and nose. Its ears are hidden in the head.

    Spree fish eat other fish. Some fish have small mouths and teeth and they often eat plants.

    Autistic (患自闭症的) children may learn better from robots than from human beings, according to a study at a school in Birmingham.   Two robots like humans, Max and Ben, have been helping teach autistic children at Topcliffe Primary School since March last year. The school is the first in the UK to try the new way.Ian Lowe, the head teacher, said, “The robots have no feelings, so autistic children find that they are less terrible than their teachers.” He added, “They are really cute-looking. Autistic children are hard to communicate with adults and other children, but for some reasons they like these robots. Some children are not able to communicate with others. But they come into school and start to communicate through the robots.”

    The robots are knee-high and move like children. The school is using them to teach phonics (声学) and play cards or memory and imitation (模仿) games with children from five to ten.Dr Guldberg said, “We do many different activities with the robots acting as a model for the children's behavior. It is amazing to see how interested and concentrated the children can be when they are working with the robots. It can be very difficult to get autistic children to concentrate.” He added, “If you can meet the needs of autistic children, you can meet the needs of all children. And you know, when people feel safe and interested, they learn much better.”

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    You don't need to get in a time-travelling machine to see how technology will change our lives, such as the way we shop. Several new technologies that are to change your buying habits already appear. Let's see what's in store for your future shopping.

    Try it on, virtually（虚拟地）. Want to shop online for a new pair of glasses? You don't need to guess which pair looks best on you—use the eBay Fashion iPhone app to try a pair of glasses you're checking out on a picture of your face. But what about buying something bigger? Thanks to Microsoft Kinect's action tracking（跟踪）camera, you can cover clothes on your screen body. You can even choose the background of your virtual fitting room to improve your shopping experience.

    Get a perfect, custom fit. Everyone's body is shaped differently. To get a perfect fit, you sometimes have to get your clothes changed. But by using 3D scanning technology, all the clothes you buy will fit your body perfectly. Some companies scan（扫描）your body using High-tech to get the real sizes, so they can make special clothes just for you.

    High-tech shopping carts（推车）and checkout counters（收银台）. High-tech shopping carts could be common in malls and supermarkets in the future. Microsoft Kinect-enabled carts are under test. The cart can follow you along the aisles（通道）, controlled only by your movement and your voice.

    In the United States, several supermarkets use a certain set called “Scan It” that gives buyers the freedom to scan products on their own while they shop. If we don't want to wait in line before the checkout counters, we can use Toshiba's new object Recognition Scanner. The machine identifies（辨认）a product as soon as it's placed in front of a camera just by its shape and color, even if it has no bar code.

    This week is Computer Science Education Week. During the week, students around the world will be taking part in an "Hour of Code" and learning a little about programming computers. This year, there will be more than 200.000 events in over 180 countries.

    The U.S. Congress first created Computer Science Education Week in 2009 to remember Grace Hopper, one of the women who played an important part in the early days of computers.

    Hadi Partovi came up with the idea of the Hour of Code. He thinks coding is an important skill and that it's important for schools to teach computer science. He started the Hour of Code in 2013 because he was worried that computer science was not a big part of what schools taught in most states.

    To spread his idea, he got the help from many famous people. Some were famous for working with computers, like Bill Gates. Others were famous in other areas. Mr. Partovi got a lot of money for his idea from big companies like Facebook. Google, and Microsoft.

    Students who take part in the Hour of Code complete a short coding challenge that is broken down into small, simple steps. The challenge is supposed to take about an hour in all.

    To raise the interest of students, the challenges are often tied in with popular movies or games. For example, challenges have been built around Angry Birds. Mine Craft. Frozen. and Star Wars—One test of the program's success is whether students keep going once the time is up. It turns out that many of them do. Last year, teachers reported that 92% of their students coded for more than an hour.