The skyscrapers (摩天大楼), most of which have large glass windows, have led to a great need for window cleaners. Window cleaners can earn as much as $35 an hour through the job, but accidents sometimes happen. Luckily, the dangerous work may soon be done by Ozmo, an intelligent window-cleaning robot.
Ozmo, like human window cleaners, also uses brushes and its arms to clean the dirt on the glass windows. A 3D map of the building programmed into its system allows the robot to skillfully move up and down. Computer vision and touch sensors (传感器) enable it to move out of the way when a window opens suddenly.
Unlike human window cleaners, Ozmo does not require soap to clean the glass windows. It only uses pure water to do the job, so it is environmentally friendly.
While it takes three human window cleaners 480 hours to clean the windows of a 40-story building, Ozmo can finish the work in just 80 hours. Moreover, unlike other robots, Ozmo will not replace human window workers. It only make them safer. They will control it on the ground.
Whether Ozmo, which is still being tested, can finish the work as well as human window cleaners remains to be seen. Past experiences of using robots to do the work were disappointing, because the robots didn’t have the same eyes as humans and they often missed the soot (烟灰) on the corners of windows.
1. The second paragraph mainly tells us ________.A.how Ozmo cleans glass windows smartly |
B.what makes Ozmo a popular robot |
C.why Ozmo does its job slowly |
D.why Ozmo is more interesting than human window cleaners |
A.Computers. | B.Soap. | C.Soot. | D.Pure water. |
A.1360 | B.970 | C.520 | D.400 |
A.Ozmo will take the place of human window cleaners. |
B.Ozmo can help human window cleaners do their work safely. |
C.As an intelligent window-cleaning robot, Ozmo is successful. |
D.Ozmo does harm to the environment while cleaning windows. |
相似题推荐
【推荐1】Driving coaches(教练)might soon be replaced by AI in the near future. A company in China has developed an AI-powered driving coach called RoboCoach, and it has already been used in driving schools.
However, RoboCoach is not a human-like robot that sits next to you and criticizes your driving skills. The digital(数字的)driving coach developed by Beijing Yi Jia Jia Technology is actually a teaching and safety control system(系统)put into the car.
The other way in which RoboCoach differs from human driving coaches is even more interesting, though. RoboCoach will call you as “mommy” or “daddy”, which is surprisingly funny for a system.
Besides the voice, the system uses a screen and a smart mirror to communicate with the learner. RoboCoach uses sensors(传感器)to slow down if the car runs into an object or speeds up suddenly for no reason, similar to how self-driving cars work.
“The RoboCoach has more than 40 different sensors on the car to sense people, other cars and roads, “Yi Jia Jia’s founder Ma Hong told Abacus, “It communicates with learners and makes proper decisions and instructions. “
The car also has radar(雷达)systems for faster decision making, he said. The system isn’t just keeping new drivers from running into objects. It also collects information on the learner’s driving behavior. It reads these driving habits in real time to see if the learner is calm or easy to get mad during practice and then changes its teaching style. By recording all the problems a learner has during lessons, the system will help the new driver correct past mistakes and prevent new ones.
The RoboCoach has recently been used in five driving instruction centers, which are owned by Yi Jia Jia’s parent company Hebei Lian Investment, as well as 22 other driving schools across China.
1. It can be learned from the passage that RoboCoach ________.A.will be used in driving schools soon | B.looks like a robot sits next to the learner |
C.is a safety control system in the car | D.plays the role as learners’ parents |
A.communicating with the cars nearby | B.making decisions after thinking for a long time |
C.teaching learners when to change driving ways | D.choosing proper teaching style for drivers |
A.learners | B.mistakes | C.cars | D.lessons |
A.encourage people to get driver’s licenses | B.show a different way to stop car accidents |
C.make RoboCoach known around the world | D.introduce a new technology of learning driving |
【推荐2】In movies, we sometimes see cars flying in the sky. But now we can see them in real life as well. A US company made a flying motorcycle (摩托车) called Speeder. It is the world’s first flying motorcycle.
Speeder doesn’t have wheels (轮子) like other motorcycles. It has a touch screen (触摸屏). Riders can turn the motorcycle around by touching the screen. Riders can also use the screen to talk to people on the ground.
According to the company’s official website, Speeder can fly as high as 4,000 m above ground. Speeder has four engines (引擎). It can fly at a speed of 240 km per hour. That’s much faster 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.
Did you know?
Speeder riders must weigh less than 109 kg. If a rider is too heavy, it will be hard for the
motorcycle to take off.
Speeder riders must have a pilot’s license (飞行员执照).
Speeder can only ride in the sky.
1. What does Speeder look like?
A.It looks like a car. | B.It looks like a bicycle. |
C.It looks like a plane. | D.It looks like a motorcycle but without wheels. |
a. Turn the motorcycle around. b. Turn the motorcycle into a car.
c. Talk to people on the ground. d. Watch videos.
A.ab | B.ac | C.bc | D.bd |
A.can fly over 240 km above the ground | B.can fly as fast as a plane |
C.can fly for 22 minutes | D.uses clean energy |
【推荐3】It might be strange to wear clothes made out of plastic bottles. But in fact, some clothing companies are already making clothes like these.
Fashion brand JUMA recently showed its newest collection at a workshop in Shanghai. Eighteen clothing things from the collection, including jackets, shirts and dresses, were made from recycled plastic bottles.
“We realized that billions of water bottles were being thrown into landfills (垃圾填埋场) and oceans every year and that these bottles take hundreds of years to decompose (分解). We thought we should use them to create our clothes and help the environment, said Alia Juma, the company’s design director.
