Robots have built a big house in Switzerland using 3D-printed materials. It is the first house made 【小题1】 robots for people to live in. It is environmentally friendlier and 【小题2】 (safe) than man-made houses.

The creators say the future of building will 【小题3】 (change) by 3D-printing technology. “This is a new way of seeing architecture (建筑),” said one of the creators. “How you build is important.”

The big house was built 【小题4】 (complete) from robot-made materials. It used 60% less cement (水泥) than a man-made house. There are thirty-five 【小题5】 (part) in the house, but some wise robots built each one in sixty to ninety minutes. It 【小题6】(mean) that the robots built the full house in just 48 hours.

It is not the first time for robots 【小题7】 (build) houses. Some Chinese 【小题8】 (use) 3D printers to build ten houses in a day in 2014. And also they created a building the next year. Last year, some Italians built a house in just 48 hours.

Scientists say one day they could send robots to build houses on 【小题9】 moon. We are curious about 【小题10】 we’re building our future.

Recently, a research on how a new virtual reality (VR 虚拟现实) experience educated children about the fire disasters (灾害) was done. The new VR experience was developed by the University of South Australia, hoping to educate children 【小题1】 (learn) how to be safe in a fire. It presents a situation for children aged 10—12. In the situation, they 【小题2】 (ask) to look after a friend’s dog just before a fire event begins. They take part in a set of problem-solving 【小题3】 (activity) to help save and protect themselves and the dog.

The findings showed that over 80% of children could 【小题4】 (clear) tell the advantages and disadvantages of different choices. They also learned to make wise decisions to protect themselves 【小题5】 a fire. Children thought it especially important and meaningful, because 91% of 【小题6】 (they) didn’t have knowledge of fires at the beginning, and 67% said that they 【小题7】 (be) too young to make safety decisions in a fire.

The researchers believed such VR experiences made it possible for 【小题8】 young to learn about fire safety directly. “Well-designed VR can provide children with 【小题9】 (value) learning tools,” said Delene Weber, one of the researchers. Meanwhile, children have less knowledge about fire safety and are not as physically strong as adults, 【小题10】 they’re often most at risk. “With these VR experiences, we can make children understand the risks and realize they can help,” said Weber.

In movies, we sometimes see cars fly in the sky. But now we can see 【小题1】 (they) in real life, too. A US company 【小题2】 (make) a flying motorcycle (摩托车) called Speeder two years ago. It is the world’s 【小题3】 (one) flying motorcycle. Everyone thinks it is an amazing 【小题4】 (invent).

Speeder doesn’t have 【小题5】 (wheel) like other motorcycles. It has 【小题6】 touch screen (触摸屏). Riders can turn the motorcycle around by 【小题7】 (touch) the screen. Riders can also use the screen to talk to people on the ground.

According to (根据) the 【小题8】 (company) official website, Speeder can fly as high as 4,500 meters above ground. Speeder has four engines. It can fly 【小题9】 a speed of 240 km per hour. That’s much 【小题10】 (fast) than a car. Speeder runs on diesel fuel (柴油) and can fly for 10 to 22 minutes. In the future, the company will use clean energy to run Speeder.