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.”

    When some plates(板块)of the Earth move suddenly, an earthquake happens. Many earthquakes begin under the sea. Earthquakes may happen anywhere on the Earth. They often happen near the mountains.

    During an earthquake, the shakings make rocks rise suddenly and even crack(断裂) open. Houses fall down. People are killed or hurt, and sometimes the whole villages or cities are destroyed.

    Can we do something to keep ourselves safe from earthquakes? Scientists have studied earthquakes and made maps that show the “earthquake belt（带）”. In area of these belts, it's possible for earthquakes to happen. In these areas we should build strong houses to fight against earthquakes.

    In the future, Scientists will be able to tell when and where an earthquake will attack before it happens. They can also tell people what to do and how to deal with it.

    Butterflies are common all over the world, but butterflies in hotter countries are usually bigger and more brightly colored than those in cooler countries, and they are more different kinds.

    Usually the male(雄性的)butterflies are more brightly colored than the females. The females have bigger and heavier bodies since they carry the eggs. The bright colors of the males help to attract the females, and the duller(较暗淡的)colors of the females make them less likely(可能的)to be caught by enemies before they have laid their eggs.

    Some butterflies hare bright pattern colors on the upper surface of their wings that show when flying, but when they rest on a tree or leaves, they close their wings. On the undersides of their wings there are green and brown marks which look like the tree or leaves. They are then difficult to be seen. The best example of this is the Dead Leaf Butterfly. When its wings are closed, it looks exactly like a dead leaf. There are even marks that look like the holes in a dead leaf. When the butterfly is run after by a bird, it closes its wings and seems to have disappeared completely.

    Many butterflies have round marks on their wings that look like eyes. The round marks have a useful function(功能). When the butterflies are resting, their wings are closed, and these marks can't be seen. When a bird sees one, and begins to attack it, the butterfly will open its wings. The bird thinks that it sees two eyes staring at it, frightened, and flies away.