Many other fashion companies are finding similar ways to save our planet these days. The process is really simple. First, the plastic bottles are washed and cut into small pieces. Then they are melted (融化) and shaped into small balls. The balls are melted again to form thread (线). People can then use the thread to make different kinds of clothes.
According to Juma, it takes 67, 000 bottles to create 1 ton of thread. This reduces carbon emissions (碳排放) by 4.2 tons and water use by 6.2 tons compared with the normal way of making thread.
“Five bottles can make a shirt. Ten can make a dress, and 20 a short coat,” Juma said.
Some people might have doubts about wearing something made out of plastic bottles. But it is reported by Causeartist, a website that focus on creativity, that the quality (质量) of the clothes made from plastic bottles could be even better than nylon (尼龙) and polyester (涤纶). Plastic thread can be made into different materials, such as cotton, silk, or even wool. It seems that this may lead into a greener future of fashion.
1. Why did JUMA make clothes out of plastic bottles?A.To make a new fashion. | B.To compete with other companies. |
C.To solve the design problem. | D.To reduce plastic rubbish and save Earth. |
①small balls ②plastic piece ③clothes ④plastic thread ⑤plastic bottles
A.⑤②④①③ | B.⑤①②④③ | C.⑤②①④③ | D.⑤①②③④ |
A.They are of good quality. | B.They will cause doubts. |
C.They are strange to wear. | D.They need to be more creative. |
A.Clothes made from plastics. | B.The process of making clothes. |
C.The reason for making plastic clothes. | D.Save our planet. |
【推荐1】There are many cafés (咖啡馆) on the streets. In some cafés, you can just eat and drink. In some cafés, like Gear Coffee, you can also see people singing songs. And in some cafés, you can play with animals. Now, let me tell you about three nice animal cafés.
Amix Coffee is a café with a lot of fish. There you have to take off your shoes. When you drink coffee, fish will swim (游泳) around your feet. Many kids like to go there to play with the fish.
Animal Café has dogs, cats, and many other small animals. When you get to the café, you have to wash (洗) your hands first. Then, you can eat, drink, and play with the cute animals.
Bunny Café has many rabbits. You can play with the rabbits and give them vegetables. If you really like the rabbits there, you can even take one home. But kids under (在……以下) the age of five can’t go there.
If you like drinking coffee and being with animals, try an animal café!
1. You can see people ________ at Gear Coffee.A.acting | B.singing | C.reading | D.playing |
A.kids | B.women | C.teachers | D.doctors |
A.order food | B.sing songs |
C.wash your hands | D.take off your shoes |
A.Gear Coffee | B.Amix Coffee | C.Animal Café | D.Bunny Café |
A.Nice animal shows | B.A visit to the café |
C.Some animal cafés | D.Our animal friends |
【推荐2】Costa Rica is not a traditional northern country. Here you do not have the turn of four different seasons: spring, summer, fall and winter. It only has two seasons: dry season and wet season. So for tourists, when is the best time to go to Costa Rica?
Most people like visiting Costa Rica in the dry season. The sun shines brightly almost every day from December to April and people won’t get wet. This allows them to visit more places during the trip.
The best thing to do in Cota Rica in the dry season is to enjoy the beaches. The sunny weather allows people to enjoy the fun beach activities like swimming and surfing(冲浪). If you want quieter beaches perfect for swimming, you can visit the Gulf of Papagayo and Peninsula Papagayo. If you want beaches perfect for surfing, go to beaches like Tamarindo, Playa Grande, Nosara and Pavones.
The wet season is also great for sightseeing(观光). The hotel price is not high and there are much fewer visitors around. In the wet season, Costa Rica shows its green scenery(风景). The rain from May to November helps the rainforest grow. Waterfalls get stronger as more water flows in the rivers. And, yes, you can go out and see all of this.
The wet season doesn’t mean that you can’t leave your hotel. The rain usually comes in the afternoons and the mornings are often sunny and dry. So you are still able to enjoy the beautiful scenery in the rainy months of Costa Rica.
So in which season would you like to visit Costa Rica?
1. How many seasons are there in Costa Rica? ________A.Two. | B.Three. | C.Four. |
①Nosara
②Peninsula Papagayo
③Pavones
④Tamarindo
A.①②③ | B.①②④ | C.①③④ |
A.when people should visit Costa Rica |
B.how Costa Rica changes in rainy months |
C.why people can visit Costa Rica in the wet season |
A. | B. | C. |
【推荐3】April 27 is a special day in Britain. It's called Take Our Daughter to Work Day. It was brought to Britain in 1994 from America. On that day thousands of girls take a day off school and go with one of their parents to their work places. By doing this, it can teach girls more about the society where they live.
Now the girls can have a close look at what their parents are doing. This may help them to be calmer when they have to choose a job. Mary experienced a day of work at her mother's office. This helped her understand her mother's work better. She said that this made her feel more confident about her future.
Schools and many companies support the activity, too. Some schools even make the day a necessary part of school life.
Experts think that girls with more self-confidence are more likely(可能的)to be successful than common girls. If parents can set good examples both at work and at home for them, they will do better than others. Take Our Daughter to Work Day is surely a step in the right direction.
1. On Take Our Daughter to Work Day, thousands of girls ________.A.go on a journey with their parents |
B.have a party with their friends at home |
C.go to the work places of one of their parents |
D.take part in a school activity freely |
A.It is a special activity on April 27 in Britain. |
B.Schools and many companies support this activity |
C.Many girls like this day because they won't go to school. |
D.Some schools even make the day a necessary part of school life. |
A.It can help girls understand their parents' work better. |
B.It can teach girls more about the society. |
C.It can make girls feel more confident about their future. |
D.All of the above. |