If you go to London, you can see a lot of buses and cars on the road. You can also see many bikes because more people go out by bike. Why? There are many reasons (原因). First, it is very cheap to buy a bike. And then I often need to wait for(等待) a bus for half an hour. Finally, when the bus comes, there are so many other buses and cars on the roads, so the bus moves very slowly.

I go to work by bus for about four years. I often arrive at work late and feel tired. One day, a friend of mine says, “I go to work by bike. Why don’t we go to work together?” “My bike is old, I leave it at my home for a long time. And there are so many buses and cars on the roads,” I answer. “Don’t be afraid, if you follow me and we ride slowly, you’ll be fine.” he says.

Later, I buy a new bike. We ride slowly, but we arrive at work quickly. It takes me about 40 minutes to go to work by bus, but only half an hour by bike! Now I love riding a bike. And I feel healthy. Many people think my idea is good and maybe you can see more bikes on the roads in London.

①That future is almost here. “I think it’s going to happen. Definitely in ten years…and hopefully much, much faster,” said Sebastian Thrun in 2021. At that time, his young company Kitty Hawk Corporation was working on developing a flying car known as eVTOL, or Electronic Vertical Take-Off and Landing vehicle（车辆）.

②Flying to work or school sounds unbelievable. Not only is it fun to fly, but “there would never be traffic again, because the sky is very, very large,” says Thrun. He also thinks eVTOLs could be greener than common cars. “We go much faster, we go in a straight line, we fly on less energy,” he says.

③So far, though, flying cars haven’t taken off as a product. Will their day come? There are still many problems to solve. Their high price means most people won’t be able to afford one. So, some companies are developing them as air taxis that people could pay to ride. The main problem with flying cars is safety. Accidents in the air are dangerous to both the passengers and anyone on the ground beneath. To make eVTOLs safer, many developers are aiming to make them self-flying—no human pilot required.

④Another problem is space. Most aircraft need long runways to take off and land. Lifting straight up and down like a helicopter solves this problem. But eVTOLs still need special spaces, called vertiports, for take-off and landing. Finding places to put these could be tricky, especially in crowded cities. But maybe some could go on top of buildings.

⑤What do you think? Would you enjoy riding to school or to visit a friend in a self-flying taxi? Are flying cars a good idea, or should we find other ways to get around in the near future?

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